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Intro To Biology
Test Description: Scientific Method, What is Life, and Basic Chemistry
Instructions: Answer all questions to get your test result.
1) Theories
A
reflect scientific truths
B
are tested but never rejected
C
always result in major scientific breakthroughs
D
are always subject to revision
2) The energy used by living things on Earth comes from
A
burning fossil fuels
B
waste products of photosynthesis
C
DNA in plant and animal cells
D
the sun
3) As proposed by Charles Darwin, life on Earth evolves by means of
A
natural selection
B
mutation
C
homeostasis
D
speciation
4) Segments of DNA molecules that give instructions for development are called
A
genes
B
elements
C
nucleic acids
D
nucleotides
5) Living things use energy to grow and move in a process called
A
metabolism
B
evolution
C
chemical bonds
D
homeostasis
6) Living things are made mostly of compounds that contain
A
scandium
B
carbon
C
blood
D
carbohydrates
7) Polysaccharides are formed
A
when sugars and proteins react
B
from amino acids and nucleotides
C
when animal fats are hydrogenated
D
by linking sugars together
8) Which of the following is not a characteristic property of life?
A
made of cells
B
maintains homeostasis
C
uses energy
D
undergoes development
9) Chemical bonds that result from the attraction of oppositely charged ions are called
A
ionic bond
B
covalent bonds
C
electronic bond
D
molecular bond
10) Which one of the following is not one of the four boiologically important macromolecules?
A
nucleic acids
B
carbonates
C
lipids
D
protien
*select an answer for all questions
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