Answer: Sand, silt, and clay
 
        
             
        
        
        
Answer:
 Pericardial sac has protective tole
Explanation:
Pericardial sac or pericardium is a fibrous tissue that surrounds the heart. It has two coats:
- the outter coat-parietal pericardium
- the inner coat-visceral pericardium or epicardium which is double-layered and contains pericardial fluid between those two layers (pericardial fluid is necessary as a lubricant for the heart movement).
Besides lubrication, percardium also protects heart from infections, fixes it and limits its movements.
 
        
             
        
        
        
Answer:
A- Schemas
Explanation:
Schemas are used to categorize information and draw conclusions, based on patterns and the relationships between them. In this case, you see your new roommate looking and behaving the way we believe an intellectual person would and you automatically assume that he/she is intellectual. 
 
        
             
        
        
        
Answer:
The answer in B) The offspring have one allele that codes for red and one allele that codes for white. 
Explanation:
Let's say that the red flower has Bb, and the white flower has bb. In a punnet square you'd get 50% being Bb and another 50% being bb. The allele bb would be pink. 
I hope this helps!