Organisms that have digestive systems characterized by a single opening through which both food and wastes pass include which of the following? Check all that apply.

A platyhelminthes
B annelids
C echinoderms
D nematodes
E cnidaria

Question

Organisms that have digestive systems characterized by a single opening through which both food and wastes pass include which of the following?  Check all that apply.
 
A   platyhelminthes
 B annelids
 C echinoderms
 D nematodes
 E cnidaria

jagr2713 · Answer

what do you think @Stephanie2018

anonymous · Answer

what is it

jagr2713 · Answer

Close but no which one of those answer choices you picked you think is wrong @Stephanie2018

anonymous · Answer

whats the correct answer then

jagr2713 · Answer

Nopecnidaria have a single orifice and body cavity that are used for digestion and respiration

jagr2713 · Answer

Try again

jagr2713 · Answer

Sorry cant just give the answer :D

anonymous · Answer

I still have more quesions

jagr2713 · Answer

C is not correct b.c Echinoderms possess a simple digestive system which varies according to the animal's diet. Starfish are mostly carnivorous and have a mouth, oesophagus, two-part stomach, intestine and rectum,

jagr2713 · Answer

From the answer choice you said A B E, we eliminated B sooo whats the answer

jagr2713 · Answer

D is not correct nematodes have tubular digestive systems with openings at both ends.

jagr2713 · Answer

Correct

jagr2713 · Answer

See you got it :D

anonymous · Answer

Thanks and I did