Microbiology Day 1: Ecology Review

Jane Goodall is famous for her _____ studies.

• Manipulative

• Observational

The layer of soil that is made up of mostly organic materials is the

• A horizon

• B horizon

• C horizon

• O horizon

Which of these biomes is represented by this climate diagram?

• Desert

• Tundra

• Tropical rainforest

• Tropical savannah

The layer at which temperature changes rapidly in the water is the

• Thermocline

• Gyre

• Pelagic

• Upwelling

What is the pesticide treadmill?

• Using mutagenesis to invent new pesticides

• A pipeline by which pesticides are invented and mass-marketed

• The maximum dose of pesticide that is safe for humans

• We have to come up with more, newer pesticides just to stay at the same level of control.

Peccaries like to eat cacti that have few spines. But parasitic insects like to eat cacti with lots of spines, because the spines keep their own predators away!  Therefore, cactuses do well with an average, intermediate number of spines.  This is an example of _____.

• Disruptive selection

• Directional selection

• Stabilizing selection

Which of these is a danger of inbreeding?

• Harmful recessive alleles

• It’s just icky

• Increased mutation rates

You and I are both at the same party, and we're both really hungry and like pizza.  The more pizza you eat, the less pizza is available to me.  What is the term for this behavior?

• Resource partitioning

• Competitive exclusion

• Exploitative competition

• Interference competition

Think of a Lotka-Volterra competition model between two kinds of fish, bluegill and sunfish. What does α stand for?

• The extinction rate of bluegill and sunfish

• The carrying capacity of bluegill and sunfish

• The competition between bluegill and sunfish

• The number of bluegill and sunfish

A cockroach is _____.

• r selected

• K selected