What elements are in the most common substance in the human body? a. carbon and nitrogen b. hydrogen and oxygen c. oxygen and phosphorus d. calcium and nitrogen

Humans take in the energy they need to survive through which body parts

Give four examples of species (animal or plants) that are over utilized

Define the role that oxygen plays in the electron transport chain

Give an example of a niche

Changing the temperature affects the shape of an enzyme. How might an increase in temperature affects the enzyme's function in the cell?

Which are processes that add to the genetic differences in siblings? Check all that apply. interphase independent assortment cytokinesis crossing over mitosis

Which of the following is a function of the cell membrane of a cell? A. The production of energy from food molecules using cellular respiration. B. The production of genetic material through DNA transcription. C.

Which process occurs only in autotrophic organisms?

Polymers are made of individual subunit called

What are the exergonic reactions that provide living systems with energy (give two examples) ?