0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
What characteristic is shared by cnidarians and flatworms?
a digestive system with a single opening
Are scorpions annelids flatworms mollusks arthropods cnidarians or echinoderm?
a scorpion is a Arthropods
What evolved first cnidarians or echinoderms?
I believe Echinoderms evolved first.
What does not belong to the phylum cnidaria jellyfish flatworm sea anemones corals?
Flatworms don't belong to cnidarians .They belong to Platyhelminthis . All others are cnidarians .
How do flatworms develop?
planarias
Of sponges cnidarians flatworms and roundworms which are most complex?
No clue, but here is a hint, look in the book!
Flatworms were one of the first to develop a?
alleles
What do flatworms have that sponges and cnidarians dont?
Flatowrms have muscle cells, they are a triploblastic phylum. They have endo, meso and ectoderm layersSponges are Parazoa and lack any true tissue at allCnidaria are diploblastic, having only endoderm and ectoderm
What are the main characteristics of sponges cnidarians and worms?
Sponges are invertebrate animals that usually have no body symmetry and never have tissues or organs. Cnidarians use stinging cells to capture food and defend themselves. Flatworms are flat and as soft as jelly. Unlike cnidarians or flatworms, roundworms have a digestive system that is like a tube, open at both ends. Earthworms and other segmented worms have bodies made up of many linked sections called segments.
How do cnidarians and flatworms get food?
They are filter feeders that draw water into their pores, filter out tiny sea invertebrates that are absorbed and digested, and expel the remaining water in a continuous basis.
An acoelomate is an animal that has?
Acoelomates are animals that do not have a body cavity filled with fluid between the digestive tract and the body wall. Creatures like jellyfish (cnidarians) and flatworms (Platyhelminthes) are all acoelomates
Is a flatworm an animal?
no. its a human being that did not develop properly and mutated into hundreds of flatworms. or it was sent down from mars.
