*Question*
Q: How long ago did the ancestors of mammals evolve? Choices: - 10 million - 50,900 million years - 100 million - 300 million years A:
**Answer**
300 million years

*Question*
Q: What harmful substance must not be drained into s storm sewer? Choices: - alcohol - debris - water runoff - motor oil A:
**Answer**
motor oil

*Question*
Q: Asci are used by mycelia for what kind of reproduction? Choices: - asexual reproduction - mitosis - cloning - sexual A:
**Answer**
sexual

*Question*
Q: Plants and fungi cells have what basic cell structure, which animals do not have? Choices: - Cytoskeleton - Lysosomes - Cell Membrane - cell wall A:
**Answer**
cell wall