*Question*
Q: Nearly all fish reproduce sexually and have what? Choices: - modified sexes - flexible sexes - single sexes - separate sexes A:
**Answer**
separate sexes

*Question*
Q: What element makes up the majority of coal? Choices: - iron - lead - silicon - carbon A:
**Answer**
carbon

*Question*
Q: Where do germline mutations occur in? Choices: - in aggregations - in spores - In blood cells - in gametes A:
**Answer**
in gametes

*Question*
Q: Almost all vascular plants have mycorrhizae and rely on their fungal partners for what? Choices: - respiration - sunlight - air - nutrients A:
**Answer**
nutrients