Answer:
D. pituitary gland
~+. lil more info .+~
The circulatory system consists of three independent systems that work together: the heart (cardiovascular), lungs (pulmonary), and arteries, veins, coronary and portal vessels (systemic). The system is responsible for the flow of blood, nutrients, oxygen and other gases, and as well as hormones to and from cells.
 
        
             
        
        
        
Answer:
talk to your teacher
Explanation:
talk to your teacher about your missing assignment. they will look for it for you, but if they can't find it, you might have to redo the assignment. they might also give you an exemption on the assignment, but that's unlikely.
if you're worried about talking to them face-to-face, you could email them.
 
        
             
        
        
        
Answer:
abiotic components or abiotic factors are non-living chemical and physical parts of the environment that affect living organisms and the functioning of ecosystems.
 
        
             
        
        
        
Habitat, community, ecosystem,biome, biosphere