In sea anemone, the symmetry is
radial
bilateral
spherical
absent
A.
radial
In radial symmetry, body is divided into similar halves by more than two planes passing through one main axis. Eg. Cnidarians or coelenterates such as Hydra, sea anemone, Aurelia, Obelia) are radially symmetrical animals with cell-tissue grade of body organization.
Which of the following is not a character of Chordata?
Dorsal tubular nerve cord
Pharyngeal gill slits
Presence of notochord
Presence of spinal cord
Malpighian tubµles are
excretory organs of insects
excretory organs of frog
respiratory organs of insects
endocrine glands of insects
The group of anamniota includes:
reptiles and birds
birds and mammals
fishes and amphibians
reptiles, and mammals
Which of the following cell type is capable of giving rise to other cell types in sponges ?
Thesocytes
Pinacocytes
Cnidocytes
Archaeocytes
