Available Answers

1. 1.

   Multiple Choice Questions.

   1. Fusion of two parental gametes is called
      1. sexual fusion
      2. fertilisation
      3. asexual reproduction
      4. none of these
   2. Which cell organelle controls all the functions of the cell?
      1. Mitochondria
      2. Ribesomes
      3. Nucleus
      4. Golgi bodies
   3. Which of the following is not a conservation category of wildlife?
      1. Extinct
      2. Endangered
      3. Endemic
      4. Vulnerable
   4. Production of sperm is called
      1. Spermatogenesis
      2. Spermagnesis
      3. Oogenesis
      4. None of the above
2. 2.

   Make the statements as True or False.

   1. Autosomes determine the sex and various sex-linked characteristics of organisms.
   2. Friction causes wastage of energy.
   3. Atmospheric pressure increases with height.
   4. The pressure exerted by liquids increases with depth.
3. 3.

   Which one is the greater sliding or rolling friction?
4. 4.

   What is the age of puberty in girls?
5. 5.

   What is the waxy layer that acts as waterproofing on a leaf called?
6. 6.

   What is the process that converts tadpole larvae into adult frog?