Human Health — Cumulative exam Answers

Consider the diagram that depicts the lysogenic and lytic cycles. In which step of the diagram does the virus release a protein that causes the cell wall to burst?

When comparing dogs to wolves, scientists found evidence that supports the idea they come from a common ancestor. Which combination of evidence would most strongly support this idea?

Which of the following could be a nucleotide of DNA?

Which best describes the tongue, ears, and nose?

Ralph is looking at a blood vessel under a microscope as part of his study about the cardiovascular system. He notices that the vessel contains blood and has valves. What is the blood vessel that he is observing?

What observation led researchers to propose that chloroplasts evolved from cyanobacteria?

While traveling across the Atlantic, a scientist encountered an unfamiliar lizard. He used a classification tool that relied on observable features to determine its species. Once he knew the species, he could learn more about the type of environment the lizard was adapted to.Which best describes the purpose of identifying the lizard?

Which is a component of the modern cell theory that was not part of the original cell theory?

The first strands of DNA were observed through which microscope?