A sparrow is a primary consumer when it eat seeds, but becomes secondary consumer when it eats ____________

Antibodies are secreted by:

The karyotype of an individual was found to be 44 + XXY. The individual is suffering from which of the following disorder?

Removal of vas deferens surgically is called:

Read the following paragraph carefully and answer the given questions.
In the year 1963 the two enzymes responsible for restricting the growth of bacteriophage in E. coli were isolated. The first restriction endonuclease - Hind II, whose functioning depended on a specific DNA nucleotide sequence was characterized five years later. It was found that Hind II always cut DNA molecules at a particular point by recognizing a specific sequence of six base pairs. This specific base sequence is known as the recognition sequence for Hind II. Besides Hind II, today we know more than 900 restriction enzymes that have been isolated from over 230 strains of bacteria, each of which recognize different recognition sequences.
Hind II is a restriction endonuclease because

Which one of the given assisted reproductive technologies (ART) involves transfer of fertilized egg into the fallopian tube?

Match List I with List II

List I	List II
(A) The primates which were more ape-like	(I) Dryopithecus
(B) Probably lived in East African grasslands	(II) Homo sapiens
(C) The primates which were more man-like	(III) Ramapithecus
(D) First human-like being, the hominid	(IV) Australopithecines
	(V) Homo habilis

Choose the correct answer from the options given below:

Read the passage carefully and answer the question
The speed at which a chemical reaction takes place is called the rate of reaction. The rate of reaction depends on various factors like concentration of the reactants, temperature, etc. The relation between the rate of reaction and the concentration of reacting species is represented by the equation r = k[A]^x[B]^y, where x and y are the order of the reaction with respect to the reactants A and B, respectively. The overall order of the reaction is x + y. The rate of reaction can also be increased by the use of a catalyst which provides an alternate pathway of lower activation energy. It increases the rate of forward and backward reaction to an equal extent. It does not alter the Gibbs energy of the reaction.
Calculate the order of a reaction whose Rate = k[A]^1/2 [B]^3/2.

Which of the following element has highest binding energy per nucleon ?

Kirchhoff's second law is based on the law of conservation of

The enzyme used to treat a plant cell for isolation of DNA is:

The function \(f:[-1,1] \rightarrow R\) is given by \(f(x)=\frac{x}{x+2}\)

If the matrix \(\left[\begin{array}{ccc}-3 & x-y & 5 \\ 1 & 0 & z \\ x+y & 4 & 7\end{array}\right]\) is symmetric, then the correct option of the following, is :