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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
always result in major scientific breakthroughs
B
reflect scientific truths
C
are tested but never rejected
D
are always subject to revision
2) The energy used by living things on Earth comes from
A
waste products of photosynthesis
B
the sun
C
burning fossil fuels
D
DNA in plant and animal cells
3) As proposed by Charles Darwin, life on Earth evolves by means of
A
mutation
B
speciation
C
homeostasis
D
natural selection
4) Segments of DNA molecules that give instructions for development are called
A
elements
B
nucleotides
C
nucleic acids
D
genes
5) Living things use energy to grow and move in a process called
A
chemical bonds
B
metabolism
C
homeostasis
D
evolution
6) Living things are made mostly of compounds that contain
A
carbohydrates
B
blood
C
carbon
D
scandium
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
uses energy
B
made of cells
C
maintains homeostasis
D
undergoes development
9) Chemical bonds that result from the attraction of oppositely charged ions are called
A
electronic bond
B
ionic bond
C
molecular bond
D
covalent bonds
10) Which one of the following is not one of the four boiologically important macromolecules?
A
protien
B
carbonates
C
nucleic acids
D
lipids
*select an answer for all questions
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