Unit 3 part 2

Question 1

How does the food cycle normally progress

Answer 1

Producer->primary consumer->secondary consumer->top carnivore

Question 2

Producers are normally organisms that——-

Answer 2

Don’t consumer anything/ Are only fed on

Question 3

Primary consumers are normally———

Answer 3

Organisms that feed on the producer(they are always herbivores)

Question 4

Primary consumers are normally———-

Answer 4

Organisms that feed on the producer, these are always herboviores

Question 5

Name the apparatus used to measure light intensity

Answer 5

Light meter

Question 6

Describe the energy change that takes place during the first stage of
photosynthesis.

Answer 6

Light energy to chemical energy

Question 7

Describe the use of nitrates in a plant.

Answer 7

To create proteins/amino acids

Question 8

Explain how this increase in algae can cause aquatic plants in a river to
die.

Answer 8

Reduces light level which means plants can’t photosynthesise

Question 9

Which of the following is the only source of new alleles in a population?

Answer 9

Mutation