Answer the following statements true (T) or false (F)

1. All infectious diseases are caused by pathogens.
2. Pathogens greatly outnumber nonpathogens.
3. Using microorganisms to clean up the environment is known as bioremediation.
4. Microorganisms are essential in the field of genetic engineering.
5. Microorganisms probably appeared on earth about 3.5 million years ago.


1. TRUE
2. FALSE
3. TRUE
4. TRUE
5. FALSE

Biology & Microbiology

You might also like to view...

The number of ill individuals within a population is referred to as

A) morbidity. B) mortality. C) residency. D) prevalence.

Biology & Microbiology

Which of the following is inhibited by DNAse?

A. Transformation B. Conjugation C. Transduction D. None of the answers are correct

Biology & Microbiology

The inner cell mass, which is formed when the blastula rearranges into two layers, will go on to become what?

a. myometrium b. endometrium c. embryo d. placenta

Biology & Microbiology

A honeybee's dance in its dark hive around a crowd of fellow workers conveys where food is, relative to the direction of the sun. This is an example of ____ communication

a. visual b. chemical c. tactile d. acoustical e. direct

Biology & Microbiology