Science chapter 1

Carolus Linnaeus

Each branch follows a new characteristic (lungs, fur, opposable thumbs)

Each characteristic is observed in all the species to its right.

Aristotle

• maintaining certain conditions ensures that cells can function
• if cells cannot function normally, then an organism might become sick or even die

a change in an organism's environment that causes a response

• internal: hunger, thirst
• external: temperature

• organized
• grow and develop
• reproduce
• respond
• maintain certain internal conditions
• use energy

the cell

multicellular organisms increase in size, cells become specialized

living things that are made of 2 or more cells

an organisms ability to maintain steady internal conditions

gives each organism a two-word scientific name

a group of organisms with similar traits

a group of similar species

a branched diagram that show the relationships among organisms

uses light and lenses to enlarge an image

one lens to magnify an object

use a magnetic field to focus a beam of electrons through an object of onto an objects surface

living things with one cell

things that have al the characteristics of life

physical or molecular similarities

a common name may refer to many types of organisms

there may be several common names for one organism

• there is only one scientific name for one organism
• cuts down on confusion

multiply the power of the ocular lens by the power of the objective lens

magnification makes objects appear larger than it really is

resolution is how clearly a magnified object can be seen

• first word is the genus name, capitalized (Haplopelma lividium)
• sometimes just the initial (H. lividium)
• second word is species, usually a description of appearance or behavior

• Domain->Kingdom Phyllum
• Class Order Family
• Genus Species

Systematics

• Bacteria
• Archaea (r-key-uh)
• Eukarya (u-care-e-uh)