Which type of rna makes up the ribosomes that manufacture polypeptides

Which of the following is an example of an environmental change the affected the evolution of life a. volcanic activity b. changes in climate c. mountain building d. all of the above

What is the relationship between absorbance of light and the rate of photosynthesis?

Describe the response the kidneys have to dehydration and excessive water intake. what happens to the concentration of urine in each case ?