A is an impression of the inside of an organism.
**One-word answer**

Which of the following is the earliest era of earth's geologic time scale? cenozoic mesozoic precambrian paleozoic

How are viruses different from eukaryotic cells?

Brendan made a diagram to compare and contrast the benefits of two types of social behavior. which description belongs in the area marked "z"? reproductionprotectionforaginghydrodynamic efficiency