Gradient = difference in elevation/horizontal distance
Epidermal tissue as this is what makes up the lining
The answer would have to be the third option "<span>Clusters and constellations." Clusters is a group of stars that is in a galaxy. Constellations is a line connected by stars to make a picture for example a kite. Galaxy's also include: planets, stars, clusters, comets, and sometimes asteroids.
Hope this helps!
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Answer:
keeping fat is good for our stomach and other parts to protect and maintain
