Answer:
Muscles produce keratin so that hair can grow stronger. Sweat glands break down the food that is consumed. Muscles contract rapidly to produce heat on a cold day.
Explanation:
The plasma membrane, because it's a selective permeable which means it only allows certain things in like sucrose.
The <span>site that could hold the most stores would be the site with the largest area, which the one that would be the least expensive to develop is the one farthest away from the main road. </span>
C. Mutualistic relationship
Flowers and hummingbirds have a mutualistic relationship where both benefit. Flowers produce food in the form of nectar (sugar and water) to attract hummingbirds which, in turn, move pollen for the plant (pollination).
