What 6 things do most bacteria need to grow?
Answers
Most bacteria need the following six things to grow, Nutrients, Water, Temperature, pH, Oxygen, and Time.
Nutrients: Bacteria require a source of energy and building blocks, such as carbohydrates, lipids, proteins, and minerals, in order to grow and reproduce.
Water: Bacteria need water to survive and grow, as it is essential for many of the chemical reactions that occur within cells.
Optimal temperature: Different types of bacteria have different temperature requirements for growth, but most bacteria grow best within a relatively narrow range of temperatures.
pH: Bacteria have optimal pH ranges for growth, and some are more tolerant of pH changes than others.
Oxygen: Some bacteria require oxygen to grow, while others are able to grow in the absence of oxygen.
Time: Bacteria need time to grow and reproduce, with different species having different generation times.
Overall, these six factors are essential for the growth of most bacteria, and the presence or absence of these conditions can significantly impact the ability of bacteria to grow and reproduce.
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Related Questions
Most nonrenewable energy resources are burned for us to use their energy. Which of the following is a nonrenewable energy source that is NOT burned?
A) nuclear
B) coal
C) natural gas
D) biofuels
Answers
Answer:
The correct answer is - A) nuclear.
Explanation:
Most of the non-renewable sources of energy are fossil fuels that are formed by the thermal decomposition of dead organic matter for million years and are converted to lighter hydrocarbons that contain high electrostatic potential energy.
Burning is the process that breaks the hydrocarbons into water vapor and CO2 with high amount of energy. Coal, natural gas and biofuels all three are fossil fuels and nuclear products are not fossil fuel but radioactive elements.
Describe how an action potential arriving at a presynaptic membrane of a neurone can result
In the depolarisation of the membrane of a post-synaptic neurone.
Answers
2. Nat, moves sideways / attracted to areas at resting potential,A local circuit
3. causes, Na+ ion channels to open / 2nd depolarisation
4. (transmission) in one direction due to, hyperpolarisation / refractory period
5. myelin sheath / Schwann cell
sheath insulates, axon / dendron / neurone
6. depolarisation / action potential, only at nodes of Ranvier / unmyelinated part ora
7. saltatory conduction / action potential
'umps' from node to node
These antibiotics include penicillin and its derivatives and work by inhibiting the production of the bacterial ____________ .
Answers
These antibiotics include penicillin and its derivatives and work by inhibiting the production of the bacterial enzymes
These antibiotics include penicillin and its derivatives and work by inhibiting the production of the bacterial enzymes.
What is Penicillin's mechanism of action?
The Penicillium mold is the source of penicillin, one of the first and still-commonly-used antibiotics. The numerous mold species that produce different types of penicillin ; the naturally occurring penicillins (those produced during the fermentation process of mold) and the semi-synthetic penicillins are two categories into which penicillium can be categorized.
All penicillins function in the same way, which is to inhibit the bacterial enzymes necessary for the creation of cell walls in replicating microorganisms and to activate other enzymes that demolish the microorganism's protective wall. They are therefore only effective against microbes that are actively forming cell walls and multiplying, and they are likewise safe for use on human cells.
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Why does the land around an once active coal mine remain barren?
Answers
Answer:
The ground where the coal was mined is acidic so few plants can grow there.
Explanation:
Usually, the ground surrounding the coal that is mined has a low pH.
Took the quiz ;)
If energy is released, free energy must be what?
Answers
Answer:
If energy is released during a chemical reaction, then the change in free energy from the conversion of the reactants to the products, signified as ΔG (delta G) will be a negative number.
Explanation:
Hope it helped!
Answer:
If energy is released during a chemical reaction, then the resulting value from the above equation will be a negative number. In other words, reactions that release energy have a ∆G < 0. A negative ∆G also means that the products of the reaction have less free energy than the reactants because they gave off some free energy during the reaction.
Explanation:
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The Human Body in Space
NASA monitors the bodies of animals and humans to see how they react to extended periods in space. When the body is in space, it no longer has the strong pull of Earth’s gravity on it. Because the body’s systems normally function in the presence of gravity, NASA has been studying the effects of weightlessness on the body.
