The islands of Hawaii lie approximately 3200 km from the nearest continent and so have been
geographically isolated for most of their history. Nearly 800 species of fruit flies have been
discovered on these islands, and molecular and anatomical data suggest that the vast majority
of these species arose from a single ancestral species that colonized the Hawaiian Islands from
eastern Asia. The divergence into multiple different species is an example of __________.
a. adaptive radiation
b. sexual selection
c. coevolution
d. migration
A
You might also like to view...
An individual with a damaged cerebellum will have problems with balance
Indicate whether the statement is true or false.
Which algae group has the largest multicellular forms?
A. red algae B. diatoms C. brown algae D. golden algae E. green algae
An action potential in a neuron begins when ____
a. a threshold potential is reached at the trigger zone b. the resting potential is established c. gated sodium channels close d. gated potassium channels close e. neurotransmitters are received by dendrites
A test carried out under controlled conditions that may be manipulated by a researcher is a(n)
a. experiment. b. hypothesis. c. problem. d. procedure. e. variable.