Characteristics of Life Answers

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1
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Check all the characteristics below that describe elements.

A
one type of atom
B
a pure substance
C
more than one type of atom
D
chemically combined elements
2
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Check all the characteristics below that describe compounds.

A
two or more elements
B
chemically combined elements
C
one type of atom
D
cannot be separated into a simpler form
E
definite proportions
3

List the six fundamental elements found in living organisms in the text area below.

Answer:

carbon (C), hydrogen (H), oxygen (O), nitrogen (N), phosphorus (P), sulfur (S)

4

Check the elements you included in your list.

A
carbon (C)
B
hydrogen (H)
C
oxygen (O)
D
nitrogen (N)
E
phosphorus (P)
F
water (H2O)
G
sulfur (S)
7

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8

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