Q: What is another name for collar cells? Choices: - enzymes - sporozoans - clutches - choanocytes A:
choanocytes

Q: What is the term for dry climate regions at higher altitudes that have short grasses and low bushes? Choices: - deserts - fringes - prairie - steppes A:
steppes

Q: What type of relationship is it when one variable increases the other variable decreases? Choices: - divergence - curve - regression - inverse A:
inverse

Q: Sediments in oligotrophic lakes contain large amounts of what? Choices: - algae - fertilizer - igneous rocks - decomposable organic matter A:
decomposable organic matter