Review Unit 5: Ecosystems

What is the definition of biotic?

• living things in an ecosystem

• nonliving things in an ecosystem

• a characteristic that helps an organism survive and reproduce in its environment

• squirrels

What is the definition of abiotic?

• non-living things in the ecosystem

• producers

• the place in an ecosystem where an organism lives

• population

Tags

NGSS.MS-LS2-3

Define "habitat."

• the path of food energy from the sun to the producer to a series of consumers (showing the feeding relationships in an ecosystem)

• all organisms of the same species that live in the same place at the same time

• the place in an ecosystem where an organism lives

• all organisms of the same species that live in the same place at the same time

Which is the correct order of the levels of organization in an ecosystem from least to most diverse?

• population<organism<ecosystem<community<biome<biosphere

• organism< population<ecosystem<community<biome<biosphere

• organism<population<community<ecosystem<biosphere<biome

• organism<population<community<ecosystem<biome<biosphere

Which organisms mostly reproduce asexually?

• animals

• fungi

• plants

• fish

Tags

NGSS.MS-LS3-2

Define "food chain."

• a large region of land with a distinct climate and certain types of plant and animal life

• all organisms of the same species that live in the same place at the same time

• the part of the Earth that is able to support life

• the path of food energy from the sun to the producer to a series of consumers (showing the feeding relationships in an ecosystem)

Tags

NGSS.MS-LS2-3

How does energy transfer through the levels of the energy pyramid?

• Energy flows from smaller organisms to larger ones.

• Energy moves down through the energy levels of the food pyramid

• Energy moves up through the energy levels of the food pyramid.

• Energy moves from warm blooded organisms to cold blooded ones.

What does it mean to say there is equilibrium within an ecosystem?

• There are equal numbers of male and female organisms

• There are equal numbers of plants and animals

• A state of balance where the types of species living in an area are not changing rapidly.

• The ecosystem is unbalanced.

Which ecosystem most likely has the greatest biological diversity and therefore the highest sustainability?

• a pine tree in which three groups of birds live

• a rainforest that has many different types of plants and animals

• a tundra region that has many penguins

• a tank that includes several goldfish

Tags

NGSS.MS-LS2-5

Which of the following is an example of an interaction between a biotic and abiotic factor in an ecosystem?

• A deer drinks from a pond.

• A robin lays eggs.

• A fish eats an insect.

• Bacteria break down the remains of a dead plant

Tags

NGSS.MS-LS2-3