B. the oceans is the largest ecosystem.
The answer is A
Using energy
D all of the above because it applys to all
The long-term benefits of participating regular physical activity include: loss of weight and eventually settling to a healthy weight, body already adapts to dynamic movement, one's heart is also getting larger, and bones become denser. In this case, the short terms effects are increase in hear rate, increase in stroke volume and decrease in pH of the blood.
A sexual is reproduction without a partner sexual reproduction is reproduction that involves 2 partners