Which of the following statements is/are correct?1.Dolphins and Whales breathe through blowholes.2.Earthworm breathe through their skin.Select the correct answer from the code given below:

1. A

   Only 2

   Only 2. Blowholes are also keyed.

2. B

   Neither 1 nor 2

   Neither. Both NCERT respiration lines hold.

3. C

   Both 1 and 2

   Both 1 and 2. Cetaceans breathe through blowholes. Earthworms breathe through moist skin.

4. D

   Only 1

   Only 1. Skin breathing of earthworms is also keyed.

Summary. Official key is (c) both. Blowholes for dolphin/whale; skin for earthworm. Also note: Blowhole — Modified nostril on the head; Cutaneous — Earthworm; must stay moist; Gills — Fish; not this pair; Lungs — Frogs have lungs plus skin.