The menstrual flow results due to:
A. Increased estrogen levels
B. When released ovum is not fertilized
C. When pregnancy occurs
D. Breakdown of the endometrial lining of the uterus and its blood vessels

Continued self-pollination results in:

Match List I with List II

List - I	List - II
(A) Both the species are benefitted	(I) Competition
(B) One of the species is benefitted but the other is harmed	(II) Parasitism
(C) One of the species is benefitted but the other is neither benefitted nor harmed	(III) Commensalism
(D) Both the species are harmed	(IV) Amensalism
	(V) Mutualism

Choose the correct answer from the options given below:

Reserpine is an active chemical of which plant?

Alien DNA can be introduced into host cells by which of the following:
(A) Biolistics
(B) Micro-injection
(C) Cold-Shock
(D) Heat-Shock
Choose the correct answer from the options given below:

Which of the following material takes longer time for decomposition?

Which one of the following statements explains autogamy?

The large holes in 'Swiss Cheese' are due to the production of a large amount of CO2 by a bacterium named as

Read the passage carefully and answer the Questions
Carbonyl compounds such as aldehydes, ketones, and carboxylic acids play an important role in the biochemical process of plants and animal kingdom.
Many aldehydes and ketones find applications in dye, perfumery and other industries.
The carbonyl carbon atom is \(s p^2\)-hybridized forming three sigma and one pi-bond with oxygen.
C-O bonds are polar bond due to high electronegativity of oxygen than carbon.
Hence the carbonyl carbon behaves as an electrophilic center and oxygen as a nucleophilic centre.
Primary and secondary alcohols yield aldehydes and ketones respectively upon oxidation with variety of oxidizing agents.
The boiling points of aldehydes and ketones differ from hydrocarbons and ethers.
Aldehydes and ketones undergo nucleophilic addition reaction due to presence of electrophilic carbonyl carbon.
Nucleophile and a proton add across the carbon oxygen double bond.
The alcohol which cannot be used to prepare carbonyl compound through oxidation is

For the objective function \(z=p x+q y\), where \(p, q>0\) the corner points of the feasible region determined by the system of linear constraints are \((0,10),(5,5),(15,15)\) and \((0,20)\), condition on \(p\) and \(q\) so that maximum of \(z\) occurs at both the points \((15,15)\) and \((0,20)\) is :

In water hyacinth, pollination is carried out by -
(A) Wind
(B) Water
(C) Insects
(D) Animals
Choose the correct answer from the options given below:

The general solution of the differential equation \(\frac{d y}{d x}+\sqrt{\frac{1-y^2}{1-x^2}}=0\) is :

An LPP defined by the objective function Z = 2x + 2y has to be maximized.
The corner points are (0,0), (5, 0), (8, 2), (4, 6) and (0,8).
The maximum value occurs at :