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Why study Biology
Biology tells how systems and organisms function, and how we live, develop, modify and refine ideas about life.
What are the molecules of life?
- Nucleic acids
What are the most common elements in life?
- C Carbon
- H Hydrogen
- O Oxygen
- P Phosphorous
- S Sulfur
- N Nitrogen
Life’s levels of organization are:
- Organ systems
Reaction by which cells acquire and use energy to grow, survive and reproduce.
Capacity to do work
Type of atom or molecule that has essential role in growth and survival and that an organism cannot make for itself.
- Break down remains / waste.
Everything that is not artificial
Fundamental building blocks of all substances
forms when two or more atoms of the same or different elements join in chemical bonds
Group of individuals fo the same kind of organism in a specified area.
All populations of all species in a specified area
A community interacting with its physical and chemical environment.
Sensing and adjusting conditions of internal environment to maintain favorable conditions.
Helps us check an atom for vacancies
Atoms are chemically inactive if...
It has no vacancies in its outermost shell
A measure of an atom’s ability to pull electrons from other atoms
An attractive force that arises between tow atoms when their electrons interact
Molecules that consist of two or more different elements in proportions that do not vary
An atom with different numbers of electrons and protons
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