The pH of protolasm is
6.0
6.8
7.8
8.2
B.
6.8
The pH of protoplasm is 6.8.
Fertilization in earthworm is
cross fertilization
combined fertilization
self-fertilization
All of the above
In motor neuron the impulse following in which direction?
In two direction
In one drection
In all direction
None of the above
First heart sound is produced during closure of
auriculo-ventricular valves
eustachian valve
sinus valve
seminular valves
Muscular movements of alimentarey canal are known as
peristalsis
diastole
systole
muscles contraction