Consider the following hypothetical conditions: a population of 10,000 bacteria has a doubling time of 20 minutes under a given set of growth conditions. the culture is allowed to grow for 2 hours. Select the number of bacteria that best predicts the population size at the end of the two hour incubation period. assume there is no lag phase. a) 40,000
b) 640,000
c) 1,280,000
d) 320,000
e) 160,000

All cells have the same genetic information, but do not express the same genes. how is this possible? question 10 options: the differences are due to gene expression, which can be turned on and off. genetic material in a muscle cell is completely different from genetic material in a skin cell. genetic material is the same in all cells in the human body, except for reproductive cells. differences are due to major changes in genetic information from cell to cell.

The graph shows the amount of global warming happening in different ecosystems. which populations of organisms will likely decline the most as a result of climate change, and why? a. coral reefs because of the loss of the symbiotic algae living within their bodies b. penguin populations because the fish they eat will move into warmer waters c. mountain-dwelling birds because rising sea levels will relocate their food sources d. large cats in the rainforest because of decreased habitat loss for their prey

How does photosynthesis show the conservation of mass and energy?