This video lecture from Introduction (F.Sc. first year Biology) covers Introduction of Biology. It answers a few questions like what is life? What is meant by Biology and why do we study it. Different related branches of biology studied in the previous classes are also described briefly to have a full idea of what we study in Biology
This video lecture from Introduction (F.Sc. first year Biology) covers: Various fields of Biology in which one can specialize or the fields/areas of specializations which are studied and are under research in the field of Biology
This Chapter covers:
- Biology and some major fields of specialization
- Levels of biological organization
- Disease control; preventive measures
- Protection and conservation of environment
DEFINITION OF BIOLOGY
Biology is the be taught of living organisms. It’s derived from Greek phrases.
CLASSIFICATION OF LIVING ORGANIZATION
consistent with the state-of-the-art classification given with the aid of R.H.Whittaker in 1969, living organisms are divided into 5 most important kingdoms, which might be:
It includes all prokaryotes, unicellular organisms. For illustration micro organism and Cyan bacteria.
It includes unicellular Eukaryotic organisms, which are in between vegetation and animals. E.G. Chlamydomonas, Euglena, Paramecium.
1. KINGDOM FUNGI
It incorporates non-chlorophyllus multi-cell, thallophytic life forms having cell divider. For instance a wide range of growths, unicellular to multi-cell like Mushrooms and Yeast and so forth.
2. KINGDOM PLANTAE
It incorporates all chlorophyllus multi-cell Eukaryotic living beings having cellulose cell divider. For instance apple, red wood and so forth.
3. KINGDOM ANIMALIA
It incorporates all Eukaryotic multi-cell, non-chlorophyllus living beings having no cell divider. For instance Hydra, Earthworm, Human Beings and so forth.
Those living beings, which have genuine membranous structure in their cells, as mitochondria, golgi bodies, endoplasmic reticulum. e.g. All plants, Higher creatures.
Those living beings, which don’t have genuine membranous structure in their cells. e.g. Microbes, Blue green growth.
Every living life form of today have a place with a typical precursor and every specie of life form masterminded no progenitor to descendent request with rest of the gathering developed from one that instantly went before.
BRANCHES OF BIOLOGY
1. MOLECULAR BIOLOGY
It is a late branch of natural science that arrangements with the structure and capacity of the atoms that shape structure of cell and organelles that partake in the organic procedures of a living being (Nucleic corrosive – Protein particle)
2. MICRO BIOLOGY
It manages the investigation of smaller scale living beings (infections, microbes, protozoan and so on)
3. ENVIRONMENTAL BIOLOGY
It manages the investigation of environment and its impact on life forms.
4. MARINE BIOLOGY
It manages the investigation of living beings occupying the ocean a sea, and the physical and concoction attributes of their surroundings.
5. FRESH WATER BIOLOGY
It manages the life staying in new waters, physical and concoction attributes of crisp water bodies influencing it.
It manages the investigation of parasitic living beings, their life cycles, method of transmission and collaboration with their has.
7. HUMAN BIOLOGY
The branch of science manages every single organic part of man with respect to advancement, life systems physiology, wellbeing, legacy and so forth.
8. SOCIAL BIOLOGY
Social science is worried with the social cooperations with in a populace of a given animal categories, particularly in people concentrates on such issue as whether certain conduct are acquired or socially actuated.
This is an extremely late branch present in natural sciences. It manages the utilization of information and systems of designing and innovation for the study and arrangement of issues concerning living creatures especially the individuals.
To take care of the organic issues (any creature or plant sickness or ecological peril), taking after steps are fundamental.
An informed figure or actuality with respect to the natural issue.
Disconnected realities to achieve a general thought that clarify the natural issue.
Precise experimentation, genuine conclusions or results with respect to the natural issues.
The given speculation is checked with the assistance of perception and analyses and after that on the premise of it a hypothesis or administer is set up.
On the off chance that perceptions and investigations work out as expected then speculation is taken valid, other savvy it is dismisses. Just on the premise of genuine speculation a hypothesis is built up.
At the point when hypothesis is turned out to be valid under every single tried condition then it is acknowledged as a law.