Answer:
The correct pathway for oxygen-poor blood is right atrium → right ventricle → pulmonary artery → lungs (first option).
Explanation:
Unoxygenated or oxygen-poor blood is that which comes from tissues that have exchanged O₂ for CO₂. The venous return is in charge of taking that blood to the heart and then to the lungs.
- Oxygen-poor blood reaches the <u>right atrium</u> from the vena cava.
- From the atrium the blood passes to the <u>right ventricle</u> through the tricuspid valve.
- The <u>right ventricle pumps the blood to the lungs</u> through the pulmonary arteries, the only arteries that carry venous blood.
Once in the lungs, the blood exchanges CO₂ for O₂, returning to the heart through the pulmonary veins.
The other options are not correct because:
- <em><u>Left atrium, left ventricle, aorta, body</u></em><em> corresponds to the flow of oxygenated blood that comes from the lungs and is pumped to the entire body.</em>
- <em><u>Left atrium, right atrium, left ventricle, right ventricle</u></em><em> not correspond to the order in which blood flows through the heart.</em>
- <em><u>Right ventricle, right atrium, pulmonary veins, lungs</u></em><em> not correspond to the flow of oxygen-poor blood.</em>
Approx. 25% of obese children maintain their higher weight as adults
Answer:
The correct answer is a. retinal disparity
Explanation:
Humans have two eyes that see the image at slightly different angles and for perception depth it is important to see the object from both the eyes. Retinal disparity is the way which helps in depth perception.
In this situation, the image seen by both the eyes at different angles is processed by the brain and after processing it is seen as a single image with the correct depth of the image. In many situations retinal disparity comes into play like diving.
Therefore if a person lacks an eye then retinal disparity is the visual cue that would be lacked by him.
