Answer:
<u>A. red blood cells containing malaria</u>
Explanation:
Malaria is a disease-causing pathogen in humans. It is caused by species of the parasite <em>Plasmodium sp.</em><em>,</em> which is transmitted as sporozoites by the Anopheles mosquito upon biting the host. These travel through the bloodstream to the liver where they mature into merozoites. These reenter the bloodstream and mature into trophozoites and schizonts that produce more merozoites.
 When they multiply within the red blood cell, they <u>burst the red blood cell open</u>, and go on to infect other cells. This infection's symptoms are cyclic and include high fever, chills and other flu-like symptoms.
Malaria is a deadly illness, causing harm to its hosts, and in many cases death. <u>Thus, this cannot be defined as symbiosis, which is typically beneficial to both organisms.</u>
 
        
             
        
        
        
Cyanobacteria released OXYGEN into the atmosphere through photosynthesis
        
             
        
        
        
The OH on the lower right of lysine and the H on the lower left of valine combine to form a molecule of water (H2O) and detach in a process known as a dehydration reaction when the two amino acids bond. The C on the right side of lysine then single bonds with the N on the left side of valine. This bond is termed a peptide bond. All the other bonds remain unchanged.
 
        
        
        
m - Meter - Length.
s - Second - Time.
A - Ampere - Electric Current.
K - Kelvin - Temperature.
kg - Kilogram - Mass.
 
        
             
        
        
        
Number of mole s of H 
2
	
 = 0.25 moles 
number of molecules = moles * Avogadro’s Number
number of molecules = 0.25×(6.022×10 
23
 )
number of molecules = 1.505×10 
23
single molecule of hydrogen contains two H-atoms. So,
number of atoms = 2×(1.505×10 
23
 ) = 3.01×10 
23