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Veseljchak [2.6K]
3 years ago
7

The plasma membrane exhibits selective permeability. this means that __________.

Biology
1 answer:
antoniya [11.8K]3 years ago
7 0
This means that it only allows for select materials to be able to move across it and not all molecules and other substances floating in the external environment. The proteins and the phospholipid Bilayer help to contribute the selectivity of the membrane.
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The most significant characteristic of sexual reproduction is _____.
Rainbow [258]
<span>The most significant characteristic of sexual reproduction is the fact that the offspring's traits/ characteristics are not identical to the parents' traits. So, there is a variety of looks and traits passed down.


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3 years ago
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Which part of your brain is essential for receiving information that you are moving your legs?
stealth61 [152]

Motor coretex is essential for receiving information that you are moving your legs.

<h3>What is motor cortex?</h3>
  • The motor cortex's main job is to provide signals that control how the body moves. It is anterior to the central sulcus and a portion of the frontal lobe.
  • The primary motor cortex, premotor cortex, and supplementary motor area make up this region.
  • The motor cortex generates signals that are particular to movements and sends them to the muscles via spinal cord circuits and motoneurons to regulate motor behavior.
  • For the execution of movements to be precise, coordinated muscle activation patterns are required.

Learn more about the structure of brain with the help of the given link:

brainly.com/question/17141128

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8 0
1 year ago
The Hershey and Chase experiments involved the preparation of two different types of radioactively labeled phage. Which of the f
Vlad1618 [11]

Answer:

B. It was necessary that each of the two phage components, DNA and protein, be identifiable upon recovery at the end of the experiment.

Explanation:

Hershey and Martha Chase used radiolabeled the DNA of some of the bacteriophage cells with phosphorus (32P). They radiolabeled the sulfur (35S) of the coat protein in the second batch of the phage cells. They infected some of the bacterial cells with phage having radiolabeled DNA while the other <em>E. coli</em> cells were infected with the phage carrying radiolabeled coat protein. This allowed the clear identification of the radiolabelled molecule (DNA or protein) present in the host cell.

They observed that the <em>E. coli </em>cells infected with phage having radiolabeled DNA exhibited the radioactivity while the other batch of the host cell did not show it.  

6 0
3 years ago
A population of white-tailed deer inhabits a certain patch of forest in michigan. Which group of alleles can be considered the g
emmainna [20.7K]

Answer:

the dominant alleles of white-tailed deer in this population only!

Explanation:A group of individuals of the same species that interbreed with each other is known as a population. The study of change in genetics is called population genetics which includes genes and alleles.  

Complete set of genes and their alleles that are present in a population is called gene pool. Gene pool includes both dominant and recessive alleles of every gene present in a population that can be transmitted in the next generation.

Population with high genetic pool has high diversity which increases the fitness of a population. As gene pool include all the genes and its allele in a population, therefore, the correct answer is all alleles of the white-tailed deer in this population only.  

5 0
2 years ago
6) The scientific method
Rasek [7]

Answer:

Can be used for simple experiments at home or in the classroom

7 0
3 years ago
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