Question 2 :
Which among the following hormone initiate development of secondary sexual characters in female?

Question 3 :
Growth in the first 10 - 13 years of age is controlled by

Question 6 :
The first menstrual flow begins at puberty and is termed as menopause.

Question 7 :
At the time of puberty, there is a rapid change in voice in males than females. This is because

Question 11 :
Withdrawal of which of the following hormones is the immediate cause of menstruation?

Question 14 :
Unscramble the underlined words in the following sentences<br/>The reproductive life of a woman lasts from <u>hacreemn</u> to <u>spauoemen.</u><br/>

Question 15 :
The process of releasing of sperm by male organism&#160;during copulation is called as

Question 16 :
In girls, the muscles of the body grow more prominently than in the boys.

Question 21 :
Salma had a very soft and smooth skin during her childhood. As she entered adolescence, she developed pimples on her face. The skin specialist advised her to wash her face at regular intervals. Can you explain the reasons for the appearance ofpimples on her face?<br>

Question 23 :
Prabhani Kranti is<br>I) Okra variety resistant to shoot and fruit borer<br>II) Bhindi resistant to yellow mosaic virus<br>III) A wild varity of bhindi<br>IV) Produced by sexual hybridization

Question 25 :
The pumping capacity of heart in 70 years old person as compared to 30 years old person is<br>

Question 26 :
Assertion: During fertilization only head of spermatozoa enters egg. Reason: If several spermatozoa hit the egg at same time, all can enter the egg.

Question 28 :
Upon fertilization while ovule develops into seed. Which structure develop from a carpel?

Question 29 :
Match the vegetative propagules listed in Column-I with the plants given under Column-II; choose the appropriate option from the given choices.<br><table class="wysiwyg-table"><tbody><tr><td><b>Column-I</b></td><td><b>Column-II</b></td></tr><tr><td>$A$. Rhizome</td><td>$p$. Agave</td></tr><tr><td>$B$. Offset</td><td>$q$. Bryophyllum</td></tr><tr><td>$C$. Sucker</td><td>$r$. Ginger</td></tr><tr><td>$D$. Leaf Buds</td><td>$s$. Chrysanthemum</td></tr><tr><td></td><td>$t$. Eichhornia</td></tr></tbody></table>

Question 30 :
Generally, girls have a ............. voice whereas&#160;the voice in boys is

Question 31 :
Based on cellular mechanisms there are two major types of regeneration found in the animals. Which one of the following is the correct example of the type mentioned?

Question 32 :
The structure meant for the nourishment of developing embryo in case of plants is

Question 33 :
Read the statements given below and determine the correct statements.<br/>(i) Seeds require moisture for germination.<br/>(ii) Plants can absorb nutrients mostly in dissolved form.<br/>(iii) Irrigation protects crops from both frost and hot air currents.<br/>(iv) Irrigation improves soil texture.<br/>Choose the combination of statements which indicate the need to irrigate crops.<br/>

Question 35 :
During adolescence, an adult gains .......... in height and .......... in weight.