Which of the following represents an effective method for controlling yeast populations in a test sample?
a. constant stirring to break up biofilms
b. percolating oxygen through the sample
c. adding antibiotics to the test sample
d. adding enzymes to inhibit mating factor
d. adding enzymes to inhibit mating factor
You might also like to view...
The body symmetry of adult echinoderms could best be described as ________.
A. fivefold symmetrical B. fourfold symmetrical C. bilateral D. asymmetrical
The ________ exchange capacity is a basic measure of soil quality and increases with higher clay and organic matter content
Fill in the blank(s) with correct word
In the year 2317, a group of human pioneers decide to colonize Mars. The distance between Mars and Earth prevents the possibility of new members joining the colony or the members of the colony interbreeding with humans on Earth
This situation is an example of A) extinction. B) the bottleneck effect. C) random mutation. D) continental drift. E) the founder effect.
Light consists of units of energy called
A. electrons. B. calories. C. neutrons. D. photons. E. pigments.