How Do Organisms Reproduce (Class - X)
Which of the following organisms reproduce by binary fission?
a. Amoeba b. Paramecium c. Plasmodium d. Leishmania
Which of the following organisms does not reproduce by budding?
Which of the following statements is/are correct?
a. In fragmentation, a multicellular organism breaks up to form two or more daughter organisms. b. Fragmentation in organisms occurs upon maturity. c. Sea anemones reproduce by fragmentation.
The two types of organisms which can regenerate fully from their cut body parts are
a. spirogyra b. hydra c. planaria d. penicillium
Which of the following can be reproduced by vegetative propagation?
a. Bryophyllum b. Moss c. Money plant
Which of the following is a tissue culture technique for plant propagation in plants?
Which of the following parts of a flower make(s) the male gametes?
Which of the following statements is/are correct?
a. In layering, a shoot of a parent plant is bent until it can be covered by soil. b. Cutting is the method in which the cut stems of two different plants are joined in such a manner that the two stems join and grow as a single plant. c. The scion is the above ground part of one plant which is attached to the stock, which is the rooted part of the second plant.
Which of the following statements is/are correct?
a. Pistil is the female reproductive organ of a plant. b. It is made of three parts - stigma, style and ovary. c. There is only one ovule in an ovary.
Which of the following flowers are bisexual?
a. Hibiscus b. Watermelon c. Papaya d. Mustard
Which of the following statements is/are incorrect?
a. Male gamete in animals is called sperm. b. Female gamete in animals is called ova. c. The cell which is formed by the fusion of the male and female gametes is called embryo.
Which of the following statements is/are correct?
a. The part of a baby plant in seed which develops into shoot is called radicle. b. The part of a baby plant in seed which develops into root is called plumule. c. The part of seed which contains food for the baby plant is called cotyledon.
Which of the following statements is/are correct?
a. Testes make the male sex cells as well as the male sex hormone. b. The testes of a man lie in a small muscular pouch called the vas deferens outside the abdominal cavity. c. The sperms formed in testes come out and go into the tube called penis.
The fertilisation of egg or ovum by the sperm takes place in the
Match the following:
Column I | Column II |
a. Release of egg from ovary | 1. Menarche |
b. First occurrence of mensuration | 2. Menopause |
c. Permanent stoppage of mensuration | 3. Ovulation |