CC - Ecosystem Interactions Practice Quiz

What is a keystone species?

• A species that is the most numerous in an ecosystem

• A species that has a disproportionately large effect on its environment

• A species that is always at the top of the food chain

• A species that only eats plants

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Which of the following is the base of an energy pyramid?

• Primary consumers

• Secondary consumers

• Producers

• Tertiary consumers

Tags

NGSS.MS-LS1-6

What does carrying capacity refer to?

• The number of predators in an ecosystem

• The maximum population size an environment can support

• The amount of energy in a food web

• The number of species in a habitat

Tags

NGSS.MS-LS2-4

Which term describes the relationship where both species benefit?

• Parasitism

• Mutualism

• Commensalism

• Competition

Which of the following best describes parasitism?

• Both organisms benefit

• One organism benefits, the other is harmed

• Both organisms are harmed

• One organism benefits, the other is unaffected

What is an ecological niche?

• The physical space an organism lives in

• The role and job a species has in its environment

• The number of individuals in a population

• The amount of food available

Tags

NGSS.MS-LS2-2

Which level of the energy pyramid contains herbivores?

• Producers

• Primary consumers

• Secondary consumers

• Tertiary consumers

Tags

NGSS.MS-LS2-3

What is the main source of energy for most ecosystems?

• The moon

• The sun

• Wind

• Water

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

Which of the following is an example of mutualism?

• A tick feeding on a dog

• Bees pollinating flowers

• A lion hunting a zebra

• A bird nesting in a tree without affecting it

What happens to energy as it moves up the energy pyramid?

• It increases

• It stays the same

• It decreases

• It disappears completely

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6