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Feeding behavior with a high energy intake-to-expenditure ratio is called
Optimal foraging
What shape is a logistic graph?
S-shaped
What is an event that changes a community, removes organisms from it, and alters resource availability?
Disturbance
A cow's herbivorous diet indicates that it is a(n)
primary consumer
Which is NOT a level of biodiversity
- Genetic
- Biomes
- Species
- Ecosystems
biomes
Displays of nocturnal mammals are usually
olfactory and auditory
Which of the following causes populations to shift from an exponential to a logistic population growth?
Competition for resources
What type of mimicry involves a palatable or harmless species mimicking an unpalatable or harmful one
Batesian mimicry
The major role of detrivores in ecosystems is to
recycle chemical nutrients to a form capable of being used by autotrophs.
What is a species that is likely to become endangered called?
A threatened species
Female spotted sandpipers aggressively court males and, after mating, leave the clutch of young for the male to incubate. This sequence may be repeated several times with different males until no available males remain, forcing the female to incubate her last clutch. Which of the following terms best describes this behavior?
polyandry
Which of the following could be a density–independent factor limiting human population growth?
pollution
A zoonotic pathogen transfers from other animals to what?
humans
Which of the following would be considered an example of bioremediation?
adding nitrogen–fixing bacteria to a degraded ecosystem to increase nitrogen availability
What size population is prone to inbreeding and genetic drift which lead to an extinction vortex?
small populations
Fred and Joe, two unrelated, mature male gorillas, encounter one another. Fred is courting a female. Fred grunts as Joe comes near. As Joe continues to advance, Fred begins drumming (pounding his chest) and bares his teeth. Joe then rolls on the ground on his back, gets up, and quickly leaves. This behavioral pattern is repeated several times during the mating season. Choose the most specific behavior described by this example.
Agnostic behavior
Nesting season for penguins is an example of what type of population dispersion?
Uniform
- High
- Moderate
- Low
Consider the food chain grass → grasshopper → mouse → snake → hawk. How much of the chemical energy fixed by photosynthesis of the grass (100%) is available to the hawk?
0.01%
What is a narrow strip of quality habitat connecting otherwise isolated patches called?
A movement corridor
What is the fitness benefit of polygamy in birds that have young which hatch ready to take care of themselves?
Fit males don't have to help feed and rear young and can spend this time seeking and mating with many females.
Which of the following is characteristic of K–selected populations such as a population of wolves in a stable environment?
offspring with good chances of survival
In Top-Down Controls, what controls community organization?
Predation
In ecosystems, why is the term cycling used to describe material transfer, whereas the term flow is used for energy exchange?
Materials are repeatedly used, but energy flows through and out of ecosystems.
Zoned reserves are used as ____ zones of relatively undisturbed areas?
buffer