Which of the following is not part of the nucleotide
a. phosphate
b. saturated lipid
c. nitrogenous base
d. deoxyribose sugar

The two tubes contain bromothymol blue. after 24 hours, what will the color of the water be in tube b? a. green (it won't change) b. yellow c. blue d. colorless (clear)

What are the pros and cons of quadrat sampling?

Which line in the graph above best illustrates an effect of the carbon dioxide level in the blood on breathing rate before, during and after a period of exercise? 1.b,2.c,3.a,4.d