Introduction Flashcards
Environmental biology
Study of organisms in relation with their environment. This includes interaction between the organisms and their inorganic and organic environment, especially as it relates to human activities
Molecular biology
Deals with the structure of organisms, the cells and their organelles at molecular level.
Microbiology
Study of microorganisms which include bacteria, viruses, Protozoa and microscopic algae and fungi.
Freshwater biology
Deals with organisms living in freshwater bodies i.e rivers, lakes, and the physical parameters of these water bodies
Marine biology
Study of life in seas and oceans. This incomes the study of marine life and the physical and chemical characteristics of the sea acting as factors for marine life.
Parasitology
Deals with study of parasites; their structure, mode of transmission, life history and host, parasite relationships.
Human biology
Study of man; including form and structure, function, histology, anatomy, morphology, evolution, genetics, cell biology and ecological studies etc of humans.
Social biology
Deals with study of social behavior and communal life of humans
Biotechnology
Deals with the use of living organisms, systems, or processes in manufacturing and service industries.
Percentage of oxygen in body mass
65%
Percentage of carbon in body mass
18%
Percentage of hydrogen in body mass
10%
Percentage of nitrogen in body mass
3%
Percentage of calcium in body mass
2%
Percentage of phosphorous in body mass
1%
Percentage of potassium in body mass
0.35%
Percentage of sulphur in body mass
0.25%
Percentage of chlorine in body mass
0.15%
Percentage of sodium in body mass
0.15%
Percentage of magnesium in body mass
0.05%
Percentage of iron in body mass
0.004%
Trace bio elements in body mass
Copper
Manganese
Since
Iodine
Biosphere
The part if the earth inhabited by living organisms- including both the living and no living components.
Ecosystem
A community together with its nonliving surroundings.
Community
Two or more different populations of different species living and interacting in the same area.
Population
Members if one species inhabiting the same area.
Species
Very similar, potentially interbreeding organisms.
Multicellular organism
An individual living thing composed of many cells.
Organ system
Two or more different organs working together in the execution of a specific body function.
Organ
A structure normally composed of several tissue types that form a functional unit.
Tissue
A group of cells that perform a specific function.
Cell
The unit of life.
Organelle
A structure within a cell that performs a specific function
Micro molecules and macro molecules
A combination of atoms
Atom
The smallest particle if an element that retains the properties of that element.
Subatomic particle
Particles that make up an atom
Organic molecule
A molecule containing both carbon and hydrogen
Inorganic molecule
Molecules which doesn’t donating hydrogen and oxygen.
Biome
Large regional community primarily determined by climate
Technique of vaccination was invented by…
…Edward Jenner in 1796
Scientists in Scotland succeeded in clinging sheep in…
…1997
Bioremediation
Removal or degradation of environmental pollutants or toxic materials.
How man species are known to man?
25,00,000
How many species are insects?
53.1%
How many species are vascular plants?
17.6%
How many species are animals other than insects?
19.9%
How many species are fungi, Protozoa, algae and prokaryotes?
9.4%
