Answer:
65536 cells
Explanation:
starting from 1 cell at zero minutes there will be 1 (2^0) cell; 2^0 = 1
after 15 minutes there will be 2 (2^1) cells
after another 15 minutes ( 30 min) there will be 4 ( 2²) cells
after another 15 minutes ( 45 min) there will be 8 (2³) cells
after n number of 15 minutes there will be (2^n) cells
calculate number of 15 minutes in 4 hours
4 hours = 4 × 60 minutes
number ( n) of 15 minutes in 4 hours = (4 × 60 minutes) / 15 minute = 16
using the formula above and substitute 16 for n in the formula
Number of cells = 2 ^n = 2^16 = 65536 cells
First one is geosphere
second is biosphere
third is atmosphere
<span>3)Add iodine (1 min)
4)acid/alcohol wash (1 min)
5)Flood with safranine (1min)
6)Air dry and examine.
These times are for clinical microbiology and experimental methods employ optimal and more precise times (but overall its pretty close).
Down side of this method is that you must smear bacteria onto the slide and fix it by heating the underside of the slide with a bunsen burner. if they are pink then you have gram negative (Gram's stain didnt stick) if its purple then its gram positive(Gram's stain did stick) This is due to the peptidoglycan layers. Gram negative bacteria have only a thin layer of peptidoglycan as part of the cell membrane/wall where Gram positive have a very think peptidoglycan layer.</span>Source(s):<span>Medical Microbiology</span>
Answer:
It will remain a part of the environment
Explanation:
Energy cannot be destroyed but can change from one sate to another. Usually in a food chain animals eaten and the energy is passed from one animal to the next. In the case of larger animals the energy is only made available is they pass away or lose an appendage such as a tooth or antlers, that other animals can feed on.
If a shark is not preyed on and remains in the ecosystem, it's energy will not be cycled but this animal will get larger and larger.
Should a shark pass away and nothing feeds on it there are two things that will happen:
- Energy will be stored and the animal will eventually become volatile or slowly disintegrate and the energy will be released from the atoms and molecules when the bonds are eventually broken by chemical reactions brought on by the environment (sun. wind, currents, etc).
- The animal will eventually solidify and may turn into stone. The energy will be locked into the animal and will be encased and become a part of the substrate
It is not likely that a shark will keep it's energy and not be eaten by other animals after death but on the chance that it does it may slowly disintegrate or become solidified.
