Answer:
released by the presynaptic membrane
Explanation:
10) In a population of dogs, curly hair is dominant over straight hair. If two parents are heterozygous for this trait, what is the probability that any of their offspring will have straight hair
The probability would be 1/4 or 25%
Monohybrid crossingAssuming that curly hair is represented by A and straight hair by a.
Crossing two heterozygous parents:
Aa x Aa
AA Aa Aa aa
Offspring:
AA - curly hair
Aa - curly hair
aa - straight hair
Probability of curly hair = 3/4
Probability of straight hair = 1/4
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The main cellular structure that regulates the movement of materials into and out of the cell is the
6. It was suspected that two babies had been exchanged in a hospital. Mr. and Mrs. Jones received baby #1 and Mr.
and Mrs. Simon received baby #2. Blood typing tests on the parents and the babies showed the following: Mr.
Jones: Type A Mr. Simon: Type AB Mrs. Jones: Type O Mrs. Simons: Type O Baby #1: Type A Baby #2 Type O Were
the babies switched? How do you know whether they were or they weren't?
Baby 2 belongs to the Jones family and baby 1 belongs to the Simons family, because baby 1, having type O, cannot have a type AB father.
Genetic determination of ABO blood typesThe presence or absence of agglugens in people's blood is determined by the IA, IB or i genes. Genes IA and IB are dominant over gene i. The IA gene, for example, determines the production of an enzyme that synthesizes agglutinogen A.
Therefore, if one person has the IA IA genotype and another person has the IA i genotype, the red blood cells of both have agglutinogen A, that is, they have blood type A. Something similar happens in the case of people with blood type B. But people with blood type AB have gene IA IB, because there is no dominance between these two genes.
With this information, we can conclude that there really was an exchange of babies.
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In the heart, an action potential originates in the __________.
Answer:
sinoatrial (SA) node
What occurs when cool air moves from the beach toward the ocean during the night?
Answer:
As the warm air over the land is rising, the cooler air over the ocean is flowing over the land surface to replace the rising warm air. This is the sea breeze.
Which organism has the least differences in the number of amino acids in cytochrome c compared to
humans? Which organism has the greatest difference?
Answer:
Using the number of amino acid differences, it would appear that the two birds are more closely related (had a common ancestor very recently), while the two fungi would have to trace their common ancestry much farther back in time (much more distantly related).
In which stage of the cell cycle does the cell duplicate its dna?.
A scientist is performing an investigation using biochemistry. She compares the protein sequence of an unknown species to the protein sequences of four known species. Her data is shown in the table.
The scientist claims that all living organisms are related by way of common descent. The comparison of which two species BEST supports her claim?
species I and species III
species II and species IV
the unknown species and species IV
the unknown species and species II
Based on the similarity in protein sequence, the most closely related species are unknown species and species IV.
Which species are related by way of common descent?From the data provided:
Unknown species: ACT GCA CCCSpecies I: ACA GCA CCG Species II: ACT GGT GGASpecies III: ACA GCA GGGSpecies IV: ACT GCA CCGBased on the similarity in protein sequence, the most closely related species are unknown species amd species IV.
Therefore, the most closely related species are unknown species and species IV.
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Answer:
the unknown species and species IV
Explanation:
I took the practice test
why are breathing structures supposed to be thin
Answer:
A respiratory surface is covered with thin, moist epithelial cells that allow oxygen and carbon dioxide to exchange. Those gases can only cross cell membranes when they are dissolved in water or an aqueous solution, thus respiratory surfaces must be moist.
Cholesterol is an important component of the cell membrane because *
A-It makes the membrane less fluid, stabilizing the membrane
B-It aids in diffusion
C-It aids in cell recognition
D-It transports large, polar molecules
Answer:
Option A... Because cholesterol prevents membrane from freezing and maintain membrane fluidity
After you’ve removed a loopful of broth culture from the culture tube, what’s your next step in preparing a smear?.
Given what we know, after you’ve removed a loopful of broth culture from the culture tube you should immediately apply a flame to the open end of the test tube.
Why would this be the next step?Once you have removed the loopful of broth culture from the tube, you should apply a flame to the end of the tube, this is of vital importance. The reason for this is to deny any other contaminants from entering or exiting the culture sample.
Therefore, we can confirm that after you’ve removed a loopful of broth culture from the culture tube you should immediately apply a flame to the open end of the test tube.
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True or false siblings look similar because they each have some traits of their parent
True or false siblings always have the same hair color
True or false siblings have identical DNA
Answer:
False, False, False
Explanation:
Falses all the way around!!!
Compare visible light to non-visible light, and radio waves to non-visible light.
Answer:
visible light is like a flashlight or a sun light and non invisible light is like infared light and rc caontroller remote
Explanation:
Which statement best explains why multicellular organisms have specialized cells?
O They must undergo cellular respiration to get energy needed to move and grow.
O They must replace dead cells with new ones.
O They must undergo photosynthesis to obtain energy needed for cellular respiration.
O They are made of cells that form tissues and organs that perform specialized functions.
Answer:
I think your answer would be D.
Explanation:
The tissues are not specialized. The organelles do not cooperate in order to perform the functions of living things. The majority of its cells do not come into contact with the outside world.
Multicellular organisms means the the organisms composed of more than one cells. These cells will differentiate to perform specialized functions.
Why multicellular organisms have specialized cells?According to level of organization, cell combine to form tissue, tissue group together to form organs, organs combine to form organ system and organ system work in coordination to form organism.
