Fill in the blanks :

_______pigment enables us to see in the dark

Fill in the blanks :

The small lymphatic vessels present in the villi of the intestine are called_______.

3.

Fill in the blanks :

________is an illness which is characterized by fits or convulsions.

Fill in the blanks :

When the amount of CO₂ fixed in photosynthesis is equal to the amount of CO₂ evolved in respiration it is known as________.

Fill in the blanks :

When the pollen tube enters the embryo sac through the micropyle it is known as_________

Give the causative agents of each of the following :

Rabies

Give the causative agents of each of the following :

Tetanus

Give the causative agents of each of the following :

Ascariasis

Give the causative agents of each of the following :

Diphtheria

Give the causative agents of each of the following :

Chicken pox