Endothermic reactions are reactions where energy usually in the form of heat has to be added in order to make the reaction take place

A) true

B) false

The amoeba has organs. The amoeba cannot conduct respiration. The amoeba contains only one cell. The amoeba can produce its own food.

Glycogen is an example of what biomolecule

A sense of belonging is a characteristic of which need level? a. social b. safety c. esteem d. physiological e. self-actualization

What is the largest available source of fresh water for drinking in the hydrosphere?

What modern process is thought to be similar to the way crust formed before plate tectonics began? The principles of convection currents. The formation of the Hawaiian Islands. The formation of the Isua greenstone. The principles of accretion.

What need to be recognized by the t cells on the antigen presenting cells before becoming fully activated?

In humans, what normally results in the male sexual phenotype?

Does mitosis occur in maple trees?

Name 5 things that are controlled by your genes.

Populations change naturally over time. Which mechanism is a method of artifical selection rather than natural selection? A) genetic drift B) natural selection C) selective breeding D) geographic isolation