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How do Organisms Reproduce Test - 24

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How do Organisms Reproduce Test - 24
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  • Question 1
    1 / -0
    Rhizopus gets its nutrition:
    Solution
    Rhizopus (bread mould) is a saprophytic fungus, derives its nutrition from the moist bread it grows on.
    Option 'B" is the correct answer.
  • Question 2
    1 / -0
    Use of condom is a contraceptive method that falls under which of the following categories?
    Solution
    The use of condoms is a method of birth control. Condoms can be used by both males and females. 
    A male condom is made of a thin rubber sheet and is worn by the male partner over the penis. This stops sperm from reaching the vaginal canal by creating a barrier in between.
    So, the correct answer is option C.
  • Question 3
    1 / -0
    Regeneration occurs in:
    Solution
    a) Planaria when cut into pieces each piece regenerates into a complete organism. Cells at wound location proliferate and differentiate into new tissues and regenerate the missing parts of the piece of the cut planaria.
    b) Lizards have fracture planes that are spaced regularly down the length of the tail at which breaks can occur. This method of survival is used by the lizard to escape while the predator is focused on its moving tail.
    c) Starfishes have the ability to regenerate limbs and in some cases even entire bodies. 
    Thus the correct answer is option D
  • Question 4
    1 / -0
    Plants which has lost their capacity to produce seeds, reproduce by:
    Solution
    If the plants lose their capacity to produce seed, they will carry out reproduction through asexual means, through their vegetative parts like stem, leaf, branch, etc. The formation of new plants from detached vegetative parts is called vegetative propagation. The new plants produced by vegetative propagation are genetically identical to the parent plants.
    So the correct option is B.
  • Question 5
    1 / -0
    Prevention of pregnancy is called
    Solution
    Prevention of pregnancy is called contraception. It can be done in many ways, such as natural, barrier or chemical, hormonal.  In barrier method, a barrier, generally made of rubber is used to avoid the fertilization. It can be condoms, diaphragms, or vault. In hormonal or chemical methods, the female partner intake pills which contain combinations or hormones which either makes the uterus inhospitable for the sperms or it reduces the sperm motility.
    So, the correct answer is 'Contraception'.
  • Question 6
    1 / -0
    The region of female reproductive tract where fertilization occurs is:
    Solution
    • Fertilization is the process of fusion of male and female gametes to form the zygote. The process of fusion takes place in the fallopian tube/oviduct of the female reproductive tract. 
    • The egg released by the ovary travels to the fallopian tube and remains there for around 24 hours. 
    • The sperm traveling up to the fallopian tube can fertilize the egg while it is still present there.

    Thus, the correct answer is option D. 
  • Question 7
    1 / -0
    Which of the following statements can be related to puberty?
    Solution
    Puberty is observed in both girls and boys, it ends when an adolescent reaches reproductive maturity. The adolescent undergoes several physical, emotion and mental fluctuations due to hormonal changes.
    So, the correct answer is option D.
  • Question 8
    1 / -0
    Which among the following are the methods used to control population growth?
    Solution
    Condoms, Oral contraceptives, Cu-T are some of the methods used to check the rapid population growth.
    Condoms are used by both male and females.
    Oral contraceptives are being used by females to keep a gap between the babies.
    Cu-T is an intrauterine device used to avoid pregnancy by the females.
    So, the correct answer is option D.
  • Question 9
    1 / -0
    Which of these is not a part of female reproductive system?

  • Question 10
    1 / -0
    Ovules convert into ................. in the mature fruit.
    Solution
    After fertilization, each ovule develops into a seed. Each seed contains a tiny, undeveloped plant called an embryo. The ovary surrounding the ovules develops into a fruit that contains one or more seeds.

    So the correct answer is option A.
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