Question

E. Answer these questions.
List the events involved in sexual
reproduction
2. Where does the process of fertilisation in
human beings occur?
3. Name the organs of female reproductive
system.
4. What is implantation?

Answer 1

Answer:

fjudyksgysjwjywyjeuieukeyjekusykehjfhnhfnthrjhrrgfbbgrhefnhmstumumstsyistmwumarmtumtsnsky

mqitmaurnqutqu4eyrnneyn47tnbyeq4ummirmirkq4ynarumaururkyrkhnruqktakuthramhrutmqhsmjwm

Answer 2

Answer:

Explanation:

A) Some of the events involved in sexual reproduction are: Gametogenesis, Gamete Transfer and Fertilization!

1. Gametogenesis:

It involves the formation of haploid gametes from diploid gametogonia by meiosis in the gonads e.g., spermatogenesis in testis and oogenesis in ovary in animals

2. Gamete Transfer:

For fertilization (syngamy) gametes come together for fusion. Usually in most of organisms, male gamete is motile and female gamete is non-motile. However in many algae and fungi both the gametes can be motile. Water is required for the movements of male gametes in simple plants of algae, bryophytes and pteridophytes.

3. Fertilization (Syngamy):

It involves the fusion of haploid gametes (sperm and ovum) to form diploid (2N) zygote. Zygote undergoes further development by mitotic divisions to form diploid offspring. If there is no meiosis during gametogenesis, then the gametes will be diploid and individual produced will be tetraploid (4N), but when gametic meiosis is not followed by fertilization then the individual formed will be haploid.

B) Fertilization takes place in the fallopian tubes, which connect the ovaries to the uterus. Fertilization happens when a sperm cell successfully meets an egg cell in the fallopian tube

C) A female's internal reproductive organs are the vagina, uterus, fallopian tubes, and ovaries. The vagina is a muscular, hollow tube that extends from the vaginal opening to the uterus. Because it has muscular walls, the vagina can expand and contract

D) Implantation is when a fertilized egg, or blastocyst, has attached to the lining of the uterine wall. It marks the beginning of pregnancy.