Question

Echinoderms have a(n)
segmented body.
cephalothorax.
exoskeleton.
endoskeleton.

Answer 1

@readergirl12

Answer 2

i think it is A

Answer 3

Okay so Echinoderms are from the phylum Echinodermata..It's basically a bunch of marine animals

Answer 4

And what do all marine animals have in common? c:

Answer 5

An exoskeleton.. :D

Answer 6

ok thanks i have two more

Answer 7

K. :P

Answer 8

All chordates in the subphylum Urochordata have

vertebral columns.
lungs.
gill slits.
none of the above

i believe it is b

Answer 9

The slits are supported by gill arches, which have also been highly modified in various groups of vertebrates. Lastly, all chordates have a post-anal tail, or extension of the notochord and nerve cord past the anus. Source: Google. xDDD

Answer 10

so not be then

Answer 11

Nope c :3

Answer 12

ok

Answer 13

Lancelets take in nutrients by

hunting.
filter feeding.
photosynthesis.
none of the above

Answer 14

i am going back and forth between c and b

Answer 15

It's b..Think Not sure though

Answer 16

ok

Answer 17

thanks agian

Answer 18

Np. c:

Answer 19

ok heres one i am stuck on so i know mammals have four chambered haerts do anfibians

Answer 20

never mind figured it out they have three chambered hearts

Answer 21

Okie cx