Science Quiz Ecosystems & Populations

What is the carrying capacity of an ecosystem?

• The number of plants within an ecosystem

• The number of prey within an ecosystem

• The number of predators within an ecosystem

• The number of individuals within a population that an ecosystem can support

What are the abiotic factors that can change in an ecosystem?

• Food, water, and sunlight

• Temperature, weather, and soil type

• Space to grow, shelter, and sunlight

• Space, food, and water

What is the limiting factor that restricts the growth of populations in an ecosystem?

• Competition for resources

• Carrying capacity

• Abiotic factors

• Biotic factors

What is the behavior of animals related to seasonal changes called?

• Hibernation

• Symbiosis

• Mating behavior

• Migration

What is the symbiotic relationship in which one organism benefits and the other is harmed called?

• Commensalism

• Parasitism

• Cooperation

• Mutualism

What is an invasive species?

• A native plant or animal that contributes positively to the local ecosystem.

• A species that is brought to a new area & becomes harmful to the environment, economy, or human health.

• A type of plant that is used in gardening & landscaping.

• An endangered species that needs protection to survive.

What is the relationship between a pollinator and a flowering plant an example of?

• Mutualism

• Commensalism

• Parasitism

• Cooperation

What is the term for the movement of populations in and out of ecosystems?

• Symbiosis

• Hibernation

• Migration

• Competition

What is the greatest number of individuals within a population that an ecosystem can support called?

• Abiotic factor

• Biotic factor

• Limiting factor

• Carrying capacity

What is the term for a period of inactivity during which animals lower their body temperature?

• Courtship

• Symbiosis

• Hibernation

• Migration