Answer:
Answer = A
Explanation:
The cell membrane separates the material
Extracellular and intracellular materials are separated by the cell membrane. Controls the flow of substances into and out of a cell and maintains the integrity of a cell. The cell membrane, or cell boundary, must provide access to all materials within a cell.
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What would be the genotypes of brown eyed parents who have a blue eyed offspring?
Answer:
If B is the allele for brown eyes and b is blue, the genotype of the blue-eyed man is bb. His wife must be a Bb heterozygote--she must have a B allele (she has brown eyes), but she must also have inherited a b allele from her blue-eyed mother (whose genotype was bb).
Explanation:
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Please help me ur nice...
Answer:
The answer is A
Explanation:
Curly hair (C) is dominant where straight hair (c) is recessive. If a person who is Cc has children with a person that is cc, what is the probability of their children will have curly hair?
a
0%
b
25%
c
50%
d
75%
Answer: c. 50%
Explanation:
If you draw a punnett square you see that the phenotypes you get are Cc, Cc, cc, and cc. If C (curly hair) is dominant over c (straight hair) then those with the phenotype Cc would have curly hair and those with the phenotype cc would have straight hair. 2 out of 4 have Cc (curly hair) so that's 50%.
how many protons and neutrons does argon have
Answer:
18 protons and 22 neutrons (and 18 electrons if needed).
Explanation:
Hope this helped!
another population of maned wolves has 3136 individuals. using the per capita population growth rate you calculated in the previous question, what will the total population size of this second population be after 1 more year? enter that exact value with no rounding.
Per capita death rate measures how many individuals in a population die per unit of time relative to the size of the population.
(a) The per capita death rate can be calculated as: per capita death rate = number of deaths/population size In this case, the number of deaths is 42, and the population size is 246, so: per capita death rate = 42 / 246 = 0.1707
Rounding to the hundredths place, the per capita death rate is 0.17.
(b) The per capita population growth rate can be calculated as per capita population growth rate = (number of births - number of deaths) / population size. In this case, the number of births is 83, and the number of deaths is 42, so: per capita, population growth rate = (83 - 42) / 246 = 0.167
(c) To calculate the total population size of the second population after 1 more year, we can use the formula: new population size = current population size + (current population size x per capita population growth rate)
In this case, the current population size is 3136, and the per capita population growth rate is 0.167, so: new population size = 3136 + (3136 x 0.167) = 3649.712
The exact value of the new population size is 3649.712 (rounded to three decimal places).
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(a) A population of maned wolves has 246 individuals and over a year 83 individuals were born and 42 died. What is the per capita death rate for this population? Enter the value below ROUNDING YOUR ANSWER TO THE HUNDREDTHS PLACE. For example, in the number 12.345, 4 is located in the hudredths place. (b) Using your ROUNDED ANSWERS TO THE TWO PREVIOUS QUESTIONS, calculate the per capita population growth rate for this population. Enter the exact value below. (c) Another population of maned wolves has 3136 individuals. Using the per capita population growth rate you calculated in the previous question, what will the total population size of this second population be after 1 more year? Enter that exact value WITH NO ROUNDING. PLEASE answer all questions
which feature is charatisic of estauries
The estauries are characterized by mix of fresh water and salt water. That is option A
What is estauries?Estauries is defined as the part of water where many rivers meet and sweep into the ocean.
The characteristics of estauries include the following;
The salty water mixed with freshwater resulting to brackish water formation.The gradient of salinity in a semi-enclosed coastal system.Learn more about brackish water here:
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Which feature is characteristics of estauries:
A mix of fresh water and salt water.
swap-like land.
region of land that drains into a body of water.
the gradient of salinity in a semi-enclosed coastal system.
The process by which the zygote attaches to the uterine wall.
Answer:
implantation – the process by which the zygote attaches to the uterine wall.
Answer:
you should really ask someone who know this
The method used to separate strands of DNA into a “fingerprint” is called _______ ______________.
