Question

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3. What causes pregnancy? How long does it last in humans?
4. What is asexual reproduction? Explain in short.
5. What is metamorphosis?
6. Draw the life cycle of butterfly.
Long Answer Type Questions
1. Explain the development of embryo in humans.
2. What is fertilisation? What are its types? What is its significance?
3. Explain the process of binary fission with diagram.
4. Explain the life cycle of a frog with diagram.
HOTS Questions
1. Why are frogs and toads often seen moving to ponds during rai
2. How do sperm find their way, in case of external fertilisation?​

Answer 1

Answer:

no 4.-Asexual reproduction is a type of reproduction by which offspring arise from a single organism, and inherit the genes of that parent only; it does not involve the fusion of gametes, and almost never changes the number of chromosomes.