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Lunna [17]
3 years ago
11

What is needed for evolution to take place?

Biology
1 answer:
Svetlanka [38]3 years ago
3 0

Answer:

genetic variation

Explanation:

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PROJECT: HOMEOSTASIS
Semenov [28]
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The normal blood glucose level (tested while fasting) for non-diabetics, should be between 3.9 and 5.5 mmol/L (70 to 100 mg/dL). ...
 Blood sugar levels for those without diabetes and who are not fasting should be below 6.9 mmol/L (125 mg/dL).
There are lots of different hormones in the human body that serve lots of different functions, but some are used to maintain homeostasis of various physiological parameters, like blood glucose levels. Blood glucose levels are regulated by two opposing hormones: insulin and glucagon.
3 0
3 years ago
9. What impact could a MUTATION in this protein have on future generations of Antarctic fish?
OLga [1]
Well a mutation is like a change in the DNA and so if there was a mutation in the antártica fish, something in their genes would change. If that mutation has a positive effect on it, then that mutation would be passed down to the generations of fish, helping that fish with its survival or something
4 0
3 years ago
Why is a theory called a theory and not a fact?
Black_prince [1.1K]
Many theories can never be proven. 
Here are a few examples:

-- The moon orbits the Earth.
-- Gravity pulls all masses toward each other.
-- The Earth orbits the sun.
-- Everything is made of atoms and molecules.
-- Atoms are made of protons, neutrons, and electrons.
-- Electrons moving through a wire make electric current.
-- The center of the Earth is molten iron and nickel.
-- The source of the sun's energy is nuclear fusion in its core.
-- Almost all galaxies are moving away from us.
-- The universe is expanding.

None of these statements can be proven.  That's why they're not called
Facts or Laws. 

It also tells you that some pretty powerful stuff has been done with concepts
that can't be proven.  If you want to make an idea look foolish, that doesn't
happen when you say "it's only a theory".
4 0
3 years ago
Read 2 more answers
Which structure secretes hormones directly into the bloodstream without using a duct
Bumek [7]
I belive it is the frontal lobe
6 0
3 years ago
Read 2 more answers
What is the purpose of being best "fit" for a particular environment
attashe74 [19]

Answer:

The adequacy of this fit between a person and the environment can affect the person's motivation, behavior, and overall mental and physical health163; that is, if the fit is optimal, the individual's functioning may be facilitated; if it is unsuitable, the individual may experience maladaptation.

Explanation:

5 0
2 years ago
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