Q: What occurs when the cartilage at the ends of the bones breaks down? Choices: - stress fracture - rheumatism - osteoporosis - osteoarthritis A:
osteoarthritis

(Question)
Q: What thin whip-like structures help prokaryotes move toward food or away from toxins? Choices: - sporangia - cilia - antennae - flagella A:
(Answer)
flagella

Ques: Q: What are the "levels" in a food chain or web called? Choices: - parts - root - gauges - trophic A:
Ans: trophic

(Q).
Q: What type of mammals includes opossums, kangaroos, and koalas? Choices: - crustaceans - arthropods - monotremes - marsupials A:
(A).
marsupials

Ques:Q: What happens to neutral matter when electrons are transferred between objects? Choices: - osmosis - it stays neutral - it dissolves itself - it becomes charged A:

Ans:it becomes charged

Ques:Q: Plants are described by what term, meaning their cells have a nucleus and membrane-bound organelles? Choices: - complex - prokaryotic - walled - eukaryotic A:

Ans:
eukaryotic