B9 Habitats

Question 1

In a food chain, the type of organism which uses energy from the sun is a…

Answer 1

Producer

Question 2

A primary consumer is likely to eat a…

Answer 2

Producer

Question 3

Herbivores feed on…

Answer 3

Producers only

Question 4

Carnivores feed on…

Answer 4

Consumers only

Question 5

Omnivores feed on…

Answer 5

Producers and consumers

Question 6

In a habitat, pike feed on trout and perch. If the trout were removed, what would be the effect on pike? Use the words ‘the population of pike’ in your answer.

Answer 6

The population of Pike would reduce because there is less food available.

Question 7

Animals that are active only at night are said to be…

Answer 7

Nocturnal

Question 8

In order to find feeding or breeding grounds an animal may…

Answer 8

Migrate

Question 9

If there are 10 daisies growing in an average square metre of lawn, how many daisies are there in total if the area of the lawn is 40 square metres?

Answer 9

10 per square metre X 40 = 400 daisies

Question 10

The population of daisies on a lawn could be best measured with…

Answer 10

A quadrat

It’s a square grid that can be placed at random in your habitat to count different species.

Question 11

Explain why it is important for farmers to control the amount of pesticides sprayed on crops.

Answer 11

Pesticides may get inside animals and plants but not always kill them.
The chemicals get passed up the food chains.
Animals at the top of the food chain can get a concentrated dose of the chemicals, which can be harmful.
We are at the top of many food chains!

Question 12

Name a habitat you have studied and name two physical factors that you have measured.

Answer 12

Clue: Physical factors are things like temperature, availability of water, soil pH (how acidic or alkaline) and light intensity.

Question 13

Suggest a plant from your habitat whose population is affected by competition. Name the other animals or plants involved.

Answer 13

For example: The population of ______ is affected by competition with ____ for _____

Question 14

Name an animal you have studied and suggest how it adapts to seasonal changes in the environment (over a year).

Answer 14

For example, an animal that hibernates or migrates to make the best of the weather or food availability.

Question 15

Name a plant you have studied and suggest how it adapts to daily changes in the environment.

Answer 15

For example, many plants react to light by moving or protecting their flowers at night.

Question 16

Suggest an animal from your habitat whose population is affected by predation. Name the predator.

Answer 16

For example: The population of ______ is affected by predation from _____

Question 17

Complete this food chain using these organisms: newt, pond weed, heron

_________ —> tadpole —> _________ —> _________

Answer 17

Pond weed –> tadpole –> newt –> heron

Question 18

In a habitat, pike feed on trout and perch. If the perch were removed, what would be the effect on trout?

Answer 18

The population of trout would reduce due to extra predation from pike.

Question 19

Complete this food chain using these organisms: fox, grass.

__________ —> rabbit —> __________

Answer 19

Grass –> rabbit –> fox

Question 20

Choose one animal from a habitat you have studied and suggest two ways in which it is suited to life there.

Answer 20

Think of an adaptation of that plant that makes it suited to the habitat. Does it grow fast, is it poisonous, is it capable of growing very tall?

Question 21

Name a herbivore from a habitat that you have studied.

Answer 21

Clue: herbivores only eat producers (plants).

Question 22

Describe how you would measure the population of beetles living on a large lawn.

Answer 22

Place a quadrat randomly on the lawn several times.
Count the number of beetles in an average square metre.
Multiply the average by the area of the lawn.

Question 23

Explain why it is important for farmers to control the amount of pesticides sprayed on crops.

Answer 23

Pesticides may get inside animals and plants but not always kill them.
The chemicals get passed up the food chains.
Animals at the top of the food chain can get a concentrated dose of the chemicals, which can be harmful.

Question 24

Suggest a plant from your habitat whose population is affected by predation. Name the predator.

Answer 24

For example: The population of ______ is affected by predation from _____

Question 25

Suggest an animal from your habitat whose population is affected by competition. Name the other animals or plants involved.

Answer 25

For example: The population of ______ is affected by competition with ____ for _____

Question 26

Name an omnivore from a habitat that you have studied.

Answer 26

Clue: omnivores eat both producers (plants) and consumers (animals).

Question 27

Name a carnivore from a habitat that you have studied.

Answer 27

Clue: carnivores eat only consumers (animals).

Question 28

What is a habitat?

Answer 28

It is the home or environment of a living thing.

Question 29

Name a plant you have studied and suggest how it changes over 12 months.

Answer 29

For example, many plants make and disperse seeds which survive over the winter. Some plants store food underground to use in spring.

Question 30

Explain why most food chains start with a producer.

Answer 30

Producers (plants) get energy from the sun. Consumers (animals) depend on producers for all their energy needs.

Question 31

Write down a food chain including at least three organisms from a habitat you have studied.

Answer 31

Don_t forget to start with a producer (plant). The arrow means 'gets eaten by'.

Question 32

Name a habitat you have studied and suggest how the environment changes over 24 hours.

Answer 32

Ideas: variations in light, temperature.

Question 33

Name a habitat you have studied and suggest how the environment changes over 12 months.

Answer 33

Ideas: variations in climate, day length.

Question 34

Name an animal you have studied in its habitat and suggest how its population varies over 12 months.

Answer 34

For example: The population of ______ rises during spring and falls during the winter.

Question 35

Name a plant you have studied and suggest how it adapts to seasonal changes in the environment (over a year).

Answer 35

For example, many plants make and disperse seeds which survive over the winter. Some plants store food underground to use in spring.

Question 36

Name an animal you have studied and suggest how it adapts to daily changes in the environment.

Answer 36

For example, some animals are nocturnal. Some hunt only at dusk or dawn.

Question 37

If there are 9 daisies growing in an average square metre of lawn, how many daisies are there in total if the rectangular lawn measures 5 m by 10 m?

Answer 37

The lawn is 5 m X 10 m = 50 square metres. 9 per square metre X 50 = 450 daisies

Question 38

Using a quadrat a gardener counts the number of dandelion plants growing in random square metres on her lawn. 1st count: 9 plants, 2nd count: 14 plants, 3rd count: 13 plants. Predict how many dandelions there are in total if the rectangular lawn measures 5 m by 8 m. Show your working.

Answer 38

Average per square metre = (9+14+13) divided by 3 = 12 dandelions Lawn area = 5 m X 8 m = 40 square metres Total = 12 per metre X 40 = 480 dandelions