Ncert Exercises & Solutions

4. List the attributes that populations possess but not individuals.

Archaebacteria (Thermophiles) are ancient forms of bacteria found in hot water

springs and deep sea hydrothermal vents. They are able to survive in high

temperatures (which far exceed 100°C) because their bodies have adapted to such

environmental conditions. These organisms contain specialized thermo-resistant

enzymes, which carry out metabolic functions that do not get destroyed at such

high temperatures.