A new study reviewed observations of nearly 3,000 bird species to understand why tropical mountain bird species live at specific elevations. They noted that when a mountain bird species was found in an area with many other bird species, it tended to inhabit much smaller geographic areas. It is thus likely that competition for resources with other species, not temperature, limits where these birds can live.
Based on the texts, both authors would most likely agree with which statement?
Choose 1 answer:
Choose 1 answer:
(Choice A) Little is known about how tropical mountain birds build their nests.
A
Little is known about how tropical mountain birds build their nests.
(Choice B) Tropical mountain bird species are restricted in where they can live.
B
Tropical mountain bird species are restricted in where they can live.
(Choice C) Tropical mountain bird species that live at high elevations tend to be genetically similar.
C
Tropical mountain bird species that live at high elevations tend to be genetically similar.
(Choice D, Checked) Scientists have better tools to observe tropical mountain birds than they did in the past.
D
Scientists have better tools to observe tropical mountain birds than they did in the past.