The energy of the sun is converted into usable energy for the cell in the form of _________.

a) ADP
b) ATP
c) CO2
d) glucose

37. The innermost electron shell of an atom holds a maximum of ______ electrons.

a) 2
b) 4
c) 6
d) 8
e) 10

38. The pH of the fluid in your stomach is around pH 2. The fluid is ____________.

a) acidic
b) basic
c) neutral

39. The chemical bond that results in the transfer of electrons is a _______ bond.

a) hydrogen
b) covalent
c) polar
d) ionic

 

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A dichotomous key is used to ___________________.

a) locate organisms
b) identify organisms
c) divide organisms
d) interbreed species
e) describe plants

45. The control in an experiment _______________________________________.

a) reduces the experimental errors
b) minimizes experimental inaccuracy
c) allows standard comparison for the experimental group
d) is an additional replicate for statistical purposes
e) makes the experiment invalid

 

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Which statement best describes the relationship between plants and animals on earth?

a) Plants produce O2 and sugars from CO2
b) Animals produce CO2 and H2O from sugars and O2
c) Plants produce O2 and sugars and animals produce CO2 and H2O
d) Animals produce O2 and sugars and plants produce CO2 and H2

 

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A nucleus would not be found in:
a) Fungi
b) Cyanobacteria
c) Humans
d) Tulips
e) fish

 

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