Exam 24: Microbes and the Environment

Living or dead organisms that occupy an organism's habitat are called biotic factors.

What microorganisms would you pick as likely being present in high salt lakes and seas?

Toxic substances accumulate through natural trophic flow of an ecosystem.

The bacterium Thiobacillus secretes sulfuric acid into the environment.

The combustion of fossil fuels,such as coal,oil,and gas,have contributed to the steady increase in atmospheric CO₂ gas over the last 25 years.

Organisms whose sole source of carbon for growth is CO₂ are called

Which of the following is involved in completing the sulfur cycle?

Thiobacillus thiooxidans is found in an environmental sample.Which of the following should then apply to this sample?

You have been diagnosed with a neurotoxic poisoning after having ingested an algal toxin,called brevetoxin,produced by Karenia brevis.In what food did you likely pick this pick up?

Which of the following genera can carry out denitrification to completion?

Using microbes to break down or remove toxic wastes in water and soil is called

Which of the following are primary photosynthesizers?

Phytoplankton is composed of protozoa and small invertebrates.

Which of the following harbor microbes producing methane?

The terrestrial realm of the biosphere is distributed into particular climatic regions called

The zone of soil around roots of plants is called the

Which environment represents the largest pool of microbial genes?

Which organism is a nitrogen fixing symbiont of legumes?

The study of the practical uses of microbes in various industries and technologies is

Which of the following is mismatched?