This question is unfortunately incomplete. This question relates to the advantage derived by some parasites by maintaining a low level of infection in the host. These parasites achieve this by a gene for its surface glycoproteins that is duplicated thousands of times, with each gene coding for a slightly different glycoprotein structure. By constantly shifting between glycoproteins of different structures, the parasite can fool the host into temporarily reversing the immune response. The question includes a table showing the change in parasite blood concentration with time, with the table showing distinct waves of increases in parasite concentration followed by decreases. Using the hypothesis about changing glycoprotein structure, it makes sense that the host begins an immune response, leading to a decrease in parasite numbers, at which point the parasite changes the structure of its surface glycoproteins, thereby allowing the parasite to overcome the immune response, and the concentrations of parasites increase once again.
Food mostly becomes unsafe because of those who are responsible of handling or the ones who are doing the food. They would most likely handle food without even considering proper hygiene or how they cook the food in a way that could make them unsafe and unhealthy for the individuals to eat. People who handles them are mostly the ones who are responsible.
Urochordata is another invertebrate other than hagfish.
Answer:
Hello There!!
Explanation:
The purpose of the chloroplast is to make sugars that feed the cell's machinery. Photosynthesis is the process of a plant taking energy from the Sun and creating glucose. When the energy from the Sun hits a chloroplast and the chlorophyll molecules, light energy is converted into the chemical energy.
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