Analysis of an ecg can reveal

a. damage to the coronary vessels

b. the sequence of the valvs opening and closing

c. the volume of blood passing through the heart

d. the condition of the conducting system.

e. none of the above

Which of the following observation darwin shape his concept of descent with modification? a) species diversity declines farther from the equator. b) fewer species live on islands than on the nearest continents. c) birds live on islands located farther from the mainland than the bird's maximum nonstop flight distance. d) south american temperate plants are more similar to the tropical plants of south america than to the temperate plants of europe. e) earthquakes reshape life by causing mass extinctions.