The animal population becomes too large for its feeding source or its habitat, its members starve die but humans escape this disaster by
“In the absence of environmental resistance the population grows in geometrical ratio when the food is given in arithmetical ratio''. This is
Which of the following causes abortion in ladies?
Which of the following stages of syphilis is characterised by a skin rash, fever and aches in the joints and muscles?
‘Essay on population’ was published by