3. Which of these methods uses rock layer and bones to support the theory of evolution? *
20 points
a. Embryology
b. Biogeography
c. Molecular biology
d. Fossil record

In a cladogram' when does a group of organisms branch off

Crossing over and independent assortment are important activities that occur during meiosis. what is the significance of these activities

Define the apical impulse and describe its normal location, size, and duration. which abnormal conditions may affect the location of the apical impulse? explain the mechanism producing normal first and second heart sounds. describe the effect of respiration on the heart sounds. describe the characteristics of the first heart sound and its intensity at the apex of the heart and at the base. describe the characteristics of the second heart sound and its intensity at the apex of the heart and at the base.