Semi permeable means that some things can go in and out of the cell, but some cannot. Permeable means it allows things to pass through it, so semi permeable means only some things pass through.
        
             
        
        
        
Because any other substance couldn't carry the heat and the amount of surface area gives it more of an opportunity to cool down
        
             
        
        
        
  The heart has 4 chambers.
        
                    
             
        
        
        
here are majorly 12 factors influence Soil fertility
Infiltration of water.
Soil structure.
Active Soil life.
Content of organic matter.
Minerals present in the soil.
Acidity or Soil pH.
Water Retention capacity of soil.
Water draining ability of the soil.
(google)
 
        
             
        
        
        
Answer:
by having students draw germ cells and gemetes containing chromosomes with labelled alleles , instructors can assess student understanding of the structure of chromosomes .