UPPCS · প্রশ্ন 34
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.
উত্তর দেখান ও ব্যাখ্যা
উত্তর: (D) Both 1 and 2
ব্যাখ্যা
Cetaceans are air-breathing mammals using a blowhole (modified nostril); earthworms respire through their moist skin (cutaneous respiration).