#Question id: 9050
#Section 2: Evolution
If an ecologist were studying the regional interactions among multiple populations of different species and how they influence the exchange of materials between their various environments, then this would be an example of which kind of research?
#Question id: 9203
#Section 5: Applied Ecology & Evolution
The human impact that scientists determined has caused the most extinctions on record is ________, and beyond further losses from this impact, the other impact with the largest potential to cause future extinctions is ________.
#Question id: 4644
#Section 2: Evolution
The treeʹs horizontal axis is a timeline that extends from 100,000 years ago to the present; the vertical axis represents nothing in particular. The labeled branch points on the tree (V—Z) represent various common ancestors. Letʹs say that only since 50,000 years ago has there been enough variation between the lineages depicted here to separate them into distinct species, and only the tips of the lineages on this tree represent distinct species.
According to this tree, what percent of the species seem to be extant (i.e., not extinct)?
#Question id: 11918
#Section 1: Ecology
A succession which begins when rooted aquatic plants become established at the edge of a pond, is known as,
#Question id: 3443
#Section 2: Evolution
The evolution of mating systems is most likely affected by