Answer:
D
Explanation:
Prokaryotic are simple cells and do not have nucleus.
 
        
                    
             
        
        
        
It would require that the csf acts exclusively on : Myeloblasts
myeloblasts is a unipotent stem cell, which differentiate into one of the effectors of the granulocyte series. 
It is commonly found in bone marrow.
        
                    
             
        
        
        
Answer:
The correct answer is: D) The kidneys are paired organs that regulate water and electrolyte balance in terrestrial vertebrates.
Explanation:
The kidneys are the organs that control, for example, <u>the volume of body fluid compartments, acid-base balance, and electrolyte concentrations. </u>These organs are also key to <u>eliminate the toxins from the body. </u>
The kidneys are always two (when not is because of a pathology or the surgical removal of one of the two) and are present in vertebrates.
The kidneys <u>do not regulate blood glucose</u>. That is the job of the pancreas through two hormones called insulin and glucagon.
The kidneys <u>do not remove nitrogenous wastes</u> (urea) from the urine, instead they filtrate these wastes from the blood for these to be excreted through urine.
 
        
                    
             
        
        
        
Answer:
A
Explanation:
photosynthesis converts light energy to chemical energy and not the other way round 
product of photosynthesis is oxygen and energy 
photosynthesis cannot occur is light energy is not available
 
        
             
        
        
        
The body needs calcium and phosphorous because phosphorus works with calcium to help build bones