Explanation:
the answer is not A, B,D now get it it is Clear C protists
 
        
             
        
        
        
Answer:
A tan might indicate sun damage to the skin.
Explanation:
Tanning is the process by which the skin is exposed to the ultraviolet rays that comes from the sun with the purpose of producing a dark-brown coloration called a TAN. 
A tan achieved by exposure to the sun can actually indicate that a person's skin is undergoing damage from the UV rays of the sun, hence, the skin responds by producing a protein called melanin, which protects the skin and later forms the dark coloration- tan. From this explanation, tan is got in response to a damaging signal received by the cell, hence, a tan might indicate sun damage to the skin.
 
        
             
        
        
        
Blood is considered<span> a </span>connective tissue<span> for two basic reasons: ( 1 ) embryologically, it has the same origin ( mesodermal ) as do the other </span>connective tissue types<span> and ( 2 )</span>blood<span> connects the body systems together bringing the needed oxygen, nutrients, hormones and other signaling molecules, and removing the wastes .</span>
        
             
        
        
        
It depend some plants have the waxy layer because of their cuticles and to make sure the leaf doesn't dry out or to protect it againts the harmful sun rays when directly shined on its good to have sun but not too much. HOPE THIS HELPS
        
             
        
        
        
A redshift is when light or other electromagnetic radiation from an object moves away from the observer.