1. with small populations in world
2. which are likely to become endangered
3. which are in danger of extinction
4. None of the above
with small populations in world
1. Squamous cells
2. Cuboidal cells
3. Columnar cells
4. None of the above
Cuboidal cells
1. Union of male and female gametes
2. Path followed by sperm in egg after its entry
3. Union of male and female pronuclei
4. Turning of head of sperm by 180^@
Union of male and female pronuclei
1. Cockroach
2. Lizard
3. Frog
4. Fish
Lizard
1. Motility of sperm
2. Penetration of ovum by sperm
3. The fusion of pronuclei of the gametes
4. None of the above
Penetration of ovum by sperm
1. Downwards
2. Leftwards
3. Upwards
4. To the right side
Downwards
1. Ova
2. Sperms
3. Bile
4. Saliva
Sperms
1. 52
2. 24
3. 12
4. 6
6
1. Seminiferous tubule
2. Anterior lobe of the pituitary
3. Cells that lie between the seminiferous tubules
4. Spermatogonia
Cells that lie between the seminiferous tubules
1. Primary spermatocyte
2. Secondary spermatocyte
3. Spermatogonium
4. Primary germ cell
Primary spermatocyte