<span>They are not visible because the chromatin coils up,shortens,and thickens.</span>
White blood cell is the answer
I and III.
Chargaff's law and Rosalind Franklin's discoveries
The process of active transport requires the most direct use of ATP.
I hope this helps.
Answer:
permeability
Explanation:
dictionary definition: the state/quality of a material or membrane that causes it to allow liquids or gases to pass through it
in biology we use this term to describe the cell membrane, it is "semi-permeable" because it allows certain gasses and molecules to pass through