Answer:
gel electrophoresis
Explanation:
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a tick living
on the body of a deer is an example of:
1. mutualism
2. commensalism
3. parasitism
Answer:
3: Parasitism.
Ticks are parasites!
what, approximately, is the fraction of genetic variation in the nuclear genome is that is expected to have a harmful effect on gene function?
Answer: Approximately, 5-10% of genetic variation in the nuclear genome is expected to have a harmful effect on gene function.
What is genetic variation?
Genetic variation is defined as the natural genetic variability between individuals of the same species or different species. As a result of genetic variation, the genetic makeup of each individual differs from that of others, leading to unique traits and phenotypes.
What is the nuclear genome?
The nuclear genome is the collection of genetic material contained in the cell's nucleus. The nuclear genome is made up of chromosomes, which are composed of DNA molecules. Chromosomes carry genetic information and play an important role in determining an individual's traits and characteristics.
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in what way is the observed mode of action of hexokinase consistent with the induced-fit theory of enzyme action?
In accordance with the induced-fit idea of an enzyme adapting to its substrate, the hexokinase molecule understanding of the dynamics significantly upon attachment to the substrate.
What class of chemical is hexokinase?Hexose, a sugar with six carbons, is changed into hexose phosphate by an enzyme known as a hexokinase. Most tissues and organisms employ glucose as a substrate and sugar 6-phosphate as just a byproduct for hexokinases.
What functions do hexokinases have?In addition to its role as a protective signaling molecule, hexokinase II phosphorylates sugar to control glucose metabolism. The major isoform of hexokinase II is increased in tumors and is found in insulin-sensitive tissues. The Akt/mTOR pathway controls hexokinase II expression.
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Which of the following kingdoms are not included under the domain Eukarya?
A Protista
B Bacteria
C Fungi
D Plantae
While Protista, Fungi, and Plantae belong to the domain Eukarya, bacteria are classified in a separate domain known as Bacteria. B Bacteria
The domain Eukarya includes organisms with eukaryotic cells, which have a membrane-bound nucleus and other membrane-bound organelles. Bacteria, option B, are prokaryotic organisms and do not possess a true nucleus or membrane-bound organelles. Therefore, bacteria are not included under the domain Eukarya.
On the other hand, the kingdoms Protista, Fungi, and Plantae are all part of the domain Eukarya. Protista is a diverse kingdom that includes various unicellular and multicellular eukaryotic organisms. Fungi comprises multicellular, filamentous organisms such as mushrooms and molds. Plantae encompasses multicellular, photosynthetic organisms, including plants.
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In animal cells, cytokinesis is accomplished by the formation of a Multiple choice question. cleavage furrow composed of tubulin filaments. cell plate composed of tubulin filaments. cell plate composed of actin filaments. cleavage furrow composed of actin filaments.
Cytokinesis is the process of cell division in which a single cell divides into two new daughter cells. In animal cells, cytokinesis is accomplished by the formation of a cleavage furrow composed of tubulin filaments.
Correct option is A.
Tubulin is a family of globular proteins whose primary function is to help organize and support the cells. During cytokinesis, tubulin filaments assemble themselves into a cleavage furrow which pinches the cell in half and separates it into two new cells. This cleavage furrow is capable of contracting and elongating just the same as any other cellular muscle.
It is an active process, meaning that energy must be expended in order to form the cleavage furrow. Tubulin filaments interact with other cellular organelles including vesicles, organelles, and proteins in order to successfully form the cleavage furrow and ultimately divide the cell in two.
Correct option is A.
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Which organ is
primarily
responsible for
ingesting food?
A. mouth
B. heart
C. anus
D. pancreas
Answer:
a. mouth
Explanation: this shouldn't be difficult
Answer:
mouth bec we eat through mouth .
1. A woman presents breast milk production without being pregnant and without having
given birth in accordance with the above it is most likely that in the body of this
woman there hypersecretion of
a. Insulin
B. Prolactin
C. Cortisol
D. Secretina
the answer is B! prolactin
The difference in charge between the inside and the outside of the nerve fiber when the nerve is at rest is ____ mv.
