How much of the parent isotope would be remaining after 7 half-lives have passed? a. 6.25 %
b. 1.56 %
c. 0.78 %
d. 0.39 %
If a radioactive element has a half-life of 425 years, how old would a rock be that only had 3.125 % of the parent isotope remaining?
a. 2125 years
b. 1700 years
c. 2550 years
d. 3400 years
Based on your graph above, approximately how much of the parent isotope would be remaining after 3.5 half-lives?
a. 16 %
b. 12 %
c. 4 %
d. 8 %
Based on your graph above, approximately how many half-lives have passed when only 35 % of the parent isotope is remaining?
a. 0.75
b. 1.5
c. 2.1
d. 2.5

there are mainly three domains in biological classification namely; archaea, bacteria, and eukarya.

archaea includes all the prokaryotic cells which are characterized by their lipid membranes. they have branched hydrocarbon which is attached to glycerol through an ether linkage.

bacteria includes all the prokaryotic cells, the cell membrane of which are made up of the unbranched fatty acid chain. in addition, they are attached to glycerol through an ester bond.

eukarya includes all the eukaryotic cells, that is, the cells contain a nucleus and other membrane-bound cell organelles.

they can be autotrophic as well as heterotrophic, unicellular as well as multicellular

they include kingdoms like protista, plantae, animalia, fungi et cetera.

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explanation:

high growth (apex)

those characteristics are cellular organization, reproduction, metabolism, homeostasis, heredity, response to stimuli, growth and development, and adaptation through evolution. some things, such as a virus, demonstrate only a few of these characteristics and are, therefore, not alive

answer; coat color for blending in with dry grass;