Answer:
The job of both red blood cells and root hair cells is absorption. Red blood cells absorb oxygen through pulmonary veins and their capillaries in the lungs. Root hair cells, on the other hand, absorb water from the soil and transport them to adjoining cells for photosynthesis purposes.
 
        
             
        
        
        
Natural selection is basically when organisms with the best traits survive and pass on their good traits to their offspring so that they will adapt easily and survive. Organisms who do not have ‘good traits’ that help them adapt and escape predators will be killed or eaten before they reproduce. 
So in the end, natural selection is a form of evolution that allows the ‘fittest’ animals to survive and reproduce, while weeding out the unfit.
        
             
        
        
        
He found a nuclear structure (cells) in plants by looking through a microscope
        
             
        
        
        
Answer:
Native conformation
Explanation:
Native conformation is the correct structure or shape a protein should assume when folded, of which the protein is able to perform its operational function. Outside a proteins native conformation, or when denatured, the protein becomes unable to perform its usual main functions. The native conformation of a protein is the shape it takes in other to be functional.
 
        
             
        
        
        
Answer:
atria
Solution
the atria i believe is the upper chambers of the heart..