One of them i think is biolorgy with 5th and 6th
        
             
        
        
        
Answer:
Plants can cause mechanical and chemical weathering
Explanation:
Plants can cause mechanical and chemical weathering. When plants cause mechanical weathering, their roots grow into rocks and crack them.It can also happen in streets or sidewalks. When plants cause chemical weathering, there roots release acid or other chemicals, onto rocks, which then forms cracks, and breaks apart.
 
        
             
        
        
        
Answer: Temperature control 
Explanation:
Arterio-venous anastomoses (AVAs) are direct connections between small arteries and small veins. In humans they are numerous in the glabrous skin of the hands and feet.
They are very significant in body temperature control. These temperature control are under the dual control of the central nervous system and the local thermal influence. While the arteriovenous anastomoses control the skin temperature through volume changes in the superficial venous bed, the arterioles and capillaries operate by generalized dilatation which results both in increased temperature and in redness of the skin.
 
        
             
        
        
        
G. cause if you just do a ratio everything adds up.
        
             
        
        
        
Answer:
por un menos contagio de bacterias como lo dice su nombre
Explanation:
«««“gel Anti bacterial”»»»