Q: What is the main component of phytoplankton? Choices: - sponge - coral - seawater - algae A:
algae

Q: What is the term for a structure within the cytoplasm that performs a specific job in the cell? Choices: - vacuole - nucleolus - molecule - organelle A:
organelle

Q: Q: What type of joint has the greatest range of motion? Choices: - Hinge - Gliding - Pivot - ball-and-socket A:
A: ball-and-socket

Question: Q: Gram-positive and gram-negative bacteria are distinguished by thickness of what? Choices: - cell membrane - cell weight - cell length - cell wall A:
Answer: cell wall

*Question*
Q: What type of oil is being explored to replace petroleum products in lubricants? Choices: - essential oil - diesel - whale oil - vegetable A:
**Answer**
vegetable

(Question)
Q: Gymnosperms have evolved to include what? Choices: - stems - cells - flowers - seeds A:
(Answer)
seeds