basic unit of life? - ANSWER cell
what is the informational molecule of life? - ANSWER DNA
what enables cells to carry out their functions in tissues and organs? - ANSWER
proteins
5 characteristics of life - ANSWER -organization
-energy use
-maintenance of internal constancy
-reproduction, growth, and development
-evolution
population - ANSWER includes members of the same species living at the same place
at the same time
community - ANSWER All the different populations that live together in an area
ecosystem - ANSWER both living and non living components of an area
emergent properties - ANSWER quality that results from interactions of a system's
components
primary producers (autotrophs) - ANSWER organisms that make their own food by
extracting energy and nutrients from non living sources (sun)
Consumers (heterotrophs) - ANSWER obtain energy and nutrients by beating other
organisms
homeostasis - ANSWER process by which organisms maintain a relatively stable
internal environment
Do eukaryotes have a nucleus? - ANSWER Yes, they have a nucleus
Are eukaryotes unicellular or multicellular? - ANSWER both
T/F: hypotheses have to be testable? - ANSWER true
experiment - ANSWER an investigation carried out in controlled conditions
independent variable - ANSWER The experimental factor that is manipulated; the
variable whose effect is being studied.