Answer:
Stresses such as lack of nutrients, space, competition and water availability.
Explanation:
Lack of nutrients, space, competition and water availability are the stresses that the bryophyte can experience by living on land. The morphological or physiological features such as lowering transpiration rate by stomata, attain specialized structures to collect sunlight and fulfill water requirement by absorbing water from the air if no water is available in the soil etc are the features that the plant has to attain to cope with these stresses.
 
        
             
        
        
        
The answer is A: The rough ER has visible ribosomes.
        
                    
             
        
        
        
The sign of good health in an animal is bright eyes.
Explanation:
The signs that usually is seen in a healthy animal, is its ability to stand straight and have a keen observation. The Animal will have bright alert eyes. 
A healthy animal has quick movements. It gets up quickly if its sitting down. The respiration of the animal will be slow and regular.
The saliva will not be dripping from the animal's mouth. It will have a smooth and shiny coat and its nose will not have any discharge but remain dry.
Any sign of rapid breathing or dull inert eyes, etc means that the animal is not healthy and is sick. A healthy animal acts calmly and does not exhibit any anxious behaviour.
 
        
             
        
        
        
Condons are complimentary based triplets in DNA.