Categorise the following organs into two, with appropriate headings.
Thymus, Spleen, Bone marrow, Peyer’s Patches.

Construct a table and arrange the following items in three columns with appropriate headings: Tetany, adenohypophysis, Insulin, Myxoedema, Parathyroid, Dwarfism, Growth hormone, Thyroid, Diabetes mellitus, Pancreas, Thyroxin, PTH.

Classify the following in to 3 groups and give appropriate headings. Thalamus, Corpora-quadrigemina, Pons, hypothalamus, Cerebrum, Medulla Oblongata.

Arrange the following words into two groups and give and appropriate heading to each group. Testes, oviduct, cloaca, Bidder's canal, ovaries, urinogenital duct, vasa efferentia, cloaca.

The given statements are about the structure of muscles. Categorise them into a table giving appropriate headings. These muscles have striation. These are found inside the wall of hollow internal organs. These muscles have no striations. They are voluntary muscles. They are muscles of the arms and legs. They are involuntary muscles.

Arrange the following bones into two columns and give proper heading to each columns. Scapula, Carpals, Femur, Fibula, Tibia, Tarsals, Ac-etabulum, Metatarsals, Radius, Humerus, Glenoid cavity, Clavicle, Metal Carpals, Phalanges, Patella, llium, ischium, Pubis.

Arrange the following terms in two columns with suitable headings. (Seminiferous tubule, Uterus, vas deferens,cervix,vagina,Epididymis).

In the following question, an Assertion (A) is followed by a corresponding Reason (R). Use the following keys to choose the appropriate answer. Assertion : The dipole moment in case of BeF_2 is zero. Reason : The two equal bond dipoles point in opposite directions and cancel the effect of each other.

Categorise the following terms into two. Give suitable title for each category. Species, Museum, Class, Genus, Zoological park, Herbarium.

Classify the given terms into two columns and give appropriate headings. rubber, Glucose, amino acids, drugs, gums, spices,cholesterol, Fatty acids