Warm-blooded animals are those which are able to keep their body temperature -

Which one of the following pairs of animals is warm-blooded?

The animal without red blood cells is

Which one of the following animals has a three-chambered heart?

Which of the following organisms has white blood?

Which of the following statements is/are correct? 1. Dolphins and Whales breathe through blowholes. 2. Earthworm breathe through their skin.