BIO 101 EXAM 1 (TCC NORFOLK,
MURRAY) QUESTIONS & VERIFIED
CORRECT ANSWERS
the body's ability to maintain relatively stable internal conditions, even though the outside
world changes continually; the ability of an organism to maintain constant internal conditions -
correct answer ✔✔Homeostasis
the component that you're actually testing to see what will happen; variable that you directly
manipulate (and causes change) - correct answer ✔✔Independent Variable
usually something you measure to know what your independent variable did; the change that
happens dependent/based on what I did; measurable - correct answer ✔✔Dependent Variable
all outside factors that may affect your results and must keep these the same every time you do
the experiment; also called constants or controls - correct answer ✔✔Standardized Variables
the part of the experiment that doesn't change - correct answer ✔✔Control
an educated guess in statement form (NOT a question) that is testable and falsifiable; should
include the independent and dependent variables - correct answer ✔✔Hypothesis
repeatedly tested a hypothesis and almost always get the same results - correct answer
✔✔Theory
What is homeostasis? What happens if our body cannot maintain homeostasis? - correct
answer ✔✔-Homeostasis is the body's ability to maintain internal constancy despite changes in
the environment
, -If our bodies cannot maintain homeostasis, then we die
What is the difference between scientific hypothesis, theories, and law? - correct answer ✔✔-
Hypothesis: an educated guess that can be tested
-Theory: repeatedly tested, generally accepted, and confirmed explanation for why things
happen based on evidence
-Law: describes what will happen 100% of the time and is backed and proven by math (in
mathematical formulas)
a pure substance that cannot be broken into simpler substances by ordinary chemical methods;
each has unique properties; made up of atoms - correct answer ✔✔Elements
smallest particles of an element with properties of that element; give each element its physical
and chemical properties; unique building blocks for each element; has a constant # of protons;
combine with other atoms to form molecules - correct answer ✔✔Atoms
2 or more atoms bonded together - correct answer ✔✔Molecule
positively charged particle that resides in the nucleus of an atom with a mass of 1 and a charge
of +1 - correct answer ✔✔Proton
negatively charged particle that travels in the space around the nucleus with negligible mass
and a charge of -1 - correct answer ✔✔Electron
particle that carries no charge (neutral) and resides in nucleus with a mass of 1 and no charge -
correct answer ✔✔Neutron
the path of an electron around the nucleus of an atom - correct answer ✔✔Electron Orbit
MURRAY) QUESTIONS & VERIFIED
CORRECT ANSWERS
the body's ability to maintain relatively stable internal conditions, even though the outside
world changes continually; the ability of an organism to maintain constant internal conditions -
correct answer ✔✔Homeostasis
the component that you're actually testing to see what will happen; variable that you directly
manipulate (and causes change) - correct answer ✔✔Independent Variable
usually something you measure to know what your independent variable did; the change that
happens dependent/based on what I did; measurable - correct answer ✔✔Dependent Variable
all outside factors that may affect your results and must keep these the same every time you do
the experiment; also called constants or controls - correct answer ✔✔Standardized Variables
the part of the experiment that doesn't change - correct answer ✔✔Control
an educated guess in statement form (NOT a question) that is testable and falsifiable; should
include the independent and dependent variables - correct answer ✔✔Hypothesis
repeatedly tested a hypothesis and almost always get the same results - correct answer
✔✔Theory
What is homeostasis? What happens if our body cannot maintain homeostasis? - correct
answer ✔✔-Homeostasis is the body's ability to maintain internal constancy despite changes in
the environment
, -If our bodies cannot maintain homeostasis, then we die
What is the difference between scientific hypothesis, theories, and law? - correct answer ✔✔-
Hypothesis: an educated guess that can be tested
-Theory: repeatedly tested, generally accepted, and confirmed explanation for why things
happen based on evidence
-Law: describes what will happen 100% of the time and is backed and proven by math (in
mathematical formulas)
a pure substance that cannot be broken into simpler substances by ordinary chemical methods;
each has unique properties; made up of atoms - correct answer ✔✔Elements
smallest particles of an element with properties of that element; give each element its physical
and chemical properties; unique building blocks for each element; has a constant # of protons;
combine with other atoms to form molecules - correct answer ✔✔Atoms
2 or more atoms bonded together - correct answer ✔✔Molecule
positively charged particle that resides in the nucleus of an atom with a mass of 1 and a charge
of +1 - correct answer ✔✔Proton
negatively charged particle that travels in the space around the nucleus with negligible mass
and a charge of -1 - correct answer ✔✔Electron
particle that carries no charge (neutral) and resides in nucleus with a mass of 1 and no charge -
correct answer ✔✔Neutron
the path of an electron around the nucleus of an atom - correct answer ✔✔Electron Orbit
