Problem: OPTIONS:
- beat harder
- thrive
- beat erratically
- die
Q: Q: The loss of oxygen to the heart muscle causes that part of the tissue to what? A:
Answer: die

Problem:OPTIONS:
- stems
- cells
- flowers
- seeds

Q: Gymnosperms have evolved to include what? A:
****
A: seeds

Q: What term means controlling body temperature within a narrow range from the inside through biochemical or physical means? A:
OPTIONS:
- exothermy
- regulation
- evaporation
- endothermy
endothermy

Q: The iconic gray mantle of the human brain, which appears to make up most of the mass of the brain, is called? A:
OPTIONS:
- brain stem
- lobes
- thrombus
- cerebrum

Answer: cerebrum

Question: Q: What is the term for how much matter is packed into a given space? A:
OPTIONS:
- opacity
- volume
- mass
- density
Answer: density

input: OPTIONS:
- radio waves
- heat waves
- gamma waves
- sound waves Now, answer this question: Q: Scanning acoustic microscopes use what kind of waves to scan a specimen? A:
A:
output:
sound waves