Unit 1 Review - Scientific Method and Characteristics of Life

___________a molecule that is present in all living cells and that contains the information that determines the traits a living thing inherits and needs to live.

• Cell

• Stimulus

• Homeostasis

• DNA

Definition: all chemical processes that synthesize or break down materials within an organism

• system

• DNA

• metabolism

• system

Definition: basic unit of life

• system

• DNA (Deoxyribonucleic Acid)

• metabolism

• cell

Definition: regulation and maintenance of constant internal conditions in an organism

• ecosystem

• homeostasis

• evolution

• adaptation

Definition: collection of organisms and nonliving things, such as climate, soil, water, and rocks in an area

• ecosystem

• homeostasis

• evolution

• adaptation

Definition: molecule that stores genetic information in all organisms

• system

• DNA

• metabolism

• cell

Definition: changing, organized group of related parts that interact to form a whole

• system

• DNA

• metabolism

• cell

Definition: group of organisms so similar to one another that they can breed and produce fertile offspring

• organism

• biology

• species

• biodiversity

• biosphere

Definition: any individual living thing

• organism

• biology

• species

• biodiversity

• biosphere

Definition: proposed explanation for a wide variety of observations and experimental results

• independent variable

• dependent variable

• constant

• theory