Answer:
the structure of the lipid bilayer allows small,uncharged substances such as oxgen.and the carbondioxiode,and hydrophobic moleclues such as lipid to pass through the cell membrane
 
        
             
        
        
        
Answer:
<u>C. Photoautotrophic metabolism</u>
Explanation:
Chlorophyll helps in the photosynthesis process and it is main site where photosynthesis is happening. During photosynthesis, chlorophyll capture sunlight energy and transform Carbondioxide into glucose , which is the main energy source for an organism. So if the chlorophyll is present in a bacteria, it means it is going through photoautotropic metabolism.
 
        
             
        
        
        
Answer:
same atmospheric pressure?
1 and 2
2 and 3
2 and 4
 
        
             
        
        
        
Explanation:
The environmental noise and sound signals are associated with an increased incidence of arterial hypertensiont,heart failure and stroke 
  
        
             
        
        
        
The answer is c. Deciduous trees lose their leaves to prevent nutrient and water loss.
Losing leaves is a trees' strategy to survive cold winters. It is known that trees primarily lose water through leaves. In the winter, there is no enough water to replace that lost water. If the trees were not to throw away their leaves, they will soon dry out. Also, before falling the leaves begin, reabsorb all nutrients from the leaves and store it for the cold winter. Thus, losing leaves is important to prevent both nutrient and water loss during the winter.