Weightlessness Takes a Toll
On Earth, the heart naturally pumps blood more forcefully to the upper body than to the lower body, where gravity helps the blood flow down. In space, the heart continues to pump the blood more forcefully to the upper body, but the balancing force of gravity does not pull the blood to the lower body. This uneven blood flow causes astronauts’ faces to become puffy and their lower bodies to become thin.
The shape of the spine also changes in space. Without the force of gravity pushing the vertebrae closer together, the spine stretches out and causes pain in some cases.
Another system affected in space is the body’s balancing system. To balance itself, the brain acquires information from the eyes, muscles and tendons, and a set of sensors (called the vestibular apparatus) in the inner ear. In space, the only balancing information that can be relied on enters through the eyes, so astronauts have difficulty moving around.
The most serious problem for astronauts, however, is bone loss. In space, the bones lose minerals, such as calcium, potassium, and sodium. The bone loss in the legs can be as high as ten percent, and even exercise does not completely solve the problem.
Laboratory in Space
With the completion of the International Space Station (ISS), NASA will be able to study some of the effects of long-term exposure to weightlessness. NASA also plans to expand its studies to better understand how the immune system is affected and how radiation, which is much greater in space,
affects humans. Radiation can pose serious health threats, including cancer and neurological damage.
Because people working together on the ISS will be in small spaces for long periods of time, NASA also plans to study how working in confined spaces affects astronauts’ personalities.
Infer What does NASA expect to gain by studying the effects of long-term space travel on the human body?
Answers
Answer:
Knowledge gained during the early years of human spaceflight indicated an adaptation to the new environment. While the empirical evidence was limited, the biomedical data indicated that microgravity alters the musculoskeletal, cardiovascular, and neurosensory systems.
Which event has to precede all others during endochondral ossification?
A nutrient artery invades the diaphysis.
An epiphyseal plate is trapped between the diaphysis and either epiphysis.
A cartilage model is formed.
Bone trabeculae appear in the epiphyses.
Answers
The cartilage model is formed before all other events during endochondral ossification. This is an important sequence of events that must take place for the bone to develop.
Explanation:
Endochondral ossification refers to the process of bone development from a cartilage template. The process of endochondral ossification consists of several steps. They are:
The cartilage model is formed.The cartilage model grows and develops.A nutrient artery invades the diaphysis.The cartilage model begins to calcify.Osteoblasts form bone around the calcified cartilage shaft.Bone trabeculae appear in the epiphyses.Secondary ossification centers appear.The epiphyseal plates are formed.The epiphyseal plates undergo longitudinal growth.The cartilage model is formed before all other events during endochondral ossification. This is because the cartilage model serves as the template for bone growth. Without a cartilage model, bone development cannot occur through endochondral ossification.
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Which of the following is the most complete and accurate
description of mutation?
A
Three adjacent nitrogen bases of mRNA that code for an
amino acid.
B
The process of matching anticodon sequences in tRNA to
mRNA codons.
С
A spontaneous change in DNA that may lead to cellular
malfunction.
D
A biomolecule composed of amino acids connected by
peptide bonds.
Answers
Answer: the answer is C
Explanation: mutation is a change in dna that results in overall structure changes to organisms
A spontaneous change in DNA that may lead to cellular malfunction is the most complete and accurate description of mutation.
In genetics, a spontaneous and unpredictable variation in the sequence of genes that make up the DNA of a living being that introduces specific changes is called a mutation.
This alteration, which can be hereditary, implies a modification of its characteristics.
These types of changes occur spontaneously and naturally, product of errors in the replication of the genome during the phases of cell replication.
From a mutation, the living being can develop different diseases, manifest changes in its organism or hereditary defects.
Despite of this, mutations are key to sustaining high genetic variability, promoting adaptation and evolution (even creating new species in the long run).
Therefore, we can conclude that a spontaneous change in DNA that may lead to cellular malfunction is the most complete and accurate description of mutation.
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Aimee is taking a shot of several deer in the forest. She wants to emphasize the size of those deer closest to her. Which lens should she use
Answers
If Aimee wants to emphasize the size of those deer closest to her while taking a shot of several deer in the forest, she should use a wide-angle lens.
