select all of the statement that are true concerning the ecological significance of prokaryotes
a. Bacteria and archaea are an important food source for other organisms.
b. Without prokaryotes, nitrogen wouldn't be made available to other organisms to use in DNA or protein synthesis.
c. Some species of bacteria cause the disease malaria.
d. Resident bacteria living in and on humans crowd out disease-causing bacteria.
e. Bacteria help us produce cheese.
f. Archaea are important agents of disease in humans.
a. Bacteria and archaea are an important food source for other organisms.
b. Without prokaryotes, nitrogen wouldn't be made available to other organisms to use in DNA or protein synthesis.
c. Some species of bacteria cause the disease malaria.
d. Resident bacteria living in and on humans crowd out disease-causing bacteria.
e. Bacteria help us produce cheese.
f. Archaea are important agents of disease in humans.
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Which of the following is not one of the reasons that some governments feel the need to control illegal immigration?
A) Concern that migrants will themselves become a burden on public resources B) Concern that migrants will take away jobs from residents C) Concern that migrants would bring unwanted cultural change D) Concern that some migrants will be a security threat E) Concern that migrants will bring disease and infect resident population
In many countries, the capital city is also the largest city.
Answer the following statement true (T) or false (F)
The largest nonpoint source of water pollution is:
A. Urban development B. Agriculture C. Industrial development D. Transportation
Among unique marsupials (animals with a pouch to carry their young) of the region are kangaroos, wombats, and:
A) dingo B) manatee C) Tasmanian devil D) white tail deer