<span>Perhaps surprisingly, lakes and rivers constitute a tiny proportion of the world's total freshwater, so answer (b) is correct. Most of the freshwater on our planet is in fact locked up in ice and glaciers, some 68%. The majority of the rest, 30%, is actually underground, in springs and other groundwater feeders. That leaves just 2% that makes up all the rivers, lakes, ponds and other visible freshwater reservoirs that we see in our day-to-day lives.</span>
The answer is; B
G0 is the stage of the cell cycle where the cells do not divide.
Cancer cells are renegade cells whose cell cycle regulation has failed, mostly due to damage in their genetic material, hence the cells proliferate unregulated. The checkpoints in the stages of the cell cycle fail. An example is the failure of tumor suppressor genes that suppress the action of cyclins that promote the progression of the cell cycle.
If the food type changes in a given environment, then the amount of each type of bird beak will change as birds with beaks more suited to the available food will consume more successfully over time. <span>The independent variable of the lab is the type of food that is available to the birds. The dependent variable of the lab is the frequency of each type-size and shape-of beaks. The conclusion will state that favourable traits place one species in a more optimal position to survive in a given envronment.</span>
one reason for the decline inthe population of marine iguqnes is that invasive speciesnare preying upon themvand there eggs hope this helps
B. Mitochondria
The mitochondria is where ATP is made, hence why it is often called the "powerhouse" of the cell.
