1. Four pairs of spermathecae in 4 - 7 segments.
2. One pair of ovaries attached at intersegmental septum of 14th and 15th segments.
3. Two pairs of testes in 10th and 11th segments.
4. Two pairs of accessory glands in 16 - 18 segments.
Two pairs of testes in 10th and 11th segments.
2. ear ossicles
3. tip of the nose
tip of the nose
1. alleviation of vitamin-A deficiency
2. pest resistance
3. herbicide tolerance
4. producing a petrol-like fuel from rice
alleviation of vitamin-A deficiency
1. Neurons regulate endocrine activity, but not vice versa
2. Endocrine glands regulate neural activity and nervous system regulates endocrine glands
3. Neither hormones control neural activity nor the neurons control endocrine activity
4. Endocrine glands regulate neural activity, but not vice versa
Neurons regulate endocrine activity, but not vice versa
2. Folic acid and cobalamine
4. Iron compounds
1. people get pollution-free air to breathe and more oxygen is available
2. atmospheric O2 level is less and hence more RBCs are needed to absorb the required amount of O2 to survive
3. there is more UV radiation which enhances RBC production
4. people eat more nutritive food, therefore more RBCs are formed
atmospheric O2 level is less and hence more RBCs are needed to absorb the required amount of O2 to survive
3. Nor epinephrine