Answer:
1) A cardiovascular system is an organ system that conveys blood through vessels to and from all parts of the body, carrying nutrients and oxygen to tissues and removing carbon dioxide and other wastes.
2) "Capillaries connect the arteries to veins. The arteries deliver the oxygen-rich blood to the capillaries, where the actual exchange of oxygen and carbon dioxide occurs. The capillaries then deliver the waste-rich blood to the veins for transport back to the lungs and heart. Veins carry the blood back to the heart."
3) A heart attack is a blockage of blood flow to the heart muscle.
Answer:Use the paragraph to complete the activity.
The two children approached the cave cautiously. The interior looked dark and damp. Prodding each other gently, each child tried to get the other to enter the cave first.
In three to five sentences, rewrite the paragraph using dialogue to make the story more vivid.
Explanation:
Answer:
Principio moral que inclina a obrar y juzgar respetando la verdad y dando a cada uno lo que le corresponde.
Explanation:
Among the choices, option B. Hasn't, is a singular contraction. "Hasn't" is the shortened word for "has not". The rest of the choices are plural contractions: Don't from do not, Haven't from have not, and Weren't from were not.