Showing posts with label Earth. Show all posts
Showing posts with label Earth. Show all posts

Saturday, October 3, 2009

Scope and importance of botany

Composite image to illustrate the diversity of...Image via Wikipedia
Botany is the scientific study of plant life. As a branch of biology, it is also called plant science(s), phytology, or plant biology.


Botany covers a wide range of scientific disciplines that study plants, algae, and fungi including: structure, growth, reproduction, metabolism, development, diseases, and chemical properties and evolutionary relationships between the different groups.

The study of plants and botany began with tribal lore, used to identify edible, medicinal and poisonous plants, making botany one of the oldest sciences. From this ancient interest in plants, the scope of botany has increased to include the study of over 550,000 kinds or species of living organisms.


Scope and importance of botany



As with other life forms in biology, plant life can be studied from different perspectives, from the molecular, genetic and biochemical level through organelles, cells, tissues, organs, individuals, plant populations, and communities of plants. At each of these levels a botanist might be concerned with the classification (taxonomy), structure (anatomy and morphology), or function (physiology) of plant life.

Historically, botany covers all organisms that were not considered to be animals. Some of these "plant-like" organisms include fungi (studied in mycology), bacteria and viruses (studied in microbiology), and algae (studied in phycology). Most algae, fungi, and microbes are no longer considered to be in the plant kingdom. However, attention is still given to them by botanists, and bacteria, fungi, and algae are usually covered in introductory botany courses.

The study of plants has importance for a number of reasons. Plants are a fundamental part of life on Earth. They generate the oxygen, food, fibres, fuel and medicine that allow higher life forms to exist. Plants also absorb carbon dioxide through photosynthesis, a minor greenhouse gas that in large amounts can effect global climate. It is believed that the evolution of plants has changed the global atmosphere of the earth early in the earth's history and paleobotanists study ancient plants in the fossil record. A good understanding of plants is crucial to the future of human societies as it allows us to:

* Produce food to feed an expanding population
* Understand fundamental life processes
* Produce medicine and materials to treat diseases and other ailments
* Understand environmental changes more clearly


Terminolgy watch

Confusing Terminology in Platial
1. The study of human populations, including their size, growth, density and distribution as well as statistics regarding birth, marriage, disease and death
Demography

2. The study of the formation and structure of the features of the surface of the Earth or another planet’s surface
Geomorphology

3. The study of the properties, distribution, use and circulation of the earth’s water and the atmosphere in all of its forms
Geology

4. Scientific study of oceans
Oceanography

5. The study of life in prehistoric times by using fossils
Paleontology

6. The study of rocks with respect to their occurrence, structure, origin, history, and mineral content
Petrology

7. Science deals with the production and study of Maps and charts
Cartography

8. The study and description or mapping of the entire world or the universe is called
Cosmography

9. The study of biological function and mechanics, and the application of them to machine design is called
Bionics

10. A branch of zoology dealing with the study of sea shells and the animals that inhabit them is called
Conchology

11. The scientific study of climates
Climatology

12. The study of, or the science of determining, the order in which things occur
Chronology

13. The study of recurring cycles of events in the natural world
Chronobiology

14. The application of statistical techniques to biological studies
Biometry

15. The scientific study of the chemical substances, processes, and reactions that occur in living
Biochemistry

16. The study of Crimes, Criminals and the punishment of criminals is called
Criminology

17. The preparation of maps in which specific areas or regions are delineated and often highlighted
Chorography

18. The scientific study of Bacteria is called
Bacteriology

19. Study of projectiles is called
Ballistics

20. The study of the physical properties, origin, and development of celestial objects and events is called
Astrophysics

21. The scientific study of ancient cultures through the examination of their material remains
Archaeology

22. The cultivation of trees and shrubs for study, ornamentation, or profit
Arboriculture

23. The branch of science that studies the physical structure of animals, plants, and other organisms
Anatomy

24. The branch of botany concerned with the scientific study of algae
Algology or Phycology

25. The scientific study of the universe, especially of the motions, positions, sizes, composition, and behavior of celestial objects is called
Astronomy

26. The branch of statistics that deals with gas in equilibrium and with gases and bodies in them is called
Aerostatics

27. The branch of meteorology concerned with the study of clouds
Nephology

28. The study of the positions of the Moon, Sun, and other planets in the belief that their motions affect human beings
Astrology

29. The branch of medicine concerned with the study and treatment of diseases of the kidneys
Nephrology

30. The scientific study of Earth’s atmosphere especially its patterns of climate and weather
Meteorology

31. The scientific study of units of measurements
Metrology

32. The relationship between organism and its environment is called
Ecology

33. The science that deals with all forms of life, including their classification, physiology, chemistry, and interactions
Biology

34. The branch of geology that examines the formation and structure of the features of the surface of the Earth or another planet’s surface
Geomorphology

35. .....is the science of the intricate series of relationship between living organisms and their living and non living surroundings
Ecology



37.Bibliography given in a research report helps :
those interested in further research and studying the problem from another angle

38. The scientific study of lakes and other bodies of fresh water, including their physical and biological features
Limnology

39. The study of the bumps on the outside of the skull, based on the now discredited theory that these bumps reflect somebody’s character
Phrenology

