Running and aerobics are bone-strengthening activities that
Lea may incorporate in her current plan. However, the kind of bone-strengthening
activities that should be done depends on the stage of development. For
children, adolescents and young adults, vigorous activities may be done because
it is the stage for building strong bones. On the other hand, adults aged 35
onwards have the tendency to have brittle bones or natural bone loss,
therefore, vigorous activities must be lessened in frequency.
A. acute
Acute exposure is short time and the negative effects do not accumulate as in chronic exposure.
Answer:
A
Explanation:
im studying to be a doctor lol
The best way to describe a human sperm cell is a tad pole (Baby frog). Like the sperm cell the tad pole has a head, body and a tail. Though tad poles are finished products, the sperm cell needs to combine with the egg cell for it to be fertilized.