00:01
Looking at digestive structures.
00:03
Which animals have an esophagus, crop, gizzard and intestines? so a, birds and mammals.
00:10
B, insects and mammals.
00:12
C, flatworms and birds.
00:14
D, earthworms and birds.
00:15
Or b, sponges and nidarians.
00:18
Okay, so the esophagus, crop, gizzard and intestine.
00:23
Well, you should be familiar, an esophagus and an intestine.
00:27
The esophagus is for movement of food from the mouth to, in this case the crop and the crop is mixture with mucous to lubricate it.
00:39
And then it goes to the gizzard, which is for mechanical processing...