4.
the study of microorganisms in potable or
drinking water.
No
pathogens
No chemicals
No taste
No odor
No color
No harm to human health
5. (1) Marine Ecosystem
plants and animals interact with the chemical
and physical features of the environment.
aquatic
areas of life, They can be oceans, ponds
, marshes, lagoons, or any area with water that
supports life.
6. (2) Fresh Water Ecosystem
factors, including temperature , light
penetration, and vegetation.
Only 3% of the world's
99% of this is either frozen in glaciers and
pack ice or is buried in aquifers.
The remainder is found in lakes, ponds, rivers,
and streams.
7. wide and includes the habitats like
Planktons
live in water column
incapable of swimming
crucial source of food to
large aquatic organisms, such as fish and whales.
Benthos
community of organisms which live on, in,
or near the seabed
also used in freshwater biology
food sources for the benthos are algae
Organisms such as sea stars, oysters,clams,
sea cucumbers, brittle stars
8.
Microbial mats
a multi-layered sheet of microorganisms,
mainly bacteria and archaea.
Temp from –40°C to 120°C
industrial uses for water treatment
and for cleaning up pollution.
Biofilm
group of microorganisms in which
cells stick to each other on a surface.
5 stages of development
Initial attachment:
Irreversible attachment:
Maturation I:
Maturation II:
Dispersion:
