CBSE Class 7 Reproduction in Plants NCERT Solutions

1. Fill in the blanks:
(a) Production of new individual from the vegetative parts of parent is called vegetative propagation .
(b) A flower may have either male or female reproductive parts. Such flower is called unisexual flowers .

CLass 7 Waste Water Story NCERT Solutions

1. Fill in the blanks:
(a) Cleaning of water is process of removing contaminants .
(b) Wastewater released by houses is called sewage .
(c) Dried dung is used as manure.
(d) Drains get blocked by plastic and sludge .

Class 7 Science Transportation In Plants and Animals NCERT Solutions

NCERT Solutions for Transportation in Plants and Animals

Ans.2) (i) (b) (ii) (d) (iii) (a) (iv) (c)

How do Organisms Reproduce Class 10 Ncert Solutions

NCERT Solutions How do Organisms Reproduce

1.What is the importance of DNA copying in reprod uction?
Ans.DNA contains information for the inheritance of features from parents to next generation. DNA presents in nucleus of cells are th e information source for making protein. If information is different, different pro tein will be made that lead to altered body design.

2.Why is variation beneficial to the species but not necessarily for the individual?
Ans.Variations are useful for the survival of speci es in changed environment situations. If a population of reproducing organism were suited to a particular niche and if the niche is drastically altered the population could b e wiped out. However, some variations are present some species will survive. T hus, variation is useful to species but not the individual.

Microorganisms Friends and Foe Class 8 CBSE Ncert Solutions

1. Fill in the blanks . 
a. Microorganisms can be seen with the help of a microscope .
b. Blue green algae fix nitrogen directly from air to enhance fertility of soil.
 c. Alcohol is produced with the help of yeast .
d. Cholera is caused by bacteria

CELL - STRUCTURE AND FUNCTIONS Class 8 CBSE NCERT Solutions

NCERT Book Solutions of Cell Structure and Functions

1. Indicate whether the following statements are True or False.
a. Unicellular organisms have one celled body. True
b. Muscle cells are branched. False
 c. The basic living unit of an organism is an organ. False
d. Amoeba has irregular shape. True

Life Processes CBSE Class 10 NCERT Solutions

Here are the NCERT Solutions of Chapter 6 Life Processes

Page No. 95

Q1.Why is diffusion insufficient to meet the oxygen requirements of multicellular organisms like humans? 

Ans.As in multicellular organisms, all the cells are not in direct contact with environment,
simple diffusion does not meet the requirement of all the body cells.   

Q2.What criteria do we use to decide whether something is alive?

Ans.All  the  living  organism  must  have  movement  at  molecular  levels  along  with
respiration  and  other  life  process  like  nutrition, respiration,  transportation  and
excretion to be called alive.

Tissues NCERT Question and Answers Class 9 Chapter 6

Here are NCERT book question and answers of Class 9 Science Chapter 6

Tissues Question and Answers.

page no 69

Q1. What is a Tissue?
Ans.A tissue is a group of cells having similar structure, performing identical function.

Q2.What is the utility of tissues in multi-cellular organisms?
Ans.In multi-cellular organisms there is division of labour.as cells become specialised to perform specific function for e.g muscle cells are specialised  for contraction and relaxation to cause movements.