19. Which statement is NOT true about the molecules (B) that are embedded in the layers of part A? a. They strengthen the cell membrane
b. They contribute in faciliated diffusion
c. They detect signal molecules and perform an action in response
d. They are carbohydrates

Ineed the answer asap. in order to be considered alive, an organism must simultaneously possess the characteristics of homeostasis, heredity, cells, reproduction, and

Some birds look for food near cattle and other livestock. the movement of the cattle churns up the ground, making insects available to the birds. the cattle appear to be unaffected by the presence of the birds. what kind of relationship exists between the birds and the cattle? o a. parasitism o b. commensalism o c. predation o d. mutualism

Drag each label to the correct location on the chart. match the function to the type of tissue