Ap bio eoclogy 8.1-8.5

Which of the following is true of endotherms?

• Endotherms can regulate their body temperature internally.
• Endotherms have body temperatures that fluctuate widely.
• Endotherms cannot maintain a constant body temperature.
• Endotherms rely on external sources to regulate their body temperature.

Smaller animals tend to have a ________ metabolic rate per unit of body mass compared to larger animals

• Higher

• Lower

Which of the following is on the lowest trophic level?

• Primary producers

• Secondary consumers

• Primary consumers

• Tertiary consumers

Heterotrophs....

• Produce their own energy

• Maintain stable body temperatures

• Must consume other organisms

• Share common ancestry with one another

Likelihood of two animals to cooperate with one another does NOT correlate with which of the following?

• Genetic Relatedness

• Likliehood of interacting multiple times with the same individuals

• Ability to recognize each other

• Population size of the species

Which line represents ectotherms

• Dotted

• Solid

• Neither

Developers have approved a project that will permanently reduce the primary producers’ biomass by 50 percent and remove all rabbits and deer.

Which of the following is the most likely result at the completion of the project?

• More rabbits

• Less coyotes

• voles will start outcompeting deer

• more hawks

There are 25 squids in the population. There is no net immigration or emigration. If 15 squids die and 30 squids are born in one month, what is the population size at the end of the month?

• 20

• 55

• 15

• 40

• 0

Suppose there are 100 frogs. They have 10 baby frogs of the course of a year. 25 of the adults die. 0.1 frogs per year is the _________ for the population

• Per capita birth rate

• dn/dt

• birth capita growth rate

• Population size

Which of the following are components used to describe the biodiversity of a population

• evenness

• age of individuals

• birth rates

• richness