Medha cut a celery plant into two pieces. She placed the lower part of the cut celery in a jar of water. The pictures show what Medha observed after a week.
What can Medha conclude from her activity?
Important Questions on How do Organisms Reproduce?
Medha cut a celery plant into two pieces. She placed the lower part of the cut celery in a jar of water. The pictures show what Medha observed after a week.
Scientists grow new plants from groups of cells in laboratories. What is the technique known as?
The table lists the development of few characteristics in the human body.
| Characteristics |
| Growth of thick hair in the armpits of both males and females |
| Cracking of voice in males |
| Development of breasts in females |
At which stage of human development do the above characteristics appear?
The table lists the development of few characteristics in the human body.
| Characteristics |
| Growth of thick hair in the armpits of both males and females |
| Cracking of voice in males |
| Development of breasts in females |
Which of these statements is true for the characteristics listed in the table above?
The diagram shows the reproductive system of a human female. 1, 2, 3 and 4 are four different parts of the system.
Fertilisation is the union of a sperm with a mature egg. In which part of the female reproductive system does fertilisation take place?
The diagram below represents the male human reproductive system.
Identify the part that is responsible for the secretion of testosterone.
Is the above statement true or false? Justify your answer.
