The four levels of biological organization to which Ecology is basically concerned are:

1. Macromolecules-tissues-populations-biome

2. Macromolecules-organisms-population-biome

3. Tissues-organs-community-biome

4. Organisms-Populations-Community-Biome

Physiological ecology

1. works at the organismic level

2. Tries to understand the adaptation with respect to survival only

3. Tries to understand the adaptation with respect to reproduction only

4. None of these

A wide variety of habitats within a biome can be a result of

1. Regional variation of temperature and precipitation.

2. Local variation of temperature and precipitation

3. Both 1 and 2

4. Natural selection

How many of the above statements is/are wrong?

1. Three

2. Two

3. Only one

4. All four

Calculate the birth rate of a population which has 20 individuals at time t, after one year 8 individuals have also counted along with those 20.

1. .3

2. 0.2

3. 0.4

4. 0.8

The size of the population for any species is

1. Dynamic

2. Static

3. Both

4. Always Nt

Population Ecology links

1. Ecology to Evolution

2. Ecology to Genetics

3. Ecology to population Genetics and evolution

4. Ecology to diversity and evolution

Under normal circumstances which of the following affects population density most?

1. Nt

2. B

3. I

4. E

The innate potential to grow in number does not follow which of the following statements?

(1) Each species has this ability

(2) When resources are unlimited only then it is realized

(3) This is an ideal situation.

(4) Resource availability is not that essential for the unimpeded growth

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