Question

F. Answer the following questions: (any 2)
1. 'Explain the term Adaptation'.
2. How do insects breathe?
3. What is a habitat? Name the different habitats an Earth.​

Answer 1

Answer:

a)Adaptation is the physical or behavioural characteristic of an organism that helps an organism to survive better in the surrounding environment.” Living things are adapted to the habitat they live in. This is because they have special features that help them to survive.

b)Insects have a network of air tubes called tracheae for gas exchange. Oxygen rich air rushes through spiracles into the tracheal tubes, diffuses into the body tissue, and reaches every cell of the body. Similarly, carbon dioxide from the cells goes into the tracheal tubes and moves out through spiracles.

c)The area in which a particular organism lives naturally is known as its habitat. The five major habitats on Earth are forests, grasslands, deserts, mountains and polar regions.

Explanation:

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Answer 2

the process of change by which an organism or species becomes better suited to its environment
Oxygen and carbon dioxide gases are exchanged through a network of tubes called tracheae. Instead of nostrils, insects breathe through openings in the thorax and abdomen called spiracles. Insects that are diapausing or non-mobile have low metabolic rates and need to take in less oxygen.