In which of the following ways does a bacterial cell differ from an animal cell?
A. bacterial cell is much larger than an animal cell
B. bacterial cell has more mitochondria than an animal cell
C. bacterial cell has RNA for its genetic material, whereas an animal cell does not
D. a bacterial cell does not have membrane-bound organelles, whereas an animal cell does
Answers
Answer: It would be option D, "a bacterial cell does not have membrane-bound organelles, whereas an animal cell does." Bacteria cells are prokaryotic. This means that they have no membrane bound nucleus or membrane bound organelles whereas a plant or animal cell does.
Related Questions
species that occur in the same location and are phenotypically different are called species.
Answers
Sympatric speciation are the kind of species that occur in the same location and are phenotypically different.
Here gene flow is occuring and there is no physical barrier between the two but if populations become separated, gene flow between them ceases.
speciation occurs even through the 2 groups are leaving in the same location which is unlike the allopatric speciation.
when they exist differently, they cannot interbreed and exist as 2 different species with many different characters.
we can say that from the ancestral species, a new variety of species arises with no geographical isolation
in sympatric speciation, we can see speciation phenomenon most commonly occurs through polyploid.
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Which organelle in the table is correctly matched with its function?
chloroplast
cell wall
cell membrane
vacuole
Answers
Answer: cell wall
Explanation:
Mark me brainliest :)
Answer:
Its B On Edge 2020
Explanation:
I Took The Quiz & Got It Right .
Which of these best explains the difference between eukaryotes and prokaryotes?
A.Eukaryotes have simpler cells and can only be unicellular.
B.Eukaryotes have simpler cells and can be either unicellular or multicellular.
C.Eukaryotes have more complicated cells and can only be multicellular.
D.Eukaryotes have more complex cells and can be either unicellular or multicellular.
Answers
Answer:
B. Eukaryotes have more complex cells and can be either unicellular or multicellular.
Answer:
Eukaryotes have more complex cells and can be either unicellular or multicellular. ... Plant cells have cell walls and chloroplasts; animal cells do not.
Identify the number of neutrons
Atomic number: 23
Atomic mass: 51
Question 1 options:
28
18
22
23
Answers
in this experiment you observed the effect of stimulating the isolated skeletal muscle multiple times in a short period with complete relaxation between the stimuli. describe the force of contraction with each subsequent stimulus. are these results called treppe or wave summation?
Answers
The isolated skeletal muscle was stimulated multiple times in a short period of time while completely relaxed, resulting in an increase in contraction force. This is known as treppe.
Explain force of contraction?The term contraction is used to describe the generation of muscle force in general, and it emphasizes the fact that muscles can only produce tensile force (or contractile force). When a single action potential is delivered to a muscle, it produces a brief burst of force known as an isometric twitch.The force generated by a muscle is proportional to its length and shortening velocity. Many key biomechanical properties, such as running speed, strength, and jumping distance, are limited by these two fundamental properties.Isometric: A muscular contraction in which the muscle length does not change. Isotonic: A muscular contraction in which the muscle length changes. An eccentric contraction is an isotonic contraction in which the muscle lengthens. A concentric contraction is an isotonic contraction in which the muscle shortens.To learn more about force of contraction refer to :
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QUICK, I HAVE LESS THAN 10 MINUTES TO ANSWER THIS QUESTION:
Select one:
a. 2, 1, 5, 4, 3
b. 5, 4, 3, 2, 1
c. 2, 3, 5, 1, 4
d. 2, 1, 4, 3, 5
e. 1, 2, 3, 4, 5
Answers
The virus enters the cell by endocytosis. In the cytoplasm, the capsid breaks, releasing the RNA genome. The correct sequence of events in the viral cycle is 2, 1, 5, 4, 3
How is the virus introduced into the cell?The virus enters the cell by endocytosis. In the cytoplasm, the capsid breaks, releasing the RNA genome. Replication and gene expression. The RNA genome is copied (this would be done by a viral enzyme, not shown) and translated into viral proteins using a host ribosome.
Viral replication, which occurs inside the host cell, evolves following the steps of
AdsorptionPenetrationStrippingTranscription and translation (synthesis)Maturation Release.With this information, we can conclude that the correct sequence of events in the viral cycle is 2, 1, 5, 4, 3
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They wondered how the insides of the single-celled organisms compared to the insides of animals. This is what they said:
Lanny: “I don’t think they have any of the organs animals have.”
Dorothy: “I think they have a few of the organs most animals have.”
Seamus: “I think they have a few of the organs simple animals, like worms, have.”
Nick: “I think the only organs they have that animals also have are the digestive organs.”
Valynda: “I think the only organs they have that animals also have are the organs they use for breathing.”
Brian: “I think they have all of the organs that most animals have, they are just a lot smaller.”
Which person do you agree with the most? ______________
Explain why you agree. Describe what you think you would see if you could look inside a single-celled organism with a powerful microscope.
Answers
Answer:
Nick
Explanation:
*
Which is a product of photosynthesis?
O ATP
O glucose
water
carbon dioxide
Answers
Answer:
glucose
Explanation:
photosynthesis is performed by green leaves to provide the plant with energy. Energy is taken by plant from food and food plants eat is glucose hence glucose is the product[result] of photsynthesis.
What plant cell absorbs water and minerals from soil
Answers
Answer:
Roots.
Explanation:
Roots anchor the plant, absorb minerals and water, conduct water and nutrients, and store food.
Answer:
Explanation:
nee de wortel
Which sentence about protists is accurate?
All protists are unicellular and microscopic in nature. They have organelles, so protists are eukaryotic in nature. All protists make their own energy through photosynthesis.
Reset Next
Answers
Protists are a group of diverse eukaryotic, predominantly unicellular microscopic organisms that may share certain morphological and physiological characteristics with animals or plants or both. They have a nucleus that contains their genetic material, DNA. Some protists are autotrophic and can make their own energy through photosynthesis, while others are heterotrophic and consume other organisms for food.
Out of the three sentences given, only the second one is accurate. The first one is false because not all protists are unicellular and microscopic; some are multicellular and macroscopic, such as kelp. The third one is false because not all protists make their own energy through photosynthesis; some are heterotrophic and depend on other sources of organic matter. Therefore, the correct answer is:
They have organelles, so protists are eukaryotic in nature.
A student predicts that ice cubes with the same size, shape, and
volume will melt faster in a microwave than in a pot on the stove.
(Hypothesis: If the ice cubes are heated in the microwave, then they
will melt faster than if they are heated on the stove) How should this hypothesis be tested?
Be sure to explicitly mention the following:
- Independent variable
- Dependent variable
- Two controlled variables
- Type of data you will collect
- Type of tools you will use to collect your data
Answers
Answer: Answer is A. the heat is transferred from the drink to the ice cube, not transformed.
Explanation:
Independent variable: The type of heating method (microwave or stove).
Dependent variable: The time it takes for the ice cubes to melt.
Controlled variables:
The number of ice cubes.The size, shape, and volume of the ice cubes.The starting temperature of the ice cubes.The power setting of the microwave.The heat setting of the stove.Type of data: The time it takes for the ice cubes to melt.
Type of tools: A stopwatch and a thermometer.
The hypothesis can be tested by measuring the time it takes for ice cubes to melt in a microwave and in a pot on the stove, while controlling for the other variables.
The independent variable is the type of heating method (microwave or stove). The dependent variable is the time it takes for the ice cubes to melt. The controlled variables are the number of ice cubes, the size, shape, and volume of the ice cubes, the starting temperature of the ice cubes, the power setting of the microwave, and the heat setting of the stove.
To collect data, we can use a stopwatch to measure the time it takes for the ice cubes to melt in each condition. We can also use a thermometer to measure the starting temperature of the ice cubes.
To ensure that the results are accurate, it is important to control for the other variables. For example, we need to make sure that the number of ice cubes is the same in each condition, and that the ice cubes are the same size, shape, and volume. We also need to make sure that the starting temperature of the ice cubes is the same in each condition.
Once we have collected the data, we can analyze it to see if there is a significant difference in the time it takes for the ice cubes to melt in the two conditions. If there is a significant difference, then we can conclude that the hypothesis is supported.
