<span>A key difference between active transport and diffusion is that active transport needs energy</span>
Answer: 4
Explanation:
It is composed of a cell, but does not have
tissues.
Answer:
A.
Explanation:
The correct sequencing of DNA nucleotides to match A, T, T, G, C is T, A, A, C, G because the nucleotide matches are: Adenine-Thymine, and Guanine-Cytosine. This works both ways, A-T or T-A, and G-C or C-G. The correct sequence therefore is A.
Quick Answer. Collagen is the protein that all animals have in common, even single-celled animals and creatures such as sponges that lack differentiated bodies. Collagen is a cable-like protein that can calcify into bone, shell or other hard structures.
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MARK BRAINLIEST PLZ!!!!!!!!
I think it's number 3 .......
