Answer:
Malaria can be described as a disease which is caused by a parasitic organism. The Anopheles mosquito carries the parasite Plasmodium in it. When this mosquito bites a human being, the parasite gets transferred into the blood of the person causing malaria. Before entering the blood cells, the plasmodium travel to the liver where they get matured.
Malaria is a life-threatening disease which kills many humans each year, especially people living in underdeveloped countries.
17=3
18=4
I'm not that sure about 17, but I think it's right
<span>Sink
A sink is an area where sugars are used or stored; typically, these are the roots and fruits of a plant.</span>
