Cambridge IGCSE · Marine Science (0697)

Mangrove forest: Practice Questions

5 multiple-choice questions marked as you go, and 5 written questions with worked solutions. All on Mangrove forest.

10 questions24 marksFree, no account

Question 1

1 mark

Which adaptation allows a mudskipper to continue obtaining oxygen while it is active on land?

Question 2

1 mark

The banded archerfish uses which specific adaptation to capture prey located on branches above the water surface?

Question 3

1 mark

A mudskipper is observed remaining active on land for an extended period. Which two adaptations work together to allow this behavior?

Question 4

1 mark

What happens to the salinity of the water in a mangrove estuary during a flood tide (incoming tide)?

Question 5

1 mark

Mangrove forests are often found in estuarine environments. Which statement best describes the changes in dissolved oxygen levels during a tidal cycle?

Question 6

2 marks

State two structural adaptations of mangrove trees that help them survive in waterlogged, low-oxygen soils.

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Question 7

3 marks

Describe how the leaves of some mangrove species, such as Avicennia, are adapted to manage high salinity within their environment.

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Question 8

6 marks

Describe the changes in salinity and dissolved oxygen that occur within a mangrove estuary during a single tidal cycle from low tide to high tide.

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Question 9

3 marks

(a) Describe the typical structure and environment of a mangrove forest.

(b) Explain why mangrove forests are often located in estuarine environments.

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Question 10

5 marks

Mangrove trees have evolved specific anatomical adaptations to survive in harsh coastal conditions.

(a) Explain how pneumatophores enable mangrove trees to survive in waterlogged soil.
(b) Describe the role of prop roots in the mangrove ecosystem.
(c) Some mangrove species manage high salt concentrations through their leaves. Describe this mechanism.

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