chapter 1- what is biology Flashcards
name the parts of scientific investigation
observation, ask question, form hypothesis, test hypothesis, draw conclusion, and communicate resuts
dependent variable
the affected variable
independent variable
this variable affects the dependent variable
a representation of part of the real world
model
a broad explanation for events that is widely accepted as true
scientific theory
the science of life is
biology
how is something classified as living
responds to the environment, grows and develops, produces offspring, maintains homeostasis, has complex chemistry, and consists of cells.
the proccess by which living things give rise to offspring
reproduction
homeostasis
the process of maintaining a stable internal environment
what are the four unifying principles that form the basis of biology
cell theory, gene theory, homeostasis, and evolution
what is gene theory about
its the idea that the characteristics of living things are controlled by genes, which are passed from parents to their offspring.
what is evolution
the change in the characteristics of living things over time
what is natural selection
In natural selection, some living things produce more offspring than others, so they pass more genes to the next generation than others do.
what is adaptation
a characteristic that helps a living thing survive and reproduce in a given environment.
what is an organism
an individual living thing
