Which of the following is a fossil?

a. An insect encased in 10-million-year-old tree sap
b. A woolly mammoth frozen in Arctic permafrost for the last 50,000 years
c. Mineral-hardened remains of a whale-like animal found in an Egyptian desert
d. An impression of a plant leaf in a rock
e. All of these could be considered fossils


E

Biology & Microbiology

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In all organisms, hereditary information is encoded within __________ molecules

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__________________ Indicate whether the statement is true or false.

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Fill in the blank(s) with correct word

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