Bio chapter 1

Biology

The scientific study of life.

Scientific Method

The process that generates scientific knowledge.

Hypothesis

possible answers to the question that must be testable and falsified

Theory

A big idea that has been tested multiple times and supported by evidence.

Observation

A testable question that is specific & measurable.

Prediction

Based off the hypothesis, has a format of if then.

Falsifiable

Being able to be disproven.

Variable

Factors in an experiment that can change.

Control group

Part of the experiment that stays consistent.

Eight properties of life

Organized cells: a cell is the smallest unit of life & most are unicellular

Response to stimuli: With the environment around them

maintain homeostasis: Action required for life occurs when the environment is perfect(h2o,ph)

adaptation: Increases the reproductive potential of an organism

evolution: Naturally adapting to their environment and different species

energy: Living organisms use energy & consume nutrition to perform functions

growth: happens during cell division & develop allowing organisms to age & reproduce

reproduce: can be sexual or asexual

Adaptation

The reproductive potential of an organism

Homeostasis

Needs a constant environment such as pH, water, etc.

Metabolism

All cell reactions that provide the body with energy.

Atom

The smallest unit of matter.

Molecule

Composed of two or more atoms held together by chemical bonds.

Macromolecules

Large complex molecules essential for life.

Organelles

Specialized structures formed by a combination of macromolecules.

Cell

The smallest unit of life.

Prokaryotes

Very small living things that have no nucleus, simple organisms.

Eukaryotes

Living things made up of cells that have a nucleus, more complex organisms.

Tissues

Groups of similar cells working together to perform a specific function.

Organs

Structures composed of multiple tissues that work together to carry out specific functions.

Organ System

Groups of organs that collaborate to perform complete biological functions.

Organism

Complete individual composed of interacting organ systems.

Adaptation

Increases the reproductive potential of an organism.

Response to stimuli

Ability of organisms to respond to the environment around them.

Growth

Occurs during cell division and development, allowing organisms to age and reproduce.

Reproduce

Can be sexual or asexual.