Answer: It is an amino acid that cannot be made by the body. It must be obtained from eating certain foods.
Explanation:
Answer:
Molecules are attracted to each other, but not ordered: liquid water
ater vapor
Molecules are not stuck together: water vapor
Liquid water Molecules are joined in an ordered structure: ice
Explanation:
The warmth and redness of the surrounding area of the cut is due to the immune system.
Blood carries white blood cells, which attacks pathogens (Cause of infection)
The surface become red and warm as that is a conjugating area of blood.
Answer:
The last one: dinosaur footprints preserved in mud turned to rock
Fossils have to be physical remains of an animal.
Hope this helps!
They do that so when a shark eats something and crumbs come out of its mouth it eats the crumbs