The difference in charge between the inside and the outside of the nerve fiber when the nerve is at rest is -70 mv.
A neuron's inner is around 70 millivolts more negatively charged than its exterior when the cell is at rest (70 mV; note that this value varies depending on the species and type of neuron). This voltage, which is caused by fluctuations in the quantities of ions inside and outside the cell, is known as the resting membrane potential. If the membrane were equally permeable to all ions, each type of ion would pass through it, and the system would eventually reach equilibrium. Because ions cannot simply cross the membrane at will, there are different concentrations of some ions inside and outside the cell.Learn more about the resting membrane potential with the help of the given link:
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Select TWO statements that describe what the scientists will observe in the ecosystem after fossil fuels have been extracted and burned. Group of answer choices There is more available space for carbon to become fossil fuels. There is less carbon in storage. There will be less carbon in the water. There is more carbon in the atmosphere. There will be more carbon respired by organisms. There will be less carbon released through decomposition.
Answer: There is more carbon in the atmosphere. There will be more carbon respired by organisms.
Explanation:
Fossil fuels are the fuels which are produced after millions of years ago by the decomposition and degradation of the organic matter generated after the death of the plants and animals. The coal, petrol, and natural gas are commonly used fossil fuels as cooking gas and automobile fuels.
The burning of the fossil fuels releases energy in the form of heat and a lot of toxic gases like carbon monoxide and carbon dioxide are released in the atmosphere which increases the concentration of carbon in the air and eventually the living beings will respire more amount of carbon dioxide.
what is the most significant factor affecting environments and biodiversity. describe what role do humans have in protecting or changing this issue?
The most significant factor affecting environments and biodiversity is the way that humans have altered natural habitats to make room for farmland or to obtain natural resources. As humans, it is our role to protect the environment.
To obtain our food, water, fuel, medicines, building materials, and many other necessities, humans must interact with the environment. Through the use of science and technology, we have improved our ability to exploit the environment for selfish purposes, but we have also harmed and polluted it. We have a moral duty to protect the environment for the benefit of present and future generations. Men are polluting the environment, whether they are conscious of it or not. Deforestation, water and air pollution, and greenhouse gas-induced climate change are a few of these. You can promote biodiversity and protect the environment by reducing, reusing, and recycling. Cut back on the waste you generate, volunteer to help with community clean-ups, Educate people, improve water efficiency, Think sustainably when shopping, be cautious, using light bulbs with a long lifespan. Plant a tree, etc.
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what means biotic component?
where in how are chromosome format sig8
The chromosome format sig8 refers to a representation of genetic information using a binary encoding scheme known as Sigma-8. It is commonly used in computational biology and genetics to represent and manipulate genetic sequences. The Sigma-8 encoding scheme assigns 8 bits to each nucleotide base (A, T, G, or C) in a chromosome.
1. Chromosome Format: Chromosomes are structures found in the nucleus of cells that contain genetic information. They consist of DNA molecules tightly coiled around proteins. The format of a chromosome refers to the representation of its genetic sequence.
2. Sigma-8 Encoding: Sigma-8 is a binary encoding scheme used to represent genetic sequences. In this scheme, each nucleotide base (A, T, G, or C) is assigned a unique 8-bit binary code.
3. Binary Representation: In the Sigma-8 encoding, each nucleotide base is represented by a sequence of 8 binary digits (bits). For example, A might be represented as 00000001, T as 00000010, G as 00000011, and C as 00000100.
4. Chromosome Encoding: To represent a chromosome using the Sigma-8 format, the genetic sequence is divided into individual nucleotides, and each nucleotide is encoded using its corresponding 8-bit binary representation.
5. Manipulating Genetic Information: Once a chromosome is encoded in the Sigma-8 format, it can be manipulated using various computational techniques. This encoding allows researchers to perform operations such as mutation, recombination, and selection on the genetic sequences.
