Question

Differentiate between abiotic and biotic components of the environment with examples of each. (2) Define habitats. How many types of habitats are there? (2+1) Name at least three types of terrestrial habitats. Give examples of structural adaptations of two living organisms from two types of terrestrial habitats? (1.5 + 3) What adaptations are observed in lotus plants that enable them to survive in their habitats? (2) Why is speed important for organisms to survive in the grassland? (2) What is ‘Hibernation’? Give examples to explain. (2) State two characteristics of living organisms with examples of each. (3) What are different types of excretion that takes place in animals and plants respectively. (3) What is ‘stimuli’? Give examples to illustrate. (1+1) Differentiate between physical and chemical changes. (2) Are all physical changes reversible? Justify your answer with examples. (2) A candle stick burns by producing smoke. What changes are taking place in the phenomenon? (3) Explain why the change in states of matter is a physical change? (2)

Answer 1

Answer:

1. adverb phrase by an adverb clause : 1) In spite of poverty he became distinguished . 2) They were very greatfull to him for his kindness

Answer 2

Physical changes are changes affecting the form of a chemical substance, but not its chemical composition. ... Examples of physical properties include melting, transition to a gas, change of strength, change of durability, changes to crystal form, textural change, shape, size, color, volume and density.