Zero growth means
natality balance mortality
natality is more than mortality
natality is less than mortality
natality is zero
The organisms inhabiting a common environment belong to the same
species
genus
population
community
Analogous structures are a result of
Convergent evolution
shared ancestry
stabilising selection
divergent evolution
Hydrophytes are characterized by
presence of sclerenchyma
presence of aerenchyma
absence of aerenchyma
presence of root nodules
A sedentary sea anemone gets attached to the shell lining of hermit crab. The association is
ectoparasitism
symbiosis
commensalism
amensalism
The soil, which is transported by wind is known as
colluvial
eolian
alluvial
glacial
Which of the following is correct for r-selected species?
Large number of progeny with small size
Large number of progeny with large size
Small number of progeny with small size
Small number of progeny with large size
Root cap is not found in
mesophytes
xerophytes
hydrophytes
halophytes
Pedology refers to the study of
soil
water
fossils
If '+' sign is assigned to beneficial interaction, '-' sign to detrimental and '0' sign to neutral interaction, then the population interaction represented by '+' '-' refers to
Mutualism
Amensalism
Commensalism
Parasitism