In summary, the chromosome format sig8 refers to the use of the Sigma-8 encoding scheme to represent genetic information. This binary encoding assigns 8 bits to each nucleotide base, allowing for efficient manipulation and analysis of genetic sequences in computational biology and genetics.
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Select the correct answer.
Why are primary sources important when studying historical events?
Answer:
what are the options? ?????
Sketch a diagram of how the protein crosses the membrane. Label the amino acids found at the membrane aqueous phase junction (usually a charged amino acid) including the linear number and the number of residues in the loop regions between the spanning regions
These molecules pass across membranes by the action of specific transmembrane proteins, which act as transporters.
In mammalian cells, secretory proteins are translocated across the Endoplasmic Reticulum (ER) membrane into the lumen co-translationally via the translocon complex. Misfolded proteins in the ER are transported back to the cytosol and degraded by the proteasome, a process termed ER-associated degradation (ERAD).
Amino acids like phenylalanine (phe), isoleucine (ile), leucine (leu) and alanine (ala) are commonly foundat the membrane aqueous phase junction.
These proteins provide structure and support for cells. On a larger scale, they also allow the body to move. These proteins bind and carry a small molecules within cells and throughout the body.
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Hi. Please answer these questions .It's really Urgent.
Main focus : Grasshopper
Question : Give a comprehensive note on the given topic.
1. Give a brief summary containing information about a Grasshopper . ( e.g it's scientific name , where its found , its color , it's kingdom, phylum, class order e.t.c.)
2. What are the Adaptive features of the subject.
3. Regions where it is mainly found.
4. Economic importance of the subject.
5.Any other information you think I might need.
1. A caelifera, or more commonly known as the grasshopper belongs in the animal kingdom. Grasshoppers are a leafy green and can be found in a variety of habitats. They can be found in lowland tropical forests or grasslands. Higher classification for the grasshopper would be Orthoptera. Grasshoppers are jumping insects that belong to the arthropod phylum.
Strong, long hind legs that help them jump. This adaptation helps them get away from harm and jump higher.
3. I said some in the first paragraph.
4. Important in grassland ecosystems and play a role in the nutrient cycling.
5. I don’t think there really is anything else.
\(\huge\textbf{Grasshopper}\)
_____________________________________TAXONOMY OF DIFFERENTIAL GRASSHOPPER:Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Orthoptera
Sub Order: Caelifera
Genus: Melanoplus
Specie: differentialis
Differential Grasshopper is one of the many types of grasshopper, thus the genus and specie name might differ from type to type.
_____________________________________\(\huge\textbf{Phylum Arthropoda}\)
Phylums are the groups and Phylum arthropoda is one of the 33 phylas of the Kingdom Animalia. Phylum Arthropoda has the largest phylum of the Animal Kingdom with variety of animals that include one million species. It has 5 classes.
_____________________________________CLASS INSECTA:This is the largest class of animal kingdom. It includes 90% of the arthropod species. Its study is called entomology. It includes all the insects which have 6 legs, their body is divided into head thorax and abdomen.
_____________________________________\(\large\textbf{Grasshopper}\)
Grasshopper have a long, cylindrical body which is bilaterally symmetrical. They are the insects with six jointed appendages(legs), its soft body is differentiated into head thorax and abdomen which is covered with exoskeleton. It is yellowish green in colour, their pigmentation darkens as they get older. They have 4 wings, The back wings are larger while the front wings are small. Their back legs(hind limbs) are large muscular and strong making legs well adapted for leaping. Grasshoppers eat all the green parts of the plant. A lot of grasshoppers can eat a lot of food and can cause serious problems for farmers by eating all of their crops. They are present everywhere mostly in Grassland region and absent in too cold regions.
They have compound eyes to see, antennae, palp, cerci and receptors to sense touch, Their ears(tympinal organs) are present in abdomen region, They have strong mendibles which help them to eat and they gasp food by front limbs. They make a hissing sound by rubbing their hind limbs with the abdomen region.
