Lack of oxygen in muscles often leads to cramps among cricketers. This results due to

(b) Less secretion of growth hormone

(c) ozone and oxygen

(b) (ii) and (iii) 

Hint—  (a) No need of storage.  (b) Because they are lignified.  (c) Presence of stone cells (sclerenchyma)  (d) Presence of Collenchyma.  (e) Sclerenchyma

It is given that the ratio of hydrogen and oxygen by mass to form water is 1:8. Then, the mass of oxygen gas required to react completely with 1g of...

The motor quality which a senior citizen lacks while tying the shoe laces is lower body flexibility. As we grow older our flexibility is reduced to a great extent.

Ciliary muscles adjust the curvature of the eye lens and change its focal length. Weakening of ciliary muscles leads to presbyopia. This can be corrected by a bifocal lens. (a) Akshay...

Self Help groups (SHG) have helped borrowers to borrow money without collateral in the following ways:  (i) Self help groups have organised rural poor more so women in collecting their money and...

Morphine / barbiturates / amphetamines / benzodiazepines / lysergic acid diethyl amides (LSD)  Affects the central nervous system / acts as a pain killer / acts as a sedative / treats...

The correct answer is (1) Cell mediated immune response causes nonacceptance or rejection of graft or transplanted tissues/organs.