Biology 1001 - Mid-term Review

1.) Decent with modification. (Modern species arose from a series of ancestors)

2.) Natural Selection.

1.) Individual traits are inhertied + can be passed on through populations.

2.) There are more offspring produced than survive.

3.) Species adapt to their environments.

1.) Occurs in populations NOT individuals.
2.) Occurs over millions of years.
3.) Traits do not adapt in hope of future use.

Using observations to make generalizations.

Use premis to make predictions.

- Investigaes variable of interst
- Cancels out other variables.
- Doesn't hold other veriables constant.

- Order Structure

- Response to evironment
- Growth + development
- Energy processing
- Regulation
- Reporduction
- Adaptions

New properties that arise as life moves forward.

Reducing complex systems to simpler parts.

If a whole is broken into parts it may not function properly or at all.

Combination of compents that function together.

Studies behavior of whole systems based on interaction of parts.

Biosphere: Everything
Ecosystems: All living things and the non-living things that they interact with.
Communities: All species
Populations: All individuals of speices
Organisms: Individual
Organs: Body part that carries out a particular funtion.
Tissues: Groups of cells working together
Cells: Unit of structure/function
Organelles: Functional compent of a cell.
MoleculesChemical sturcture.

Eurkaryotic cells have a true membrane-enclosed nucleous. Prokatyotic cells do not, DNA is spread througout the cell.

1.) Domain
2.) Kingdom
3.) Phyla
4.) Class
5.) Order
6.) Family
7.)Genus
8.) Species