NEET Chemistry: Biology - Zoology questions with solutions

Q1. Silk, honey and lac are

1. Secretory substance of insects.
2. Secretory substance of plants
3. Artificial chemicals.
4. All of the above.

Answer: Secretory substance of insects.

Silk, honey, and lac are all produced by insects: silkworms make silk, honeybees make honey, and lac insects secrete lac. So they are secretory substances of insects.