Exam code: 0653
Which row contains the words that can replace X, Y and Z in the description of a food chain?
Energy from the Sun is transferred as …X… to be stored as …Y… energy in a …Z… .
X | Y | Z | |
A | chemical | light | consumer |
B | chemical | kinetic | producer |
C | light | chemical | producer |
D | light | kinetic | consumer |
Was this exam question helpful?
Which reasons explain why deforestation contributes to climate change?
species become extinct | increased risk of flooding | increase in atmospheric carbon dioxide | |
A | ✗ | ✗ | ✓ |
B | ✓ | ✓ | ✗ |
C | ✗ | ✓ | ✗ |
D | ✓ | ✗ | ✗ |
Was this exam question helpful?
Fig. 3.1 shows a food web:
(i) Identify the producer in Fig. 3.1.
[1]
(ii) Place a tick (✓) in each box that describes the puffin in Fig. 3.1.
[2]
(iii) Pollution in the ocean can kill squid.
Explain how this may reduce the number of foxes.
[2]
(iv) Pollution is one reason why squid may become endangered.
State two other reasons why squid may become endangered.
[2]
Decomposers are important organisms in ecosystems.
Complete the description of a decomposer.
A decomposer is an organism that gets its .................. from dead or waste .................. material.
Was this exam question helpful?