Which of the following is NOT an example of an ecological study? Select one:

a.
The study of how hummingbirds pollinate certain shrubs

b.
The study of competition between hummingbirds and honey bees

c.
The study of muscle strength in hummingbirds

d.
The study of how air pollution impacts hummingbird shells

When the grand canyon formed many small mammal population were divided. some members of the population were on one side and others are on the other, therefore, they were no able to mate with one another. over time this separation and inability to mate with one another led to the emergence of new species. this type of speciation is called a) sympatric speciation. b) allopatric speciation. c) parapetric speciation. d) peripatric speciation.