Q: How does sap get to the tops of tall trees? Choices: - through suction power - via Coriolis forces - through pressure from below - through negative pressure A:
through negative pressure

Q: Innate behaviors occur in all animals. however, they are less common in species with higher levels of what? Choices: - hormones - interdependence - nonverbal communication - intelligence A:
intelligence

Q: Q: Scientists use the principles of what to make predictions, which they then test? Choices: - their teachers - their guesses - their faith - their hypothesis A:
A: their hypothesis

Question: Q: The light reactions take place in which membranes? Choices: - the cell membranes - the phospholipid - the stroma - the thylakoid A:
Answer: the thylakoid

*Question*
Q: How many classes of biochemical compounds are there? Choices: - one - five - three - four A:
**Answer**
four

Q: What are the most numerous blood cells? Choices: - neutrophils - white blood cells - platelets - red blood cells A:
red blood cells