Organisms and Population Questions

Match the following and select the correct option : (a) Earthworm (i) Pioneer species (b) Succession (ii) Detritivore (c) Ecosystem service (iii) Natality (d) Population growth (iv) Pollination...

In a population of 1000 individuals 360 belong to genotype AA, 480 to Aa and the remaining 160 to aa. Based on this data, the frequency of allele A in the population is

′Solum′ includes -

The accompanying graph depicts the relationship between environmental impact (E), world population (P), average standard of living (L) and world resources (R). What is expected, if the world populatio...

Asymptote in a logistic growth curve is obtained when :

Artificial selection to obtain cows yielding higher milk output represents:

Gause's principle of competitive exclusion states that:

When does the growth rate of a population following the logistic model equal zero? The logistic model isgiven as 𝑑𝑁/𝑑𝑡 = 𝑟𝑁(1 - 𝑁/𝐾):

A river with an inflow of domestic sewage rich in organic waste may result in:

Natality refers to

In a growing population of a country

Which one of the following population interactions is widely used in medical science for the production of antibiotics ?

A sedentary sea anemone gets attached to the shelllining of hermit crab. The association is :

A biologist studied the population of rats in a barn. He found that the average natality was 250, average mortality 240, immigration 20 and emigration 30.The net increase in population is :...

The tendency of population to remain in genetic equilibrium may be disturbed by :

Cuscuta is an example of

In an area where DDT had been used extensively, the population of birds declined significantly because

What type of human population is represented by the following age pyramid ?

Which one of the follwing characteristics of the biological community ?

The formula for exponential population growth is