Unit 8 Study Guide - Ecosystems

Presentation

•

Science

•

6th - 8th Grade

•

Practice Problem

•

Easy

•

NGSS

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

Standards-aligned

Stacy Reed

Used 1+ times

FREE Resource

2 Slides • 24 Questions

Ecosystem Study Guide

Dropdown

Blue Whales feed on

Dropdown

If blue whale populations decreases, the

population would likely increase.

Multiple Choice

If blue whale numbers increase, what will happen to the phytoplankton?

phytoplankton would increase

phytoplankton would decrease

phytoplankton would not change

phytoplankton would go extinct

Dropdown

Pollination is a service carried out by

and

Dropdown

The more organisms in an ecosystem, the

it will be.

Fill in the Blanks

Draw

In an ecosystem lizards eat grasshoppers, snakes eat mice, grasshoppers and mice eat grass. Draw the food web.

Multiple Choice

The type of succession that stars from a bare rock.

primary

secondary

tertiary

basic

Multiple Choice

The type of succession that stars with soil.

Primary

Secondary

Tertiary

Multiple Choice

The first species to enter a disturbed area.

primary consumers

pioneer species

secondary consumer

primary species

Multiple Choice

Examples of pioneer species after a forest fire.

large trees

raccoons

small grasses and wildflowers

shrubs and small trees

Match

Match the term to the definition

primary succession

secondary succession

pollinator

pioneer species

lichen

the process of community development on a previously uninhabited area

the process of community recovery after a disturbance

an organism that helps in the transfer of pollen

species that colonize previously disrupted or damaged ecosystems

small plants that break down rocks

Multiple Choice

More diverse ecosystems have ___________ different species.

fewer

many

three

two

Dropdown

More diverse ecosystems are generally more

to disturbances.

Multiple Choice

In a food web, changes in one population can affect __________.

the rest of the organisms

only the producers

only the apex predators

Drag and Drop

Removing all of the grass affects

and

consumer populations.

Drag these tiles and drop them in the correct blank above

primary

secondary

pioneer

producer

Multiple Choice

Two ecosystems are compared. Ecosystem A has a biodiversity index of .5 and Ecosystem B has a biodiversity index of .35. Which ecosystem has the greatest biodiversity?

Ecosystem A

Ecosystem B

Both have the same biodiversity

Neither has greater biodiversity

Multiple Choice

Two more ecosystems are compared. Ecosystem C has 230 different species, Ecosystem D has 115. Which ecosystem is more sustainable?

Ecosystem C

Ecosystem D

Fill in the Blanks

Multiple Choice

How does decreases in biodiversity impact ecosystem stability?

Changes in biodiversity can reduce ecosystem stability.

Changes in biodiversity can enhance ecosystem stability.

Biodiversity has no effect on ecosystem stability.

Match

Put the pictures in the correct order of succession.

disturbance

grasses and small plants

shrubs and bushes

climax community

Multiple Choice

In what stage would the pioneer species be found?

Disturbance

shrubs and bushes

climax community

grasses and small flowering plants

Multiple Choice

Which takes longer, primary or secondary succession?

Primary Succession

Secondary Succession

Multiple Choice

What is the order of succession shown in this figure?

A, B, C, D

B, A, D, C

C, D, A, B

D, A, B, C

Ecosystem Study Guide

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