Biology ch. 1

To observe and learn about the natural world.

Learning about the natural world.

act of noticing and describing events or processes in a careful, orderly way

• 1. observing and asking questions
• 2. making inferences and forming hypothesis
• 3. conducting controlled experiments
• 4. collecting and analyzing data
• 5. drawing conclusions

logical interpretation based on what scientists already know

scientific explanation for a set of observations that can be tested in ways that support or reject it

all variables should be kept unchanged or controlled

variable that is deliberately changed

variable that is observed and that changes in response to the independent variable

exposed to the same conditions as the experimental group except for one independent variable

• detailed records of experimental observations
• gathering info

• curiosity
• skepticism
• open mindedness
• creativity

publishing peer reviewed articles in scientific journals allow researchers to share new ideas and test and evaluate each others work.

well-tested explanation that unifies broad range of observations and hypotheses that enables scientists to make accurate predictions about new situations

Particular preference or point of view that is personal, rather than scientific

Study of life

• Made up of basic units called cells
• are based on a universal genetic code,
• obtain and use materials and energy,
• grow and develop,
• reproduce,
• respond to their environment,
• maintain a stable internal environment,
• and change over time

Genetic code

Signal two it's an organism responds

Cells from two parents unite to form the first south of the new organism

A single organism produces offspring identical to itself

Organisms expend energy to keep conditions inside their cells with in certain limits

The combination of chemical reactions in which an organism builds up for break down materials

• Cellular basis of life
• Information and heredity
• Matter and energy
• Growth, development, and reproduction
• Homeostasis
• Evolution
• Structure and function
• Unity and diversity of life
• Interdependence in nature
• Science as a way of knowing

All forms of life on earth are connected into the "living planet "

Metric system when collecting data and performing experiments