Problem: OPTIONS:
- uterus
- mitochondria
- notochord
- placenta
Q: Q: What mammalian structure allows the exchange of gases, nutrients, and other substances between the fetus and mother? A:
Answer: placenta
Problem: OPTIONS:
- acceleration
- magnetism
- gravity
- symmetry
Q: Q: Newton's third law of motion describes what property of forces that means balance? A:
Answer: symmetry
Problem: OPTIONS:
- steam
- emissions
- liquids
- gas
Q: Q: What state of matter is characterized by tiny particles separated by large distances, which do not experience any force of attraction or repulsion with each other? A:
Answer:
gas