Q: The chloroplasts contain a green pigment called what? Choices: - chloroplasm - sodium - melanin - chlorophyll A:
chlorophyll

Q: Some plants open their leaves during the day to collect what? Choices: - moisture - precipitation - energy - sunlight A:
sunlight

Q: Q: What causes the particles of medium to move parallel to the direction of the wave? Choices: - mechanical waves - fluid waves - Sound waves. - longitudinal waves A:
A: longitudinal waves

Question: Q: Traditionally, mammals were divided into groups based on what? Choices: - their sizes - their colors - their behaviors - their characteristics A:
Answer: their characteristics

*Question*
Q: What do secondary spermatocytes form when completing meiosis? Choices: - pores - semen - sporozoans - spermatids A:
**Answer**
spermatids

(Q).
Q: What is the term for a loop in which a product feeds back to control its own production? Choices: - Recondition Mechanism - load mechanism - Adaptive Mechanism - feedback mechanism A:
(A).
feedback mechanism