Answer: O many celled organisms
Explanation:
Alveoli are found in lungs and exchamge O2 and Co2 !!
so answer is last one !!
Answer:
Figure 1-4 shows one with an animation in progress. Work area is the technical name for the gray area surrounding the stage, although many Flash-ionados call it the backstage. ... The Stage is where you draw the pictures that will eventually become your animation.
Explanation:
