Q: Thyroid hormones increase the rate of
Options:
- (A) by making heat
- (B) the rest of the body
- (C) female sex cells
- (D) Helps them grow
- (E) hydration of their cells
- (F) heat produced
- (G) converting food to energy
- (H) aerobic capacity
A: So, my chain of thought: Thyroid hormones increase the rate of metabolism in cells throughout the body. Metabolism is the process of converting food to energy. Thyroid hormones increase the rate of converting food to energy. The answer is (G).

Q: Echidnas reproduce how?
Options:
- (A) asexually
- (B) by indirect light
- (C) spread flower seeds
- (D) during the day
- (E) by birthing live young
- (F) by laying eggs
- (G) by budding
- (H) with their fur
A: So, my chain of thought: Monotremes are mammals that reproduce by laying eggs. Examples of monotremes are the Platypus and Echidna. Echidnas reproduce by laying eggs. The answer is (F).

Q: What does the fishhook cactus release during the day but not during the night.
Options:
- (A) heat
- (B) Air
- (C) water
- (D) carbon monoxide
- (E) carbon dioxide
- (F) oxygen
- (G) Energy.
- (H) Energy
A:
So, my chain of thought: Plants release oxygen during the day but not during the night. Another kind of plant is the fishhook cactus. The fishhook cactus releases oxygen during the day but not during the night. The answer is (F).