Q: The mechanical and digestive processes have one goal: to convert food into molecules small enough to be absorbed by the epithelial cells of what? A:

OPTIONS:
- bile ducts
- stomach cilia
- alveoli
- intestinal villi

Answer: intestinal villi

Problem: OPTIONS:
- acids
- cells
- fats
- proteins
Q: Q: Dna encodes instructions for what kind of molecules? A:
Answer: proteins

Problem:OPTIONS:
- clutch pipettes
- macropipettes
- frozen pipettes
- micropipettes

Q: What kind of pipettes are suitable for measuring very small amounts of liquids? A:
****
A: micropipettes

Q: Fungi may have both asexual and sexual stages of what? A:
OPTIONS:
- absorption
- development
- photosynthesis
- reproduction
reproduction

Q: Displacement divided by time is equal to the average what? A:
OPTIONS:
- force
- speed
- acceleration
- velocity

Answer: velocity

input with options: Q: What happens to the core of a star when it begins to run low on hydrogen? A:
OPTIONS:
- it expands
- it disappears
- it explodes
- it contracts
output:
it contracts