Where are the nostril groves located in early dolphin embryos?

Question 5 options:

Absent, since dolphins don't have noses

Internally, to keep dolphins from drowning

At the front of the face as seen in humans and puppies

At the top of the head, fused into the blow hole

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10 March, 00:38

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Keenan Shepherd · Answer 1

At the front of the face as seen in humans and puppies.

The nostril then shifts upwards towards the blowhole position.

Where are the nostril groves located in early dolphin embryos?Question 5 options:Absent, since dolphins don't have nosesInternally, to keep dolphins from drowningAt the front of the face as seen in humans and puppiesAt the top of the head, fused into the blow hole