Which of the following cell type is capable of giving rise to other cell types in sponges ?
Thesocytes
Pinacocytes
Cnidocytes
Archaeocytes
Malpighian tubµles are
excretory organs of insects
excretory organs of frog
respiratory organs of insects
endocrine glands of insects
The characteristic larva of phylum Coelenterata is
planula
cysticercus
rhabditiform
wriggler
A.
planula
The characteritics larva of Phylum- Coelenterata is Planula (Obelia) and Ephyra (Aurelia).
Cysticercus is the third larval stage seen in Taenia besides oncosphere, hexacanth (other two larval stages).
Rhabditiform is the first larval stage in Ascaris, which is formed within 10-14 days.
Wriggler is the larva of mosquito.
Which of the following is not a character of Chordata?
Dorsal tubular nerve cord
Pharyngeal gill slits
Presence of notochord
Presence of spinal cord
The group of anamniota includes:
reptiles and birds
birds and mammals
fishes and amphibians
reptiles, and mammals