The ability of an animal to maintain a stable internal environment is called homeostasis.
D oxygen there was no free oxygen on the earth
Under a microscope, gram-positive bacteria (when dyed with the gram stain) appear in purple-colored structures due to the peptidoglycan cell wall.
<h3>What are gram-positive bacteria?</h3>
Gram-positive bacteria are microorganisms (bacteria) that may be colored with crystal violet stain due to the presence of a peptidoglycan-based cell wall.
In conclusion, under a microscope, gram-positive bacteria (when dyed with the gram stain) appear purple-colored structures due to the peptidoglycan cell wall.
Learn more about gram-positive bacteria here:
brainly.com/question/14543191
#SPJ1
Answer:
Elephant
Explanation:
Sub(ribe TO RyStone On utube
