Answer:
C. Sarcomers
Explanation:
Sarconers are the smallest contractile unit of muscle therefore it performs the muscle contraction.
Explanation:
The major function of the reproductive system is to ensure survival of the species.
Answer:
One spread and the other is not.
Explanation:
Communicable diseases and noncommunicable diseases are different because communicable diseases spread from one person to another whereas non-communicable diseases are not spread from person to person. Poor hygiene can lead to these diseases because of the present of pathogens that causes diseases. I believe poor hygiene is a symptom because it damages our health by causing diseases in the individual.
