Fossil records often show extinct organisms that are similar to current species. These species are
often_[blank] modern species.

Which option correctly completes the last sentence?

A. the future versions of

B. unrelated to

C. ancestors of

D. exactly the same as

C. ancestors of

Explanation:

The species found as extinct in the fossil records are often times the ancestors of modern species.

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each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.