Answer:
the answer should be A. It assists organisms in obtaining certain dissolvable substances
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In the third picture : I would not play with any kind of electrical appliances which could harm me and i would also teach this to my siblings. I would not touch them with wet hands .
 
        
             
        
        
        
A health maintenance organization, or HMO, is a group insurance policy in which covered members must get referrals from a primary care physician to see a specialist. Relative to other group policies, such as PPO and POS, HMOs offer financial savings and preventative health advantages. However, they present several restrictions for members.
 
        
             
        
        
        
Answer:
Medullary sinuses contain histiocytes (immobile macrophages) and reticular cells. A lymph node contains lymphoid tissue, i.e., a meshwork or fibers called reticulum with white blood cells enmeshed in it. The regions where there are few cells within the meshwork are known as lymph sinus.
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