Given below are six sets with four terms each. In each set one term is an odd one. Identify the odd term in each set and name the category to which the remaining three belong. One example is done for you: 

No.	Set	Odd one	Category
	Cell wall, large vacuole, plastids, centrosome	centrosome	Parts of an animal
i	Cerebrum, cerebellum, thalamus, hypothalamus
ii	Ovary, ureter, fallopian tube, uterus
iii	Adrenal gland, liver, thyroid gland, pituitary gland
iv	Malleus, pinna, incus, stapes
v	Haemophilia, colour blindness, albinism, night blindness

Briefly explain the following:

Osmosis

Briefly explain the following:

 Allele

Given below are sets of five terms. Rewrite each term in the logical sequence. One example is done for you.

 Example: Cortical cells, Root hair, Xylem, Soil water, Endodermis (absorption of water by plants)

 Answer: Soil water, Root hair, Cortical cells, Endodermis, Xylem

Active immunity, Antigen, Antibody, Bacteria, Lymphocytes (defense mechanism of the body)

State the function of the following:

Beta cells of pancreas 

Given below are sets of five terms. Rewrite each term in the logical sequence. One example is done for you.

 Example: Cortical cells, Root hair, Xylem, Soil water, Endodermis (absorption of water by plants)

 Answer: Soil water, Root hair, Cortical cells, Endodermis, Xylem

(ii) Implantation, Parturition, Ovulation, Gestation, Fertilisation (stages leading to the formation of foetus and birth)

Briefly explain the following:

Pulse

Given below are sets of five terms. Rewrite each term in the logical sequence. One example is done for you.

 Example: Cortical cells, Root hair, Xylem, Soil water, Endodermis (absorption of water by plants)

 (v) Renal vein, Renal artery, Afferent arteriole, Efferent arteriole, Glomerulus (pathway of blood through the glomerulus) 

Given below are sets of five terms. Rewrite each term in the logical sequence. One example is done for you.

 Example: Cortical cells, Root hair, Xylem, Soil water, Endodermis (absorption of water by plants)

(iv) Karyokinesis, S phase, Cytokinesis, G1 phase, G2 phase (cell cycle)

Given below are sets of five terms. Rewrite each term in the logical sequence. One example is done for you.

 Example: Cortical cells, Root hair, Xylem, Soil water, Endodermis (absorption of water by plants)

(iii) Oval window, Tympanum, Cochlea, Auditory canal, Ear ossicles (path through which vibration of sound is transferred in the human ear)