Make sure you have understood everything in this section (Lessons B9, B10, B11, B12 and B13).
Use the Self-Check below, and the Self-Check & Lesson Review Tips to guide your learning.
This is also a good time to visit your Section 3 Checklist to make sure you have completed all the recommended learning activities.

Unit B Section 3 Self-Check

Instructions


Complete the following 6 steps. Don't skip steps – if you do them in order, you will confirm your understanding of this section and create a study bank for the future.

  1. DOWNLOAD the self-check quiz by clicking here.

  2. ANSWER all the questions on the downloaded quiz in the spaces provided. Think carefully before typing your answers. Review the lessons of this section if you need to. Save your quiz when you are done.

  3. COMPARE your answers with the suggested "Self-Check Quiz Answers" below. WAIT! You didn't skip step 2, did you? It's very important to carefully write out your own answers before checking the suggested answers.

  4. REVISE your quiz answers if you need to. If you answered all the questions correctly, you can skip this step. Revise means to change, fix, and add extra notes if you need to. This quiz is NOT FOR MARKS, so it is perfectly OK to correct any mistakes you made. This will make your self-check quiz an excellent study tool you can use later.

  5. SAVE your quiz to a folder on your computer, or to your Private Files. That way you will know where it is for later studying.

  6. CHECK with your teacher if you need to. If after completing all these steps you are still not sure about the questions or your answers, you should ask for more feedback from your teacher. To do this, post in the Course Questions Forum, or send your teacher an email. In either case, attach your completed quiz and ask; "Can you look at this quiz and give me some feedback please?" They will be happy to help you!

Be a Self-Check

Superhero!



Self-Check Quiz Answers

Click each of the suggested answers below, and carefully compare your answers to the suggested answers.

If you have not done the quiz yet – STOP – and go back to step 1 above. Do not look at the answers without first trying the questions.

Mechanical and chemical digestion both occur in the stomach. Mechanical digestion occurs when the stomach muscles physically squeeze and churn food into smaller pieces. Chemical digestion occurs when stomach acid and digestive enzymes break down food into smaller pieces.
The diaphragm changes air pressure in the lungs. When the diaphragm moves downward, the volume of the chest increases. This reduces pressure in the lungs and causes air to move into the lungs. When the diaphragm relaxes upward, the volume of the chest decreases. This increases pressure in the lungs and causes air to move out of the lungs.
The heart muscle strongly contracts to pump blood to all parts of the body. The heart muscle is constantly moving. It needs lots of oxygen and nutrients so that the muscle cells can produce energy and keep moving.
The body can function without one kidney, but it cannot function without both kidneys. Kidneys filter wastes out of the blood and regulate water balance in the body. With any kidneys, wastes build up in the blood, which causes body cells to die.
Sensory receptors on the legs sense the movement of the cat’s soft fur against the skin. The sensory neurons send a message of this sensation from the skin receptors to the spinal cord. The message transfers through the spinal cord neurons to the brain. The brain processes the message, and sends a signal back through the spinal cord to motor neurons in the neck. The motor neurons cause the neck muscles to tilt the neck down so the woman can see the cat.