Answer:
Many of the parasitic invertebrates like worms are hermaphroditic.
Explanation:
A hermaphroditic organism can be described as an organism that has bole male and female gametes and can produce both female and male reproductive organs. In animals like snails and worms, hermaphroditism allows either partner to become male or female. While many of the other organism can undergo self-reproduction.
Hermaphroditism can also be seen in plants mainly the angiosperms. 
In humans, the people possessing this quality are called intersex humans.
 
        
             
        
        
        
Beyond durability, cockroaches are built to play defense. They have an exoskeleton to protect their soft bodies, and will hide whenever they're in the process of molting their exoskeleton. The exoskeleton is not only rigid but flexible to allow the roach to crawl into tiny crevices. Their legs are built for running
 
        
             
        
        
        
I  believe it's true hope it works
 
        
             
        
        
        
Answer:
It causes no pollution.
Explanation:
The first concern about implementing the method used for coral regeneration is that it causes no water pollution in order to protect the other aquatic animals from the harmful effect of the method used for restoration. If the harmful effect of coral regeneration is higher and disturbing so it must be avoided in order to save other organisms but if there is no harmful effect of the method used for coral regeneration so it must be used.
 
        
             
        
        
        
A) A metal forms a + charged ion, so D2+
B) A nonmetal forms a - charged ion, so A-
C) C2-
D) B+