Ecology

Factors

oxygen salinity light

pH

-may be influenced by photosynthetic activity of aquatic plants

The more acidic a substance, the sourer it is. 

The higher the acidic, the lower the pH

7pH is neutral. 

acids --> pH1-6.9

alkali pH --> 7.1-14

Water

(neutral) --> pH7.0

Biotic Factors

Symbiosis

1.Mutualism +/+ positive! (Hermit crab)

2. Commensalism (one benefits;the other unaffected) +/0

3. Parasitism (parasite benefits and host harmed) +/- dog and fleas. worms in human body

1. competition -/- (Interspecific- a form of symbiosis) (Intraspecific-same species)

2. Predation (one feeds on the other) +/-

Producer-Primary consumer->secondary consumer->tertiary consumer-> quaternary consumer