What form are the instructions that ribosomes use to create proteins?
A. DNA
B. lipids
C. sugars
D. mRNA

Which geologic feature would most likely be represented by contour lines john far apart from one another? a cliff a hill a plain a valley

What evidence supports the law of conservation of energy? a) mechanical energy is converted to chemical energy during photosynthesis. b) oxygen is made from the breakdown of carbon dioxide during photosynthesis. c)energy is absorbed by chlorophyll and becomes chemical energy during photosynthesis. d)the sun gives off light energy that is absorbed by plants.

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above