Which is the best explanation for why there is a continued need to develop new antibiotics to fight bacterial infections?
Bacteria learn to avoid antibiotics that have been used for years.
O Drug companies want to sell as many drugs as they can to consumers
o Bacteria are constantly mutating and developing resistance to antibiotics.
O Doctors need many drug options to treat many different patients with different characteristics.

Read the scenario below and answer the question that follows. hallie is reading a novel in the library when susan, her best friend, slumps down in a chair next to her. susan doesn't say anything, but hallie knows that susan is upset because she is slumping in her seat and rolling her eyes. a psychologist would explain that hallie is interpreting her friend's emotion based on a. the behavioral component of emotion b. her friend's ability to regulate emotion c. the verbal component of emotion d. the physiological component of emotion select the best answer from the choices provided a b c d

The arrows in the illustration point to

When does an organism become an adult during a life cycle? a)before metamorphosis is complete b)after producing offspring c)after development is complete d)before gametes fuse