Select all the correct answers. Betty learned about embryology in her science class. At home, her brother Nathan noticed the human embryo and the fish embryo in her science notebook. He remarked that the embryos looked the same. How can this be true?

Both embryos have pharyngeal arches.

The fish embryo has evidence of lungs.

The human embryo has scaly skin.

Both embryos have fins.

Both embryos have a notochord.

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.

Why is a mushroom considered a heterotroph

The data below simulate what happened to peppered moths in england after the industrial revolution which statement best describes the process that produced one of the emding populations of moths ?light colored moths were selected for on light colored trees