Quiz about Grade 10 Ecology Test

Question 1

What is the order of succession shown in this figure?

Accepted Answer

C, D , A, B

Answer

A, B, C, D

Answer

B, A, D, C

Answer

D, A, B, C

Question 2

Organisms that produce their own food mostly through photosynthesis are called.

Accepted Answer

Autotrophs

Answer

Heterotrophs

Answer

Chemotrophs

Answer

Decomposers

Question 3

Heterotrophs that get energy and nutrition from dead or decaying organisms or their waste products by releasing digestive enzymes on them to access the stored nutrients, then recycle nutrients back to the ecosystem are called ___________.

Accepted Answer

Decomposers

Answer

Detritivores

Answer

Autotrophs

Answer

Scavengers

Question 4

Parts of an ecosystem that are living or deal with the living. Examples include producers, consumers, decomposers, predation, disease, competition, parasitism, and symbiosis.

Accepted Answer

Biotic factors

Answer

Abiotic factors

Answer

Ecosystem

Answer

Feeding relationships

Question 5

Which of the following organisms is a primary consumer?

Accepted Answer

Rabbit

Answer

Grass

Answer

Fox

Answer

Snake

Question 6

Which of the following organisms in competition with the weasel for their food source?

Accepted Answer

Snake

Answer

Grass

Answer

Rabbit

Answer

Fox

Question 7

What would happen to the rabbit population if the fox population moved out of the area represented by the food web?

Accepted Answer

The rabbit population would increase

Answer

The rabbit population would decrease

Answer

The rabbit population would neither increase nor decrease

Answer

The rabbit population would become extinct

Question 8

What might happen if you remove a primary consumer from the ecosystem?

Accepted Answer

The number of plants would increase.

Answer

There would be more food for secondary consumers.

Answer

The number of primary consumers would increase.

Answer

The number of secondary consumers would increase.

Question 9

What does a food chain represent?

Accepted Answer

A single path of energy transfer within a habitat.

Answer

How all living organisms within a habitat are connected.

Answer

All of the things that a particular animal eats.

Answer

How plants create their own food.

Question 10

The arrows in a food chain or web represents what?

Accepted Answer

They show what direction the energy is flowing between organisms.

Answer

They point to the organism that is being eaten.

Answer

It shows how sunlight flows within an ecosystem.

Answer

They represent how water is transferred within a habitat.

Question 11

How much energy is passed on to each trophic level in a food chain?

Accepted Answer

10 %

Answer

1%

Answer

0.1%

Answer

50%

Question 12

Variety of species or richness in the number of species in an ecosystem throughout the entire biosphere is the definition of ____________.

Accepted Answer

Species diversity

Answer

Genetic diversity

Answer

Ecosystem diversity

Answer

Interaction diversity

Question 13

These dogs are all the same species, but they look very different from one another because of

Accepted Answer

Genetic diversity

Answer

Ecosystem diversity

Answer

Species diversity

Answer

None of the above.

Question 14

Which of the following biomes represents the place that is MOST likely to have the highest species diversity?

Accepted Answer

Rainforest

Answer

Tundra

Answer

Grassland

Answer

Desert

Question 15

Genetic diversity is important because

Accepted Answer

The more genetically diverse a population is, the more likely it is to survive environmental changes.

Answer

The more genetically diverse a population is, the cooler they look for National Geographic.

Answer

The more genetically diverse a population is, the more likely they are to go extinct.

Answer

None of the above

Question 16

Earth's biosphere contains may different biomes (rainforest, deserts, tundras, savannah, grassland), this is an example of

Accepted Answer

Ecosystem biodiversity

Answer

Genetic biodiversity

Answer

Species diversity

Answer

Keystone biodiversity

Question 17

Which of the following removes carbon from the atmosphere?

Accepted Answer

Photosynthesis

Answer

Combustion

Answer

Respiration

Answer

Death

Question 18

How do animals get carbon?

Accepted Answer

By eating plants and or other animals.

Answer

They absorb it from the atmosphere.

Answer

From the soil

Answer

They do not get carbon from anywhere.

Question 19

Which part of the carbon cycle occurs when plants, trees, or fossil fuels are burned?

