PLZZZ HELP Which of the following is an example of a beneficial mutation?

Inherited polyploidy causes your body to produce bacteria that will not resist antibiotics.

Spontaneous mutations produce polyploidy plants, producing larger and heartier plants.

Non-disjunction causes mutations that make some humans resistant to HIV.

Mutagens can decrease the rate at which mutations occur in an organism.

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.