Question 3 :
The production of offspring by the sexual or asexual process is known as:
Question 7 :
Which of the following is the part through vegetative propagation occur in a jasmine plant?
Question 11 :
<table class="table table-bordered"><tbody><tr><td><b> Name of plant</b></td><td><b> Vegetative parts from which plant grows</b></td></tr><tr><td> A) Money plant</td><td> 1) Root</td></tr><tr><td> B) Ginger</td><td> 2) Stem</td></tr><tr><td> C) Sweet potato<span>	</span></td><td> 3) Leaf</td></tr><tr><td> D) <i>Bryophyllum</i></td><td>4) Underground stem</td></tr></tbody></table>
Question 13 :
Which of the following are incorrectly matched?<br>(i) Vasectomy - Sterilization procedure in the female.<br>(ii) Emergency contraceptive - Morning after pills.<br>(iii) Copper - T - Inserted in the uterus that prevents Implantation of embryo.<br>(iv) Oral pills - Inserted under the skin that slowly release progesterone which prevents implantation.<br>(v) Diaphragm - A soft rubber cup that prevents sperms from entering uterus.<br>
Question 15 :
Fill in the blank:<br>The generation of variation is a fairly ________ process.
Question 19 :
Use of condom is a contraceptive method that falls under which of the following categories?
Question 21 :
During adolescence, the body of boys and girls undergoes certain changes. Given below are a few of those changes. Find which changes occur in boys:<br/><div>(a) Broad shoulders<div>(b) Wider chests</div><div>(c) Broadening of the hip region</div><div>(d) Development of muscles</div><div>(e) Development of mammary glands</div><div>(f) Growth of facial hair</div><div>(g) Acne and pimples on the face</div><div>(h) Development of sex organs</div><div>(i) High-pitched voice</div><div>(j) Growth of pubic hair<br/></div></div>
Question 22 :
Which one of the following methods requires two genetically variable individuals to produce the progeny?
Question 23 :
Organisms in population A, have no genetic variations, and organisms of population B, have genetic variations. Based on this information, choose the correct statement.
Question 24 :
Name the process in which thousands of plants can be raised within a limited time and space.
Question 25 :
<span>Sterilization techniques are generally fool-proof methods of contraception with the least side effects. Yet, this is the last option for the couples because:<br/></span><span>(i) It is almost irreversible<br/></span><span>(ii) of the misconception that it will reduce sexual urge/drive<br/></span><span>(iii) It is a surgical procedure<br/></span><span>(iv) of lack of sufficient facilities in many parts of the country.</span><div><span><br/></span>Choose the correct option.<br/></div>
Question 27 :
A narrow waistline, wide hip and oily skin are the secondary signs of puberty in:
Question 28 :
Consider the following statements and select the option which correctly identifies true (T) and false (F) ones.<br/>(i) Ovary ripens to form seed and ovule ripens to form fruit after fertilization.<br/>(ii) Seed dispersed through water usually develop floating ability in the form of spongy or fibrous outer coat as in coconut.<br/>(iii) Pollination occurs before fertilization.<br/>(iv) Cutting, layering, grafting and tissue culture are the natural methods of vegetative propagation .<br/> (i) (ii) (iii) (iv)
Question 30 :
A plant produced $50$ flowers. Ovary of each flower has $50$ ovules. How many fruits and seeds are produced by that plant respectively?