EXPLAIN FIVE ABIOTIC FACTORS THAT AFFECT THE ECOSYSTEM (20M]
Explain
five abiotic factors that affect the ecosystem. (20m)
Water
The availability of adequate amounts of
water lead to plant growth which provides food for animals.
In aquatic environment, water is a medium
in which gametes are released thus lead to continuity in procreation. It is a
medium for fertilization in some organisms.
Temperature-
Influences the rate of enzyme catalysed
reactions. Therefore, it exerts an influence on almost all activities of
plants, animals and other organisms such as respiration, photosynthesis,
growth, and transport etc.
Light-
Is necessary in plants for photosynthesis
and it influences flowering of a wide variety of plants. It affecting opening
and closing of stomata and affects the rate of transpiration.
Salinity-
Is the salt content of water? It varies in
aquatic habitat. Marine organisms suffer the risk of losing water.
Humidity
Determines the amount of water loss from animals
bodies and organs of plants; high humidity means less evaporation; and low
humidity means high rate of evaporation and transpiration;
pH
It determines if water habitat is acidic or
alkaline; PH has a great influence on physiological function of organisms
affects enzyme concern reactions since enzymes operate within a narrow pH
ranges.
Wind
Wind came physical damage to plants;
increase rate of transpiration as air blows
away; causes migration of insects; wind having gases may acid rain in a
region; wind is an agent of pollination and dispersal.
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