Many cnidarians have two distinct life stages called:
a. the gametophyte and the sporophyte.
b. the polyp and the medusa.
c. egg and adult.
d. egg and larva.
2007-04-30 06:26:32 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Biology
the polyp and the medusa
2007-04-30 06:31:20 · answer #1 · answered by m_canoy2002 2 · 1⤊ 0⤋
The polyp is a shape like a hydra. It is like a cylinder with the mouth at the top. Around the mouth are tentacles with which the animal catches food. The medusa is the jellyfish form. I looks kind of like an umbrella. See wikipedia (below)
2007-04-30 07:35:40 · answer #2 · answered by kt 7 · 0⤊ 0⤋
B, the polyp and the medusa. Incidentally the
name used for many years for this group is
Coelenterata, not Cnidaria. The changeover to
Cnidaria was prompted by the set of volumes by
Libby Hyman on invertebrates. Unfortunately,
she had little feel for nomenclature and made
this quite unnecessary and undesirable change
simply because it was the name used by the
first person who correctly removed some other
organisms from the Phylum Coelenterata. By
this criterion many names of phyla would be changed repeatedly, which just multiplies the
number of names one needs to keep track of
without any good reason.
2007-04-30 07:00:27 · answer #3 · answered by Anonymous · 0⤊ 0⤋
B_ polyp & medusa
I'm amazed i even remember that from high school marine biology. hahaha
2007-04-30 06:33:31 · answer #4 · answered by Anonymous · 0⤊ 0⤋
(b) the polyp & medusa
2007-04-30 06:49:11 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Soooooo true. Have a star & 10/10
2016-05-17 09:30:42 · answer #6 · answered by ? 3 · 0⤊ 0⤋