Population and Resources key concept Quiz

What is a constant occurrence within any given population of organisms?

• Organisms are always evolving.

• Organisms are always migrating.

• Organisms are always being born and dying.

• Organisms are always adapting to their environment.

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.

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.

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

• To reproduce.

• To hibernate.

• To migrate.

• To adapt to their environment.

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 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.

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.

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.

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.