Which of the following best describes physical development during adolescence?

puberty occurs according to a set schedule that is the same for all individuals.

the development of secondary sex characteristics happens at a rate unique to each individual.

the development of secondary sex characteristics begins at the same time for adolescents.

individuals can expect few changes to their physical characteristics during adolescence.

The right answer is  B.

Puberty is a stage of development that is reached when reproductive organs are functional. In humans, it refers to the transition from childhood to adulthood. It is particularly notable for its rapid growth due to growth hormones and the development of primary and secondary sexual characteristics due to sex hormones, with notable behavioral changes including an increased need for sleep due to a shift in melatonin release.

Note that each teenager follows his own development and that there is no pre-established order.

kelp are large brown algae that live in cool, relatively shallow waters close to the shore. they grow in dense groupings much like a forest on land. these underwater towers of kelp provide food and shelter for thousands of fish, invertebrates, and marine mammal species.

e) all of the above