Question 1 :
Name the hormone that is released by testes at the onset of puberty.

Question 4 :
Indian gooseberry (amla) are not good for adolescents. TRUE or FALSE?

Question 5 :
For the metamorphosis of tadpoles which of the following elements must be available in water?

Question 6 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d0e5f59b460d7261f384.jpg' /> The above chart gives the average rate of growth in height of boys and girls with age. The figures in columns 2 and 3, give the percentage of the height a person has reached at the age given in column 1.What is the probable % full height of a girl, by the age 11?

Question 7 :
State true or false. Hormone reaches target site through blood stream.

Question 8 :
What is the term used for chemical secretions of endocrine glands responsible for changes taking place in the body?

Question 10 :
Give a suitable word for the following statement. It marks the beginning of reproductive period.

Question 11 :
What is the term used for secretions of endocrine glands responsible for changes taking place in the body?

Question 13 :
The rate of growth in height varies in different individuals. TRUE or FALSE?

Question 16 :
Give a suitable word for the following statement. Name of a gland which transports secretions through ducts.

Question 18 :
All parts of the body grow at the same rate. TRUE or FALSE?

Question 20 :
The unfertilised egg always has one X chromosome. TRUE or FALSE?

Question 21 :
Give a suitable word for the following statement. Chemicals which control changes at adolescence stage.

Question 23 :
Sex of the unborn child depends on whether the zygote has XX or XY chromosomes. TRUE or FALSE?

Question 24 :
Release of sex hormones is under the control of a hormone secreted from the __________.

Question 26 :
Out of the following, which is the correct match for Protruding voice box in boys

Question 27 :
Bacterial or other infection may occur if we don't wash our body properly. TRUE or FALSE?

Question 28 :
The change in the body parts indicate that one is no longer a child but on the way to becoming an adult. TRUE or FALSE?

Question 30 :
State true or false. Sex hormones are chemical substances produced by sex organs.

Question 31 :
Out of the following, which is the correct match for Male hormone

Question 33 :
Hormones are secretions of endocrine glands which pour them directly into the ______.

Question 34 :
State true or false. Menstruation is the process of the shedding of the uterine lining on a regular monthly basis.

Question 37 :
Name the hormone which would be released during the following situations: growth of a child to adult.