Name three differences between how microbes grow in a closed pure batch system as compared to in nature
What will be an ideal response?
Microbes are unlikely to experience a phase of rapid exponential growth in nature because the growth conditions for nutrients, pH level, and temperature will not be optimized. When growing in nature, it is uncommon to have a pure culture and as a result of that bacteria will compete for nutrients and release different antibiotics in order to horde vital resources. Furthermore, when growing in nature, bacteria are likely to be growing as a biofilm which can significantly change the metabolism of the bacteria as well as several other features.
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Unequal crossing over often results in the formation of duplicate copies of existing genes. At what phase of meiosis can unequal crossing over occur, and why does this happen?
What will be an ideal response?
Smallpox is a disease in which
A. recurrent episodes are called shingles. B. the virus becomes latent in ganglia of sensory neurons. C. fever, malaise, and rash occur. D. transmission occurs by direct contact with skin crusts. E. All of the choices are correct.
The passive transport of water across a membrane from a solution of lower solute concentration to a solution of higher solute concentration is best described as
a) facilitated diffusion b) osmosis c) passive transport d) active transport e) general diffusion
You cannot increase the amount of air you exhale.
Answer the following statement true (T) or false (F)