Answer: The means for transmission of disease-causing microorganism is provided by the direct or indirect contact.
Microorganisms can cause disease only once they are transferred to the body. The disease causing microorganisms are termed as pathogens which are transmitted by several ways such as from skin to skin, by nuclei droplets, through blood and body fluids or via air. In vector transmissions the disease is carried by the parasitic insects via animals, air borne transmission occurs when microorganisms move through air or the dust particles, droplet transmission occurs by coughing, sneezing or talking by the person who is infected while indirect transmission occurs by physical contact or by touching contaminated objects.
Answer:
Its B or C but im pretty sure its C
Answer:
Tendon sheaths <u>act as friction-reducing structures.</u>
Explanation:
Tendon sheaths are fibrous tissue that is around tendons to protect and make the movements of these smoother. For example, they reduce the friction of the flexors and extensors tendons of the hand. These are tendons that we constantly use to open and close our hands when we want to grab objects. Without the sheath, the tendons will not move easily, and due to the excessive use, there can be inflammation.
The sheats have two layers, one internal, which is a synovial one that produces synovial fluid to lubricate the tendon, and the external, which is a fibrous layer.
Answer:
Glycerol and fatty acids are the basic building blocks of fats (lipids).
Explanation:
The difference between the two diseases that could lead to the same basic reproduction number is : One disease has lower transmission rate and a longer recovery period than the other. ( B )
Basic reproduction number ( r0) represents the number of people who gets infected through an infected person, and for a disease to be highly infectious its ( r ) number will have to higher than 1. and The value of r0 is determined based on certain factors which are :
- The Infectious period
- contact rate and mode of transmission
Therefore for the two viral diseases to have the same basic reproduction number one of the disease will have a lower transmission rate and a longer recovery period than the other
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