Worksheet Chapter 1: Biodiversity

1. Explain TWO main reasons why maintaining biodiversity is vital to human survival and industry.

2. A student claims that whales belong to the fish group because they live in water and swim using fins. Explain whether this statement is correct and justify your answer with THREE structural features of whales.

3. True or False: Homeothermic animals have body temperatures that change continuously according to their surrounding environment.

4. True or False: Ferns are non-flowering vascular plants that reproduce by producing spores.

5. State TWO differences between In-situ conservation and Ex-situ conservation.

6. An unknown plant species has leaves with parallel venation and a fibrous root system. (a) Is this a monocotyledon or a dicotyledon? (b) State one other characteristic of this plant group regarding its seed structure.

7. Which of the following organisms is a dicotyledonous plant?

8. Construct a simple dichotomous key to classify the following four organisms: Grasshopper, Earthworm, Frog, and Eagle.

9. Fill in the blank: The diversity of living organisms, including animals, plants, and microorganisms inhabiting an ecosystem, is known as ________.

10. Classify the following animals into poikilothermic or homeothermic: (a) Eagle, (b) Snake, (c) Frog, (d) Elephant.