1. The study of soil conservators
2. Culture of plants in water
3. The study of plant ecology
4. None of the above
Culture of plants in water
1. Ectoderm
2. Mesoderm
3. Endoderm
4. Trophoectoderm
Endoderm
1. Potassium
2. Calcium
3. Magnesium
4. Sodium
Sodium
1. Trophoblast
2. Cephalic end of embryonic disc
3. Caudal end of embryonic disc
4. Ectoderm end of embryonic disc
Caudal end of embryonic disc
1. Nitrogen peroxide
2. Free nitrogen
3. Nitrate
4. None of the above
Nitrate
1. Chorion and allantois
2. Chorion and amnion
3. Amnion and allantois
4. Allantois and yolk sac
Chorion and amnion
1. Ectodermal
2. Mesodermal
3. Endodermal
4. Both (a) and (b)
Ectodermal
1. Ectodermal
2. Mesodermal
3. Endodermal
4. None of these
Endodermal
1. Calcium
2. Magnesium
3. Nitrogen
4. Iron
Nitrogen
1. Ectodermal
2. Mesodermal
3. Endodermal
4. None of these
Mesodermal