Unit 2 (Flashcard 4): Pulse Check - AB 24

Front

What happens to the bird population if a disease destroys barley plants in an ecosystem?

Back

The bird population would decrease.

Front

What factor would increase the carrying capacity of an ecosystem?

Back

An increase in available food.

Front

How much energy is lost as heat or used by organisms for survival in an energy pyramid?

Back

90%.

Front

What is the term for competition between members of different species?

Back

Interspecific competition.

Front

What is the relationship called when an increase in the hare population causes an increase in the lynx population?

Back

Density-Dependent: Predator-Prey.

Front

Define carrying capacity in an ecosystem.

Back

The maximum number of individuals of a species that an environment can support sustainably.

Front

What is the primary source of energy for ecosystems?

Back

The sun.

Front

Explain the concept of energy transfer in an energy pyramid.

Back

Energy decreases as it moves up the pyramid, with only about 10% of energy being transferred to the next level.

Front

What is the difference between intraspecific and interspecific competition?

Back

Intraspecific competition occurs between members of the same species, while interspecific competition occurs between different species.

Front

What role do producers play in an ecosystem?

Back

Producers convert solar energy into chemical energy through photosynthesis.