Wide-angle lenses have a broader field of view and can capture more of the surroundings in a single frame. They have shorter focal lengths, which can make objects appear smaller than they are.
However, when an object is positioned near the edge of the frame and near the lens, a wide-angle lens can result in distortion, making the object appear larger than it is.
As a result, using a wide-angle lens can make the nearest deer appear more significant than they are.
So, Aimee should use a wide-angle lens to emphasize the size of those deer closest to her.
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Which of the following phrases describe the function of the digestive system?
l. Smooth, muscular tube connects the mouth to the stomach
ll. Muscular action in the esophagus pushed food to the stomach
lll. Structures called the microvilli to increase the surface area of the intestines
lV. Nutrients are made available to the body's cells
A. l and ll
B. ll and lll
C. ll and lV
D. lll and lV
Answers
59) seventeen patients in ten hospitals had cutaneous infections caused by rhizopus. in all seventeen patients, elastoplast bandages were placed over sterile gauze pads to cover wounds. fourteen of the patients had surgical wounds, two had venous line insertion sites, and one had a bite wound. lesions present when the bandages were removed ranged from vesiculopustular eruptions to ulcerations and skin necrosis requiring debridement. fungi are more likely than bacteria to contaminate bandages because they a) are aerobic. b) can tolerate low-moisture conditions. c) prefer a neutral environment (ph 7). d) have a fermentative metabolism. e) cannot tolerate high osmotic pressure.
Answers
fungi are more likely than bacteria to contaminate bandages because they are aerobic and can tolerate low-moisture conditions. The correct answer is (A) (Aerobics can tolerate low-moisture conditions).
Eukaryotic organisms make up the microorganisms known as fungi, which include yeasts, molds, and mushrooms. These organic entities are arranged under realm parasites. Kingdom fungi organisms are everywhere and have a cell wall. They fall under the category of living organisms known as heterotrophs.
Single-celled or extremely complex multicellular fungi exist. They can be found in almost any habitat, but the majority of them live on land, mostly in soil or plant matter, rather than in fresh or salt water.
Any of the approximately 144,000 known species of organisms in the kingdom of Fungi, which includes yeasts, rusts, smuts, mildews, molds, and mushrooms, is a fungus (plural fungi). There are also many organisms that look like fungi, like slime molds and oomycetes (water molds), which are not in the kingdom of fungi but are still commonly referred to as fungi.
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A sterile mule is produced by mating a horse and a donkey. From this observation you could conclude?
Answers
From the observation, it can be concluded that the horse and the donkey are of different species, and the offspring, a mule, is sterile.
When a horse and donkey mate, the offspring they produce is called a mule. This is because the horse and the donkey are of different species, and their offspring is a hybrid.
Mules are sterile because they have an odd number of chromosomes, which makes it difficult for them to produce viable gametes. Therefore, they are unable to produce offspring.
When a horse and a donkey mate, they produce an offspring known as a mule. However, the mule is sterile and cannot produce offspring. This is due to the difference in the number of chromosomes between the horse and donkey.
Horses have 64 chromosomes while donkeys have 62. When they mate, the offspring receives 63 chromosomes. This makes the mule sterile since the chromosome number is an odd number.
Mules are usually used for work because they are stronger than horses and can carry heavier loads. They are also less stubborn and more patient than donkeys, making them easier to work with.
The fact that the mule is sterile has prevented the breeding of horses and donkeys to produce mules.
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which of the following statements concerning gpcr (7tm) is true? a) heterotrimeric g-protein binding occurs only at the c-terminal tail of the receptor. b) upon hormone binding, there is activation of an intrinsic tyrosine kinase that is associated with the n-terminus of the receptor. c) their activation is terminated by alpha-subunit catalyzed hydrolysis of gtp to gdp. d) their activation involves phosphorylation of gdp to form gtp on the g-protein alpha subunit. e) upon hormone binding, the membrane-spanning subunits of a gpcr form an ion channel.
Answers
Using the theories of GPCR, we got that the statement concerning GPCR(7tm)is true-
b) upon hormone binding, there is activation of an intrinsic tyrosine kinase that is associated with the n-terminus of the receptor.
