Q: Q: When plants lose their leaves in the fall, what chemical is produced less to cause the change? A:

OPTIONS:
- pheromes
- carbonate
- oxygen
- chlorophyll

A: chlorophyll

input: OPTIONS:
- oxygen and carbon
- oxygen and calcium
- carbon and sulfur
- oxygen and sulfur Now, answer this question: Q: What two types of atoms bond to form sulfate minerals? A:
A:
output: oxygen and sulfur

Q: What is the simplest form of matter that has a unique set of properties? A:

OPTIONS:
- atom
- molecule
- quark
- element

Answer: element

Problem: OPTIONS:
- the arteries
- the stomach
- the large intestine
- the atria
Q: Q: The remainder is transferred by contraction of what before the ventricles begin to contract? A:
Answer: the atria

Problem:OPTIONS:
- brain tissues
- intestines
- bones
- lungs

Q: About 20 percent of carbon dioxide is bound by hemoglobin and is transported where? A:
****
A: lungs

Problem:OPTIONS:
- carotenoids
- metabolites
- hormones
- corticosteroids

Q: Glucocorticoids and mineralocorticoids are the two main types of what in humans? A:
****
A:
corticosteroids