Similarities:
• the eye and the ear are both passive structures
• the eye and the ear both respond to brain commands
Differences
• eyes relay the location and movement of objects in our visual field and the ears convey information about the actions of objects both in and outside of our visual field
• eyes are designed to sense light, while the ears are equipped to detect sound
Answer:
A. . Blood from the veins enters the ventricles.
C. Atria push blood into the ventricles
Explanation:
Blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. As the atrium contracts, blood flows from your right atrium into your right ventricle through the open tricuspid valve.
1. The right atrium receives oxygen-poor blood from the body and pumps it to the right ventricle through the tricuspid valve.
2.The right ventricle pumps the oxygen-poor blood to the lungs through the pulmonary valve.
3. The left atrium receives oxygen-rich blood from the lungs and pumps it to the left ventricle through the mitral valve.
4. The left ventricle pumps the oxygen-rich blood through the aortic valve out to the rest of the body.
Answer:
The fact that the information is not provided or endorsed by a medical professional is an indication that the information is unreliable.
Explanation:
Information provided by the lay community or sponsors of the treatment is, in general, not reliable. It is unwise to follow advice and information contained in testimonials because these people do not have the necessary medical knowledge and usual research or laboratory testing data to support treatment or drug in question.
Antigen recognition by T lymphocytes
