Ecology is the study of an individual
species is called
i) Community ecology
ii) Autecology
iii) Species ecology
iv) Synecology
Read the given statements and select the
correct option.
i) Hydrophytes possess aerenchyma to
support themselves in water.
ii) Seeds of Viscum are positively
photoblastic as they germinate only in presence of light.
iii) Hygroscopic water is the only soil
water available to roots of plant growing in soil as it is present inside the
micropores.
iv) High temperature reduces use of
water and solute absorption by roots.
Read the given statements and select the
correct option.
i) Loamy soil is best suited for plant
growth as it contains a mixture of silt, sand and clay.
ii) The process of humification is slow
in case of organic remains containing a large amount of lignin and cellulose.
iii) Capillary water is the only water
available to plant roots as it is present inside the micropores.
iv) Leaves of shade plant have more
total chlorophyll per reaction centre, low ratio of chl a and chl b are usually
thinner leaves.
Read the given statements and select the
correct option.
Statement A : Cattle do not graze on
weeds of Calotropis.
Statement B : Calotropis have thorns and
spines, as defense against herbivores.
Read the following statements and fill
up the blanks with correct option.
i) Total soil water content in soil is
called _________________
ii) Soil water not available to plants
is called _________________
iii) Soil water available to plants is
called _________________
Column I represent the size of the soil particles
and Column II represents type of soil components. Which of the following is correct
match for the Column I and Column IL
Column - I Column - II
I). 0.2 to 2.00 mm i) Slit soil
II) Less than 0.002 mm ii) Clayey soil
III) 0.002 to 0.02 mm iii) Sandy soil
IV) 0.002 to 0.2 mm iv) Loamy soil