Between leaving the right side of the heart and arriving back at the left side of the heart, what has happened to the percent of oxygen in the blood

Asmall number of finches are removed randomly from the wild and placed in a protected bird area. they are given as much food as they need and have plenty of space. why would natural selection not occur in this population? a. there is no reason for genetic mutation to occur. b. the birds compete for limited resources, c. the population has not reached carrying capacity. d. there is no genetic variation in the finches.

The main ingredient of magma is a pahoehoe. b silca c dissolved gases d obsidian

Which characteristic should describe all evidence collected by a scientist? true obvious objective subjective