What are the 5 disadvantages of protozoa?
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4 answers · Biology
Best Answer
The usefulness of protozoa can be discuss under
the following heads:
Helpful in Sanitation:
A large number of protozoans living in polluted
water feed upon waste organic substances and
thus purify it. Numerous holozoic protozoa feed
upon bacteria and play an important role in the
sanitary betterment and keeping water safe for
drinking.
Protozoa in food:
Although so minute, the protozoans are so
numerous that they form sources of food supply
to man both indirectly. The protozoans are
ingested or fed by insect larvae, crustaceans and
worms, which are devoured by fishes, calm and
other bigger animals, these constitute the food
of man.
The pelagic foraminifers and Radiolaria after
death sink to the ocean bottom and along with
the debris form the fundamental food supply,
the dinoflagellates constitute a large part of
plankton, which is utilized by the aquatic
animals. Some of the protozoans are
photosynthetic and can produce eighty times as
much food as the most efficient protein
producing crops.
Symbiotic protozoans:
Certain protozoa like Trichonympha and
colonympha etc. live in the intestine of termites
and wood cockroaches and help in the digestion
of cellulose, which is converted into glycogen to
be utilized by the host.
Commercial use of Protozoans:
The skeletal deposits of foramenifera and
Radiolaria form oceanic ooze at the bottom of
the sea. This is converted into important rock
strata.
hope this answer helps you
please mark it as brainliest
4 answers · Biology
Best Answer
The usefulness of protozoa can be discuss under
the following heads:
Helpful in Sanitation:
A large number of protozoans living in polluted
water feed upon waste organic substances and
thus purify it. Numerous holozoic protozoa feed
upon bacteria and play an important role in the
sanitary betterment and keeping water safe for
drinking.
Protozoa in food:
Although so minute, the protozoans are so
numerous that they form sources of food supply
to man both indirectly. The protozoans are
ingested or fed by insect larvae, crustaceans and
worms, which are devoured by fishes, calm and
other bigger animals, these constitute the food
of man.
The pelagic foraminifers and Radiolaria after
death sink to the ocean bottom and along with
the debris form the fundamental food supply,
the dinoflagellates constitute a large part of
plankton, which is utilized by the aquatic
animals. Some of the protozoans are
photosynthetic and can produce eighty times as
much food as the most efficient protein
producing crops.
Symbiotic protozoans:
Certain protozoa like Trichonympha and
colonympha etc. live in the intestine of termites
and wood cockroaches and help in the digestion
of cellulose, which is converted into glycogen to
be utilized by the host.
Commercial use of Protozoans:
The skeletal deposits of foramenifera and
Radiolaria form oceanic ooze at the bottom of
the sea. This is converted into important rock
strata.
hope this answer helps you
please mark it as brainliest
Answered by
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Disadvantages
✔They're easy to study because they belong to the same classification / group.
✔They're easy to work with in a lab.
✔They're highly adaptable to various habitats and living conditions
They can be readily compared and contrasted with other species.
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