The components of the ecosystem are seen to function as a unit when you consider the following aspects -
(A) Productivity
(B) Decomposition
(C) Energy flow
(D) Nutrient cycling
Choose the correct answer from the options given below :

Which one of the following is not true for a molecule that can act as a genetic material?

Match List-l with List-II

List-l (Population interaction)	List-II (Species A / Species B)
(A) Mutualism	(I) +/0
(B) Competition	(II) +/+
(C) Commensalism	(III) -/0
(D) Amensalism	(IV) -/-

'-' sign for detrimental interaction, '0' sign for neutral interaction, '+' sign for beneficial interaction
Choose the correct answer from the options given below:

Which is known as 'Terror of Bengal'.?

Read the passage carefully and give the answers to the question :
India was amongst the first countries in the world to initiate action plans and programmes at a national level to attain total reproductive health as a social goal.
These programmes called 'family planning' were initiated in 1951 and were periodically assessed over the past decades. Improved programmes covering wider reproduction-related areas are currently in operation. Creating awareness among the people about various reproduction-related aspects and providing facilities and support for building up a reproductively healthy society are the major tasks under these programmes.
Which of the following is not a Sexually Transmitted Disease?

Which of the following statements is INCORRECT about Genetic Engineering Approval Committee?

The negatively charged DNA is wrapped around the positively charged histone octamer and forms a structure, called:

\(Mn_2O_7\), \(CrO\) and \(V_2O_5\) respectively are:

The primary coil of an ideal step up transformer has 200 turns and transformation ratio is 50. The input voltage is 220 V, the voltage across secondary coil will be:

If set A has 5 elements and set B has 7 elements then number of one-one and onto mapping from A to B is:

Let \(\vec{a}\) and \(\vec{b}\) be two unit vectors and \(\theta\) is the angle between them. If \(\vec{a}+\vec{b}\) is a unit vector, then \(\theta\) is:

Which of the following reactions is the most suitable for the preparation of n-propylbenzene?

The term 'mobility' is: