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level: Module 1

Questions and Answers List

level questions: Module 1

QuestionAnswer
Criteria for Life ~ 1All life forms contain deoxyribonucleic acid, which is called DNA.
Criteria for Life ~ 2All life forms have a method by which they extract energy from the surroundings and convert it into energy that sustains them.
Criteria for Life ~ 3All life forms can sense changes in their surroundings and respond to those changes.
Criteria for Life ~ 4All life forms reproduce.
MetabolismThe sum total of all processes in an organism which convert energy and matter from outside sources and use that energy and matter to sustain the organisms life functions.
AnabolismThe sum total of all processes in an organism which use energy and simple chemical building blocks to produce large chemicals and structures necessary for life.
CatabolismThe sum total of all processes in an organism which break down chemicals to produce energy and simple chemical building blocks.
PhotosynthesisThe process by which green plants and some other organisms use the energy of sunlight and simple chemicals to produce their own food.
HerbivoresOrganisms that eat only plants.
CarnivoresOrganisms that eat only organisms other than plants.
OmnivoresOrganisms that eat both plants and other organisms.
ProducersOrganisms that produce their own food.
ConsumersOrganisms that eat living producers and /or other consumers for food.
DecomposersOrganisms that break down the dead remains of other organisms.
AutotrophsOrganisms that are able to make their own food.
HeterotrophsOrganisms that depend on other organisms for their food.
ReceptorsSpecial structures that allow living organisms to sense the conditions of their internal or external environment.
Asexual ReproductionReproduction accomplished by a single organism.
Sexual ReproductionReproduction that requires two organisms.
InheritanceThe process by which physical and biological characteristics are transmitted from the parent (or parents) to the offspring.
MutationAn abrupt and marked change in the DNA of an organism compared to that of its parents.
Scientific LawA theory that has been tested by and is consistent with generations of data.
HypothesisAn educated guess that attempts to explain an observation or answer a question.
TheoryA hypothesis that has been tested with a significant amount of data.
MicroorganismsLiving creatures that are too small to see with the naked eye.
AbiogenesisThe idea that long ago, very simple life forms spontaneously appeared through chemical reactions.
Prokaryotic CellA cell that has no distinct, membrane-bounded organelles.
Eukaryotic CellA cell with distinct, membrane-bounded organelles.
SpeciesA unit of one or more populations of individuals that can reproduce under normal conditions, produce fertile offspring, and reproductively isolate from other such units.
TaxonomyThe science of classifying organisms.
Binomial NomenclatureNaming an organism with its genus and species name.