In terms of the structure, GPCRs are characterized by an extracellular N-terminus, followed by the seven transmembrane (7-TM) α-helices (TM-1 to TM-7) connected by the three intracellular (IL-1 to IL-3) and the three extracellular loops (EL-1 to EL-3), and finally the intracellular C-terminus.
GPCRs have more than one receptors for the following ligands: sensory signal mediators (e.g., light stimulatory molecules);
Hence, the statements concerning GPCR(7tm) is true is --- b)upon hormone binding, there is activation of an intrinsic tyrosine kinase that is associated with the n-terminus of the receptor.
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True/False?the volume of a monatomic ideal gas triples in an isothermal expansion.
Answers
The volume of a monatomic ideal gas triple in an isothermal expansion. This statement is false.
If n moles of an ideal monatomic gas undergo an isothermal expansion at temperature T during which the volume of that ideal gas becomes four times. The work done on the monatomic gas is nRTln4. The change in internal energy of the gas is zero. An isothermal process is a thermodynamics process in which the temperature of the system remains constant. T=0. Since the air doesn't work on expanding, it loses heat, consequently, heat must be added to the air to maintain it at constant temperature. When an ideal gas is subjected to isothermal expansion (∆T = 0) in vacuum the work done w = 0 as p×ex=0. As determined by Joule experimentally q =0, thus ∆U = 0. For isothermal reversible and irreversible changes. It can be expressed as, Isothermal reversible change: q = -w = p×ex(Vf-Vi).
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using the particulate model of matter explain why gases are less dense than solids and liquids?
Answers
Explanation:
In gases, the forces between particles are very weak. This explains why the particles in gases are not neatly arranged. They are not held together tightly and there are large spaces between them. These spaces are much larger than in the solid and liquid state.
Why was the homozygous white bean combination taken out of the gene pool
Answers
The homozygous white bean combination was taken out of the gene pool because it was increasing/dying off.
The gene pool refers to the collection of all the genes, alleles, and genetic information present in a population of a particular species. This includes all the different genetic variations that exist within a population, whether they are expressed or not. The gene pool is important because it determines the genetic diversity of a population, which can affect the population's ability to adapt and survive in changing environments.
Changes in the gene pool can occur due to various factors, such as mutation, gene flow, genetic drift, and natural selection. Scientists study the gene pool to understand how genetic variation is distributed within and among populations, and how it affects the evolution of species over time.
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The complete question is:
Why was the homozygous white bean combination taken out of the gene pool?
What is the data of an experiment?
A Information you learn in the experiment
B The report written about the experiment
C The questions asked in the experiment
D The presentation you give about an experiment
Answers
Answer:
A
Explanation:
you collect information based on what you are doing and how it is responding. therefore you are collecting data
Answer would be A or B
In ______ of meiosis, the bivalents (which are also termed tetrads) are aligned along the center of the cell.
Answers
Metaphase 1 is the stage of meiosis where the bivalents (which are also called tetrads) are lined up in the middle of the cell.
The method of cell division in which the chromosomes in a diploid cell are separated into two daughter cells, each with half the number of chromosomes as the original cell, is known as meiosis. Meiosis is a two-part process, with the first stage known as meiosis I. The initial phase in which bivalents (also known as tetrads) are lined up in the center of the cell is called metaphase I.
During metaphase I of meiosis I, the homologous chromosomes pair up and arrange themselves in the middle of the cell, forming a structure known as a bivalent or tetrad. The spindle fibers begin to stretch, forming attachments to the kinetochores, protein structures on the surface of the chromosomes that aid in the process of separation. The bivalents, or tetrads, are arranged in the center of the cell in preparation for separation in anaphase I, when the sister chromatids of each chromosome are divided into different daughter cells.
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please answer soon :}
Select all the correct images.
Identify the analogous structures.
Answers
Answer:
1
Explanation:
Answer:
I'm pretty sure it's the two different types of wings
Explanation:
I took the test and it said it was the bee wing but not the crab claw
Defined as variation of life on Earth, ____________ is the number and relative abundance of different species.
