Competition in Ecosystems and food webs

1.

Multiple Choice

30 sec

1 pt

Not living, or produced by living things

Abiotic factors

Biotic factors

Ecosystem

Population

2.

Multiple Choice

30 sec

1 pt

Living, or produced by living things

Biotic factor

Abiotic factor

Organisms

Competition

3.

Multiple Choice

30 sec

1 pt

Hawks and owls eat the same type of food and struggle with one another to get their food. What is this an example of?

Competition

Biotic factor

Symbiosis

Population

4.

Multiple Choice

30 sec

1 pt

The specific environment in which all the biotic and abiotic factors in an area interact.

Ecosystem

Organism

Struggle

Competitive Interaction

5.

Multiple Choice

30 sec

1 pt

Two or more interacting individuals of the same species located in the same area.

Population

Community

Ecosystem

The YMCA

6.

Multiple Choice

30 sec

1 pt

An organism that gets its energy by feeding on producers in the food chain

Primary Consumer

Secondary Consumer

Apex predator

A lion

7.

Multiple Choice

30 sec

1 pt

An animal that eats other animals that eat plants.

Secondary Consumer

Primary Consumer

Teritery Consumer

Carnivore

8.

Multiple Choice

1 min

1 pt

Hawks and brown bears live together in the same habitat. There will be competition between the hawks and the brown bears only if which of the following is true?

Brown bears hibernate during the winter while hawks remain active.

Pesticides in the fish population affect hawks’ eggs and decrease their population.

Both brown bears and hawks feed on the same species of fish.

Both Shanna and Savanna feed on the same species of snakes.

9.

Multiple Choice

1 min

1 pt

An increase in which of the following factors is likely to contribute to competition between two members of the same species living in a certain habitat?

Available food resources

Population of the species

Annual snowfall

Overall size of the habitat

10.

Multiple Choice

1 min

1 pt

The population of deer in a certain area is monitored over a period of six years. The data is represented in the graph provided. Which of the following is the most likely explanation for the change in population in 2009?

Wild dogs, which prey on deer, were being hunted more than usual.

Snowfall in the previous spring was higher than the yearly average.

Humans introduced grazing animals that feed on the same plants as the deer.

More insects that pollinate flowering plants move into the ecosystem.

11.

Multiple Choice

1 min

1 pt

Competition becomes more important as the number of individuals ______ or the availability of resources _________.

increases, decreases

increases, increases

decreases, increases

decreases, decreases

12.

Multiple Choice

30 sec

1 pt

In an ecosystem, what do organisms and populations with similar needs compete over?

food

water

shelter

all of the above

13.

Multiple Choice

30 sec

1 pt

Two species of fish live in the same pond. Which of the following would increase competition between these two species of fish?

Habitat temperature increases.

Population of birds that eat the fish increases.

Number of food plants the fish eat increases.

Water level in the pond decreases.

14.

Multiple Choice

30 sec

1 pt

Which of the following lists contains only abiotic factors?

water, air, temperature

grass, air, people

trees, fish, polar bears

grass, water, sand

15.

Multiple Choice

2 mins

1 pt

True or False: The population size of predators are equal to the population size of prey.

True

False

16.

Multiple Choice

2 mins

1 pt

What do the arrows in food chains and food webs represent?

The arrows point in random directions.

The arrows point to what will be eaten.

The arrows point in the direction the life cycle moves.

The arrows point in the direction the energy flows.

17.

Multiple Choice

5 mins

1 pt

The owl receives energy from which organisms?

grasshopper and mouse

mouse and rabbit

rabbit and butterfly

butterfly and frog

18.

Multiple Choice

5 mins

1 pt

How many predators does the squid have?

1

2

3

4

19.

Multiple Choice

5 mins

1 pt

Name the producers in this food web.

seagull and fish

penguin and crab

phytoplankton and seaweed

seaweed and zooplankton

20.

Multiple Choice

5 mins

1 pt

What type of consumer is the shrew?

herbivore

omnivore

carnivore

21.

Multiple Choice

5 mins

1 pt

What type of consumer is the impala?

herbivore

omnivore

carnivore

22.

Multiple Choice

2 mins

1 pt

How much energy is available to be passed on to the next level in an ecosystem?

100%

10%

50%

75%

23.

Multiple Choice

2 mins

1 pt

Why might an organism have more than one arrow coming from them in a food web?

More than one organism may eat them.

They may eat more than one other organism.

This organism gets its energy from multiple sources.

They have no resources available to them.

24.

Multiple Choice

30 sec

1 pt

Use the graph to answer the question. A hurricane occurred at some point in this ecosystem. Which of the following choices is the most likely time that the hurricane occured?

year 2

year 5

year 7

year 12

25.

Multiple Choice

30 sec

1 pt

What is the most likely adaptation for a rabbit which once lived in the snow but now lives in shrubs and rocks due to increased global temperature?

they will see an increase in fur production

they will become better swimmers

they will grow longer ears

their coats will become darker due to natural selection

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