100 DAYS ACTION PLAN - MARCH 2026
UNIT 3 – HOW DO ORGANISMS REPRODUCE?
1 Marks Questions: Level 1
21. When planaria was cut into two pieces, it developed into two individuals. This process is called...
[Image of regeneration in planaria]
Regeneration.
22. If all the organisms stop reproduction, what happens?
• No new organisms will be formed.
• The species will eventually become extinct/disappear.
• The species will eventually become extinct/disappear.
23. Expand DNA
Deoxyribo Nucleic Acid.
24. Expand HIV
Human Immunodeficiency Virus.
25. Expand AIDS
Acquired Immuno Deficiency Syndrome.
26. Anther and filament are parts of...
[Image of the structure of a flower showing stamen and pistil]
Stamen.
27. Pistil has three parts namely stigma, ............ and ovary.
Style.
28. Which part of the pistil develops into a seed?
Ovule.
29. Name the part of the pistil which gradually grows to form the fruit.
Ovary.
30. Name the process in which a seed with an embryo develops into a seedling.
[Image of seed germination stages]
Germination.
32. What is fertilization?
Fusion of male and female gametes to form a zygote.
33. Which hormone is secreted by Testes?
Testosterone.
36. In which reproductive system do you find seminal vesicles?
[Image of the human male reproductive system]
In the male reproductive system.
37. The special tissue which helps the embryo to get nutrition from the mother's blood is called?
[Image of the placenta and umbilical cord]
Placenta.
38. Tubectomy : Fallopian Tube :: ................ : Vas deferens.
Vasectomy.
40. ............ is a contraceptive method used in females by placing it in uterus.
IUCD / Copper-T.
44. Identify the parts of a seed shown in the plan book diagram.
A – Plumule, B – Radicle.
48. Whether the statement "Amoeba is immortal" is right or wrong? Justify.
Right. Amoeba does not undergo natural death from old age because the parent cell divides into two new daughter cells during binary fission, continuing the life cycle.
55. The part in which spores are produced is called _______.
Sporangium.
59. The term callus is used in which process?
Tissue culture.