Which of the following is are incorrect regarding differences between chordates and non-chordates? Chordates Non-chordates 1. Notochord present 1. Notochord absent. 2. Central nervous system is ventral,hollow and single 2. Central nervous system isdorsal, solid and double 3. Pharynx perforated by gill slits 3. Gill slits are absent 4. Heart is dorsal 4. Heart is ventral (if present) 5, A post-anal part (tail) is absent 5. Post-anal tail is present

AP EAMCET Medical 23 Sep 2020 Shift 2 Paper

Question : 72 of 160

Marks: +1, -0

Which of the following is are incorrect regarding differences between chordates and non-chordates?

Chordates	Non-chordates
1. Notochord present	1. Notochord absent.
2. Central nervous system is ventral,hollow and single	2. Central nervous system isdorsal, solid and double
3. Pharynx perforated by gill slits	3. Gill slits are absent
4. Heart is dorsal	4. Heart is ventral (if present)
5, A post-anal part (tail) is absent	5. Post-anal tail is present

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