Answer:
b........................
Your question is rather unclear but from what I can tell either there were not an even amount of Petri dishes or some of them were left open while others were not.
Cells, tree, digestive system, public transportation system, government systems, school systems, families, dog, forest, pond, prairie, communication systems, towns, insect, solar system, weather systems, bird, correctional system, squirrel, soil, etc.
2. Since it’s developmental anatomy
Answer:
Which practice can be categorized as a sustainable practice?
Any practices that supports continuity is termed as sustainable such as personal hygiene which enables to curb the ;persistence of infectious diseases. Ordinarily, practicing personal hygiene is sustainable and would greatly reduce infectious diseases globally especially endemic areas.
Explanation:
