<span>Pregnancy tests detect Human Chorionic Gonadotropin, or HCG, that can be found in a pregnant woman's urine. Human Chorionic Gonadotropin is secreted by the embryo and serves to maintain the corpus luteum and the production of estrogen and progesterone.</span>
Answer;
-Spinal cord may be affected
Explanation;
-If the caudal portion of the Neural tube failed to develop properly, the spinal cord may be affected.
-The neural tube is the embryonic structure that develops into the brain and spinal cord.
-Its defects arise from failure of embryonic neural tube closure by the fourth week of pregnancy, causing malformations of the brain and spine.
Kinetic energy is absorbed and converted to potential energy in an endothermic reaction.
Answer:
The alveolar walls and capillary walls share a membrane. That's how close they're getting. This allows oxygen and carbon dioxide to readily pass from the respiratory system to the circulation. Oxygen molecules bind to red blood cells as they return to the heart.
