Plants cannot make sugar molecules for energy without

i. water
ii. sunlight
iii. carbon dioxide
a.
ii and iii only
b.
i, ii, and iii
c.
i and iii only
d.
i and ii only

How many variables are altered in a good experiment? a.1 b.0 c.2 d.3

Which ideas did your answer contain? check all that apply. no food for organisms no oxygen in the atmosphere no trees or flowering plants no products based on trees or plants (building materials, medicines, fuels, fibers) no fossil fuels

The pharynx is the structure in the body that serves as a pathway of both air and food. how does the body make sure that food does not get into the lungs? the salivary glands secrete enzymes that pull food out of the air pathway. the small intestine pushes the air out of the digestive system. the pancreas breaks down food in the air pathway. the epiglottis closes the air pathway so that food will not enter it.