Alipid bilayer allows certain molecules to pass through and blocks other molecules. which structure is most often protected by a lipid bilayer?

If the frequency of the p allele is .63 in the population then what is the frequency of the q allele?

What evidence supports the law of conservation of energy? a) mechanical energy is converted to chemical energy during photosynthesis. b) oxygen is made from the breakdown of carbon dioxide during photosynthesis. c)energy is absorbed by chlorophyll and becomes chemical energy during photosynthesis. d)the sun gives off light energy that is absorbed by plants.

Temperatures in ponds and lakes vary by season. select the best answer from the choices provided t f