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Please help me its my last queston
Answers
Answer:
Top right- bb. Bottom left = Bb. Bottom right- bb
Explanation:
Find the two letters that interset the box and fill them the upper or lowercase letter depending on where and what the letter are outsde the Pennet Square
If you have 50 mg of starch, how much water needs to be added to make a concentration of 5g/mL.
Answers
1:5 dilution = 1/5 dilution = 1 part sample and 4 parts diluent in a total of 5 parts. If you need 10 ml, final volume, then you need 1/5 of 10 ml = 2 ml sample. To bring this 2 ml sample up to a total volume of 10 ml, you must add 10 ml - 2 ml = 8 ml diluent.
11. By what process do streams and rivers move material?
O infiltration
O mass wasting
O erosion
O weathering
Answers
Erosion is the process by which Earth's surface is worn away by the action of water, wind, ice, or gravity. Hence option C is correct.
Streams and rivers are agents of erosion, and they move material by a variety of processes, including:
Dissolution - The water in a stream can dissolve minerals from the rocks and soil that it flows over.
Suspension - Fine particles of sediment can be suspended in the water and carried downstream.
Traction - Larger particles of sediment can be rolled or bounced along the bottom of the stream.
Saltation - Small pebbles and stones can be bounced along the bottom of the stream.
The type of erosion that a stream or river causes depends on the size of the particles that it is carrying. Streams and rivers that carry a lot of fine sediment are called suspended-load streams. Streams and rivers that carry a lot of large particles are called bed-load streams.
Erosion by streams and rivers can have a significant impact on the landscape. It can create valleys, canyons, and deltas. It can also transport sediment to other areas, where it can be deposited and form new landforms.
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What is one function of MEIOSIS? (Choices in picture)
Answers
Answer:
A
Explanation:
Meiosis is what happens when a parent cell splits into four smaller daughter cells, each of which has 1/2 the number of chromosomes in the parent cell. Meiosis is used to create gametes.
The reactants for cellular respiration area. glucose and ATP.b. water and ATP.c. oxygen and ATP.d. glucose and oxygen.e. carbon dioxide and glucose.
Answers
Cellular respiration is a very important process for organisms because it is from it that part of the energy necessary for survival is generated.
In respiration, we consume oxygen and glucose and form carbon dioxide, energy, and water as products.
Therefore, we can say that the reactants of cellular respiration are oxygen and glucose. Therefore, option "D" is the answer.
A friend who knows a lot about science reads in a book that a piece of black paper will get warmer in sunlight than a piece of white paper. Which of these is a scientific reaction to this information?
a) Accept the statement as true because your friend knows about science.
b) Design an experiment to show whether the statement is correct or incorrect.
c) Believe the statement because it was written in a book, so you can trust it to be true.
d) Tell your friend that the statement makes no sense because color does not affect temperature.
Answers
Answer:
B
Explanation:
Principle that the maternal and paternal alleles for a trait separate from one another during gamete formation and then reunite during fertilization; Mendel's first law of inheritance.
Answers
Principle that the maternal and paternal alleles for a trait separate from one another during gamete formation and then reunite during fertilization; Mendel's first law of inheritance also known as the Law of Segregation.
This law states that during gamete formation, the maternal and paternal alleles for a trait separate from one another, ensuring that each gamete carries only one allele for each trait. This segregation occurs because of the process called meiosis, where the chromosome number is reduced by half in the formation of gametes. During fertilization, these gametes unite, and the offspring inherit one allele from each parent, thus restoring the normal number of chromosomes.
The Law of Segregation is a fundamental principle in genetics, and it was discovered by Gregor Mendel, a 19th-century Austrian monk who conducted extensive experiments with pea plants. His work established the basis for understanding inheritance patterns and the foundation for modern genetics, the law helps explain the genetic variations seen in offspring and the predictable patterns of inheritance. In conclusion, Mendel's First Law of Inheritance emphasizes the significance of the separation and recombination of alleles during reproduction, which plays a crucial role in the expression and inheritance of traits in organisms.
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hemagglutination occurs when certain viruses are mixed with lymphocytes.T/F
Answers
False. Hemagglutination occurs when certain viruses are mixed with red blood cells (RBCs), not lymphocytes.
