Populations and Resources Key Concepts Quiz

What is the relationship between the size of the resource population and the availability of energy storage molecules for its consumer populations?

• The larger the resource population, the fewer energy storage molecules are available for its consumer populations.

• The larger the resource population, the more energy storage molecules are available for its consumer populations.

• The size of the resource population does not affect the availability of energy storage molecules.

• The smaller the resource population, the more energy storage molecules are available for its consumer populations.

Under which condition will the population size be stable?

• When there are more births than deaths.

• When there are more deaths than births.

• When the number of births and deaths in a given time are equal.

• The population size is always stable.

What will happen to the size of the population if there are more births than deaths?

• The size of the population will decrease.

• The size of the population will increase.

• The size of the population will remain stable.

• The size of the population will fluctuate.

How can the size of a population be affected in a food web?

• It can only be affected by the population it preys upon.

• It cannot be affected by any population in the food web.

• It can be affected by any population that is connected to it in a food web, even if they are not directly connected.

• It can only be affected by the population that preys on it.

How does a larger consumer population impact its resource population?

• It will need fewer energy storage molecules, leading to fewer deaths in the resource population.

• It will need more energy storage molecules, causing more deaths in the resource population.

• It doesn't affect the resource population.

• It leads to a larger resource population.

How does the availability of energy storage molecules affect the reproduction rate within a population?

• The less energy storage molecules, the more organisms can reproduce.

• The availability of energy storage molecules does not affect a population.

• The more energy storage molecules available to a population, the more the organisms in that population can reproduce.

• Energy storage molecules only affect the lifespan of organisms.

What can happen when two populations compete for the same resource population?

• They will both increase in size.

• A change to one of these populations affects the size of the other.

• Both populations will go extinct.

• The size of the competing populations will remain the same.

What best describes a stable system?

• It can be stable even as things are being added to and removed from it.

• It remains stable only when nothing is added or removed.

• It becomes unstable if things are added or removed.

• It changes drastically when things are being added or removed.

Why do organisms need to release energy from energy storage molecules?

• To reproduce.

• To hibernate.

• To migrate.

• To adapt to their environment.

Organisms are always being born and dying.

• True

• False