Exam 5: Biodiversity, Species Interactions, and Population Control

Detritus feeders and decomposers are considered predators.

Which of the following is said to occur when an interaction benefits one species but has little, if any, effect on the other?

There are always limits to population growth in nature.

Kelp forests are a very important ecosystem in marine waters by supporting important biodiversity.These kelp forests are threatened by all of the following except

Use the Figure above to answer the following question(s). -Choose the letter that represents population size when the population reaches equilibrium between resource use and population size.

A population's growth rate will increase as the population reaches its carrying capacity.

Systems, such as the global climate, can reach a(n) ____________________, where any additional stress can cause the system to change in an abrupt and usually unpredictable way that often involves collapse.

Explain coevolution using the interaction between the malaria parasite and humans.

In predator-prey relationships, the predator is seeking food for itself and its offspring, while the prey is seeking not to become food for the predator.As a result, predator and prey populations exert tremendous natural selection pressures on each other.

One of the factors determining at what rate succession occurs is _______________, in which one set of species makes an area suitable for other species with different requirements.

Use the Figure above to answer the following question(s). -Choose the portion of the graph that can be called a dieback.

Which of the following is not a method predators use to capture prey?

Humans are exempt from population overshoot and dieback.

____________________ is a competitive interaction between species for food and/or space.

The most common interaction between species is ____________________.

A plot of the number of individuals in a population against time yields a sigmoid or S-shaped curve, typical of ____________________ growth.

The gradual change in species composition in a given area is called ____________________.

What was the primary reason the southern sea otter nearly went extinct by the early 1900s?

Which of the following is an example of a density-independent population control?

____________________ occurs when a member of one species feeds directly on all or part of a member of another species.