JMU Bio 140 Exam 1 Questions and Answers
with Verified Solutions | Latest Updated 2026
What are the steps in the scientific -exploration and discovery
method? -testing ideas
-community analysis and feedback
-benefits and outcomes
Define Theory A well-substantiated explanation of some
aspect of
the natural world, based on a body of gives
that
have been repeatedly confirmed
The earth's crust consist mainly of oxygen and silicon
what elements?
The human body consist mainly of oxygen, carbon, and hydrogen
what elements?
Are viruses made of cells? no
What is the central dogma? DNA -> RNA -> Protein
When simple compounds are decreases
combined into more complex
molecules, the entropy inside the
cell __________.
, When energy is released as heat, the entropy increases
what happens to the entropy?
Humans and chimpanzees share 98.8
_______% of our DNA.
What do nodes do? indicate a common ancestor
What makes a good hypothesis? a prediction about observations not yet
made and
can be tested by experiment or further
observation
What are the characteristics of -complexity
life? -ability to change in response to the
environment
-ability to reproduce
-capacity to evolve
What two elements make up 99% hydrogen and helium
of
matter?
What is the first law of energy can neither be created nor
thermodynamics? destroyed; it
can only be transformed from one form to
another
What is the second law of the degree of disorder in the universe
thermodynamics? tends to
increase
with Verified Solutions | Latest Updated 2026
What are the steps in the scientific -exploration and discovery
method? -testing ideas
-community analysis and feedback
-benefits and outcomes
Define Theory A well-substantiated explanation of some
aspect of
the natural world, based on a body of gives
that
have been repeatedly confirmed
The earth's crust consist mainly of oxygen and silicon
what elements?
The human body consist mainly of oxygen, carbon, and hydrogen
what elements?
Are viruses made of cells? no
What is the central dogma? DNA -> RNA -> Protein
When simple compounds are decreases
combined into more complex
molecules, the entropy inside the
cell __________.
, When energy is released as heat, the entropy increases
what happens to the entropy?
Humans and chimpanzees share 98.8
_______% of our DNA.
What do nodes do? indicate a common ancestor
What makes a good hypothesis? a prediction about observations not yet
made and
can be tested by experiment or further
observation
What are the characteristics of -complexity
life? -ability to change in response to the
environment
-ability to reproduce
-capacity to evolve
What two elements make up 99% hydrogen and helium
of
matter?
What is the first law of energy can neither be created nor
thermodynamics? destroyed; it
can only be transformed from one form to
another
What is the second law of the degree of disorder in the universe
thermodynamics? tends to
increase
