Organism and Population- Quiz 2

Animals which are at metabolic advantage are

• Aquatic

• Ectothermal

• Endothermal

• Both (a) and (b)

Optimum temperature for enzyme functioning in endotherms is 

•  $25\degree C$  

•  $37\degree C$  

•  $31\degree C$  

•  $45\degree C$  

Antifreeze molecules that prevent intracellular ice formation are generally are which type of macromolecule.

• Calcium salts.

• Membrane phospholipids.

• Long chain alcohols.

• Glycoproteins.

Which of the following is a climatic factor

• Oxygen

• Temperature

• Soil structure

• Altitude

Open water zone in a deep lake / sea is called

• Littoral zone

• Limnetic zone

• Profundal zone

• Disphotic zone

Profundal zone is

• Aphotic zone in deep water

• Euphotic zone in open water

• Disphotic zone in deep water

• Dark bottom of deep water body

Edaphic factors are related to

• Soil

• Animal

• Man

• Temperature

Which of the following is the most ecologically relevant environmental factor?

• Water

• Soil

• Temperature

• Light

Organisms restricted to a narrow range of temperature, are called as

• Euryhaline

• Stenothermal

• Eurythermal

• Stenohaline

Mark the correct match :

• Tuna fish – tropical ocean

• Mango – tropical and arctic tree

• Snow leopard – Polar animal

• Both (a) and (c)