In the image above, what lettered section represents 2 chromosomes, each with 1 chromatid? A, B, C or D

What element is able to combine with itself and hydrogen to form large molecules ?

When a cell is in a solution that has the same concentration of water and solutes as its cytoplasm, the cell is said to be in a(n) solution. a. isotonic b. hypotonic c. hypertonic b. facilitated

How do all types of diffusion/passive transport actually ‘work’ without using even the smallest amount of cellular energy?