Answers
Answer: Diversity
Explanation: The earth is composed of different species of organisms spread across various parts and regions of the earth. The idea of having varying classes of species scattered on the earth is called diversity culled from the word diverse, which is used to describe a property of Variation in component. Hence, diversity explains the variation in the number and size of different species, culture and languages (biodiversity) and other components of the human existence. Additionally, the concept of diversity helps us realize the need to respect and embrace our differences in other to foster progressive relationship.
how are survivorship life insurance policies helpful in estate planning
Answers
Survivorship life insurance policies are helpful in estate planning because they can provide a source of liquidity to pay for estate taxes or equalize inheritances among beneficiaries. Here are some ways in which survivorship life insurance policies are helpful in estate planning:
1. Estate tax planning: Estate taxes can be a significant expense for high-net-worth families. When a spouse dies, the surviving spouse typically inherits the deceased spouse's assets free of estate tax. However, when the surviving spouse dies, their estate will be subject to estate tax. A survivorship life insurance policy can provide liquidity to pay for estate taxes, allowing the family to pass on more wealth to their heirs.
2. Equalizing inheritances: Survivorship life insurance policies can also be used to equalize inheritances among beneficiaries. For example, if one child inherits a family business and the other child does not, the child who does not inherit the business may feel slighted. By purchasing a survivorship life insurance policy, the parents can provide the child who does not inherit the business with a death benefit that is equal to the value of the business.
3. Funding trusts: Survivorship life insurance policies can also be used to fund trusts that are established to provide for a surviving spouse or children. For example, a couple might establish a trust that provides income to the surviving spouse and then passes the assets to their children when the surviving spouse dies. The couple can purchase a survivorship life insurance policy that will provide liquidity to the trust when the second spouse dies.
4. Charitable giving: Finally, survivorship life insurance policies can be used to fund charitable gifts. For example, a couple might purchase a policy that pays out to a charity upon their deaths. The premiums for the policy are tax-deductible, and the charity receives a substantial gift.
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Compared with identical twins, fraternal twins are ________ similar in neuroticism and ________ similar in extraversion.
A) more; less
B) less; more
C) more; more
D) less; less
Answers
The answer to the question asked is "B) less; more".
Compared with identical twins, fraternal twins are less similar in neuroticism and more similar in extraversion. This statement is true and is the answer to the question given.The major difference between fraternal and identical twins lies in the type of twinning. Fraternal twins are formed from two separate fertilized eggs. They do not share the same genetic makeup, as do identical twins.Identical twins are formed from one fertilized egg that splits into two embryos. This means that they share the same genetic makeup, as each individual is an exact copy of the other.Both types of twins share the same environment during their upbringing, however. It is therefore possible to compare the two to determine how genes and the environment impact various behavioral traits.In terms of extraversion, fraternal twins are more similar than non-twin siblings, and less similar than identical twins. Neuroticism is a trait that has been found to be more prevalent in fraternal twins than in non-twin siblings, but less so than in identical twins.Therefore, the answer to the question asked is "B) less; more".
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Fraternal twins are less similar in neuroticism and more similar in extraversion than identical twins due to differences in genetic makeup.
Explanation:Compared with identical twins, fraternal twins are B) less similar in neuroticism and more similar in extraversion. The difference lies in the genetic makeup since identical twins come from one egg, thus sharing 100% of their genes whereas fraternal twins, born from two separate eggs, share approximately 50% of their genes, same as normal siblings. This genetic divergence will affect personality traits like neuroticism and extraversion.
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What makes amino acids different from each other? (4 points)
Amino group
Carboxyl group
Hydrogen atom
Side chain
Answers
Answer:
The answer is side chain/group.
Answer:
d
Explanation:
Experiment 2
Explain why Calix having X chromosomes from his mother AND father meant chromosomal rearrangement was not the cause
Answers
Chromosomal rearrangement was not the cause because Calix required both an X and a Y chromosome from his father in order to have two X chromosomes and remain a boy.
What is a Chromosome?A chromosome is a llong DNA molecule that contains all or a portion of an organism's genetic code. Genomic information is transported from cell to cell via chromosomes, which are threadlike structures consisting of protein and a single DNA molecule.
