graded to pass
1. What are the steps in the sci- -exploration and discovery
entific method? -testing ideas
-community analysis and feedback
-benefits and outcomes
2. Define Theory A well-substantiated explanation of some aspect of the natu
world, based on a body of gives that have been repeatedly
confirmed
3. The earth's crust oxygen and silicon
consist mainly of what
elements?
oxygen, carbon, and hydrogen
4. The human body
consist mainly of what
elements?
5. Are viruses made of cells?no
6. What is the central dogma? DNA -> RNA -> Protein
7. When simple entropy?
compounds are
combined into more 9. Humans and chimpanzees share
complex molecules, % of our DNA.
the entropy inside
the cell
.
8. When energy is
released as heat, what
happens to the
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,JMU Bio 140 Exam 1 questions and answers A+
graded to pass
decreases
the entropy increases
98.8
10. What do nodes do? indicate a common ancestor
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,JMU Bio 140 Exam 1 questions and answers A+
graded to pass
11. What makes a good hypoth- a prediction about observations not yet made and can
be tested
esis? experiment or further observation
12. What are the complexity
characteristics of life?-ability to change in response to the environment
-ability to reproduce
-capacity to evolve
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,JMU Bio 140 Exam 1 questions and answers A+
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13. What two elements make up hydrogen and helium
99% of matter?
14. What is the first law of energy can neither be created nor destroyed; it can only be
ther- modynamics? transformed from one form to another
15. What is the second the degree of disorder in the universe tends to increase
law of
thermodynamics?
entropy
16. The amount of disorder
in a system is the of
the system
Francesco Redi
17. Who completed the
experi- ment with
rotting meat? living things only come from other living things
18. What did Francesco
Redi's experiment that microorganisms can arise by spontaneous generation
prove?
19. What was the that microbes carried on airborne dust particles is necessary
hypothesis which Louis for microbial growth
Pasture tested?
20. What did Louis Pasture's
ex- periment prove?
21. Define plasma
membrane
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