The geological time scale represents the history of what?

Which of the following birds remained ancient looking in the miocene epoch? a. crows b. owls c. grouses d. none of the above

What are two ways that harvesting algae from the ocean may benefit human society? how might the harvest of algae negatively impact the ocean communities where that algae grows? how could this be prevented?

Has anyone taken the genetics unit test in connexus? not looking for answers, just a little bit what to expect and some with studying.