How many germ layers do cnidarians have and name them

A blank is a group of cells that have the same function?

What two things must occur for an energy crisis to occur in society? Decrease in supply, increase in price Decrease in supply, decrease in price

What glands secretes oil into the hair follicle?

How does thrombospondin-1 (Tsp-1) signaling selectively inhibit the proliferation of immature endothelial cells without affecting mature endothelial cells participating in the formation of blood capillaries?

1. An animal is found that is asymmetrical, has no tissues or organs, and is full of holes. This animal probably belongs in which phylum? A. Porifera C. Platyhelminthes B. Cnidaria D. Nematoda

Which statements about a child with brown eyes must be true? Choose more than one answer

I observe that squirrels that live in the southeastern United States are much thinner than squirrels that live in the northeastern part of the country.

66) homologous chromosomes move toward opposite poles of a dividing cell during; a) mitosis.; b) meiosis i.; c) meiosis ii.; d) fertilization.; e) binary fission.

What is true about gradualism with respect to punctuated equilibrium

Which statement is true? A. Prokaryotic cells do not have a membrane. B. Eukaryotic cells have multiple membranes. C. Eukaryotic cells have one membrane. D. Prokaryotic cells have multiple membranes.