WILL GIVE BRAINLIEST AND POINTS
A blockage in a blood vessel leading to the brain may cause an area of the brain to stop working and die. Which term is used to describe this condition?
a.) stroke
b.) heart attack
c.) arteriosclerosis
d.) electrocardiogram

b

Explanation: a stroke won’t reach the brain a heart attack will

answer: land bridge theory. land bridge theory held that shifting portions of dry land explained the finding of identical species on different continents. plate tectonic theory eventually eliminated the land bridge theory.

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 ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs where it is oxygenated.