The correct answer is c. Genetic Variation. Bacteria are very numerous, ad random mutation of bacterial DNA generates a wide variety of change, including resistance.
Answer:
cartilage is a flexbile tissue made of cells called chond
Explanation:
Rocks are abiotic
(Soil?) is made of both abiotic and biotic materials
Sea shells are biotic
Answer:
Ohio
Explanation:
To run the family business for a time.