_____________________________________\(\huge\textbf{Features}\)
1) \(\large\textbf{Exoskeleton}\)
Exoskeleton is the outer covering which protects the animals. The whole body and appendages of grasshopper are covered with exoskeleton. It is water proof made of chitin, it is non living. As it is non living it cant grow, the grass hopper and other insects go through the process called Moulting or Ecdysis. Moulting is the mechanism by which as animal grows it sheds its exoskeleton exposing its soft body but it quickly forms a new one.
\(\large\textbf{2)Jointed Appendages}\)
Arthropoda are named because of the jointed appendages. They play a significant role. These appendages serve many functions which include swimming, walking, food capture, copulation and sensory perceptions.
\(\large\textbf{3) Metamorphosis}\)
Metamorphosis is a set of changes which transform larva into developed adult form. Metamorphosis is of two types, Complete and Incomplete Metamorphosis. Grasshoppers go through incomplete metamorphosis. Incomplete Metamorphosis is the tiny immature adult like creature called nymph comes out of egg and grows direct into an adult skipping the larvae and pupa form.
\(\large\textbf{4) Legs and Wings}\)
The Grasshopper have very strong hind limbs and wings. They help in locomotion and also help in catching the prey. The arthropods in the class insecta which have wings are called Pterygota and those which do not have wings are called Apterygota.
\(\large\textbf{5) Sensory Organs}\)
They have very well developed sensory and visionary organs which help them to catch the prey. Their mouth parts consist of Maxilla, Mandibles Hypopharynx, Labrum and labium.
_____________________________________\(\huge\textbf{Economic Importance}\)Grasshopper can be used as source of food in some countries, they are roasted to provide some delicacy In a food chain they can be used to feed other animals in an ecosystem like poultry They are crop pests(animals that injure or kill cultivated plants) in agriculture farm. They can assist in transmitting crop diseases from one plant to another_____________________________________Best Regards,'Borz'NEED ANSWER ASAP
Eukaryotic cells, when compared to prokaryotic cells, tend to be which of the following? A. smaller, but specialized B. larger and more complex C. larger, but simpler D. smaller and simpler
Answer:
Option B) larger , but specialized
Eukaryotic cells have a specific nucleus and has organelles for energy producing(mithocondria) has lysosomes and other organelles. It is larger because it has specialized organelles to carry out various specific functions which requires more surface area.
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What 2 processes change sedimentary rock into igneous rock? (has to become magma first) _________ & _____________.
Answer:
High Temperatures and Pressures; Cooling and Hardening When Sedimentary rocks are heated with tremendous heat and pressure, it will melt and be back again to magma. After some time it will cool and harden and will become Igneous rocks.
How does the structure of cells relate to different functions and specialization
Answer: They can transport molecules, metabolize nutrients, and reproduce within this one cell.
Explanation: Multicellular organisms need many different types of cells to carry out the same life processes. Each of these special types of cells has a different structure that helps it perform a specific function.
Experiment #1: Aseptic Techniques and Use of Media Incubation and Observations Incubate all cultures. After approximately 48 hours of incubation, examine your cultures. Do no remove the caps of your tubes or the lid of the Petri dish during any observation, because this may result in contamination. Take pictures of your cultures. For photographs of microbial cultures, avoid use of the flash, which will simply be reflected off the glass or plastic culture container. You may need to experiment with lighting conditions and camera angles to get the best pictures in your workspace. Observe and photograph the cultures again after approximately 72 hours of incubation. Your inoculated media should exhibit increasing amounts of microbial growth throughout the incubation period. Record name of bacterial species used in this investigation,
1. 2.
3. 4.
Photo 1 Insert the photo(s) of your cultures taken after 48 hours of incubation.
Aseptic technique is the term used to describe the methods utilized to prevent contamination by microorganisms in microbiological experiments.
