Ecosystem Dynamics

Which of the following are NOT true about ecosystems?

• Biotic and abiotic factors depend on each other

• Each ecosystem is made from an environment which is all the abiotic factors

• Biotic factors include plants, fungi, animals and bacteria.

• Abiotic factors include plants, fungi, animals and bacteria.

What is the best definition of diversity?

• The different kinds of species in an ecosystem

• The different types of the same species showing minor differences.

• The different biotic factors in an ecosystem

• The different kinds of insects like butterflies, beetles and moths

Tags

NGSS.MS-LS2-5

NGSS.MS-LS4-1

What is the difference between populations and communities?

• A population is the different communities together in an ecosystem.

• A community is the different populations together in an ecosystem.

• A community is made of the same species within an ecosystem.

• A population is a number of organisms of the same species within an ecosystem

What do we know is NOT true about the keystone species.

• It is always the producer because it makes all the energy

• it is any species that has the most significance

• It keeps the primary consumers from overeating the producers

• It saves the ecosystem from collapse

Tags

NGSS.MS-LS2-4

Which of the following do we not identify in a biome description?

• weather and climate

• Geological locations on Earth

• The types of landforms that shape the biome

• The different species interactions

Which of the following is NOT true about food webs?

• Energy transfers from predator to prey

• Arrows signify the movement of energy to consumer

• There can be many consumers that eat a to a producer

• There can be many producers that get eaten by a consumer

Tags

NGSS.MS-LS2-3

Which of the following is true about the APEX predator?

• It has common predators

• It is near the top of the food chain

• it is a primary consumer

• its diet is mainly other consumers and not producers

Tags

NGSS.MS-LS2-3

What do we know about this species interaction: MUTUALISM?

• When one species benefits and the other is harmed

• When one species benefits and the other is not harmed

• When one species benefits and the other is not harmed or benefits

• When one species benefits and helps the other benefit too.

Tags

NGSS.MS-LS2-2

What do we know about this species interaction: COMMENSALISM

• When one species benefits and the other is harmed

• When one species benefits and the other is not harmed

• When one species benefits and the other is not harmed or benefits

• When one species benefits and helps the other benefit too.

Tags

NGSS.MS-LS2-2

What do we know about this species interaction: PARASITISM

• When one species benefits and the other is harmed

• When one species benefits and the other is not harmed

• When one species benefits and the other is not harmed or benefits

• When one species benefits and helps the other benefit too.