Why would a Polar Bear's white fur and a Snowy Owl's white feathers not be good examples of homologous structures

What are two ways in which waves erode the land?

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.

Which of the following is the sl unit used to measure temperature a. kilogram b. liter c. meter d. kelvin