Help with Phylums.?

Question

If you know anything about Phylums (Biology) I need to know the...
a. digestive system
b. circulatory system
c. excretory system
d. nervous system
e. repiratory system
f. reproductive system

for the following...

Porifera(Sponges)
Cnidaria(Jellyfish & Hydra)
Platyhelminthes(Flatworms)
Nematoda(Roundworms)
Mollusca(Clams & Shells)
Annelida(Segmented Worms)

If you know anything about any of this....post it!!! IT ALL HELPS....i doubt anyone does though...well...thanks anyways..

Answer 1

Well first off all animals have a reproductive system. We are all sexual reproduces (with some rare rare exceptions)

The rest i am reciting from memory, all this was covered in my bio lecture last year. My memory may be faulty.

All except porifera have "a"
All except porifera and cnidaria have a "b" if you include the gastrovascular system as a "b"
All have some sort of a "c"
All except porifera and cnidaria have "d"
"e" i can't give you a definite answer but i do believe Nematodes, Mollusks and Annelids have it.
"f" was my first answer.

Answer 2

I guess reading about this in your textbook is just too hard. Phylum is the term for the largest generally accepted groupings of animals and other living things with certain evolutionary traits. The hierarchy in biology, from largest to smallest is: Life Domain Kingdom Phylum Class Order Family Genus Species Chordate is the term for "spinal chord". Chordates (phylum Chordata) are a group of animals that includes the vertebrates (with several closely related invertebrates). They have (at some time in their life cycle: - a notochord - a hollow dorsal nerve cord - pharyngeal slits - an endostyle - a post-anal tail

Answer 3

I know the information is all in one place. That place would be a biology textbook. The only way that i can see that you would need that much information on that many seemingly obscure topics, is that you are taking a biology class, and so would have a biology textbook. I remember going through a similar list during my last biology class. So, instead of listing all that information, I'm just going to tell you to look in your textbook for the answers that should be listed there. If they aren't there your teacher needs to look at getting a new textbook or you can try looking in a library for the textbook called "Biology" and published by Campbell-Reece, Sixth Edition. This is the textbook that I used, so i'm pretty sure the information is all in there. Good luck on your search.