Improvement in Food Resources — Science STD 9 — Question

Describe various causes of water pollution.

Father of histology is:

1. Malpighi
2. Bichat
3. Mayer
4. None of them

The place for keeping and studying dry plants is called:

1. Arboreum
2. Vasculum
3. Herbarium
4. Museum

Nodules with nitrogen-fixing bacteria are present in:

1. Mustard
2. Wheat
3. Gram
4. Cotton

Which is the following is known as “physical basis of life”?

1. Gene.
2. Protoplasm.
3. Nucleolus.
4. Mitochondria.

Health deals with:

1. Social well being.
2. Physical fitness.
3. Mental fitness.
4. All the above.

Which of the following classes has largest number of animals?

1. Mammals.
2. Pisces.
3. Insect.
4. Reptilian.

The excretory organs of Annelida are:

1. Nephridia.
2. Statocysts.
3. Archeocytes.
4. None of the above.