The only types of changes that can happen to an ecosystem are biological.

1) True

2) False

Which best describes Earth's south magnetic pole? O A. Aligned with the geographic North Pole O B. Aligned with the geographic South Pole O C. Stationary D. Moving

What happens if an egg is not fertilized after being released from the ovary?

List the two general classifications of animal parasites

What happens during the energy investment phase of glycolysis? a. Glucose is converted to 2 molecules of Glyceraldehyde 3-phosphate and 2 ATP molecules are consumed. b.

Which step of photosynthesis can occur during the presence or absence of light?

Suppose you use a microscope to look at a cell from the leaf of a tree. What structure will you see that would not be found in a cell from your fingernail? A. mitochondria B. cilia C. cell wall D. ribosomes

Name the three energy roles that organisms fill in an ecosystem.

Adrenergic postganglionic neurons release the hormones norepinephrine and epinephrine. Adrenergic postganglionic neurons release the hormones norepinephrine and epinephrine. True False

Which of the following are examples of the first specialized tissues?

Which structure of the trachea prevents it from collapsing inward and obstructing the air passageway?