Answer:
b, this is because a consumer, is something that consumes something, and the clam consumes the energy and nutrients when it filters the particles in from the water. Because it consumes these, it is a consumer for that reason. So, the answer is b. Hope this helps!!!
 
        
             
        
        
        
Answer:
Red blood cells, root hair cells in plants
Explanation:
Red blood cell: it has no nucleus. It offers the cell to carry more hemoglobin
Root hair cells in plants: they have a large cytoplasm which enables them to take water from the soil.
 
        
             
        
        
        
Answer: Both formulas identify the specific atoms in a particular compound. However, a structural formula also shows how the atoms in a compound are bonded together.
Explanation:
Molecular formula is the chemical formula which depicts the actual number of atoms of each element present in the compound.  
Empirical formula is the simplest chemical formula which depicts the whole number of atoms of each element present in the compound.
Structural formula is the formula which depicts the actual number of atoms of each element present in the compound by showing the bonding between the atoms.
Lewis structures show the valence electrons around each atom present in the compound.
 
        
                    
             
        
        
        
new species will take their place
Explanation:
The frontier ethic assumes that saving endangered animal species may be considered foolish because new species will take their place. Frontier ethics suggests that the earth has an unlimited wealth of resources. 
- The theory counters the sustainable ethics view to utilization of resources. 
- Frontier ethics believes that if a resource becomes depleted in a part of the world, the earth will produce new ones to balance up. 
- This is not economic or sustainable view to use of resources. 
Learn more: 
Production possibilities frontier brainly.com/question/12101823
#learnwithBrainly
 
        
                    
             
        
        
        
Answer:
primary structure
Explanation:
This is the amino acid chain