40. The science or study of drugs is
Pharmacology

41. Cultivation of flowers
Floriculture

42. The keeping of bees, especially for commercial purposes
Apiculture

43. The science or practice of growing grapevines, especially for wine making
Viticulture

44. The controlled breeding, hatching, and rearing of fish, especially for scientific or commercial purposes
Pisciculture


46.  The branch of anatomy concerned with the study of the structure and functions of bones
Osteology

47. The scientific study of sleep or hypnosis
Hypnology

48. The study of characteristics of rocks is
Lithology

49. The study of fish
Ichthyology

50. The science in which chemicals are used for the treatment of diseases is known as
Chemotherapy

Friday, October 2, 2009

Interesting facts

Lightning over the outskirts of Oradea, Romani...
Lightning strikes about 6,000 times per minute on this planet!
-A chameleon's tongue is twice the length of its body.
-A chimpanzee can learn to recognize itself in a mirror, but monkeys can't.
-A rat can last longer without water than a camel can.
-About 10% of the world's population is left-handed.
-A typical bed usually houses over 6 billion dust mites.
-A person afflicted with hexadectylism has six fingers or six toes on one or both hands and feet
-A woodpecker can peck twenty times a second.
-A zebra is white with black stripes.
- Porpoises and dolphins communicate with each other by squeaking, growling, moaning, and whistling. Porpoises and dolphins are mammals. There are about 40 species or kinds of porpoises and dolphins. Most porpoises and dolphins navigate by using "echolocation". The largest member of the dolphin family is called an orca or killer whale.
- The hippopotamus gives birth under water and nurses its young in the river as well, though the young hippos do come up periodically for air.
-A cow gives nearly 200,000 glasses of milk in her lifetime
The world's largest mammal, the blue whale, weighs 50 tons at birth. Fully grown, it weighs as much as 150 tons.
The world's largest rodent is the Capybara. An Amazon water hog that looks like a guinea pig, it can weigh more than 100 pounds.
The world's smallest mammal is the bumblebee bat of Thailand, weighing less than a penny.
-- How the wind blows. As the sun warms the earth’s surface, the atmosphere warms too. Some parts of the earth receive direct rays from the sun all year and are always warm. Other places receive indirect rays, so the climate is colder. Warm air, which weighs less than cool air, rises. Then cool air moves in and replaces the rising warm air. This movement of air is what makes the wind blow.
- Dolphins sleep with one eye open!

--Why do we might feel warmer wearing a dark-colored jacket than a light-colored one? . Dark colors  absorb light energy. Light colors and white reflect light energy. When light shines on your dark jacket, the jacket fabric absorbs light energy. The absorbed light energy causes electrons in the atoms of the jacket to vibrate. This activity releases heat energy, which makes the jacket—and you—warmer. That's why we like to wear more dark colors in winter and more light colors in summer.
-While sleeping, one man in eight snores, and one in ten grinds his teeth.
-At 188 decibels, the whistle of the blue whale is the loudest sound produced by any animal.
--A flute made of bone is the oldest playable musical instrument in the world. It’s a flute carved from a bird’s wing bone more than 9,000 years ago. The flute was discovered with other flutes at an ancient burial site in China. 
- The fastest dog, the greyhound, can reach speeds of upto 41.7 miles per hour. The breed was known to exist in ancient Egypt 6,000 years ago
-- Glue dates back to prehistoric times. Artists once mixed colorings with raw eggs, dried blood, and plant juices to make sticky paints for cave murals. Later, ancient Egyptians and other people learned to make stronger glues by boiling animal bones and hides. Today companies make glues using synthetic substances.
-A cat sees about six times better than a human at night because of the tapetum lucidum , a layer of extra reflecting cells which absorb light.
-A cat uses  whiskers to determine if a space is too small to squeeze through. The whiskers act as  antennae, helping the animal to judge the precise width of any passage.
-A cat will clean itself with paw and tongue after a dangerous experience or when it has fought with another cat. This is  an attempt by the animal to soothe its nerves by doing something natural and instinctive.
-The grizzly bear can run as fast as the average horse!! 
- The female lion does more than 90% of the hunting while the male simply prefers to rest. !!
- A jellyfish is 95 percent water!
- At birth, a panda is smaller than a mouse and weighs about four ounces. 
-Fingernails grow nearly 4 times faster than toenails!
-You blink over 10,000,000 times a year!
- Of all the words in the English language, the word ' set '  has the most definitions!
- The sun is 330,330 times larger than the earth!- 
- Dogs and cats, like humans, are either right or left handed... or is that paws?!
- A giraffe can clean its ears with its 21-inch tongue!
- A crocodile cannot stick its tongue out.
-A cat's jaws cannot move sideways.
-More people are killed annually by donkeys than die in air crashes.
- "Go."   is the shortest complete sentence in the English language
The vocabulary of the average person consists of 5,000 to 6,000 words.
- No word in the English language rhymes with "month".
- An ostrich's eye is bigger than its brain.
-An ostrich's eye is bigger than its brain.
The average person laughs about 15 times a day.
The average person walks the equivalent of twice around the world in a lifetime.
- All polar bears are left handed.
-Ants don't sleep.