Hemagglutination is a process where red blood cells (RBCs) clump together due to specific interactions between viral particles and the surface molecules on RBCs. This phenomenon is commonly observed with certain viruses, particularly those that possess hemagglutinin proteins on their surface. Examples of viruses that can cause hemagglutination include influenza viruses and some strains of paramyxoviruses.
When these viruses come into contact with RBCs, the viral hemagglutinin proteins bind to specific receptors on the surface of the RBCs. This binding leads to the agglutination or clumping of the RBCs, resulting in a visible reaction.
It is important to note that lymphocytes are different from RBCs. Lymphocytes are a type of white blood cell that plays a crucial role in the immune response. They are not involved in the process of hemagglutination. Therefore, the statement that hemagglutination occurs when certain viruses are mixed with lymphocytes is false. Hemagglutination occurs specifically with RBCs.
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Paclitaxel affects not only cancer cells, but normal cells as well. Would the effects of Paclitaxel be seen first in organs that have quickly dividing cells (like the intestine and hair follicles) or in organs that have slow or nondividing cells (like muscles and the nervous system). Justify your reasoning.
Answers
Answer: The most affected would be organs that have QUICKLY dividing cells (like the intestine and hair follicles).
Explanation:
Cancer cells are cells that divides uncontrollably giving rise to a mass of tissue called tumour. They grow faster than a normal cell in an uncoordinated manner, and continues to grow after the initial stimulus has ceased.
Paclitaxel is a drug that is approved for the treatment of cancer affecting different parts of the body. It's a microtubule-stabilizing drug whose mechanism of action is to induce mitotic arrest in the cancer cells.
Paclitaxel in its cause of action not only affect cancer cells but normal cells as well. To justify this statement, as stated earlier, the mechanism of action of paclitaxel is to induce mitotic arrest. Therefore the cells of organs where rapid mitosis occurs would be most affected. Skin cells, hair follicles and the cells lining our intestines (epithelial cells) all have high rates of mitosis as these tissues constantly need to be replaced.
Effects of Paclitaxel would be visible first in organs that have quickly
dividing cells.
This is because the drug Paclitaxel helps to stop rapid growth that occurs in
cells during mitosis. Tumor results from uncontrolled rapid growth and
division of cells during the process of mitosis.
The effects of the drug will be seen with cells who experience more rapid
dividing cells which is the reason why chemotherapy effects are very visible
in the area of loss of skin and hair cells.
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Is this statement true or false?
There is nothing we can do to help prevent soil erosion. Only scientists and farmers can work on solutions.
Answers
Answer:
FALSE!
Explanation:
The more you anticipate and pre meditate ways to help this field of economical science, there is at least 1 or more ways to help this situation. We could help by doing research and doing community service dealign with this specific issue and help fix the problem community by community! hope this helps!
point possible (graded) Adipocytes principally express Glut4, the insulin-responsive transporter. Knowing this, which of the following statements describes the metabolism of glucose in adipocytes? O Adipocytes are completely dependent on glucose for their metabolism.
Answers
The statement that "adipocytes are completely dependent on glucose for their metabolism" is not accurate. While it is true that adipocytes primarily express Glut4, the insulin-responsive transporter, indicating their responsiveness to insulin and glucose uptake, adipocytes have a diverse metabolic profile beyond glucose metabolism.
The statement that "adipocytes are completely dependent on glucose for their metabolism" is not accurate. While it is true that adipocytes primarily express Glut4, the insulin-responsive transporter, indicating their responsiveness to insulin and glucose uptake, adipocytes have a diverse metabolic profile beyond glucose metabolism.
Adipocytes play a crucial role in energy storage and release in the form of triglycerides. Glucose can be used as a substrate for lipogenesis, where it is converted into fatty acids and incorporated into triglycerides for storage in adipose tissue. However, adipocytes can also utilize other energy sources such as free fatty acids derived from lipolysis or even amino acids for energy production.
Additionally, adipocytes are involved in various metabolic processes such as hormone synthesis and secretion. They produce hormones called adipokines, which regulate energy balance, insulin sensitivity, inflammation, and other physiological processes.
