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oksano4ka [1.4K]
3 years ago
12

Need help with this please

Biology
1 answer:
aleksley [76]3 years ago
6 0
Isotopes are elements with same atomic number Z= number of protons but different mass number A, where A= Z+N, N= number of neutrons which is variable. As for radioisotopes, I’ve never heard of them before !
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Cholesterol is a ________, which ________. steroid; is a component of eukaryotic membranes steroid; is the basis for many animal
olasank [31]

Answer:

Steroid; is a component of eukaryotic membranes.

Explanation:

Cholesterol is one of the most important chemical synthesized by all the animals. The chemical formula of cholesterol is C27H46O. The cholesterol in solid state was first given by C27H46O.

Cholesterol is present in the plasma membrane and maintain its membrane fluidity. Cholesterol is an important structure of the plasma membrane and acts as a pre cursor for various hormone. The cholesterol is a type of sterol and a lipid.

Thus, the correct answer is option (1).

6 0
3 years ago
Cual es el proceso molecular de las neuronas?
Rasek [7]

Answer:

un tipo de célula altamente especializada cuya principal característica es su incapacidad para reproducirse. Esto significa que el ser humano nace con una cantidad determinada de neuronas, las que, si bien no pueden duplicarse, han demostrado ser unidades muy plásticas y capaces de generar reacciones en situaciones bastante desfavorables.

Explanation:

5 0
2 years ago
suppose a person has a small intestine that has fewer villi than normal.would the person most likely be overweight or underweigh
LenKa [72]
<span>The person who has a small intestine that has fewer villi than normal would most likely be u</span>nderweight. The villi of the small intestines are the small structures that do the absorbing of the nutrients. Having less of these structures, less nutrients are absorbed and the person is more likely to be malnourished.
3 0
3 years ago
To identify people by dna, is it better to make copies of genes or non-coding segments? Explain.
castortr0y [4]

To identify people by DNA it is better to make copies of non-coding segments because they exhibit more variation than genes.

  • The polymorphic sequences of non-coding DNA vary between individuals in humans.
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  • It is possible to create a person's genetic fingerprint by counting the amount of repeats, which varies between individuals.
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  • There are distinctive repeating patterns found inside this area of DNA that can be utilized to distinguish one person from another.
  • Short tandem repeats (STRs) are a type of pattern that can be measured to determine a person's DNA profile.

learn more about DNA here: brainly.com/question/21265857

#SPJ4

4 0
1 year ago
What are the 3 theories for the extinction of the dinosaurs?
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One will be due to climatic change or it might be coz of evolution
4 0
3 years ago
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