Experiment #1: Aseptic Techniques and Use of Media Incubation and ObservationsAfter approximately 48 hours of incubation, examine your cultures. Do no remove the caps of your tubes or the lid of the Petri dish during any observation, because this may result in contamination.
Take pictures of your cultures. For photographs of microbial cultures, avoid use of the flash, which will simply be reflected off the glass or plastic culture container. You may need to experiment with lighting conditions and camera angles to get the best pictures in your workspace. Observe and photograph the cultures again after approximately 72 hours of incubation.
Your inoculated media should exhibit increasing amounts of microbial growth throughout the incubation period. The experiment aims to use aseptic techniques and media incubation to observe microbial growth and characteristics.
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what structural feature do hemoglobin, cytochrome c, and chlorophyll have in common?
Hemoglobin, cytochrome c, and chlorophyll are all proteins with distinct biological functions. Despite their different functions, they share a common structural feature: the presence of a heme group.
A heme group is a complex organic molecule that contains a central iron atom that can reversibly bind to oxygen or other molecules. The heme group is responsible for the red color of blood and gives hemoglobin its ability to transport oxygen throughout the body. In cytochrome c, the heme group plays a critical role in the electron transport chain, which is responsible for generating energy in cells. In chlorophyll, the heme group is responsible for capturing light energy during photosynthesis.
The presence of a heme group in these proteins highlights the versatility and importance of this structural feature in biological systems. Despite the different roles these proteins play in organisms, the heme group is critical for their function and highlights the importance of understanding the role of structural features in determining protein function.
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Evaluate Clara's practices for the prevention of parasite infestation in the following scenario.
Last year, Clara lost thousands of dollars when her sheep herd was infested with tapeworms. She has
always been diligent about keeping the pens clean and ensuring a proper diet. She has also always given
her sheep plenty of freedom by allowing them to wander day and night, and she even protects them from
the hot weather by putting them out to graze in the cooler evening hours. She hopes that this year the
herd will be more fortunate.
I believe Clara's actions will lessen the parasite infestation. I also believe she might arrange for routine veterinary examinations of the sheep to make sure they are free of any parasites that might infect the entire flock.
Because producers can see the visibly ejected worms whereas they cannot see stomach worms, only their symptoms or eggs, tapeworms frequently cause greater anxiety among sheep and goat farmers than stomach worms (nematodes) (in the feces).
People and animals with spines that have intestines are home to tapeworms, which are flat, ribbon-shaped worms. One of three classes of parasitic worms, they are long, segmented worms from the class Cestoda.
The move-and-dose strategy won't frequently work because many sheep pastures can't produce hay. To control parasites in this situation, prophylactic deworming treatments must be given throughout the season.
Clara's activities will therefore reduce the parasite invasion, I can infer. To ensure that the sheep are free of any parasites that could infect the entire flock, she might arrange for routine veterinarian checks of the animals.
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what is the general purpose of the sensory nervous system and the specific purpose of the auditory system?
The general purpose of the sensory nervous system is to receive information from the environment and relay it to the brain for processing and interpretation. The specific purpose of the auditory system is to detect and process sound waves, allowing us to hear and perceive sounds in our surroundings.
The sensory nervous system's general purpose is to gather information from the environment and send it to the brain, while the auditory system specifically focuses on detecting and processing sound waves for hearing and perceiving sounds.
The auditory system is composed of various structures, including the outer ear, middle ear, inner ear, and auditory pathways that connect to the brain. Sound waves enter the outer ear and travel down the ear canal, causing the eardrum to vibrate.
These vibrations are transmitted through the middle ear to the cochlea, a fluid-filled structure in the inner ear that contains tiny hair cells that convert the vibrations into electrical signals. These signals are then sent through the auditory nerve to the brainstem and auditory cortex, where they are processed and interpreted as sound.
The complex mechanisms of the auditory system allow us to distinguish between different types of sounds, such as speech, music, and environmental noises, and to locate the source of sounds in our environment.
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