General Biology Test 1 Review | Questions & Answers (100 %Score) Latest Updated
2024/2025 Comprehensive Questions A+ Graded Answers | With Expert Solutions
Taxonomy - the science of classification. (placing organisms in categories according to their similarities).
Scientific Method - a series of steps followed to solve problems including collecting data, formulating a
hypothesis, testing the hypothesis, and stating conclusions.
Theory - an idea containing ideas to back it up.
Observation vs Inference - observation is something that you can see, touch, smell, and hear (no
guesses). inference is using your observations to make a guess about an outcome or object.`
Independent Variable - (statistics) a variable whose values are independent of changes in the values of
other variables.
Dependent Variable - the variable that is measured in an experiment.
Unicellular - to have one cell.
Mulitcellular - to have many cells.
Eukaryotic - cells that have a nucleus.
Prokaryotic - cells that do not have a nucleus.
Ingestive Heterotrope - an organism that contains a mouth in which it can feed with.
Atom - smallest particle of an element.
, Molecule - two or more atoms held together by covalent bonds.(smallest unit of most compounds).
Element - any of the more than 100 known substances (of which 92 occur naturally) that cannot be
separated into simpler substances and that singly or in combination constitute all matter.
Compound - to elements bonded together.
Acid - compound that forms hydrogen ions (H+) in solution.
Base - Comound that forms hydroxide ions (OH-) in solution.
pH - a value that indicated the acidity or alkalinity of a solution on a scale of 0-14, based on the
proportion of H+ ions.
Protons - positively charged particles in the nucleus of an atom.
Neutrons - the particles of the nucleus that have no charge.
Electrons - negatively charged particles found outside the nucleus.
Radioactive Isotopes - nuclei are unstable in these atoms and they break down at a constant rate over
time.
Ionic Bond - a bond formed by positive and negative ions.
Covelant Bond - two atoms sharing electrons.
Adhesion - water molecules adhere to polar surfaces.
Cohesion - water molecules cling together with hydrogen bonds.
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