Which of the following statements are correct?
I. Housefly have sponging type of mouthparts.
II. Honey-bee have biting and chewing type of mouth parts.
III. Butterflies have siphoning type of mouthparts.
IV. Cockroaches have chewing and lapping type of mouthparts.

Question

Accepted Answer

Explanation:

Option 2 is the correct answer, which states that only statements I and III are correct. Let's examine each statement to understand why this is the case:

I. Housefly have sponging type of mouthparts.
- This statement is correct. Houseflies possess sponging mouthparts, which are adapted for soaking up liquid or semi-liquid food. The mouthparts of a housefly consist of a proboscis that ends in a sponge-like structure called the labellum, which allows them to absorb nutrients from their food.

II. Honey-bee have biting and chewing type of mouth parts.
- This statement is incorrect. Honeybees have a combination of chewing and sucking mouthparts, not purely biting and chewing. Their mouthparts are adapted for both chewing pollen and sucking nectar, which is essential for their role in pollination and honey production.

III. Butterflies have siphoning type of mouthparts.
- This statement is correct. Butterflies have siphoning mouthparts, which are specialized for feeding on nectar. Their proboscis is a long, coiled tube that allows them to reach into flowers to access nectar.

IV. Cockroaches have chewing and lapping type of mouthparts.
- This statement is incorrect. Cockroaches have chewing mouthparts, which are adapted for biting and grinding a wide variety of food materials. They do not have lapping mouthparts.

Therefore, Option 2 is correct because it accurately identifies that only statements I and III are true. The other options are incorrect because they include statements that do not accurately describe the mouthparts of the respective insects.