While glucose metabolism is an important aspect of adipocyte function, it is not the sole source of energy or the exclusive metabolic pathway in these cells. Adipocytes exhibit a complex metabolic network, allowing them to adapt to different energy sources and metabolic demands.
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Which two body systems are interacting in the diagram?
Answers
Answer:
Where is the diagram pls?
how the plantlets are produced?
Answers
state the effect of weather on humans activity
Answers
Answer:
This will help you alot in understanding.
1. Which of the following is an example of carbon being moved from the biosphere to the lithosphere?
Animals preform respiration and exhale carbon dioxide into the air.
Carbonate ions dissolved in oceans become incorporated into seashells by aquatic animals.
Organic materials fall to the ocean bottomn and become incorporated into sediment.
Fossil fuels are bumned by factories to release energy.
A
Answers
The example of carbon being moved from the biosphere to the lithosphere is "Organic materials fall to the ocean bottom and become incorporated into sediment".
What is carbon being moved from the biosphere to the lithosphere?When organic materials, such as dead organisms or their waste products, sink to the ocean floor, they can become buried in sediment. Over time, the pressure and temperature of the sediment can cause it to undergo a process called diagenesis, where it turns into rock.
This process can convert the organic material into fossil fuels, such as coal or oil, which are stored in the lithosphere. Therefore, organic materials falling to the ocean bottom and becoming incorporated into sediment is an example of carbon being moved from the biosphere (living organisms) to the lithosphere (rock layer).
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Which of the following statements about fire ants
in the United States is TRUE?
A They reproduce slowly.
B_They are a native species of the United States.
C They are an invasive species.
D They do not compete with other ant species.
Answers
Fire ants are invasive species and native species of the United States. Thus option B and C are correct.
What are the characteristics of fire ants ?
Fire ants are class of ants belongs to arthropods which build anthill mounds in soft soil mainly for their colonies, lack a central opening with more than 20 species of fire ants worldwide.
The Native fire ants are up four major subspecies such as native southern fire ants, tropical fire ants, desert fire ants and little fire ants.
The native fire ants are Uniform in size which Vary from 1/16-in. to almost 1/4-in, Range from bright red to black
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During splicing, which molecular component of the spliceosome catalyzes the excision reaction?
A. DNA
B. RNA
C. Protein
D. Lipid
E. Carbohydrate
Answers
The elimination reaction is triggered by the RNA molecule component of a spliceosome during splicing.
What is RNA and why is it important?Most biological cells contain ribonucleic acid (RNA), a crucial biological macromolecule. It plays a major role in the production of proteins by acting as a messenger to DNA, which in turn carries the genetic instructions necessary for the growth and maintenance of life.
What is difference between RNA and DNA?The double molecule with a lengthy chain of nucleotides is called DNA. The single-stranded molecule called RNA has a shorter nucleotide chain than other molecules. DNA is self-replicating; it reproduces itself. RNA cannot duplicate itself.
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3. The period of cell division is called
a.
e. interphase
f. cytokinesis
g. mitosis
h. protoplasm
Answers
Answer:
g. mitosis
Explanation:
mitosis is when cells divide
Svetlana learned that there are organisms that live deep in the ocean that produce food using energy stored in chemicals.
a. True
b. False
Answers
Deep-water organisms use the process of chemosynthesis because they lack access to sunlight, which is necessary for them to manufacture their food.
Explain about the chemosynthesis?Bacteria produce food (glucose) by the process of chemosynthesis, which substitutes chemicals for sunlight as the energy source. Where there is no sunshine, chemosynthetic organisms thrive around hydrothermal vents and methane seeps.
Organisms that carry out chemosynthesis include chemoautotrophs. They consist of specific bacterial groupings like the sulfur-oxidizing gamma proteobacteria, epsilon proteobacteria, and neutrophilic iron-oxidizing bacteria as well as certain archaea like the methanogenic archaea.
Chemosynthesis is the conversion of carbon (often carbon dioxide or methane) into organic matter utilizing inorganic molecules (hydrogen or hydrogen sulphide) or methane as the energy source. Plant photosynthesis is the primary method through which the majority of energy is produced.
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