Diatoms stay afloat due to_____.

1. 1. Stored lpids
   2. Flagella
   3. Pseudopodia
   4. None of these

Sweat glands occur in greatest number in the skin of the_____.

1. 1. Armpits
   2. Forehead
   3. Back
   4. Palm of hand

It is possible to date the rocks by comparing the amount of specific radioactive isotopes they contain. Which of the statement is correct in this respect?

1. 1. Older sediment layers have equal amount of these radioactive isotopes as that of the young ones
   2. Older sediment layers have greater amount of these radioactive isotopes as that of the young ones
   3. Older sediment layers did not have these radioactive isotopes
   4. Older sediment layers have less amount of these radioactive isotopes as that of the young ones

More than _____compounds of tar of tobacco smoke are involved to cause cancer.

1. 1. 10
   2. 15
   3. 20
   4. 25

About _____% of photosynthesis is carried by terrestrial plants, while rest occurs in ocean, lakes, and ponds?

1. 1. 0.2
   2. 0.3
   3. 0.1
   4. 0.4

Corolla and calyx collectively termed as_____.

1. 1. Perianth
   2. Complete flower
   3. Hermaphrodite
   4. Sexual whorls

Who discovered the bacteria causing tuberculosis and also developed various techniques of media preparation and maintenance of pure culture_____.

1. 1. Leeuwenhoek
   2. Robert Koch
   3. Louis Pasteur
   4. Alexander Fleming

At which stage in the life cycle of Rhizopus meiosis takes place?

1. 1. Formation of sporangiophore via germination of zygospore
   2. Formation of spores in sporangia
   3. Fusion of two hyphae
   4. Formation of Zygote by fusion of gametangia

Which of the following is largest part of brain?

1. 1. Cerebellum
   2. Cerebrum
   3. Medulla oblongata
   4. Thalamus

Which of the following group represent pathological fungi_____.

1. 1. Mushrooms morels and truffles
   2. Penicillium
   3. Rusts smuts and molds
   4. None of these