Cells sometimes use passive transport to move molecules across their membranes. The rate at which a cell engages in passive transport is determined by A the number of vacuoles that the cell contains.
B the amount of energy that the cell generates.
С the composition of the cell membrane.
D the size of the cell's chloroplasts.

Fossils can only be formed when? if mud, silt or tar is in the area to preserve the fossil ierosion does not occur and allows the fossil to form oxygen and microorganisms cannot decay the bones the area is dry and does not contain mud or silt

What best describes lactic acid fermentation?

Which part of the neuron below is indicated by the arrow, and what is its function? hormones send chemical signals throughout the body to regulate other body processes. hormones are chemical signals that are sent throughout the body to regulate other body processes. hormones send electrical signals throughout the body to regulate other body processes. hormones are electrical signals that are sent throughout the body to regulate other body processes.