*Question*
Q: Where do ectotherms get most of their heat? Choices: - food - metabolism - internally - external sources A:
**Answer**
external sources

*Question*
Q: The most common mode of asexual reproduction is through the formation of asexual these? Choices: - fibers - atoms - cells - spores A:
**Answer**
spores

*Question*
Q: What are the most numerous and diverse biochemical compounds? Choices: - lipids - acids - vitamins - proteins A:
**Answer**
proteins

*Question*
Q: What class of animals, translated as "head foot", includes octopuses, squids, cuttlefish, and nautilus? Choices: - mollusks - crustaceans - bivalves - cephalopods A:
**Answer**
cephalopods