expand icon
book Zoology 8th Edition by Stephen Miller,John Harley cover

Zoology 8th Edition by Stephen Miller,John Harley

Edition 8ISBN: 978-0073028200
book Zoology 8th Edition by Stephen Miller,John Harley cover

Zoology 8th Edition by Stephen Miller,John Harley

Edition 8ISBN: 978-0073028200
Exercise 51
Among the flatworms, when a digestive tract is present, it has
A) a single opening, the mouth.
B) two openings, mouth and anus.
C) a single opening, the anus.
D) no external opening.
E) a nephridiopore opening.
Explanation
Verified
like image
like image
close menu
Zoology 8th Edition by Stephen Miller,John Harley
cross icon