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Snowcat [4.5K]
3 years ago
10

Of the following, which is best supported to suggest where life is believed to have originated on Earth? Select one: a. RNA worl

d hypothesis b. Primordial soup origin hypothesis c. Subsurface origin hypothesis d. Theory of natural selection
Biology
1 answer:
Kisachek [45]3 years ago
3 0

Answer: b. Primordial soup origin hypothesis

Explanation:

The primordial soup hypothesis is the basis of the origin of life on earth. Life originated in the ocean water as a result of the combination of chemicals from the atmosphere and energy from the sun to make up the amino acids. The amino acids are the building blocks of proteins. The protein was the basis of the development of life forms and their evolution on planet earth. The chemical evolution supposed to occur at least 3.8 billion years ago.

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Difference of positive and negative feedback
goldfiish [28.3K]

Answer:

The difference is:

a) Positive feedback increases a change while negative feedback reduces a change.

b) Positive feedback occurs specific situations while negative feedback occurs in the body.

c) Positive feedback break down the homeostasis while negative feedback maintain the conditions of homeostasis.

d) Positive feedback has less frequent mechanism while negative feedback has more frequent mechanism.

e) Positive feedback enhances change while negative feedback resists change.

f) Positive feedback has a wider range while negative feedback has a narrow range.  

Explanation:

Hope they help.

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4 years ago
Some viruses cause infected cells to _____, or rupture, as when hiv infects and reproduces within t cells.
stellarik [79]
Some viruses cause infected cells to <u>lyse. </u> Lysis is the dissolving of the cell by factors like viral, enzymic, or osmosis. Lysis in medical term also means a presence of symptoms of complicated or acute diseases. Example of this disease is the tumor lysis syndrome.
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3 years ago
Which ranks the terms in order of increasing size and the number of space objects contained within?
Snowcat [4.5K]
<h3><u>Answer;</u></h3>

A) Size: universe -> galaxy -> solar system  

Number of objects: universe ->galaxy -> solar system

<h3><u>Explanation;</u></h3>
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  • <em><u>Similarly in terms of the number of objects, objects in the universe are more compared to those of the galaxy and the solar system.</u></em>
  • In a nut shell, universe refers to everything that exists, galaxies are giant structures that are made up of billion of stars. The universe is made up of billions of galaxies. A solar system is a region of space where the gravitational force of a star influences all the other objects.
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4 years ago
What do ribosomes do in animal cells
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Answer:

Knowing others is intelligence; knowing yourself is true wisdom. mastering others is strength; mastering yourself is true power. if you realize that you have enough, you are truly rich, "And the cause of not following your heart, is in spending the rest of your life wishing you had."

7 0
3 years ago
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enyata [817]

Answer: Lucy

Explanation:

I’m a physical science major

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3 years ago
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