Exam 13: Prospecting for Biological Gold: Biodiversity and Classification

-Fossils of ancient organisms are found in deep layers of rock, while the fossils of more recent organisms are found in shallower layers. Which two groups' common ancestor would be found in relatively shallow fossils?

Both mitochondria and chloroplasts originated from free-living

How does the DNA of related organisms show similarity?

In which era did primitive bacteria first appear?

According to the most current classifications, which of the following groups is the most different from all the others?

Which of the following animal traits would be of most interest to bioprospectors?

Different phyla of fungi are distinguished from each other by what trait?

The most important role of bacteria in the environment is

DNA is found in every cell of an organism. What subset of DNA changes would be most useful to molecular biologists to determine evolutionary relationships?

In what way is a member of domain Archaea similar to a member of domain Bacteria?

The entity most likely to profit when a pharmaceutically important molecule is discovered in a species of rainforest tree is

Once some bioprospectors have determined that a representative of a species has no useful compounds, that species is excluded from further study by other bioprospectors.

With the evolution of ________, plants were able to grow taller.

You work for a firm that has hired you to look for drugs that work in a similar way to aspirin. Your first search will be among organisms in which kingdom?

Which of the following would be considered bioprospecting?

Which of these is a true statement about viruses?

When plants first colonized land, the space they occupied was two-dimensional: the surface of the land. Which adaptation allowed plants to occupy a three-dimensional environment?

Why might Archaea be more difficult to grow in the lab than Bacteria?

What is a virus?

What does the main trunk at the far left of the "tree of life" represent?