Answer:
B. Form of active transport
 
        
             
        
        
        
Hydrocarbons. (organic compounds entirely made up of hydrogen and oxygen)
        
             
        
        
        
Coronary artery disease is when plaque in arteries causes blood to not flow correctly or as smoothly as possible. Therefore, a heart attack can occur if blood can't flow.
        
             
        
        
        
Mono and di are Greek numbers, mono means one, mostly u will find it for the thing which is like ONE, (Idk) Like, in maths you use Monomials,, which meAns one term, so like that.... and DI means two , mostly you will find it for two things,,, like in Science, DIoxide,,, so you need to oxides to make dioxide,, CARBON-DIOXIDE,,, 
HOPE THIS HELPS!
        
             
        
        
        
Answer:
Occurrence. In primary succession pioneer species like lichen, algae and fungi as well as other abiotic factors like wind and water start to "normalize" the habitat. Primary succession begins on rock formations, such as volcanoes or mountains, or in a place with no organisms or soil.
Explanation: