Improvement in Food Resources — Science STD 9 — Question

Minamata human disease is caused by pollution of water by:

1. Cadmium.
2. Lead.
3. Mercury.
4. Arsenic.

Short branched process coming out of a soma of neuron are:

Congenital diseases are those which:

1. Are deficiency diseases.
2. Are present from time of birth.
3. Are spread from man to man.
4. Occur during life time.

Leghorn and Aseel are related to:

Hybridisation refers to crossing between genetically ______ plants:

Solar radiation heat-up:

1. Land faster than the water bodies.
2. Land slower than the water bodies.
3. Equally both land and water bodies.
4. Neither land nor water bodies.

Assertion: Cells vary greatly in their shape.
Reason: The shape of cell does not depend on the function they perform.

Which of the following is the main difference between onion peel cells and human cheek cells?

Dwarfness in cereals is a desirable agronomic trait because:

Nasal and genital tracts are lined by:

1. Simple columnar.
2. Stratified columnar epithelium.
3. Pseudostratified epithelium.
4. Stratified cuboidal epithelium.