sedentary sea anemone gets attached to the shell lining of hermit crab. the association is

A steel and brass wire, each of length 50 cm and cross-sectional area 0.005 cm2 hang from ceiling and are 15 cm apart. Lower ends of the wires are attached to a light horizontal bar.

an association of individuals of different species living in the same habitat and having functional interaction is:

Which of the following diagrams correctly shows the relation between the terminal velocity VT of a spherical body falling in a liquid and viscosity v of the liquid?

A biologist studied the population of rat in barn he found that the average natality was 250, average mortality 240, immigration 20 and emigration 30 the net increase in population is

match the following