trezor.io
Rate this file (Rating : 5 / 5 with 1 votes)
animal photography
trezor.io

Animal Photography

The ecdysozoans also include the Nematoda or roundworms, perhaps the second largest animal phylum. Roundworms are typically microscopic, and occur in nearly every environment where there is water. A number are important parasites. Smaller phyla related to them are the Nematomorpha or horsehair worms, and the Kinorhyncha, Priapulida, and Loricifera. These groups have a reduced coelom, called a pseudocoelom.
The remaining two groups of protostomes are sometimes grouped together as the Spiralia, since in both embryos develop with spiral cleavage.
• Platyzoa
The Platyzoa include the phylum Platyhelminthes, the flatworms. These were originally considered some of the most primitive Bilateria, but it now appears they developed from more complex ancestors. A number of parasites are included in this group, such as the flukes and tapeworms. Flatworms are acoelomates, lacking a body cavity, as are their closest relatives, the microscopic Gastrotricha.

File information
Filename:127990.jpg
Album name:Fauna & Flora
Rating (1 votes):55555
Keywords:#animal #photography
Filesize:55 KiB
Date added:Apr 09, 2008
Dimensions:480 x 480 pixels
Displayed:40 times
URL:displayimage.php?pid=127990
Favorites:Add to Favorites