Terrestrial environment cannot fluctuate the temperature which is suitable for homeotherm. Most of the Homeotherm body is well insulated by feather or fur or lear of fat This feather or fur a lear of stagnant air next to the body & reduce heat loss from underline skin or heat gain from environment. In aquatic environment oxygen is sometimes a limiting factor an aquatic habitats but this is seldom the case in terrestrial habitats. Due to the temperature, the abundance of oxygen is variable in water. So Homeotherm try to find their suitable place in terrestrial environment. Metabolic rate in homeotherm has no effect on body temperature, this is why most of the homeotherm find the terrestrial environment as their suitable place for living. In most terrestrial environments there is hardly ever a a shortage of light which help homeotherm for seeking food, avoid predator & other functions.

1. Warm Blooded Animals (homeotherms)
Dominate the Terrestrial Environment, but
Cold Blooded Animals (poikilotherms) Are
Most Abundant in Aquatic Environment. Give
the Differences Between Two Environments
Speculate on Why This is so

2. What is Poikilotherm & Homeotherm ?
Poikilotherm:
 Relatively variable body temperature.
 Get heat from the environment hence they are called
ectothermal animals.
 E.g. most fishes, invertebrate amphibians and reptiles.
Homeotherm:
 Relatively constant body temperature.
 Can regulate their own body temperature.
 Get heat from the body.
 E.g. Birds, mammals

3. Poikilothermy & Homeothermy
Homeothermy:
The condition in which the organisms body temperature
remains more or less constant over a range of
environmental temperature.
Poikilothermy:
The condition in which the organisms body temperature
changes with change in environmental temperature.

4. Environment for Poikilotherm:
Aquatic environments are much more stable
than terrestrial environments.
Water gain or loses heat slowly.
Water conduct heat poorly.
There occurs a slight change in environment
and body temperature of aquatic organisms
fluctuates slowly with that change of water.
Aquatic environments are rich in nutrients
which support more live than equivalent
terrestrial ecosystems.

5. Environment for Homeotherm:
Terrestrial environment cannot fluctuate the temperature
which is suitable for homeotherm.
Most of the Homeotherm body is well insulated by feather or
fur or lear of fat
This feather or fur a lear of stagnant air next to the body &
reduce heat loss from underline skin or heat gain from
environment.
In aquatic environment oxygen is sometimes a limiting factor
an aquatic habitats but this is seldom the case in terrestrial
habitats. Due to the temperature, the abundance of oxygen is
variable in water. So Homeotherm try to find their suitable
place in terrestrial environment.
Metabolic rate in homeotherm has no effect on body
temperature, this is why most of the homeotherm find the
terrestrial environment as their suitable place for living.
In most terrestrial environments there is hardly ever a a
shortage of light which help homeotherm for seeking food,

6. Conclusion:
From the above discussion we found that the main
difference between aquatic environment & terrestrial
environment for poikilotherm & homeotherm is
temperature fluctuation which is constant in terrestrial
environment but fluctuate widely in aquatic
environment.

7. THANKS
TO
ALL