Cumulative Review for Bio 1 (Study of Life) Flashcards
Is life organized?
Yes-unicellular and multicellular
What does life require?
Energy
Producers (autotrophs)
Make their own food using energy from nonliving (inorganic) environment like the sun
Consumers (heterotrophs)
Eat organic material (food) from living or dead organisms as their energy source
Decomposers
Consumers that return many of nutrients in their food to nonliving environment
Examples of activities that transfer energy
Photosynthesis, Cellular Respiration, Fermentation, ATP Synthesis, and ATP breakdown
Homeostasis
Life maintains internal consistency
Signs of life
Reproduction, growth, development
Asexual reproduction vs. Sexual Reproduction
yields identical copies/yields variation
Life Evolves: Evolution by natural selection explains
how all species share a common ancestor
Three Domains of Life
Archaea, Bacteria, Eukarya
Four Kingdoms of Eukarya Domain
Plantae, Animalia, Fungi, Protista
Independent Variable
Factor that investigator manipulates
Dependent Variable
Measurement to determine the outcome of experiment
Standardized Variables
Held constant for all subjects of experiment
Theory (like a hypothesis)
Testable explanation of data and can be used to make predictions (theory has more supported evidence, ties together more existing observations)
Experimental Control Groups
Basis for comparison to experimental group
If an experiment can be repeated and achieve same results, the results are
less likely due to chance alone