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Level 2 Worksheet: How Org. Reproduce?

Class: 10 Science Topic: Diagrams & Critical Reasoning Max. Questions: 30
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Section A: Diagram Based Questions
  1. Draw a labeled diagram of the Male Reproductive System. Mark: Urinary Bladder, Vas deferens, Testis, Ureter.
  2. Draw a labeled diagram of the Female Reproductive System. Mark: Ovary, Oviduct, Uterus, Cervix, Vagina.
  3. In a diagram of a flower, identify the parts responsible for:
    (a) Producing pollen.
    (b) Receiving pollen.
    (c) Becoming the fruit.
  4. Sketch the process of Binary Fission in Amoeba. (4 stages).
  5. Draw a diagram showing the germination of pollen on stigma. Mark 'Pollen tube' and 'Male germ cell'.
Section B: Scientific Reasoning
  1. Why is Variation beneficial to the species but not necessarily for the individual? (Survival in changing niche).
  2. Why does the lining of the uterus become thick and spongy every month?
  3. Why is the process of spore formation better than fragmentation for Rhizopus? (Large numbers + Protection by tough coat).
  4. Why are complex multicellular organisms not able to reproduce by simple regeneration? (Specialized tissues).
  5. Why is DNA copying an essential part of the process of reproduction? (Blueprint inheritance).
  6. Why do more complex organisms have sexual reproduction? (To create variation for evolution).
  7. Why is the use of a condom considered a better method of contraception than pills? (No side effects + STD protection).
  8. Why is the temperature of the scrotum lower than body temperature?
Section C: Differentiate & Compare
  1. Differentiate between Pollination and Fertilization.
  2. Differentiate between Menarche and Menopause.
  3. Compare Binary Fission (Amoeba) and Multiple Fission (Plasmodium).
  4. Differentiate between Unisexual and Bisexual flowers. Give examples.
  5. Compare the functions of the Testis and Ovary.