Ecology Tiffany Jones

Ecology Tiffany Jones

9th - 12th Grade

9 Qs

quiz-placeholder

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Ecology Tiffany Jones

Ecology Tiffany Jones

Assessment

Quiz

Biology

9th - 12th Grade

Hard

NGSS
MS-LS2-5, MS-LS2-4, MS-LS2-3

+2

Standards-aligned

Created by

Charles Martinez

FREE Resource

9 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which type of community is more resilient to chance?

Less diversity & fewer parts

Lass diversity & more parts

More diversity & fewer points

More diversity & more parts

Answer explanation

Chance are random environmental changes that might occur. The more diversity allows for the favorable characteristic to be present in the ecosystem.

Tags

NGSS.MS-LS2-5

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Keystone species have a…

Disproportionate affect relative to abundance

Proportionate affect relative to abundance

Answer explanation

A keystone species is a species on which other species in an ecosystem largely depend, such that if it were removed the ecosystem would change drastically.

Example: The sea otter maintains the kelp forest

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens if a keystone species is removed…

Community becomes more diverse

Ecosystem collapses

No effect due to minor role

Population becomes less diverse

Answer explanation

A keystone species is a species on which other species in an ecosystem largely depend, such that if it were removed the ecosystem would change drastically which affects the existing food web and the ecosystem could collapse.

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

NGSS.MS-LS2-5

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of these does not contribute to maintain diversity?

Decomposer

Essential abiotic/biotic factor

Keystone species

Producer

Answer explanation

This is directly from the CED. Diversity refers to the species richness and the relative abundance. A decomposer will break down detritus (decomposing materials).

Tags

NGSS.MS-LS2-5

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of environment is resistant to change?

Low diversity, low component parts

High diversity, low component parts

Low diversity, high component parts

High diversity, high component parts

Answer explanation

A high diversity will allow for the favorable characteristic to be present in the ecosystem.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the keystone species is removed what happens?

Their predator population increases

Their predator population decreases

The ecosystem collapses

The ecosystem stabilizes

Answer explanation

The sea otter is a keystone species. When the sea otter is removed, the sea urchins that the sea otters prey upon increases in population which destroys the kelp forest. The sea otter keeps the sea urchin population in check so the kelp forest can be maintained.

Tags

NGSS.MS-LS2-4

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Abiotic factors

Factor that causes living organism to die

Factor that causes living  organisms to reproduce

Living factor

Nonliving factor

Answer explanation

Abiotic factors are nonliving factors while biotic factors are living factors.

Tags

NGSS.MS-LS2-3

8.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Predators are an example of

Abiotic factors

Biotic factors

Answer explanation

Predators prey upon the other organisms. Since the predators are living and affect the prey population, they would be considered a biotic factor.

9.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens if sea otters decrease?

Sea urchins increase, kelp increases

Sea urchins decrease, kelp increases

Sea urchins increase, kelp decreases

Sea urchins decrease, kelp decreases

Answer explanation

Sea otters eat sea urchins and sea urchins eat kelp. If the sea otter population decreases, the sea urchin population will increase which will decrease the kelp population.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-3

NGSS.MS-LS2-4