Answer:
D) Both lack membrane-bound organelles and are single-celled.
Explanation:
The answer is D because the main difference between Archaea and Eubacteria is they differ in the formation of their cell wall. Archaea's cell walls are made of uncommon lipids while Eubacteria have cell walls made of peptidoglycan.
Friction would cause the box to be harder to push
Active muscles demand huge amounts of oxygen, and the circulatory system works hard to provide it. Blood carries oxygen to the muscles. When the body is at rest, blood carries nutrients to the muscles so that they can repair and rebuild themselves. Blood also carries away the waste products that hard-working muscles produce, back out through the lungs to be filtered.
so they Circulatory system xx muscular system :)
It gives the plant air and food
