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Grade 9 Ecology

Total questions: 29

Worksheet time: 15mins

Name
Class
Date
1.

The parts of Earth where life exists

a)

lithosphere

b)

biosphere

c)

hydrosphere

d)

atmosphere

2.

A land-based ecosystem

a)

abiotic

b)

aquatic ecosystem

c)

ecosystem

d)

terrestrial ecosystem

3.

A system that is made up of all the interacting biotic and abiotic parts of a certain place.

a)

aquatic ecosystem

b)

ecologist

c)

ecosystem

d)

abiotic

4.

This offers protection from UV radiation, helps hold in heat, and contains the oxygen and carbon dioxide required for animal and plant life.

a)

biosphere

b)

lithosphere

c)

hydrosphere

d)

atmosphere

5.

A series of chemical reactions, that occur in organisms near volcanic vents in the ocean floor, that produce energy using chemical compounds instead of sunlight.

a)

chemosynthesis

b)

respiration

c)

photosynthesis

d)

cyanobacteria

6.

How much energy is converted in a food chain after the organism it uses some of that energy for respiration.

a)

gross primary productivity

b)

productivity

c)

net primary productivity

d)

biomass

7.

The Earth's atmosphere is 78%

a)

nitrogen

b)

oxygen

c)

carbon dioxide

d)

argon

8.

During photosynthesis, plants use the Sun's energy to pull what element away from carbon dioxide and water?

a)

hydrogen

b)

carbon

c)

oxygen

9.

Chloroplasts

a)

evolved from cyanobacteria

b)

reflect green light

c)

are the site of photosynthesis

d)

all of these are correct

10.

Energy-rich food compound that stores chemical energy.

a)

glucose

b)

cellular respiration

c)

giraffe

d)

mitochondria

11.

Any living thing that gets the energy it needs by making its own food.

a)

photosynthesis

b)

cellular respiration

c)

producer

d)

consumer

12.

A model that describes how the energy that is stored in food is transferred from one living thing to another.

a)

glucose

b)

producer

c)

food chain

d)

cellular respiration

13.

A series of chemical changes that let living things release the energy stored in sugars to fuel all life functions.

a)

consumer

b)

cellular respiration

c)

photosynthesis

d)

glucose

14.

A series of chemical changes that let green plants capture the Sun's light energy and transform it into chemical energy.

a)

cellular respiration

b)

glucose

c)

photosynthesis

d)

food web

15.

Any substance that a living thing needs to sustain life.

a)

algal bloom

b)

nutrient

c)

decomposer

d)

fertilizer

16.

The pattern of continual use and reuse of a nutrient.

a)

nutrient cycle

b)

drought

c)

global warming

d)

decomposer

17.

Plants do cellular respiration.

a)

True

b)

False

18.

An organism that obtains energy by consuming dead plant and animal matter.

a)

drought

b)

decomposer

c)

global warming

d)

algal bloom

19.

A harmful interaction between two or more organisms that can occur when organisms compete for the same resource.

a)

carrying capacity

b)

predator

c)

host

d)

competition

20.

Any organism that exists by hunting and eating other organisms.

a)

predator

b)

limiting factor

c)

competition

d)

parasite

21.

Approximately how much energy moves from one trophic level to the next?

a)

1%

b)

10%

c)

50%

d)

90%

22.

A living plant or animal from which a parasite obtains nutrition.

a)

parasite

b)

host

c)

predator

d)

prey

23.

An organism that lives in or on, and takes its nourishment from, another organism.

a)

parasite

b)

host

c)

predator

d)

prey

24.

This is the maximum population of a species that an ecosystem can sustain.

a)

logistical growth

b)

density-independent limiting factor

c)

density-dependent limiting factor

d)

carrying capacity

25.

Any species that has been introduced into and lives in an ecosystem where it is not found naturally.

a)

species diversity

b)

introduced species

c)

watershed

d)

pollutants

26.

Any area of land that drains into a body of water.

a)

species diversity

b)

pollutants

c)

watershed

d)

diversity

27.

The number and variety of different species of living things in an area.

a)

biodiversity

b)

diversity

c)

pollutants

d)

introduced species

28.

Without public health restrictions, what kind of growth would Covid-19 demonstrate?

a)

linear

b)

logistical

c)

exponential

d)

we don't know

29.

Social distancing is an example of

a)

carrying capacity

b)

density-dependent limiting factor

c)

density-independent limiting factor

d)

logistics