Heston draws a food chain found in an Arabian desert. Complete Heston's table by adding 'Yes or No' to show what terms describe each organism along the food chain. S.No Desert grass Jerboa(rodent) Cobra (snake) Peregrine falcon (bird) Producer Herbivore Carnivore Primary consumer Secondary consumer Top predator Prey

The Arabian desert food web begins with the vegetation and plant life which provides a source of food to many animals. The jerboa, Hare and birds are second trophic level in the food chain along with herbivores such as Ibex and gazelle and insects like the locust. These wildlife species are eaten by animals such as the Arabian cobra, hyena, jackal, scorpion and wolf. The work of decomposition is mainly carried out by the Scarab Beetle. S.No Desert grass Jerboa(rodent) Cobra (snake) Peregrine falcon (bird) Producer Yes No No No Herbivore No Yes No Yes Carnivore No Yes Yes Yes Primary consumer No Yes No Yes Secondary consumer No No Yes No Top predator No No No No Prey No Yes Yes Yes

E M B I B E

Cambridge Lower Secondary Science Stage 7 : Workbook>Chapter 3 - Habitats and the Environment>Exercise 2>Q 3

HARD

Lower Secondary Stage 7

IMPORTANT

Earn 100

Hyenas, harvester ants, star grass and aardvarks are all organisms found living in the savanna grasslands.

Hyenas are carnivores and predators of aardvarks

Harvester ants are herbivores

Star grass is a producer

Aardvarks are predators of ants

Use the information to construct a food chain for these organisms. Add the following labels to your diagram: top predator, primary consumer and secondary consumer.

Important Questions on Habitats and the Environment

MEDIUM

Lower Secondary Stage 7

IMPORTANT

Cambridge Lower Secondary Science Stage 7 : Workbook>Chapter 3 - Habitats and the Environment>Exercise 2>Q 4

Which type of organisms can make their own food using energy from the Sun? Choose one box only.

MEDIUM

Lower Secondary Stage 7

IMPORTANT

Cambridge Lower Secondary Science Stage 7 : Workbook>Chapter 3 - Habitats and the Environment>Exercise 2>Q 5

Describe the similarities and differences between herbivores, carnivores, and omnivores.

EASY

Lower Secondary Stage 7

IMPORTANT

Cambridge Lower Secondary Science Stage 7 : Workbook>Chapter 3 - Habitats and the Environment>Exercise 2>Q 6

What do the arrows in a food chain represent?

MEDIUM

Lower Secondary Stage 7

IMPORTANT

Cambridge Lower Secondary Science Stage 7 : Workbook>Chapter 3 - Habitats and the Environment>Exercise 2>Q 7

Explain why all organisms need food.

MEDIUM

Lower Secondary Stage 7

IMPORTANT

Cambridge Lower Secondary Science Stage 7 : Workbook>Chapter 3 - Habitats and the Environment>Exercise 2>Q 8

Lana says, 'humans could not survive without plants: Is this true? Explain why?

MEDIUM

Lower Secondary Stage 7

IMPORTANT

Cambridge Lower Secondary Science Stage 7 : Workbook>Chapter 3 - Habitats and the Environment>Exercise 2>Q 9

Heston draws a food chain found in an Arabian desert. Complete Heston's table by adding 'Yes or No' to show what terms describe each organism along the food chain.