Which of the following statements are correct 1 Old portions of roots do not have roo...........

Science Affairs Botany

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Which of the following statements are correct?

1. Old portions of roots do not have root hair and hence they do not participate in respiration.

2. In woody plants bark has lenticels for gaseous exchange

3. Insects breath through their skin

4. Frogs breath both by skin and lungs

Which of the statement(s) given above are correct?

1 and 3

1 and 4

2 and 3

2 and 4

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Explanation:

Instead of lungs, insects breathe with a network otiny tubes called tracheae. Air enters the tubes through a row of holes along an insect's abdomen. The air then diffuses down the blind-ended tracheae. Since the biggest bugs have the longest tracheae, they should need the most oxygen to be able to breathe.old portion of plants havee mature root hairs.