The higher the value of coefficient of friction, the _ the resistance to sliding

the answer to your question is sperm

i would go with b

cytokinesis occurs after telophase so that eliminates d

and the entire reason for cytokinesis is for cellular reproduction

the solute can move "downhill," from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. this process is called passive transport or facilitated diffusion, and does not require energy.

instead of copying and pasting things off of tests or work done on computer which im sure you did, try and read over the question carefully