Answer:
An ecosystem consists of a community of organisms together with their physical environment. In ecosystems, both matter and energy are conserved. Energy flows through the system usually from light to heat while matter is recycled.
Explanation:
Answer:
1977 is when people first knew about archaebacteria
Answer:
W = Animal
X = Bacteria
Y = Protist
Z = Plant
(may or may not be right btw)
Answer:
Because some people are fat and want to lose that fat away.
Explanation:
They need to be capable of making proteins in that area
