Which of the following statements is/are correct? 1. Dolphins and whales breathe through blowholes. 2. Earthworms breathe through the skin. Select the correct answer using the code given below.

விடையைக் காட்டு & விளக்கம்

விடை: (D) Both 1 and 2

விளக்கம்

Cetaceans are air-breathing mammals using a blowhole (modified nostril); earthworms respire through their moist skin (cutaneous respiration).