You are trying to identify this nucleic acid. all but one observation is an important clue to the nucleic acids identity. that is it a. is single stranded. eliminate b. contains phosphate. c. contains ribose sugar. d. contains uracil instead of thymine.

Afarmer has applied a pesticide to control a pest population that is affecting her crops. the pest population has reacted as shown below. which best describes the process that the pest population has experienced due to this environmental change? a genetic diversity b natural selection c natural resistance d genetic resistance

The circles, or orbits, for electrons are called energy levels. each level can hold only a certain number of electrons. add electrons to each level until you can't add any more. how many electrons can each level hold?

Explain how organisms could be harmed by high levels of salt from roadways?