Identify the 5 main human influenced causes of extinction, starting with the cause with the greatest impact and moving towards the lowest impact.
What will be an ideal response?
| Greatest impact - | habitat loss |
pollution
overexploitation
| Least impact - | disease |
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Microbes were first formally observed during the mid-1600s, but the cell theory was not enunciated until 1839. Write a brief essay explaining why microbiology did not become a formally recognized science until Louis Pasteur's and Robert Koch's time
What will be an ideal response?
In an atom, the electrons are
a. housed within the nucleus. b. moving through the nucleus. c. present in various energy shells. d. usually at rest, but occasionally move. e. positively charged.
All of the following are characteristics of spread plates except ________.
A. spread plates readily grow anaerobic bacteria B. spread plates are typically inoculated with a bent glass rod C. they have colonies that grow on the surface of the agar D. specimens are typically diluted prior to inoculation of a spread plate
Nongrowing cells continuously degrade and resynthesize cellular molecules during a process known as cellular turnover.
Answer the following statement true (T) or false (F)