Which is an example of an instinct? A rabbit hides when it observes a predator.
A dog wags its tail when it hears a doorbell ring.
A boy pulls his hand away after touching a hot surface.
A dolphin swims through a hoop during an amusement park show.

A boy pulls his hand away after touching a hot surface

Explanation:

INSTINCT MEANING: Instinct or innate behavior is the inherent inclination of a living organism towards a particular complex behavior.

The option "A dolphin swims through a hoop during an amusement park show" is absurd because dolphins are trained to do that which is not an instinct.

The option "A dog wags its tail when it hears a doorbell ring" is also not an Instinct.

the answers are as following:

1. c. double helix, nucleosome, coil, supercoil, chromosome

2. b. g2 phase, preparation for mitosis

3. d. interphase consists of the g1, s, and g2 phases

4. c. metaphase

5. a. chromosomes are duplicated before cell division so that each new daughter cell has a complete set