Give reasons for the following : (a) Adrenal gland is known as the stress gland of the body. (b) Prenatal…
Give reasons for the following :
(a) Adrenal gland is known as the stress gland of the body.
(b) Prenatal sex determination is banned in India.
(c) Vegetative propagation is advantageous in some plants.
Solution
(a) Because adrenal gland secretes adrenaline hormone that enables the
animal body to face a scary situation.
(b) To prevent female foeticide.
(c) Plants raised by vegetative propagation can bear flowers and fruits
earlier than those produced from seeds /
Such methods also make possible the propagation of plants such as
banana, orange, rose and jasmine that have lost the capacity to
produce seeds /
All plants produced are genetically similar enough to the parent
plant to have all its characteristics.