ORGANISMS AND POPULATIONS Set 12

You never see any cattle or goat browsing on due to

The desert plants in order to tolerate water stress, show

The type of population, where pre-reproductive animals occur in large numbers, is

Pollinator mutualism are special interactions involving …A…, which receive food or a place to lay eggs and …B…, which receive pollen from other of their kind.
Choose of correct option for A and B

Competition is best defined as a process in which the fitness of one species (measured in terms of its ' the intrinsic rate of increase) is significantly

Which characteristics determine the percolation and water holding capacity of soils?

During the course of million of years of their existence most species should have evolved a relatively …A… internal environment (within the body of organisms). This internal environment would permit all biochemical reactions and physiological functions to proceed with …B… efficiency and therefore, increase the overall fitness of the species
The ability of an organism to keep the internal environment constant despite drastic changes in external conditions is called …C…
Choose the correct option for A, B and C

To avoid the competive exclusion principle two similar species live in same area, they may evolve to become more different in order to

Which one is right for logistic model for population growth?
I. Population growth rate increases as the size of population approaches the carrying capacity
II. All individual have same effect on population growth
III. There are unlimited natural resources
IV. As population increases the competition goes on increasing
Select the correct combination

Choose the wrong statement