What are plasmids?

Answer and explain your answer: antibiotics can treat bacteria or virus causing illnesses?

When a population is split into smaller groups, why do these groups develop different traits? A. Evolutionary mechanisms work the two subgroups independently B. Separating the two groups decreases the chance that the two groups will diverge. C.

Sympathetic innervation of the heart a: increases the heart rate. b: decreases the heart rate. c: increases the force of contractions. d: decreases the force of contractions. e: has no effect on contraction force.

Which best describes the purpose of a controlled experiment? A. to make sure the results of the experiment support the hypothesis B. to prevent a dangerous condition resulting from a reaction C.

Which renewable energy source has greatest ecological footprint?

Which type of gene is most likely to be widely expressed in the body of someone who has a superficial scrape?

Which of the answer choices is an example of stabilizing selection? 1. decrease in the number of birds with intermediate-sized beaks 2. who are unable to eat large or small seeds 3. breeding dogs from wolves selection for average 4.

What does the fossil of a mesoaur look like

Which of the following statements correctly describes what happens to the diaphragm during an inhalation, when the lungs inflate? A. The diaphragm contracts and flattens. B. The diaphragm expands. C. The diaphragm only moves during exhale. D.

Plants have specialized structures that perform their necessary life functions. What function is performed by the xylem? a. food transport c. water transport b. heat production d. waste transport