Q: Q: What occurs when the presence or absence of a specific behavior prevents reproduction from taking place? A:

OPTIONS:
- spontaneous mutation
- natural selection
- primary speciation
- behavioral isolation

A: behavioral isolation

input: OPTIONS:
- Shield
- Dome
- Compound
- composite Now, answer this question: Q: A crater can usually be found on the top of what kind of volcanoes? A:
A:
output: composite

Q: In what way do bacteria reproduce? A:

OPTIONS:
- sexual reproduction
- fragmentation
- cellular respiration
- binary fission

Answer: binary fission

Problem: OPTIONS:
- anaerobic
- digestive
- pulmonary
- respiratory
Q: Q: Terrestrial animals lose water by evaporation from their skin and which surfaces? A:
Answer: respiratory

Problem:OPTIONS:
- lock
- handle
- pivot
- lever

Q: Canoe paddles, nutcracker, and hammer are examples of what type of simple machine? A:
****
A: lever

Problem:OPTIONS:
- lecithin
- membranes
- eukaryotes
- phospholipids

Q: The cell membrane consists of two adjacent layers of what? A:
****
A:
phospholipids