How do Organisms Reproduce? — Science STD 10 — Question

Mendel selected garden peas as his experimental material because
i. Pea plants possess a number of well defined contrasting characters.
ii. Pea plants contain unisexual flowers.
iii. Pea plants have a short life cycle.
iv. Pea plants produce many seeds in one generation.

Which of the following can damage optic nerve leading to blindness, if taken internally?

An object is placed f and 2f of a convex lens. Which of the following statements correctly describes its image

One of the following is not required in the formation of biogas in a biogas plant. This is :

Plants like banana, rose, jasmine, orange have lost the capacity to produce :

The lamps in a house hold circuit are connected in parallel because :

A doctor advised a person to take injection of insulin because :

The use of one of the following will pollute the environment. This one is :

Involuntary actions in the body are controlled by :