Match List-l with List-ll

List-l (Evolutionary stages of man)	List-II (Features)
(A) Dryopethicus	(I) Brain capacity 900 cc
(B) Australopithecines	(II) Hairy and walked like gorillas
(C) Homo habilis	(III) Brain capacity 650-800 cc
(D) Homo erectus	(IV) Lived in east African grasslands

Choose the correct answer from the options given below:

Match List - I with List - II.

LIST I (Use of transgenic animal)	LIST II (Work done)
A. Emphysema	I. Polio vaccine
B. Human alpha-lactalbumin	II. Rosie
C. Transgenic mice	III. Toxin sensitive transgenic animal
D. Chemical safety testing	IV. α-1-antitrypsin

Choose the correct answer from the options given below:

Match List-I with List-II

List-I (Terms)	List-II (Features)
(A) Natality	(I) Exit of individuals
(B) Mortality	(II) Entry of individuals
(C) Immigration	(III) Death rate
(D) Emigration	(IV) Birth rate

Choose the correct answer from the options given below:

The flowers which do not open at all are known as:

Which of the following organism helps the plants in the absorption of phosphorus from soil?

Read the following passage carefully and answer the given questions.
The B-lymphocytes produce an army of proteins in response to pathogens. Each antibody molecule has four peptide chains, two small called light chains and two longer called heavy chains. Virus-infected cells secrete proteins called interferons which protect non-infected cells from further viral infection. Symptoms of allergic reactions include sneezing, watery eyes, running nose and difficulty in breathing. The use of drugs like anti-histamine, adrenalin and steroids quickly reduce the symptoms of allergy. Lymphoid organs are the organs where origin and/or maturation and proliferation of lymphocytes occur. The primary lymphoid organs are bone marrow and thymus. After maturation the lymphocytes migrate to secondary lymphoid organs like spleen, lymph nodes, tonsils, Peyer's patches of small intestine and appendix. Heroin commonly called smack is chemically diacetylmorphine which is a white, odourless, bitter crystalline compound. This is obtained by acetylation of morphine, which is extracted from the latex of poppy plant Papaver somniferum.
Interferons are produced by-

The number of phenotypes and genotypes obtained in F2 generation after crossing RRYY and rryy in pea plants are:

Arrange the following events in the correct order pertaining to fertilization in the human reproductive system.
(A) The blastocyst becomes embedded in the endometrium.
(B) Finger-like projections appear on the trophoblast called chorionic villi.
(C) The blastomeres are arranged into trophoblast and the inner cell mass.
(D) The zygote divides mitotically and transforms into an embryo with 8-16 blastomeres, called a morula.
Choose the correct answer from the options given below.

\(\int_0^1 x e^x d x\) is equal to

Arrange the following amines in increasing order of basicity in aqueous solution
(A)\(\left( CH _3\right)_2 NH\)
(B) \(CH _3 NH _2\)
(C)\(\left( CH _3\right)_3 N\)
(D) \(NH _3\)
Choose the correct answer from the options given below :

What is the defense mechanism adopted by Acacia and Cactus to protect themselves from predators (herbivores)?

The shaded region shown in the figure is given by inequalities:

Read the passage carefully and answer
The crystal field theory (CFT) is an electrostatic model which considers the metal-ligand bond to be ionic arising purely from electrostatic interactions between the metal ion and the ligand. Ligands are treated as point charges in case of anions or dipoles in case of neutral molecules. The five d orbitals in an isolated gaseous metal atom/ion have same energy, i.e., they are degenerate. This degeneracy is maintained if a spherically symmetrical field of negative charges surrounds the metal atom/ion. However, when this negative field is due to ligands (either anions or the negative ends of dipolar molecules like NH3 and H2O) in a complex, it becomes asymmetrical and the degeneracy of the d orbitals is lifted. It results in splitting of the d orbitals. The pattern of splitting depends upon the nature of the crystal field.
Which of the following pairs exists as high-spin, tetrahedral complexes?