#Question id: 11400
#Unit 9. Diversity of Life Forms
What is the primary ecological role of prokaryotes?
#Question id: 11401
#Unit 9. Diversity of Life Forms
In a hypothetical situation, a bacterium lives on the surface of a leaf, where it obtains nutrition from the leafʹs nonliving, waxy covering, while inhibiting the growth of
other microbes that are plant pathogens. If this bacterium gains access to the inside of a leaf, it causes a fatal disease in the plant. Once the plant dies, the bacterium
and its offspring decompose the plant. What is the correct sequence of ecological roles played by the bacterium in the situation described here? Use only those that
apply.
1. nutrient recycler 2. mutualist 3. commensal 4. parasite 5. primary producer
#Question id: 11402
#Unit 9. Diversity of Life Forms
How can prokaryotes be considered to be more successful on Earth than humans?
#Question id: 11499
#Unit 9. Diversity of Life Forms
Biologists have long been aware that the defunct kingdom Protista is paraphyletic. Which of these statements is both true and consistent with this conclusion?
#Question id: 11500
#Unit 9. Diversity of Life Forms
The strongest evidence for the endosymbiotic origin of eukaryotic organelles is the similarity between extant prokaryotes and which of the following?
#Question id: 11501
#Unit 9. Diversity of Life Forms
According to the endosymbiotic theory of the origin of eukaryotic cells, how did mitochondria originate?