Body cavity of adult Ascaris is :
haemocoel
amphicoel
pseudocoel
schizocoel
C.
pseudocoel
Body cavity of Ascaris is called pseudocoel. It is the space between body wall and the alimentary canal which is not lined by mesoderm.
Haemocoel is the primary body cavity of most invertebrates, containing circulatory fluid.
Amphicoel or amphicoelous consists of both anterior and posterior surfaces of the centrum concave.
Schizocoel is a coelom present in the body cavity lying between the digestive tract and the musculature of the body wall.
Which of the following is not found in Hydra ?
Epithelio-muscular cells
Cnidocyte
Choanocyte
Nerve cells
Which of the following structure in Pheretima posthuma plays the role of the liver of vertebrates ?
Calciferous glands
Gland cells
Chloragogen cells
Cliteller cells
Glomerular filtrate is
blood minus blood corpuscles and plasma protein
blood minus corpuscles
mixture of water, ammonia and corpuscles
urine
A condition in which body's internal environment remains relatively constant within limits is called :
homeostasis
hemostasis
hematoma
haemopoiesis
The parasphenoid bone in frog forms :
base of cranium
floor of cranium
dorsal side of cranium
dorsolateral side of cranium
