Q: Plants alternate between haploid and what? Choices: - triploid - monoplooid - monoxoid - diploid A:
diploid

Q: What is the outer core made of? Choices: - compressed air - solid rock - solid iron - liquid metal A:
liquid metal

Q: Q: What type of fatty acids have bent chains? Choices: - cholesterol - saturated fatty acids - lipids - unsaturated fatty acids A:
A: unsaturated fatty acids

Question: Q: When the hydrogen is nearly used up, the star can fuse which element into heavier elements? Choices: - carbon - xenon - oxygen - helium A:
Answer: helium

*Question*
Q: What occurs when muscle fibers get shorter? Choices: - muscle extension - muscle tension - muscle diffusion - muscle contraction A:
**Answer**
muscle contraction

*Question*
Q: What property makes bone marrow cells ideal for gene therapy? Choices: - behavior reproduction - irreversible reproduction - Matching - lifelong reproduction A:
**Answer**
lifelong reproduction