Milk is a good source of calcium but a poor source of iron. meat is a good source of iron but a poor source of

Astudent poured a solution of bromothymol blue indicator into three test tubes. then he placed an aquatic plant in two of the test tubes, as shown below. he placed a stopper on each test tube and placed them all in the dark for 24 hours. bromothymol blue turns from blue to yellow in the presence of co2

The pelican's beak is adapted for in .

Make a claim about the factors that cause inherited genetic variations within populations. also make a claim about the effects of mutations.