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BIOLOGY CRASH COURSE EXAM LATEST VERSION -2025/2026-
100+ QUESTIONS AND VERIFIED ANSWERS ALL THE BEST
Observation
Information obtained through the senses.
Data
evidence; information gathered from observations
hypothesis
A testable prediction.
experiment
A design to test a hypothesis.
independent variable
The variable changed, or manipulated, in an experiment.
dependent variable
The variable that is measured, or observed, in an experiment.
constant
All of the factors that are kept the same in an experiment.
relative dating
Estimates the age of a fossil based on its placement in strata (earth) layers.
radiometric dating
Uses radioactive isotopes to determine the age of a fossil.
isotope
, 2
Atoms of the same element with the same number of protons, but different
number of neutrons.
half-life
The amount of time it takes for half of the isotope to decay into a different
element.
index fossil
Organisms that existed only a short period of time but over a large geographic
area.
geologic time scale
A representation of the history of Earth.
atom
The smallest part of an element.
element
One particular type of an element. Cannot be broken down further.
compound
A substance made of atoms of different elements that are bonded together.
ionic bond
A bond shared between metal and nonmetal atoms.
covalent bond
A bond shared between nonmetal atoms.
molecule
A group of atoms bonded together. The smallest unit of a compound.
monomer
small chemical unit that makes up a polymer
BIOLOGY CRASH COURSE EXAM LATEST VERSION -2025/2026-
100+ QUESTIONS AND VERIFIED ANSWERS ALL THE BEST
Observation
Information obtained through the senses.
Data
evidence; information gathered from observations
hypothesis
A testable prediction.
experiment
A design to test a hypothesis.
independent variable
The variable changed, or manipulated, in an experiment.
dependent variable
The variable that is measured, or observed, in an experiment.
constant
All of the factors that are kept the same in an experiment.
relative dating
Estimates the age of a fossil based on its placement in strata (earth) layers.
radiometric dating
Uses radioactive isotopes to determine the age of a fossil.
isotope
, 2
Atoms of the same element with the same number of protons, but different
number of neutrons.
half-life
The amount of time it takes for half of the isotope to decay into a different
element.
index fossil
Organisms that existed only a short period of time but over a large geographic
area.
geologic time scale
A representation of the history of Earth.
atom
The smallest part of an element.
element
One particular type of an element. Cannot be broken down further.
compound
A substance made of atoms of different elements that are bonded together.
ionic bond
A bond shared between metal and nonmetal atoms.
covalent bond
A bond shared between nonmetal atoms.
molecule
A group of atoms bonded together. The smallest unit of a compound.
monomer
small chemical unit that makes up a polymer
