*Question*
Q: What substances digest the food in the vacuole of an ingestive protist? Choices: - carbohydrates - lipids - hormones - enzymes A:
**Answer**
enzymes

*Question*
Q: What type of animal are most reptiles in regards to diet? Choices: - herbivores - omnivores - arthropods - carnivores A:
**Answer**
carnivores

*Question*
Q: Skeletal muscles must work in pairs to move bones back and forth at a joint because they can only do what? Choices: - vibrate - pull - expand - contract A:
**Answer**
contract

*Question*
Q: What significant part of the cell do prokaryotic cells lack? Choices: - a cell wall - a ribosome - mitochondrial dna - a nucleus A:
**Answer**
a nucleus