Answer: The answer is b.
Explanation: The flowers are one of the most differentiating features of angiosperms. They are the reproductive structures of angiosperms. The flower has a thalamus that is a short axis and four whorls of sporophylls arranged on the thalamus. The four whorls of floral leaves include calyx, corolla, androecium and gymnocium.
 
        
             
        
        
        
The answer is D. receiving blood from the gills
        
             
        
        
        
Answer:
Explanation:
A habitat (which is Latin for "it inhabits") is an ecological or environmental area that is inhabited by a particular species of animal, plant or other type of organism. ... Human habitat is the environment in which human beings exist and interact. For example, a house is a human habitat, where human beings sleep and eat.
 
        
                    
             
        
        
        
The experimental group is the group you change from the normal. the fertilizer group is experimental
        
                    
             
        
        
        
The answer is <span> b. a process of change through time.
Evolution is a process of change through time.  It does not result in progress. Natural selection, one of the mechanisms of evolution, can result in progress and </span>cause some organisms to develop characteristics they need. But generally speaking, natural selection is not the only mechanism of evolution. Other evolutionary mechanisms, such as genetic drift, mutations, migration, can in some cases have a harmful outcome.