I don’t understand this question
Answer:
A reference point is a place or object used for comparison to determine if something is in motion. An object is in motion if it changes position relative to a reference point. Objects that are fixed relative to Earth – such as a building, a tree, or a sign - make good reference points.
Explanation:
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Options are:
a) lymph.
b) interstitial fluid.
c) extracellular fluid (ECF).
d) plasma.
All the following are correct terms for this fluid except lymph.
The interstitial fluid surrounds the cells in the body. The other major component of the ECF is the intravascular fluid of the circulatory system called blood plasma. Whereas, Lymph is a fluid which contains infection-fighting white blood cells, throughout the body.
50 IS THE ANSWER
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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.
