The absence of between populations due to reproductive isolation is
a major contributor to speciation.
A) gene flow
B) allopatry
C) mutations
D) communication

Matthew decided he wanted to hike up mount everest. on his way to the top, it began to snow and the temperature dropped to -10°f. matthew forgot to wear a heavy jacket so his body began to shiver beyond control. in this case, matthew's body shivering is the to a drop in temperature. * 0 points reflex stimuli responce environmental facto

Which of the following particles always has a positive charge? a. electronb. neutron c. proton d. ion

What is the difference between a scientific hypotheses and a scientific theory?