In all plants the major sites of phosynthesis are_____.

1. 1. Stems
   2. Leaves respire and utilize O2 and release CO2.
   3. Roots
   4. Branches

Which of the following is an example of the living member of Psilopsida_____.

1. 1. Rhynia
   2. Psilotum
   3. Psilophyton
   4. Cooksonia

Production of pyrogens is a _____phenomenon?

1. 1. Destructive
   2. Protective
   3. Constructive
   4. Aggressive

Carrot is a source of_____.

1. 1. Vitamin B
   2. Vitamin A
   3. Vitamin C
   4. Vitamin D

So far over_____number of species of animals are known?

1. 1. 2 Million
   2. 3 Million
   3. 1 Million
   4. 2 Million

Which disease can be controlled by vaccination?

1. 1. Cancer
   2. Diabetes
   3. Measles
   4. Heart attack

Most of the marine invertebrates are_____.

1. 1. Osmoconformers
   2. Osmoregulators
   3. Both depend upon the concentration of sea water
   4. All of these

Sapwood is formed from_____.

1. 1. Primary xylem
   2. Primary phloem
   3. Secondary phloem
   4. Secondary xylem

Which of the following are motile zooids in cnidarians?

1. 1. Medusae
   2. Polyps
   3. Both of these
   4. All of these

The property of water due to which it works as a temperature stabilizer and hence protect living organisms from sudden thermal changes is_____.

1. 1. High specific heat capacity
   2. High specific heat of vaporization
   3. Its Dipole nature
   4. Its liquid state