In a given strand of dna the number of thymines A. Is same as the number of uracils

B. Is double the number of guanines

C. Is double the number cytosines

D. Is the same as the number of adenines

Plz answer ASAP

What are the most explosive events that occur on the sun? umbras solar flares solar winds prominences

Which of the following is the best definition of aerobic respiration? o a. the cellular process that releases energy by breaking down glucose o b. physical activity that involves the repeated motion of large muscle groups o c. physical activity that increases heart rate and breathing rate o d. the cellular process that converts solar energy to chemical energy

Food webs - transferring energy and matter from one level to another. here you see four food webs. one or more are incorrect. which food web(s) show the correct sequence of organisms, from start to top level consumer? a) a b) d c) c d) a and d