Which term describes the difference in the concentrations of a substance across a cells membrane

Most crimes involve some evidence relating to the human body; for that reason, what related science is frequently used in forensic investigations? a)psychiatry b)physics c)botany d)biology

Me what would happen if a plant could carry out photosynthesis, but not respiration? question 1 options: it would have no food. it would have too much water. it would be unable to capture the energy in sunlight. it could make food but not break it down for energy.

Aspecies of butterfly has alleles for wing color that are either blue or orange. when a blue butterfly and an orange butterfly mate, their offspring have wings that are both blue and orange. explain the process through which wing color is expressed.