Question 1 :
A bacterial cell divides in every one minute. If it takes one hour to fill the whole cup, then to fill half cup, it will require

Question 5 :
State whether the following statements are true or false.<br>Methanogens are among the most recently evolved monerans.

Question 7 :
Scientific study of diversity of organisms and their evolutionary relationshipd is called&#160;

Question 8 :
Assertion: Ernst Haeckal developed binomial system of nomenclature. Reason: Vernacular names are chosen for nomenclature.

Question 11 :
For declaration of new species of higher plants what characters are used?

Question 13 :
Assertion: Systematics is branch of biology that deals with classification of organisms. Reason: Aim of classification is to group the organisms in orderly manner.

Question 17 :
Assertion: Spermatangium of red algae bears trichogyne Reason: Trichogyne helps in reproduction.

Question 18 :
Assertion: Algae and fungi are classified as thallophytes. Reason: They both are autotrophs

Question 23 :
Consider following features<br>(a) Organ system level of organisation<br>(b) Bilateral symmetry<br>(c) True coelomates with segmentation of body<br>Select the correct option of animal groups which possess all the above characteristic's.<br>

Question 25 :
The body plan in which the alimentary canal has a single opening is known as ..............

Question 27 :
Polyps and medusae are similar in which one of the following context?&#160;

Question 29 :
Given are some difference between an underground stem and a root. Select the option that identifies the incorrect pair of differences.<br/><table class="wysiwyg-table"><tbody><tr><td></td><td><b>Underground stem</b></td><td><b>Root</b></td></tr><tr><td>(i)</td><td>It is differentiated into nodes and internodes</td><td>it is not differentiated in to nodes and internodes.</td></tr><tr><td>(ii)</td><td>Scale leaves are present at the nodes.</td><td>Scale leaves are absent in&#160;roots.</td></tr><tr><td>(iii)</td><td>Axillary buds are present in the axil of scale leaves.</td><td>Axillary buds are present at root tips.</td></tr><tr><td>(iv)</td><td>Branches arise exogenously.</td><td>Branches arise endogenously.</td></tr><tr><td>(v)</td><td>Flowers and fruits absent<br/></td><td>Flowers and fruits&#160;are absent.</td></tr><tr><td>(vi)</td><td>These usually perform the function of food storage.</td><td>These usually perform the function of food storage.</td></tr></tbody></table>

Question 30 :
Which of the following is a correct description of neither a prokaryote nor a eukaryote but of a viroid?

Question 31 :
Based on his own observation as well as those of others, in 1838, Schwann made a tentative statement that all living things are made of cell. When first suggested in 1838, this statement was

Question 32 :
The concept of &#34;Omnis cellula-e cellula&#34; regarding cell division was first proposed by

Question 34 :
Match column I with column II and select the correct answer using the codes given below:<br/>&#160; &#160; &#160; &#160; &#160; &#160;Column I &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160;Column II<br/>(A) <i>Amoeba</i>, <i>Paramoecium &#160; &#160; &#160; &#160; &#160;</i>(p) Lysosomes<br/>&#160; &#160; &#160;<i>Chlamydomonas</i>&#160;<br/>(B) Protoplasm &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160;(q) Unicellular organisms<br/>(C) Suicide bags of a cell &#160; &#160; &#160; &#160; &#160; &#160; &#160;(r) Purkinje in 1839<br/>(D) Chromatin material &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; (s) Schleiden and Schwann<br/>&#160; &#160; &#160; and nucleolus&#160;<br/>(E) Cell theory &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160;(t) Nucleus

Question 35 :
Assertion: Specialization of cells is useful for organism. Reason: It increases the operational efficiency of an organism.

Question 36 :
Assertion: Schleiden and Schwann were the first to put forward cell theory. Reason: The cells are always living unit.