How organisms adapt and survive in different environment.

1. Living in Earth’s
Diverse
Environment

16. • All organisms require a usable source of
energy to live.
• Solar Energy from the sunlight, captured by
chlorophyll during the process of
photosynthesis, powers more ecosystems.
• Lack of sunlight is seldom the most important
factor limiting plant growth for terrestrial
ecosystem, although shading by trees does
create intense competition for light among
plants growing on forest floors.

19. • Temperature is the most important
abiotic factor because it affect on
metabolism.
• Few organisms can maintain a
sufficiently active metabolism at
temperature close to 0◦C (32◦F), and
temperatures above 45◦C (113◦F)
destroy the enzymes for most organism.

20. • It has a high body
temperature well
suited to the chilly
climate of its
mountain habitat.

21. • Water is essential to all life. For terrestrial
organisms, the primary threat is drying out in
air.
• Many land animals have watertight coverings
that reduce water loss, such as reptilian
scales.
• And most plants have waxy coatings on their
leaves and other aerial parts.

27. Algae Photosynthetic Bacteria

28. • Aquatic organisms must depend on oxygen
dissolved in water.
• Cold, fast moving water has a higher oxygen
content ythan warm or stagnant water.

29. Salinity

30. Currents

31. Tides

32. • Wind is an important abiotic factor on land.
• Wind increases an organism’s rate of water
loss by evaporation.
• In some ecosystems, frequent occurrences of
natural disturbances such as storms or fire
play an important role in the distribution of
organisms.

33. Storm Fire

34. Living in Earth’s
Diverse
Environment