this ppt is based on useful plants and animals

3. Aloe vera is a succulent plant species. The species is frequently cited as
being used in herbal medicine since the beginning of the first century AD.
Extracts from Aloe vera are widely used in the cosmetics and alternative
medicine industries, being marketed as variously having rejuvenating,
healing, or soothing properties. There is, however, little scientific evidence
of the effectiveness or safety of Aloe vera extracts for either cosmetic or
medicinal purposes, and what positive evidence is available is frequently
contradicted by other studies.

4. Two 2009 reviews of clinical studies determined that all were too small
and faulty to allow strong conclusions to be drawn, but concluded: "there
is some preliminary evidence to suggest that oral administration of aloe
vera might be effective in reducing blood glucose in diabetic patients and
in lowering blood lipid levels in hyperlipidaemia. The topical application
of aloe vera does not seem to prevent radiation-induced skin damage. The
evidence regarding wound healing is contradictory. More and better trial
data are needed to define the clinical effectiveness of this popular herbal
remedy more precisely."One of the reviews found that Aloe has not been
proven to offer protection for humans from sunburn.

5. Dietary supplement
Aloin , a compound found in the exudate of some Aloe species, was the common
ingredient in over-the-counter (OTC) laxative products in the United States until
2002 when the Food and Drug Administration banned it because the companies
manufacturing it failed to provide the necessary safety data. Aloe vera has potential
toxicity, with side effects occurring at some dose levels both when ingested or applied
topically. Although toxicity may be less when aloin is removed by processing, Aloe
vera that contains aloin in excess amounts may induce side effects.A two-
year National Toxicology Program (NTP) study on oral consumption of
nondecolorized whole leaf extract of Aloe vera found evidence of carcinogenic
activity in male and female rats. The NTP says more information is needed to
determine the potential risks to humans.
Aloe vera juice is marketed to support the health of the digestive system, but there is
neither scientific evidence nor regulatory approval to support this claim.The extracts
and quantities typically used for such purposes appear to be dose-dependent for toxic
effects.

7. Blackberry is edible and medicinal. The plant was used extensively by the
Native American tribes, and it had many other surprising uses.
The leaf is more commonly used as a medicinal herb, but the root also has
medicinal value. Young edible shoots are harvested in the spring, peeled
and used in salads.
Delicious Blackberries are edible raw or made into jelly or jam. The root-
bark and the leaves are astringent, depurative, diuretic, tonic and
vulnerary. They make an excellent alternative medicine for dysentery,
diarrhea, hemorrhoids, and cystitis.
The most astringent part is the root. Orally, they are used to treat sore
throats, mouth ulcers and gum inflammations. A decoction of the leaves
is useful as a gargle in treating thrush and also makes a good general
mouthwash. The presence of large amounts of tannins that give
blackberry roots and leaves an astringent effect useful for treating
diarrhea are also helpful for soothing sore throats. A medicinal syrup is
also made from Blackberry, using the fruit and root bark in honey for a
cough remedy.

9. Cattle—cowsare the most common type of large domesticated ungulates. They
are a prominent modern member of the subfamily Bovinae, are the most
widespread species of the gens Bos, and are most commonly classified
collectively as Bos taurus. Cattle are raised as livestock for meat (beef and veal),
as dairy animals for milk and other dairy products, and as draft animals (oxen or
bullocks that pull carts, plows and other implements). Other products
include leather and dung for manure or fuel. In some regions, such as parts of
India, cattle have significant religious meaning. From as few as 80 progenitors
domesticated in southeast Turkey about 10,500 years ago , according to an
estimate from 2003, there are 1.3 billion cattle in the world. In 2009, cattle
became one of the first livestock animals to have a fully mapped genome. Some
consider cattle the oldest form of wealth, and cattle raiding consequently one of
the earliest forms of theft.

10. Every product from cow is useful. If you talk in terms of input and output, cow
takes grass and gives many useful products. So most efficient natural
machine blessed to us.
Cow is the only animal whose dung doesn't stink and rather gives good smell.
We can generate energy from its manure. Its manure is used as a natural
fertilizer. Also cows dung acts as mosquito repellent, concept used in Indian
Villages. Smelling cows dung gives convenient normal delivery to a pregnant.
Cow's urine has many nutrients and minerals.
Cow's Ghee made food items stay for long months as it
has preservative nature. It give dairy products which are less fat contained and
good for health. Dairy products from cow generates no cholesterol.
According to "Vedas" Cow is the only animal made by maharishi's and not by
Brahma and worshiped by Hindus. They believe that there is no other
bigger sin than killing a cow.

12. The horse is one of two extant subspecies of Equus ferus. It is an odd-toed
ungulate mammal belonging to the taxonomic family Equidae. The horse
has evolved over the past 45 to 55 million years from a small multi-toed creature into
the large, single-toed animal of today. Humans began to domesticate horses around
4000 BC, and their domestication is believed to have been widespread by 3000 BC.
Horses in the subspecies caballus are domesticated, although some domesticated
populations live in the wild as feral horses. These feral populations are not true wild
horses, as this term is used to describe horses that have never been domesticated,
such as the endangered Przewalski's horse, a separate subspecies, and the only
remaining true wild horse. There is an extensive, specialized vocabulary used to
describe equine-related concepts, covering everything from anatomy to life stages,
size , colors, markings, breeds, locomotion, and behavior.
Horses' anatomy enables them to make use of speed to escape predators and they
have a well-developed sense of balance and a strong fight-or-flight response.
Related to this need to flee from predators in the wild is an unusual trait: horses are
able to sleep both standing up and lying down. Female horses, called mares, carry
their young for approximately 11 months, and a young horse, called a foal, can stand
and run shortly following birth. Most domesticated horses begin training
under saddle or in harness between the ages of two and four. They reach full adult
development by age five, and have an average lifespan of between 25 and 30 years.