input with options: Q: Water is a polar compound, so its molecules are attracted to each other and form what kind of bonds? A:
OPTIONS:
- mixed
- carbon
- helium
- hydrogen
output: hydrogen

Q: Q: Who controls prey population? A:

OPTIONS:
- ecosystems
- bees
- parasites
- predators

A: predators

input: OPTIONS:
- Classic Evolution
- simple evolution
- similar evolution
- biological evolution Now, answer this question: Q: When changes in the genes of a species result in a new species, the process is called what? A:
A:
output: biological evolution

Q: The hormone androgen increases aggressiveness and promotes what type of behaviors? A:

OPTIONS:
- nervous
- asexual
- cognitive
- sexual

Answer: sexual

Problem: OPTIONS:
- natural selection
- neuroimaging
- expediting
- imprinting
Q: Q: Scientists utilize what natural process to teach cranes born in captivity to migrate along safe routes? A:
Answer: imprinting

Q: Acting like drawstrings to close off the alimentary canal, what regulates the passage of material between compartments? A:

OPTIONS:
- intestine
- hamstring
- uterus
- sphincter

Answer:
sphincter