75. researchers ask questions they assume can be answered.\ntrue\nfalse\n76. pesticides can enter the food…

75. researchers ask questions they assume can be answered.\ntrue\nfalse\n76. pesticides can enter the food chain directly or indirectly.\ntrue\nfalse\n77. which of the following is not a part of the gi tract?\nmouth\nsmall intestine\nlarge intestine\nliver\nrectum

75. researchers ask questions they assume can be answered.\ntrue\nfalse\n76. pesticides can enter the food chain directly or indirectly.\ntrue\nfalse\n77. which of the following is not a part of the gi tract?\nmouth\nsmall intestine\nlarge intestine\nliver\nrectum

Answer

Brief Explanations:

  • For question 75, researchers formulate questions with the expectation of finding answers, so it's true.
  • For question 76, pesticides can contaminate plants directly and then move up the food - chain, or contaminate soil/water which indirectly affects the food - chain.
  • For question 77, the GI tract consists of the mouth, small intestine, large intestine, and rectum. The liver is an accessory organ to digestion, not part of the tract itself.

Answer:

  1. True
  2. True
  3. Liver