Because asexual reproduction is much more efficient in many ways, the question of why sexual reproduction evolved as a reproductive mechanism is of considerable interest to biologists. Given that the vast number of multicellular organisms can reproduce sexually, what conclusion can be drawn from its existence

answer; i believe that the correct answer is ; males are hemizygous for the x chromosome;

your body is trying to warm itself up. or more precisely, sensors in your skin send messages to your brain to generate heat to your body.

energy and particles

photosynthesis makes the glucose that is used in cellular respiration to make atp. the glucose is then turned back into carbon dioxide, which is used in photosynthesis. while water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.