Answer:a:population must have genetic variation c:Natural selection occurs when the environment changes e:Organisms best suited for the environment survive and reproduce
Explanation:
Answer: Altricial young are born helpless and require care for a length of time. Altricial birds include herons, hawks, woodpeckers, owls, cuckoos and most passerines. For example, with ground-nesting birds such as ducks or turkeys, the young are ready to leave the nest in one or two days.
Explanation:
Answer:
Between 225 and 325 grams of carbohydrates a day.
Explanation:
The Dietary Guidelines for Americans recommends that carbohydrates make up 45 to 65 percent of your total daily calories. So, if you get 2,000 calories a day, between 900 and 1,300 calories should be from carbohydrates. That translates to between 225 and 325 grams of carbohydrates a day.
The correct answer is -twice a day.
Tides are long waves that moves across the oceans and are caused by the gravitational forces exerted on the earth by the moon and the sun. The coastal areas experience high tides when gravity pulls ocean towards the moon, this phenomena happens twice a day.
