Englemann is the scientist who showed that plants use red and blue light in photosynthesis.
-Engelmann devised an experiment to learn which wavelengths (colors) of light were the most effective in carrying out photosynthesis in the green alga Spirogyra.
-He found that certain red and blue wavelengths of light are the most effective in photosynthesis because they have exactly the right amount of energy to energize, or excite, chlorophyll electrons and boost them out of their orbits to a higher energy level.
<span>Archaebacteria kingdom is Unicellular, since they are single-celled organisms.</span>
Answer:
The honeycomb-like appearance of this sandstone is a result of frost wedging. The honeycomb-like appearance of this sandstone is a result of frost wedging
Explanation:
Answer:
Explanation:
given cells at incubation = 2 million (2 x 10^6) Staph
cells at the start of incubation = 200 Staph
Total time =6hrs = 360minutes
Recalling that Number of generations = Log(cells at incubation) - Log (cells at the start of incubation)/0.301
- Number of generations = Log 2000000 - log 200 /0.301
= 20.93 generations.
- hence generation time = total time/number of generations
= 360/20.93 = 17.20minutes
as said, that the apple pie is left after 2hrs, it implies 8hrs (480minutes) will be the new total time; number of generations = total time / generation time
= 480/17.20minutes = 27.90 generations
- hence total number of bacteria after 8hrs = 2^n generations x initial number of bacteria
= 2^27.90 x 200 staph = 5.009 x 10^10 bacteria