operons allow prokaryotes
a. replicate dna at the appropriate time.

b. avoid mutations.

c. keep their dna organized.

d. conserve energy
( update; d. is the correct answer )

1. watermelon, papaya, oranges, bananas, and lemons are included in this food group. vitamin c 2. you need 6 or more servings of this food group each day vitamins d and a 3. found in fruit and keeps blood vessels healthy calcium 4. vitamins found in milk bread and grain 5. a mineral that strengthens bones fruit

Explain why biological control methods are generally environmentally superior to chemical pest control methods.

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