Reproduction in animals for class 10 by shailendra solanki

1. 1

3. 1. What is reproduction ?
2. Asexual Reproduction
3. Sexual Reproduction
4. Male Reproduction Organs
5. Female Reproduction Organs
6. Human Ovum (egg)
7. Sperms
8. Fertilization
9. Internal Fertilization
10. External Fertilization
11. Zygote
12. Viviparous Animals
13. Oviparous Animals

4.  Reproduction is the biological process by which new
individual organisms are produced.
 Reproduction is a fundamental feature of all known
life; each individual organism exists as the result of
reproduction.
 It is the process by which new organism are
generated. It is the mechanism of species
continuation.

5. (i) Asexual reproduction, and
(ii) Sexual reproduction.

6.  Asexual reproduction is a mode of
reproduction that does not involve the fusion
of the male and the female gamete. It
requires only one parent, and the offspring's
produced are exact copies of their parents.

8.  The reproduction in which the both male
reproductive organs and female
reproductive organs involved to give birth to
new individual is called sexual reproduction.

9.  The male reproductive
system produces sperm
cells and provides a
mechanism for delivering
them to the female's
body. Millions of sperms
produced by the testes.

11.  The female reproductive organs are of
ovaries, oviduct [fallopian tubes] and the
uterus.The ovary produces female gametes
called ova [eggs]. A single matured egg is
released into oviduct by on of the ovaries
every month. Uterus is the development of
the baby takes place. Like the sperm, an egg
is also a single cell.

12. FEMALE REPRODUCTIVE SYSTEM

14. Female Reproductive System

16. Sperm were first observed in 1677 by Antonie van
Leeuwenhoek using a microscope. The sperms are
produced by testes. Though sperms are very small
in size, each has head, a middle piece and a tail.
Each sperm is a single cell with all usual cell
components.

23.  The fertilization of an egg that take place
outside the body in a test tube or in any other
apparuties is known as in vitro fertilization.

30.  The stage of the embryo in which all the body
parts can be identified is called a foetus.
When the development of the foetus is
complete, the mother gives birth to the baby.

33.  The first trimester is the main period of organogenesis.
 The development of the body organs.
(a) 5 weeks. Limb buds, eyes, the
heart, the liver, and rudiments
of all other organs have started
to develop in the embryo, which
is only about 1 cm long.
(b) 14 weeks. Growth and
development of the offspring,
now called a fetus, continue
during the second trimester.
This fetus is about 6 cm long.
(c) 20 weeks. By the end of the
second trimester (at 24 weeks),
the fetus grows to about 30 cm
in length.

34. The Process of Birth of the baby is

35. Chick embryo 54 hours old
Most major organs have
formed
Formation of structures in embryo video

36.  The animal which give birth to young
ones are called viviparous animals.

37.  Those animals which lay eggs are called
oviparous animals.

38.  The transformation of the larva into
an adult through drastic changes is
called metamorphosis.

41.  In hydra a bud arises as an
outgrowth due to repeated cell
division at one specific place
 These buds develop into tiny
individuals
 When they fully mature, detach
from the parent body and become
new independent individuals