Structure and Function is my answer
        
             
        
        
        
<span>your answer ..is sea lilies </span>
 
        
             
        
        
        
Answer:
The correct answer would be crawling and sucking reflex.
Crawling reflex is the reflex by which baby make crawling movements when placed on abdomen.
It helps in the baby to find his or her mother and food.
Sucking reflex helps the baby to eat food. Through this reflex, the baby starts sucking when area around the mouth is touched. For example, when the nipple is placed inside the mouth of the baby, he or she starts sucking.
 
        
             
        
        
        
If you are at a picnic and the sky is filled with cumulus clouds, there is a low or no chance at all that you will get wet.
Cumulus clouds are associated with fair weather, and although there may be rain in some cases, there usually isn't. 
        
             
        
        
        
Answer:
One-half b c sine (60 degrees)
One-half a squared sine (60 degrees)
StartFraction a b sine (60 degrees) Over 2 EndFraction
Explanation:
The area rule states that the area of any triangle is equal to half the product of the lengths of the two sides of the triangle multiplied by the sine of the angle included by the two sides.
From the question, Equilateral triangle refer to a triangle with equal angle and equal sides. The sum of an angle in a triangle = 180°; this implies that each angles have 60°.
∴ the three options that defines the expressions that represent the are of triangle ABC are:
One-half b c sine (60 degrees)  
 i.e 
One-half a squared sine (60 degrees) ; if the two opposite sides posses the same parameters.
 i.e 
StartFraction a b sine (60 degrees) Over 2 EndFraction
i.e 