Question

(i) Describe 2 methods of asexual reproduction. Give
examples.
(ii) Name the process and the organ which help in removing
the following wastes from the body.
(a) Carbon dioxide
(b) Undigested food
(c) Urine

Answer 1

Answer:

i) methods of asexual reproduction in plants:

Layering: a method of plant propagation in which a bent stem is covered with soil in order to generate new roots

Grafting: process of attaching part of a stem from one plant onto the root of another plant

Micropropagation: practice of rapidly multiplying plant material to produce a large number of progeny plants using plant tissue culture methods

Cutting: placing part of a stem containing nodes or internodes in water or moist soil in order to produce new plants

ii)

a) Lungs

b) Large intestine ( through anus the undigested food is passed out)

c) Kidneys ( through urethra urine is passed out)

Answer 2

Heya!

Good Question!

Required Question - Answer :

(i) - Describe 2 methods of asexual reproduction. Give examples .

Ans - Asexual reproduction means the reproduction which involve only a single parent togo through the process of reproduction .

Two methods of asexual reproduction :

● Binary Fission - Binary fission occurs in unicellular organisms such as bacteria , Amoeba & Paramecium . First , the nucleus of the parent cell divides into two daughter nuclei . This is followed by division of parent cell . Each half receives one daughter nucleus and forms a daughter organisms . Thus , two daughter organisms are formed from one organism . Refer attachment for diagram!

● Budding - In budding , a new organism is formed as an outgrowth from the parent body . In Hydra , a small bulge appears from the lower part of the body . This grows into a bud , detaches from the parent body and develops into a young Hydra . Yeast also go through budding.

Refer the attachment for diagram!

(ii) Name the process and the organ which help in removing the following wastes from the body .

(a) Carbon dioxide

(b) Undigested food

(c) Urine

Ans - (a) Carbon dioxide - Process is Exhalisation and the organ involved in this is Lungs .

(b) Undigested food - Process is

Egestion and the organ involved is large Intestine .

(c) Urine - Process is Excretion and the organ involved is kidney .

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