Consider the following statements regarding Transport system in animals:
1. All vertebrates possess a muscular chambered heart.
2. Birds and mammals possess a 4-chambered heart with two atria and two ventricles.
3. Annelids and chordates have a closed circulatory system.
Which of the statements given above is/are correct?1
1 and 2 only
2
2 and 3 only
3
1 and 3 only
4
1, 2 and 3