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BIO-100 Exam 5 2025 Questions and Answers elements - ....ANSWER ...-substances that cannot be broken down into simpler substances by chemical reactions 92 - ....ANSWER ...-There are ___ naturally occurring elements atomic number - ....ANSWER ...-Signifies the number of protons an element has on the periodic table atomic weight - ....ANSWER ...-Signifies the number of protons + the number of neutrons an element has on the periodic table neutrons - ....ANSWER ...-Atomic weight often appears as a decimal because it averages all naturally occurring forms of the element, which vary in number of ____ 25 - ....ANSWER ...-How many of the naturally occurring elements are used by the human body? carbon, oxygen, hydrogen, nitrogen - ....ANSWER ...-Name the four elements that make up the majority of living matter. trace elements - ....ANSWER ...-14 elements such as zinc and iron which the body requires only in very small amounts …FOR STUDENTS ONLY…©️2025 ALL RIGHTS RESERVED… 1