Argue in favor or against the following statements (include examples, rationale, explanations, etc.): 1. Plants migrate 2. Plants defend themselves 3. Plants are good mothers. 4. Grasses are the most important food for humans. Solution Plant migration The Dispersal of the seeds is continuous process, by which plant species survives and spreads. Migration of plants is a result of the dispersal of the seeds directly to wider areas of earth,also a phenomenon constant in plant kingdom.Angiosperms species covered the whole earth migrating to the different countries along the different routes. Due to global warming,the plants are heading for hills for better survival. A study shows that 171 forest species in the Western Europe, among most of spp are shifting toward their a favourable locations to cooler spots for better survival.Plants are migrate toward higher altitudes only because of the climate change, most of world plant species diversity are found in the tropical areas, a very few studies, have examine either tropical mountain plant species are they affected by change in climate to same extent as the temperate plant species. new study has determined, major changes occurred in last two [2]centuries.If we compare the migration of the plant communities on Chimborazo volcano in the Ecuador with a historical data from the 1802, the Aarhus University researchers found that average upslope shifted more than [> 500 metres].and The entire boundary of vegetation have been moved upwards from the 4,600 metres to the 5,200 metres. The main region for this dramatically shift is only the climate change last 210 years 2.Plants defend themselves Plant can not run away from danger like most of the animal do,so that they have developed there own weapon & aroma & release toxic chemical in order to protect themselves, Plant are able to move anywhere, so that every single cell defend itself against the all attack from the invading pathogens, for example- fungi and bacteria. first line defense in plant The first line of defense in plants is intact & impenetrable barrier that composed of the bark & waxy cuticle. Both are protect plants against the herbivores. And Other adaptations against herbivores are include the, thorns the modified branches of plant, hard shells and the spines.[modified leaves]first line defense occur when the plant cells can detect the presence of the foreign invader like(flagella of the bacteria or chitin which found in fungi cell walls) and they alert the surrounding cells through releasing molecules that give massage to other cells so other cell ready to fight invader their defences. example, the alerted infected plant cells secrete molecules are harmful to invadors or plant cell build up their more cell walls for extra protection form invader. second line of defense is hypersensitive response (HR).infected plant cells around the infection site will kill [itself]themselves to stop pathogen to spreading infection throughout the plant. This pr.

1. Argue in favor or against the following statements (include examples, rationale, explanations,
etc.):
1. Plants migrate
2. Plants defend themselves
3. Plants are good mothers.
4. Grasses are the most important food for humans.
Solution
Plant migration
The Dispersal of the seeds is continuous process, by which plant species survives and spreads.
Migration of plants is a result of the dispersal of the seeds directly to wider areas of earth,also a
phenomenon constant in plant kingdom.Angiosperms species covered the whole earth migrating
to the different countries along the different routes. Due to global warming,the plants are heading
for hills for better survival. A study shows that 171 forest species in the Western Europe, among
most of spp are shifting toward their a favourable locations to cooler spots for better
survival.Plants are migrate toward higher altitudes only because of the climate change, most of
world plant species diversity are found in the tropical areas, a very few studies, have examine
either tropical mountain plant species are they affected by change in climate to same extent as
the temperate plant species. new study has determined, major changes occurred in last two
[2]centuries.If we compare the migration of the plant communities on Chimborazo volcano in the
Ecuador with a historical data from the 1802, the Aarhus University researchers found that
average upslope shifted more than [> 500 metres].and The entire boundary of vegetation have
been moved upwards from the 4,600 metres to the 5,200 metres. The main region for this
dramatically shift is only the climate change last 210 years
2.Plants defend themselves
Plant can not run away from danger like most of the animal do,so that they have developed there
own weapon & aroma & release toxic chemical in order to protect themselves,
Plant are able to move anywhere, so that every single cell defend itself against the all attack from
the invading pathogens, for example- fungi and bacteria.
first line defense in plant
The first line of defense in plants is intact & impenetrable barrier that composed of the bark &
waxy cuticle. Both are protect plants against the herbivores. And Other adaptations against
herbivores are include the, thorns the modified branches of plant, hard shells and the
spines.[modified leaves]first line defense occur when the plant cells can detect the presence of

2. the foreign invader like(flagella of the bacteria or chitin which found in fungi cell walls) and they
alert the surrounding cells through releasing molecules that give massage to other cells so other
cell ready to fight invader their defences. example, the alerted infected plant cells secrete
molecules are harmful to invadors or plant cell build up their more cell walls for extra protection
form invader.
second line of defense is hypersensitive response (HR).infected plant cells around the infection
site will kill [itself]themselves to stop pathogen to spreading infection throughout the plant. This
prevent’s the pathogens from the getting access of (like water and nutrients) for pathogen to
spread infection and stops the infection.
3. Plants are good mothers,
there are so many region to called plant are good mother , because we know how a mother care
her child, she protect her baby 24 hrs, mother play important role in survival of her child baby,
same as real mother, plant are playing same role for all living organism in the worlds. Plants
make food for as for survival and growth, they convert sunlight into food, plant make oxygen for
all living organism to survive in environment, plant take carbon dioxide and gives as oxygen,
and plant also provide habitat for many animal or birds live on or under the plant provide shelter
or safety for many animals, plant also preserve soil, or prevent erosion near the river area or sea
area, help to conserved the soil, plant provide useful product to animals like
medicine,food,fiber,cloths,cotton,woods,coals,natural gas,
4. Grasses are the most important food for humans.
That is the simple question but has a complex answer- Yes or no,we eat lot of the grass, but in
grain form the Wheat, barley rice, rye, sprouts ,millet, (stems and leaves)
[Poaceae] grass family is [5] fifth largest family of the flowering plants, but poaceae grass is
most important for humans. Three [3]grass species are wheat, maize, rice are provide almost 3/5
of all the human calories. These three species combining produce 85% of world’s calories.
If humans can start eating grass, but we are not a multi-gastric.even if we eat than we can not
digest grass because we can not break down cellulose molecule in grass to extract out nutriments
form grass, because we don’t have any cellulase enzyme in human body to break-down 1-4 beta-
glycosidic bond in glucose chain of cellulose,
so how we eat grass in different way like first dry the all grass than grind it convert in powder
form than use it as bulking agent of food, like bread,stews,soups
some of the grass are toxic because they have cyanide ingrass leaf,
some imported grasses,have cyanide in he some kind of the chemical bond with hydrogen and
sugar , they get separated during digestion, and cyanide free and act as nerve agent for human
resulting cause neural disease in human body, example- Crowfoot Grass