Answer:
1) I don't know what option "B" is but with whats given the answer is D
2) For this one I can't see what option "D" is but with whats given the answer is C
3) I can't see what option "B" is but with whats given the answer is D
4) I can't see option "D" but out of those the answer is B
The answer is C as isotopes are elements with same proton but different number of neutrons
Passive transport vs active transport sounds like what it is. In passive transport, there is no energy needed to get the molecules across the cell membrane, whereas in active transport, energy is expended getting the molecules across the membrane. Basically in active transport the ATP in your cells gives one of it’s phosphates to the transport proteins in your cell membrane and it lets select molecules in. These molecules are moving through a concentration gradient during active transport(with the help of ATP), from an area of low concentration to an area of high concentration.
<span>What is an ecological system called that consist of all of it to biotic and abiotic factors?
</span><span>B. Ecosystem
I hope helped (^-^)
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Answer:
The scienctist is pretty much studying the elements of the human body.
Explanation: