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3 years ago

(Giving brainliest!)

Biology

1 answer:

Rzqust [24]3 years ago

4 0

Answer:

Asteroids or planetoids are small solids in planetary systems. They usually orbit the parent star in their own orbit or as natural satellites (moons) of larger planets.

A comet is a celestial body that is in an elliptical orbit around the Sun. They come from the farthest and coldest areas of the solar system.

Explanation:

The moon is the only natural satellite of the Earth and at the same time the closest celestial body.

It is the brightest celestial body in the night sky, not because it consists of incandescent gases like the sun, but because it reflects sunlight.

A planet is a celestial body that moves directly in an elliptical orbit around a star, not like a natural satellite, which orbits a star while circling around another body.

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One hypothesis that proposes to explain senescence notes that cells that divide throughout the life course have shortened dna se

mylen [45]

Answer:

telomere hypothesis

Explanation:

Telomere hypothesis -

Telomere -

It is the area where there are repetitive nucleotide sequence at the very end of the chromosome that does not allow the ends from fusing with the other chromosomes and even from deteriorating .

according to the hypothesis , the cells have shorter DNA sequence which divide throughout the life .

hence , the correct term for the given statement is - telomere hypothesis .

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3 years ago

How would you describe the population growth of a typical developed country?

never [62]

I believe the answer is D. High birth rates and low death rates leading to a expanding population. i am not positive but i am pretty sure

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3 years ago

The A159E mutation causes an A amino acid to be replaced with an E amino acid (their structures are shown here). What type of mu

valentinak56 [21]

Answer:

Substitution

Explanation:

Mutations can simply be defined as change in the structure of a gene. Mutation can be of different types. These include, but not limited to:

Insertion: This involves the insertion of extra base pairs into a DNA
Deletion: Loss of DNA section
Substitution: When a nucleotide base gets substituted with another base.

Substitution of a base can lead to coding of different amino acid and hence, protein. It can also lead to coding of the same amino acid, otherwise known as silent mutation. Base substitution can also lead to the amino-acid-coding codon becoming a stop codon, leading to an incomplete protein.

The correct answer is substitution.

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3 years ago

Many scientists use a specific type of mouse cell to coat the surface of petri dishes with extracellular matrix proteins. This c

djverab [1.8K]

Answer:

Murine fibroblasts

Explanation:

Fibroblasts are the most common cellular type in the connective tissue of mammals and immortal murine fibroblasts are often used in molecular biology to study different characteristics such as, for example, to understand the tissue repair processes

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3 years ago

What forms Angolas western border?

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SAO TOME. IS THE ANSWER TO YOUR QUESTION.

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