How long will it take three quarters of a sample of a radioactive element to decay if its half-life is 4 days? a. 2 days b. 3 days c. 4 days d. 8 days

How does a lytic infection differ from a lysogenic infection?

To sciences do not agree on which type of grocery bag is better for the environment what is most likely to come out come out of the disagreement

8) animals respond in various ways to stimuli detected through their senses. some of these responses are stimulated by the presence of danger. which of these animal responses is the best example of a response to an immediate threat? a) a rooster crows every morning at the first sign of light. b) as something approaches an octopus, it shoots a cloud of ink. c) from late fall until spring, bears hibernate to preserve energy. d) a dog is getting hot in the sunlight, so he moves to a shaded area.