Which of the following is generally not a characteristic of anemophilous flower ?
a) unisexual nature b) abundant pollen grains
c) bright colored d) reduction in number of sepals and petals
A characteristic feature of ripening of some fruits (like bananas) is a sudden increase in
respiration which is known as
a) climatic b) photorespiration
c) anthesis d) climacteric
The processes in which organisms do not require light and pigment and synthesize their food utilizing energy released by oxidation of inorganic and organic substances is
a) photoautotrophism b) heterotrophism
c) chemosynthesis d) saprophytism
The condition under which transpiration would be most rapid are
a) excess of water in soil
b) low humidity, high temperature, turgid guard cells and moist soil
c) low velocity of wind
d) high humidity
In guttation, water is lost in the form of
a) water vapours
b) dilute solution of sugars
c) pure liquid form
d) dilute solution of salts and organic substances
A pure tall pea plant can be distinguished from a hybrid pea plant by
a) measuring its height
b) gibberellin treatment
c) selfing and noting that all progeny are tall
d) selfing and noting that all progeny are dwarf