biology: the science of life Flashcards
biology
the science of life
theory
an explanation of a natural phenomenon supported by many observations and experiments
homeostasis
the regulation of an organism’s internal conditions in order to maintain stability
observation
a direct method of gathering information in an orderly way
inference
inferences are made by combining what you know with what you have learned in order to draw logical conclusions
hypothesis
a testable explanation of a situation
steps of the scientific method
observe, question, form a hypothesis, experiment, collect/analyze data, state conclusions, report findings
8 characteristics of life
cell structure, levels of organization, growth and development, reproduction, responses to stimuli, adaptations, homeostasis, and energy requirements
how to write a hypothesis
if then form
quantitative data
numerical values and measurements
qualitative data
information gathered by the senses
what does “all organisms have a cell structure” mean
all organisms have at least one cell
levels of organization
atoms, molecules, macromolecules, cells, tissues, organs, organ systems, organisms
11 body systems
digestive, endocrine, integumentary, immune, nervous, skeletal, reproductive, excretory, respiratory, muscular, circulatory