Cellular organelles related with H2O2 are_____.

1. 1. Lysosomes
   2. Glyoxisomes
   3. Ribosomes
   4. Peroxisomes

Melanin pigment in cockroach is found in_____.

1. 1. Endocuticle
   2. Epicuticle
   3. Exocuticle
   4. None of these

Sporangia of which of the following tracheopytes develop singly on the upper side of sporophylls which may or may not be arranged to form strobili_____.

1. 1. Lycopsida
   2. Psilopsida
   3. Prteropsida
   4. Sphenopsida

Steroids, a biologically active organic compound, are derived from _____.

1. 1. Carbohydrates
   2. Hormones
   3. Chemicals
   4. Cholesterol

Which character differentiates living things from non-living organisms_____.

1. 1. They are highly organized and complex made of one or more cells and contain genetic material
   2. They live in the same ecosystem.
   3. They are acted upon by the same environment
   4. Both a and b

Lock and Key model was proposed by_____.

1. 1. Robin Williams
   2. Koshland
   3. Emil Fischer
   4. Rudolph Virchow

Approximately _____species of bacteria are known to cause diseases in humans.

1. 1. 50
   2. 100
   3. 150
   4. 200

Pinus Taxus and Picea belong to _____.

1. 1. Gymnosperms
   2. Spheospsida
   3. Filicineae
   4. Angiosperms

The biggest group of invertebrates is_____.

1. 1. Worms
   2. Jelly fish
   3. Insects
   4. All of these

The study of fossils is called?

1. 1. Palaeontology
   2. Environmental Biology
   3. Historical biology
   4. Social biology