You mean histology right??
Histology:
Histology, also microanatomy, is the ponder of the life structures of cells and tissues of plants and creatures utilizing microscopy.
Explanation:
Tests for gases
Hydrogen, oxygen, carbon dioxide, ammonia and chlorine can be identified using different tests.
Hydrogen. A lighted wooden splint makes a popping sound in a test tube of hydrogen.
Oxygen. A glowing wooden splint relights in a test tube of oxygen.
<span>{(45, 18), (62, 13), (72, 11), (55, 15), (38, 21), (26, 31), (93, 9), (64, 13), (29, 28), (33, 25), (49, 17)}</span>
Answer:
i think the first one, Kelp forest act as ecosystem engineers
Explanation:
if im wrong im sorry
B-valine,histidine,threonine,phenylalanine