25 . Potassium is a necessary nutrient in order to maintain the function of our cells. What would occur to a person that is deficient in potassium

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?

This is a typical grassland food web. it is also a small picture of an important cycle on earth: the carbon cycle. describe how the carbon gets into this food web. a) bacteria and fungi, the decomposers, recycle carbon from dead organisms. b) carbon is found in the grass and is passed from one level to the next in this food web. eliminate c) all living things give off carbon dioxide as a by-product of respiration and it is released into the atmosphere. d) plants use carbon dioxide as a reactant in photosynthesis, to make usable chemical energy in the form of a sugar.

On his trip to the galapagos islands, darwin determined that animals on the islands