Identify the biome that is not correctly matched with the physical parameters given in corresponding Column II and Column III:

	Biome	Mean annual temperature $\left[°\mathrm{C}\right]$	Mean annual precipitation [cm]
1.	Tropical forest	20-25	130 - 430
2.	Arctic and alpine tundra	-12 - 2	10 -125
3.	Coniferous forest	-5 - 5	100 -200
4.	Temperate forest	8-22	50 - 225

 

The most ecologically relevant environmental factor is:

1. Temperature

2. Water

3. Light

4. Soil

If global warming continues, how would the distributional range of some species be affected?

1. There will be a poleward shift

2. There will be an equatorial shift

3. No change expected for any species

4. Shift to marine water from land

Many freshwater animals cannot live for long in sea water and vice versa because of:

1. Buoyancy related problems

2. Lack of impermeable skins

3. Thermolabile enzymes

4. Osmotic considerations

Which of the following algae is likely to be found in the deepest waters?

(1) Green

(2) Brown

(3) Red

(4) All are found at equal depths

Under unfavorable conditions, many zooplankton species in lakes and ponds are known to enter a stage of suspended development called as:

1. Dormancy

2. Hibernation

3. Aestivation

4. Diapause

The given age pyramid represents a:

1. Fast expanding population

2. Slowly expanding population

3. Stable population

4. Declining population

Darwinian fitness is represented by:

1. Low r value

2. High r value

3. High K value

4. Low K value

Under a particular set of selection pressures, organisms evolve towards the most efficient:

1. Thermoregulation

2. Water conservation

3. Respiration

4. Reproduction strategy

A population interaction where one species is harmed whereas the other is unaffected is called as:

(1) Mutualism

(2) Competition

(3) Predation

(4) Amensalism