The very long, thin DNA fibers in most chromosomes are covered with packing proteins; in eukaryotic cells, the histones are the most significant of these proteins.
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_____ is a term used to describe the influences of multiple genes on behavior.
Answers
The term used to describe the influences of multiple genes on behavior is called "polygenic inheritance."It refers to the transmission of characteristics from one generation to the next in which several genes determine the phenotype of an organism.
When traits or characteristics are determined by more than one gene, they are said to be polygenic. Examples of polygenic inheritance include height, weight, skin color, and eye color. A polygenic inheritance occurs when several genes contribute to a particular trait or characteristic in an organism.
Since most traits are influenced by multiple genes, polygenic inheritance is common in many organisms, including humans. Complex behaviors like language, intelligence, and personality are also believed to have a polygenic basis.
The study of polygenic inheritance is essential for the understanding of complex traits. In most cases, it involves identifying the genes involved in the inheritance of a particular trait, analyzing the interactions between them, and determining how they contribute to the trait's expression.
Polygenic traits tend to exhibit a continuous range of variation rather than discrete categories. That is, the trait is not an either/or situation. Instead, it is a continuum, where individuals fall somewhere along a spectrum.
For example, height in humans is a polygenic trait that shows a continuous distribution of values from short to tall. This continuous distribution results from the combined effects of several genes, each of which contributes a small amount to the overall height of an individual.
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Describe the role of the hippocampal circuits in long-term
memory formation (1000 words)
Answers
Memory development is significantly influenced by the complex network of hippocampal circuits and connections with other brain areas.
Encoding of memories involves sensory information and experiences being processed in the neocortex, which is then transmitted to the hippocampus through pattern separation.
The hippocampus provides contextual and sensory information, facilitating the retrieval of associated memories. The hippocampus also aids in spatial navigation, with place cells in the CA1 region exhibiting activity patterns specific to specific locations in an environment.
The interplay between grid cells, place cells, and head-direction cells enables accurate perception and navigation through space. In conclusion, the hippocampal circuits play a vital role in long-term memory formation, transforming transient experiences into lasting memories, providing the foundation for learning and remembrance.
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The jellyfish life cycle has several stages. During one of these stages, jellyfish reproduce asexually.
Which statement describes an advantage of asexual reproduction?
1.
Only one individual is needed to reproduce.
2.
Only beneficial traits are passed on to offspring.
3.
Two individuals contribute genes to the offspring.
4.
The genetic diversity of the population is increased.
Submit Answer
Answers
Answer:
1
Explanation:
Indicate whether each structure is part of the systemic or pulmonary circuit. Right ventricle Respiratory capillaries Pulmonary trunk Brachial veins Pulmonary Circuit Pulmonary arteries Femoral arteries Aorta Vena cavae Carotid arteries Lungs Systemic circuit Left atrium Pulmonary veins
Answers
Aorta, left atrium, brachial veins, and carotid arteries are among the structures that make up the systemic circuit. Pulmonary arteries, the vena cava, and the lungs are components that make up the pulmonary circuit.
What architectural elements make up the systemic circuit?The systemic circuit includes the right atrium and left ventricle. The systemic circuit is in charge of transporting oxygenated blood from the heart to the tissues and cells as well as returning deoxygenated blood to the heart.
What elements make up the pulmonary circuit?A huge network of arteries, veins, and lymphatics called pulmonary circulation transports blood and other bodily fluids between the heart, the lungs, and the back.
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The interior membrane surface area of mitochondria is greatly increased by structures called _______.
Answers
Answer:
The inner membrane is usually highly convoluted, forming a series of infoldings, known as cristae, that project into the matrix. These convolutions greatly increase the area of the inner membrane, so that in a liver cell, for example, it constitutes about one-third of the total cell membrane.
Explanation:
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Which is true about the cell theory? (Check all that apply)Group of answer choicesIt states that bacteria and other small organisms can arise spontaneously.It states that all organisms are composed of cells.It is accepted today by biologists as applying to virtually all forms of life.It states that all cells come from preexisting cells.
Answers
Explanation:
it is accepted today by biologist as applying to virtually all forms of life