Major Theme Connection: I
1. Using radioactive isotopes to determine the age of a fossil is known as radiometric dating. How
might radiometric dating provide support for the theory of evolution by natural selection? Hint-
Consider the age of fossils with respect to the overall fossil record (the entire collection of data
regarding fossils and the age of Earth).

Consider an organism that is eukaryotic, found in both unicellular and multicellular forms, may resemble a plant but is not photosynthetic, has chitin in its cell walls, and absorbs organic nutrients from decomposing material in the environment. this organism would be classified as which of the following types of organisms? a. fungib. protozoac. bacteriad. archaea

Dna is colied into chromosomes in a cell

Lucia is walking barefoot in her yard. she accidentally steps on a nail. how will her nervous system work to generate a reaction? arrange the eventschronologically.