Accepted Answer

Combustion

Answer

Photosynthesis

Answer

Respiration

Answer

Decomposition

Question 20

How has man influenced the carbon cycle and increased the amount of carbon in the atmosphere?

Accepted Answer

All of the above

Answer

Burning coal

Answer

Cutting down trees

Answer

Burning oil

Question 21

How does carbon get into the soil?

Accepted Answer

All of the above

Answer

When a human dies

Answer

When a plant dies

Answer

When an animal dies

Question 22

The diagram shows the flow of organic molecules through an ecosystem. What two processes are identified by the labels X and Y?

Accepted Answer

X : Decomposition

Y : Respiration

Answer

X : Respiration

Y : Predation

Answer

X : Photosynthesis

Y : Decomposition

Answer

X : Fossilization

Y : Combustion

Question 23

The blank box labelled X represents _______________.

Accepted Answer

Carbon compound in animals

Answer

Feeding

Answer

Decomposition

Answer

Respiration

Question 24

What type of succession is shown going from figure A to figure B?

Accepted Answer

Secondary succession

Answer

Primary succession

Answer

Ecological succession

Answer

Intermediate succession

Question 25

The picture shows what type of succession?

Accepted Answer

Primary

Answer

Secondary

Answer

Tertiary

Answer

Quaternary

Question 26

What are examples of pioneer species in a primary succession?

Accepted Answer

Mosses and Lichens

Answer

Bushes and Shrubs

Answer

Oak trees

Answer

A rose Bush

Question 27

What is the most important function of pioneer species?

Accepted Answer

To create soil and add nutrients to the environment

Answer

To create rocks

Answer

For beautification of the environment

Answer

Food for animals

Question 28

Natural disasters such as flooding and tornadoes are linked to ________________.

Accepted Answer

Secondary succession

Answer

Primary succession

Answer

Ecosystems

Answer

Carbon cycle

Question 29

Which of the following best describes primary succession?

Accepted Answer

Volcano creates a new island of rock that must break down to form an ecosystem

Answer

Volcano wipes out ecosystem that gradually grows back from ash covered soil

Answer

Forest fire burns down forest that must bounce back over time

Answer

Tornado destroys a crop that must slowly grow back over time.

Question 30

Why does biodiversity increase during the course of succession?

Accepted Answer

Many populations of organisms gradually begin to occupy the same area to create a climax community.

Answer

Biodiversity refers to the difference in ages of organisms, so some organisms arrive earlier than others.

Answer

Over time, the same trees begin to reproduce and take over an area.

Answer

Many organisms move in to the area for a short amount of time, then leave to find a better habitat.

Question 31

Humans often build asphalt or concrete roads to travel through areas, such as forests. After many years, plants can be seen growing on the roads. What kind of succession is this?

Accepted Answer

Primary

Answer

Secondary

Answer

Tertiary

Answer

Quaternary

Question 32

What is the main difference between primary and secondary ecological succession?

Accepted Answer

Primary begins WITHOUT soil; Secondary begins WITH soil

Answer

Primary is the first state and secondary is the second stage

Answer

Primary builds plant community; secondary builds animal community

Answer

Primary begins WITH soil; Secondary begins WITHOUT soil

Question 33

_______ occurs when two organisms are trying to acquire or get the same resources.

Accepted Answer

Competition

Answer

Symbiosis

Answer

Predation

Answer

Collaboration

Question 34

_______ occurs when 1 organisms kills and eats another for food.

Accepted Answer

Predation

Answer

Symbiosis

Answer

Competition

Answer

Collaboration

Question 35

Two male deer fight over a female. This is an example of

Accepted Answer

Competition

Answer

Symbiosis

Answer

Collaboration

Answer

Predation

Question 36

An organism in a food web that feeds directly on the producer.

Accepted Answer

Primary Consumer

Answer

Secondary Consumer

Answer

Decomposer

Answer

Carnivore

Question 37

An organism in a food web that eats other consumers to obtain energy and is not eaten by another organism. Choose the BEST answer.

Accepted Answer

Top Consumer

Answer

Producer

Answer

Prey

Answer

Scavenger

Grade 10 Ecology Test

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