You have been growing some animal cells in culture. the cells grow well for several weeks and then their growth slows down. you conduct some tests and determine that there is a lot of lactic acid in the culture fluid. which of the following is the most likely explanation for the poor growth of the cells?

a) there is too much glucose in the culture fluid.
b) there is not enough glucose in the culture fluid.
c) there is too much oxygen in the culture fluid.
d) there is not enough oxygen in the culture fluid.

The table presents the average day and night temperatures in five cities. it also reveals whether a city receives substantial rainfall (wet climate) or little rainfall (dry climate). which city’s rocks are likeliest to experience frost wedging, and why? a) city a because the consistently subzero temperature would prevent water from melting b) city b because it is a wet region and the temperature fluctuates around the freezing point c) city c because it receives plenty of rain fall and the weather is moderately cool d) city d because the hot and dry weather would cause rocks to absorb water