CBSE Class Notes Online – Classnotes123
CBSE Class Notes, Worksheets, Question Answers, Diagrams , Definitions , Diffrence between , Maths Concepts, Science Facts Online – Classnotes123
Double fertilization explained in details with the complete step by step process of double fertilization with neatly labeled diagram ,discovery and 6 important significance
What is Double Fertilization ? Read More
Fertilization Pollination is followed by Fertilization in Plants. Fertilization is the process of fusion of male germ cells with the female gametes. It gives rise to a zygote. As soon …
What is Fertilization Class 10 Read More
Agents of cross-pollination The two commonest agents of cross-pollination are insects and wind. But, some flowers are also pollinated by certain animals and birds, like squirrels, bats, etc., or even …
Agents of Cross-Pollination Read More
Define Pollination- The transfer of pollen grains from the anther of the stamen to the stigma of a flower is termed as Pollination.The pollen grains can be transferred by various …
What is Pollination Class 10 Read MoreReproduction is the ability of living organisms to produce new individuals similar to them. The basic event is the creation of DNA copy and additional cellular apparatus by the cells …
Why is DNA copying an essential part of the process of Reproduction? Read More
Spore formation is also a type of asexual reproduction. Spores have the ability to germinate and give rise to a new colony of daughter organisms. Spores are covered by thick …
How will an Organism be Benifitted , If it Reproduces Through Spores ? Read More
Vegetative Propagation It is a type of asexual plant reproduction in which, new plants are obtained from a part of the parent plant. Under favorable conditions, various parts of the …
Why is Vegetative Propagation Practiced for growing some types of Plants Read More
MENSTRUAL CYCLE The reproductive period of the human female continues from about the age of 13 years to 45-50 years. In females, ovaries release ovum or egg once every 28 …
Describe the Menstrual Cycle – Class 10 Read More
In females, ovaries release ovum or egg once every 28 days from the age of puberty. The uterus prepares itself every month to receive a fertilized egg. Thus, its lining …
Why does Menstruation occur- Class 10 Read More
METHODS OF CONTRACEPTION The common methods of contraception are as follows: 1. Hormonal Methods (Pills) : Various hormonal preparations come in the form of tablets or pills (commonly called contraceptive …
What are the Different Methods of Contraception – Class 10th Read More