Biology..

I really have the enthusiastic desire in biology even though I've never touched a book
about it since I'm in form 3.I've said to sis that I want to a biologist someday but
She said that I'm just built castle in the air cause I never learn about biology. :P

The above shows the principles of the foundation of modern biology:

Biology(from Greek βιολογος - βίος, bios, "life"; -λογος,-logos , study of) is the science that
studies living organisms.

Biology examines the structure,function,growth,origin,evolution,distribution and classification
of all living things.Five unifying principles form the foundation of modern biology:cell theory,
evolution,gene theory,energy and homeostasis.


Cell Theory-All living organisms are made of one or more cells, the basic living unit of function in organisms. All cells come from preexisting cells that multiply through cell division.

Evolution-Through natural selection and genetic drift, a population's inherited traits change from generation to generations A living organism's traits are encoded in DNa.

Genes- Segments of DNA that, taken as a whole, specify a trait are known as genes. In addition, traits are passed on from one generation to the next by way of these genes. All information transfers from the genotype, the unobservable genetic traits, to the phenotype, the observable physical or biochemical characteristics of the organism. Although the phenotype expressed by the gene may adapt to the environment of the organism, that information is not transferred back to the genes. Only through the process of evolution do genes change in response to the environment.

Homeostasis-The physiological processes that allow an organism to maintain its
interval enviroment not withstanding its external environment.

Energy- The attribute of any living organism that is essential for its state. (e.g. required for
metabolism)


Examples of structures in cells:






















What are the needs to be a biologist?

their analytical and critical mind
inquisitive mind
love to see = OBSERVE and then stand back , have a few reflection on things that have been observed,read , read

and lastly to appreciate the discipline itself as a tool to
a) bring you closer to GOD
b) the contribution / impact it has on our civilization/ knowledge tradition