The equation of the exponential growth curve of the population has 'r’ that means which of the following statements?

1. Extrinsic rate of natural increase

2. An important parameter for assessing impacts of only biotic factors on population growth

3. For Norway rat, it values is 0.15

4. For flour beetle, it is 0.12

What does K mean?

1. Nature's Carrying Capacity

2. Number of individuals of a species supported by nature as per the resources available

3. A maximum possible number of individuals of a species under practical circumstances.

4. All of these

In the V-PL growth curve, the asymptote is reached when

1. It's a lag phase

2. Just before the lag phase

3. At the time of curve reaching K

4. The time before deacceleration.

Evolution of population

(1) Maximizing Reproductive fitness

(2) Low r value

(3) Minimizing Darwinian fitness

(4) Both B and C

Which of the following will breed more than once in their life cycle?

1. Pacific salmon fish

2. Bamboo

3. Cuckoo

4. Both 1 and 3

The biological community can have

1. An isolated population of plants which doesn't depend on animals and microbes

2. An isolated population of animals which doesn't depend on plants and microbes

3. An isolated population of microbes which doesn't depend on plants and animals

4. No isolated population is possible there.

By a particular interaction in a population, one species was benefited while others was not affected at all. Such interaction is called as

1. Commensalism

2. Mutualism

3. Vandalism

4. Competition

By a particular interaction in a population, one species was harmed while other was benefited. Such interaction is called as

1. Competition

2. Predation

3. Parasitism

4. Both 2 and 3

The interacting species live closely together in which of the following interaction?

1. Parasitism, Predation and Commensalism

2. Commensalism, Amensalism

3. Mutualism and Competition

4. Parasitism, Mutualism, Commensalism

Predation can be thought as

1. Prey's way to control its the population

2. Nature's way of transferring energy to higher trophic levels.

3. Nature's way of controlling predators food chain

4. Predator's way of controlling prey's energy level