I believe the correct response is A. The population of secondary consumers would decrease, as now these organisms can't obtain energy through the food they consume which is the primary consumers as there is none and thus the population in higher tropic level dependent on them would decrease. This is the secondary consumer.
        
                    
             
        
        
        
It’s 2, 4, and 6!!! Please mark me brainlest❤️
        
             
        
        
        
Answer:
Options B.
They are both diploblastic.
Explanation:
Cnidarians are group of aquatic animals that live both in fresh water and Marine water. They are distinguished by the possession of specialized cells called cnidocytes for capturing prey. They are radially symmetrical and have two body layers ectoderm and endoderm separated by jelly layer called mesoglea.
Examples are Hydra, corals, sea anemone and jelly fish.
Ctenophores are phylum of Marine animals that are found in every where. They are characterized by vast of cilia which is use for swimming. They are bilaterally symmetrical , they have mouth and don't have anus. They don't have respiratory, excretory and circulatory system. They are diploblastic i.e they have two body layers but some are triploblastic.
They have nemacyctes for capturing prey.
Examples are nuda, tentaculata e.t.c.
 
        
             
        
        
        
The fact that each plant gets only one allele
 from each parent plant is detailed in the law of segregation