What function does the limb serve in each animal? how are the limb bones of the four animals similar? based on these similarities, what can be inferred about the evolution of the four animals?

Which identifies the main purpose of biological taxonomy?

Describe how a student should adjust the microscope to see the cells on a slide more clearly?

According to theories of how life began, how did early organic molecules begin to separate from the outside world? a: specialized enzymes were required b: chains of amino acids created a barrier c: formation of microspheres or vesicles d: rna catalyzed the formation of membranes