What are the two types of digestion that occur in the human body? (Select 2) Enzymase

Technical

Mechanical

Chemical

When a gasoline engine burns gasoline, what type of chemical reaction is occurring?

Pls answer 42. 43. (i think i have 44. and 45. confused) 49. and 50.

Aline is drawn through (–4, 3) and (4, 3). which describes whether or not the line represents a direct variation? the line represents a direct variation because   -4\3 =4\3the line represents a direct variation because it is horizontal. the line does not represent a direct variation because it does not go through the origin. the line does not represent a direct variation because –4(3) ≠  4(3).