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Ecology (LS) ch 3-5

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

The combined portion of Earth in which all living things exist is called the

a)

biosphere

b)

ecosystem

c)

community

d)

biome

2.

What organisms make their own food with sunlight or chemical energy?

a)

producers

b)

consumers

c)

decomposers

d)

scavengers

3.

Which organism is the autotroph in this food web?

a)

Aphids

b)

Oak Tree

c)

Caterpillar

d)

Hawk

4.

Which organism gets its energy from the Aphids?

a)

Hawk

b)

Oak Tree

c)

Thrush

d)

Ladybird

5.

Which description below shows how energy flows through a food chain?

a)

Producers------> carnivores-------> herbivore

b)

Sun-----> producers-----> herbivores-----> carnivores

c)

Sun-----> herbivores ----->carnivores ----->producers

d)

Carnivores ----->producers ----->herbivores

6.

The average year to year conditions of temperature and precipitation within a particular region are its

a)

Biotic factors

b)

Weather

c)

greenhouse effect

d)

Climate

7.

________________is when one organism captures and feeds on other organisms

a)

Competition

b)

Predation

c)

mutualism

d)

Commensalism

8.

What is a biotic factor in this ecosystem?

a)

rocks

b)

temperature

c)

dragonfly

d)

water

9.

What is an abiotic factor in this ecosystem?

a)

rocks

b)

temperature

c)

dragonfly

d)

water

10.

The maximum number of organisms of a particular species that can be supported by an environment is called

a)

Population density

b)

exponential growth

c)

logistical growth

d)

Carrying capacity

11.

Since the Industrial revolution, human populations have

a)

Leveled off

b)

Reached carrying capacity

c)

grown more rapidly

d)

Decreased

12.

Which kind of growth does the human population follow? It is described as a J-shaped curve.

a)

Exponential Growth

b)

Logistic Growth

c)

Outstanding Growth

d)

Minimal Growth

13.

If the caterpillar gets poisoned, who else can get poisoned?

a)

Hawk

b)

blackbird

c)

Thrush

d)

All of the Above

14.

An environment's biotic and abiotic factors interact to make a(n)

a)

habitat

b)

ecosystem

c)

niche

d)

resource

15.

An animal that eats only plants or producers is a(n)

a)

decomposer

b)

herbivore

c)

carnivore

d)

omnivore