In multicellular organisms, each group of cells perform specialized functions.
Thus, option D is correct, i.e., they are made of cells that form tissues and organs that perform specialized function.
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state the processes of nitrogen,carbon and water cycle
Answer:
The three main cycles of an ecosystem are the water cycle, the carbon cycle and the nitrogen cycle. These three cycles working in balance are responsible for carrying away waste materials and replenishing the ecosystem with the nutrients necessary to sustain life.
Explanation:
None needed.
Where are proteins produced other than on ribosomes free in the cytosol or ribosomes attached to the endoplasmic reticulum?.
Answer:
Mitochondria
Explanation:
Protein synthesis can also occur in the mitochondria of the cell since mitochondria contains its own ribosomes and DNA (mDNA)
Help with the image please? Appreciate it!
Answer:
the first one is catalytic converter
the second is building and maintaining a safe reactor is very inexpensive
Explanation:
I resarched my answers and they were correct
Which reagent is used to detect the presence of simple sugars?.
We have that the the Benedict's reagent is used to detect the presence of simple sugars
MoleculesGenerally the test for sugar is detected by the turn from turquoise to yellow or orange when i contact with carbohydrates
This is the Benedict's reagent
Therefore
The Benedict's reagent is used to detect the presence of simple sugars
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Explain the methods of water purification.
Hurry up!!
Answer:
There are several methods used in the water purification process, which include: (1) physical processes, such as filtration, sedimentation, or distillation; (2) biological processes, such as sand filters, active carbon; (3) chemical processes, such as flocculation, chlorination, the use of ultraviolet light. (Hope this helps:) )
Explanation:
what is the main idea of Storing Energy
Answer:
Energy storage is the capture of energy produced at one time for use at a later time to reduce imbalances between energy demand and energy production.
The tissue type that covers surfaces and lines the inside of organs and body cavities is.
Variation in carbon chains is an important source of molecular complexity. How can carbon skeletons vary?.
Answer:Covalent bonds link carbon atoms together in long chains that form the skeletal framework for organic molecules. These carbon skeletons may vary in: ... Compounds with the same molecular formula but with different structures and hence different properties. Isomers are a source of variation among organic molecules.
Explanation:
The carbon skeletons may vary in:
lengthShapeNumber and location of double bondWhat is carbon skeletons?The term carbon skeleton is utilized to depict the example where the carbon iotas are reinforced together in a particle, ignoring molecules of different components and contrasts among single and numerous bonds.
Most substance responses of natural mixtures don't break connections between carbon iotas and thusly leave the carbon skeleton unaltered. In numerous isoprenoids, rings of three, four, or five carbon iotas structure part of the atomic design.
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Which statement describes a deciduous tree?
trees that drop their leaves year-round
trees that make cones
trees that have thin, waxy needles to retain water
trees that drop their leaves in colder seasons in order to conserve water
Answer:
trees that drop their leaves in colder seasons in order to conserve water
Explanation:
Which of the following best describes the purpose of a Carbon Tax?
a
Increasing the tax on something that creates carbon, results in a lower consumption of that product, thus mitigating climate change.
b
Increases the cost of living, which in turn mitigates climate change.
c
Forces people to pay the government more money due to buying goods and services.
d
Anger the public.
Answer:
A, Increasing the tax on something that creates carbon, results in a lower consumption of that product, thus mitigating climate change.
Explanation:
Proteins are polymers made up of how many different amino acids?.
Answer:
20 Amino Acids.
Explanation:
In screech owls, red feathers are dominant over gray feathers. If two heterozygous red-feathered owls are mated, what percentage of their offspring would be expected to have red feathers
In screech owls, if two heterozygous red-feathered owls are mated, then about 75% of the offspring produced will be having red feathers.
What is a genetic cross?A genetic cross can be defined as the deliberate breeding of two different individuals or species which results in the formation of offspring that carry part of the genetic material of each of the parent. The parent organisms must be genetically compatible to each other and may also be from different varieties or the closely related species.
In screech owls, red feathers are dominant over gray feathers. This means that, red feather allele is dominant over gray and will mask its effect.
Therefore, about 75% of the offspring produced from a cross between two heterozygous red feathers owls would be expected to have red feathers.
The punnett square for this cross is attached with the answer.
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How does antibiotics stop bacterial cell wall formation?.
Answer: Glycopeptide antibiotics inhibit the synthesis of cell walls in susceptible microbes by inhibiting peptidoglycan synthesis.
Explanation:
What is parasitology?
Answer:
its like the study of parasitic orgamisms
Explanation:
Answer:
the branch of biology or medicine concerned with the study of parasitic organisms.
MARKING BRAINLIEST!!!
1. During photosynthesis, what happens to the energy in sunlight?
2. Sun energy is converted into ______ energy called ______.
Explain why an organism with a similar volume but more spherical in shape would not be as efficient as a flatworm at exchanging substances with their environment.
Answer:
As the ratio gets smaller, it takes longer for items to diffuse.
Explanation:
When the cell increases in size, the volume increases faster than the surface area, because volume is cubed where surface area is squared.
When there is more volume and less surface area, diffusion takes longer and is less effective. This is because there is a greater area that needs to receive the substance being diffused, but less area for that substance to actually enter the cell.
this is actually why cells divide. When they become too large and it takes too long for them to transport materials across the cell, they lose efficiency and divide in half to raise the surface area to volume ratio.
