Answer:
water, air , nutrients
Explanation:
water for circulation , air for breathing , nutrients for growth
 
        
             
        
        
        
Answer:
Bryozoans belong to phylum bryozoa
while corals belong to phylum cnidaria. 
Bryozoans are more advanced than corals.
bryozoans have an anus while corals do not have an anus
bryozoans tentacles don’t sting like corals.
 
        
             
        
        
        
The correct answer is <span>C. You cannot view live specimens because the necessary preparation kills cells. </span>
The answer is pretty self-explanatory. Unlike it, regular microscopes can view living creatures such as bacteria or similar.
        
                    
             
        
        
        
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:
The light reactions occur when light is absorbed by the chlorophyll in plants. ... Water splits, producing oxygen gas which is released through the stomata on plant leaves. The dark reactions occur in the stroma of the chloroplasts when carbon dioxide is converted to sugar using energy derived from ATP and NADPH.
Explanation: