Answer:
The number of calories per serving.
Explanation:
Eating calories is what your body needs for energy. But, if you eat things with a lot of calories and don't do exercise to get rid of calories, it could cause you to gain a lot of weight. This is why you always look for the amount of calories first.
The answer is b.
Internal fertilization takes more time and energy but it allows for the offspring to revive more devoted care. When an organism spends that much time and energy investing in an offspring it becomes worth the investment to devote more care towards it.
B. Exercise strengthens the bones so if you go without exercise your bones become weak.
