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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
burning fossil fuels
B
DNA in plant and animal cells
C
waste products of photosynthesis
D
the sun
3) As proposed by Charles Darwin, life on Earth evolves by means of
A
mutation
B
speciation
C
natural selection
D
homeostasis
4) Segments of DNA molecules that give instructions for development are called
A
nucleic acids
B
genes
C
nucleotides
D
elements
5) Living things use energy to grow and move in a process called
A
chemical bonds
B
homeostasis
C
evolution
D
metabolism
6) Living things are made mostly of compounds that contain
A
carbon
B
blood
C
carbohydrates
D
scandium
7) Polysaccharides are formed
A
when sugars and proteins react
B
from amino acids and nucleotides
C
by linking sugars together
D
when animal fats are hydrogenated
8) Which of the following is not a characteristic property of life?
A
undergoes development
B
uses energy
C
made of cells
D
maintains homeostasis
9) Chemical bonds that result from the attraction of oppositely charged ions are called
A
ionic bond
B
covalent bonds
C
molecular bond
D
electronic bond
10) Which one of the following is not one of the four boiologically important macromolecules?
A
carbonates
B
protien
C
nucleic acids
D
lipids
*select an answer for all questions
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