input: OPTIONS:
- exploitation
- mutations
- third growth
- secondary growth Now, answer this question: Q: All gymnosperm species and many eudicot species undergo what? A:
A:
output: secondary growth

Q: What kind of variation does a rate measure? A:

OPTIONS:
- environment to time
- value to time
- construction to time
- property to time

Answer: property to time

Problem: OPTIONS:
- spines
- antennae
- claws
- tentacles
Q: Q: Cnidarians have a simple digestive system with a single opening surrounded by what type of structures, which are used to capture prey? A:
Answer: tentacles

Problem:OPTIONS:
- potential energy
- molecular energy
- physical energy
- mechanical energy

Q: What type of energy is produced when two objects move together? A:
****
A: mechanical energy

Q: What is a fluid-filled body cavity that is completely enclosed by mesoderm called? A:
OPTIONS:
- pseudocoelom
- hymenium
- choroid
- coelom
coelom

Q: The contents of which organ are mixed every 20 seconds? A:
OPTIONS:
- the metabolism
- pancreas
- kidney
- the stomach

Answer:
the stomach