Zusammenfassung der Ressource
Chapter 1:
Studying Life
- Biology
- The study of life
- The characteristics
of living things
- 1) Made of cells
- A cell is the smallest unit of an
organism that is considered
alive
- Organisms can be
unicellular or multi cellular
- 2) Reproduce
- Sexual Reproduction
- 2 cells from different
parents unite
- Asexual Reproduction
- 1 cell splits into 2
- 3) Genetic Code
- Info is carried on DNA molecules
- Info is passed from parent to offspring
- 4) Grow/Develop
- Grow
- Cells get larger
- Devlope
- Cells multiply and differentiate
- Parent Cell
- Skin Cell
- Bone cell
- Blood Cell
- ECT..
- 5) Need Materials
and Energy
- Food
- Water
- Air
- 6) Respond to their environment
- Stimulus - Signal to
which an organism
responds
- Internal
- External
- 7) Maintain Internal balance
- Homeostasis - Process
of keeping conditions
stable
- Sweating
- Shivering
- 8) Populations Change Overtime
- Terms
- Science
- An organized way of
gathering and analyzing
evidence about the
natural world, its process
- Observation
- The act of noticing
and describing events
or processes in a
careful, orderly way
- Independent Variable
- The variable that is
deliberately changed
- Dependent Variable
- Variable that is observed and that
change in response to the
independent variable.
- Qualitative Data
- #s obtained by counting
or measuring
- Qualitative Data
- Descriptive and involve
characteristcs that cannot
usually be counted
- Hypothesis
- A scientific explanation
for 2 sets of observations
that can be tested in ways
that support or reject it
- Theory
- A well-tested explanation
that unifies a broad range
of observations