Which of these would be caused by a chemical change?

A)

The formation of lava.

B)

Sedimantary rock layering over time.

Eliminate

C)

Metamorphic rock forming from igneous.

D)

Metamorphic rock eroding to form sedimentary rock.

What would happen if prey were added to the food web? A, The population of predators could increase. B, The population of predators would fluctuate. C, The population of predators must stay the same. D, The population of predators would decrease.

Why is it a good idea to study experimental subjects in their natural enviroment?

What is the term for the organs that produce gametes and hormones?

When a rock is exposed to chemical weathering, it?

When oligomycin is added to an actively respiring muscle cell, ATP synthase is inhibited. Which of the following predicts the effect of oligomycin on the rate of oxygen usage and the rate of electron transport through the ETC?

Fred went to the doctor because his body was not producing semen. Which part of Fred's body was most likely functioning incorrectly to cause this problem.

What do metabolism, respiration, and digestion have in common? They break larger molecules into smaller ones. They build larger molecules. They are each single chemical reactions. They each involve multiple chemical reactions.

The possibility of down syndrome and other chromosomal disorders increases as the mother's age increases because

What happens during the light reaction of photosynthesis? A. Water molecules combine to make food. B. Air and water create energy for a plant. C. Carbon dioxide is combined with glucose. D. Water molecules split apart.

The purpose of a mordant in the Gram stain is to:a. remove the simple stain. b. make gram-negative cells visible. c. prevent the crystal violet from leaving the cells. d. make the bacterial cells larger. e. make the flagella visible.