Question

Regarding position of heart :- 1. In Chordates : dorsal 2. In Non-chordates : ventral (if present).

Answer 1

(A) is the right answer. 

Chordates : Heart is ventral. Non-chordates : Heart is dorsal (if present).

Answer 2

Regarding position of heart :- 1. In Chordates : dorsal 2. In Non-chordates : ventral (if present).

Answer => in chordates => heart is ventral

In non chordates => heart is dorsal ( if present )