1: What would happen if there were no villi on the walls of small intestine? 2: If you eat food while hanging upside down, do you think it will still go
through the alimentary canal?

3: Which food will take longer time to digest, Sugar candy or Potato chips?
Justify your answer

1. If you don't have functioning intestinal villi, you can become malnourished or even starve, regardless of how much food you eat, because your body simply isn't able to absorb and make use of that food.

2. Yes. Even if we eat food while hanging upside down, it will go through the alimentary canal because of the process of peristalsis. The muscles of the oesophagus will push the food downwards in a wave like action throughout the alimentary canal.

3. Sugar Candy cuz it has carbohydrates in the form of starch and it takes a long time to get digested due to presence of complex molecules.

hope helpful <3

the answer to your question is:

c. complementary base-pairing