Biology Questions and Answers
- What is biological control?
Biological control is a natural method to
control the size of animal,microorganism or plant populations. (^)
Biological control is based on the
knowledge of inharmonioecological interactions between species.us (negative) (^)
Using such kncompetitor or owledge a parasite,predator species is
introduced in an ecosystem in order to
attain reanother duction species with of the population owhich it has f
inharmonious ecological interaction. The
biological control padvantage of substituting thresents thee use of (^)
pesticides and other toxic chemical
products in the control odiseases. It however should bef plagues and
employed with caution under serious
previous study to avecological disequilibrioid harmfulum.
A kind of biological control species can be done by the introof somductione (^)
of previously sterilized males, that do
not generate offspring.
- What is bioremediation?
Bioremmicroorediation ganisms,is the use of like bacteria, (^) protists
and fungi, to dsubstances turning them into egrade noxious (^) non toxic
or less toxic substances. Bioremediation
employs microormetabolism uses coganismsntaminants whose as (^)
reagents.
Bioremediation is used, for example, in
the decontamination polluted by oil spills. In this processof environments
bacteria that use hydrocarbons as
substrate for their cellular respiration
are employed.
- What is global warming?
Global temperatuwarming re of the planet dis the increase iue ton the
accumulation atmosphere, especiallyof some gases in the gases that r (^) etain
the solar energy reflected by the planet
surface. Tglobal warmihe main gng is carbas that causeson dioxide, CO the
but other gases act as “warming gases”^2 ,^
too, like methane, CHoxide, N 4 , and nitrous
carbon dioxide in the atmosphe^2 O. The exaggerated increase re has of^
been caused by the burning of fossilfuels (mainly oil and coal) in industrial (^)
and urban societies and by forest fires.
(It is important to warming provided by gases of thenote that the natural
atmosphere is fundamental for the
maintenance temperature.)of the planet
PredictionsUnited Nations of studies sp stated that thonsoree globald by the
warmintransformationsg may caus to the planet in thee life-threatening
near future. Countries that are the
biggest emitters ofthe United States and China, carbon dioxide, however,like
systematically ignore the warnings and
continue danger. to largely contribute to the
Global polemic ewarming nvironmental issues tois one of the mostday.
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