Ecosystems Review Davis

An organism's niche is it's ________.

• Population

• Role

• Species

• Order

How does energy flow through an ecosystem?

• Tertiary consumer > Secondary consumer > Primary consumer > Producer

• Primary consumer > Secondary consumer > Producer > Omnivore

• Producer > Primary consumer > Secondary consumer > Tertiary consumer

What is NOT a limiting factor for polar bears?

• Seal population

• Sea ice

• Crane population

In parasitic relationships the host organism ___________.

• Suffers

• Benefits

• Is not harmed nor helped

The ______________ is the largest number of a particular organism that an ecosystem can support.

• Community

• Population

• Carrying capacity

• Limiting factor

______________ eat both consumers and producers.

• Predators

• Decomposers

• Omnivores

• Herbivores

A _________________ is anything that can limit the size of a population.

• Environmental trigger

• Environmental factor

• Limiting factor

• Developing factor

A/an _____________ includes all the living and non-living things in an area.

• Environment

• Ecosystem

• Biome

• Habitat

All the living things in an ecosystem are ____________ factors.

• Biotic

• Abiotic

• Symbiotic

• Mitoic

An organism that consumes waste and dead organisms for their food.

• Decomposer

• Herbivore

• Omnivore

• Predator