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Biology · Karatasi 2B · 2000

3 maswali

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Maswali (3)

Sehemu A

1. 30 alamas

Dissect the provided specimen Y to expose the reproductive system. (a) Draw a well-labelled diagram of the reproductive system showing five parts. (b) Determine the sex of specimen Y. Give four justifications based on your observation. (c) Why is it important to stun or anaesthetize a specimen before dissection?

  1. Draw a well-labelled diagram of the reproductive system showing five parts. (10 alama)
  2. Determine the sex of specimen Y. Give four justifications based on your observation. (12 alama)
  3. Why is it important to stun or anaesthetize a specimen before dissection? (8 alama)

Boresha ili kuona majibu ya mfano.

Sehemu B

2. 10 alamas

You are provided with solution Z. Use the reagents provided to perform food tests. (a) Complete the biochemical test and tabulate your findings below: Food Tested | Procedure | Observation | Inference (b) Name two natural food sources from which solution Z might have been obtained. (c) State the first site of digestion, the digestive juice involved, and the end product of the food substance tested from solution Z.

  1. Complete the biochemical test and tabulate your findings below: Food Tested | Procedure | Observation | Inference (4 alama)
  2. Name two natural food sources from which solution Z might have been obtained. (2 alama)
  3. State the first site of digestion, the digestive juice involved, and the end product of the food substance tested from solution Z. (4 alama)

Boresha ili kuona majibu ya mfano.

Sehemu C

3. 10 alamas

Observe the following specimens: A, B, C, D, and E. Then respond to the following: (a) What are four observable differences between specimen A and B? (b) Give two reasons why specimen C is placed under Class Insecta. (c) List three adaptive features of specimen D that enable it to grow in sandy soil. (d) Draw specimen E and label three visible parts.

  1. What are four observable differences between specimen A and B? (4 alama)
  2. Give two reasons why specimen C is placed under Class Insecta. (2 alama)
  3. List three adaptive features of specimen D that enable it to grow in sandy soil. (3 alama)
  4. Draw specimen E and label three visible parts. (1 alama)

Boresha ili kuona majibu ya mfano.

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