Cells throughout the body share similar structures, such as the Na+/K+ pump, and the same genetic code. But, a nerve cell is very different from a muscle cell in function and appearance. Why is it important for humans to have a wide variety of specialized cells?

What can be said about farmers in highly developed countries? a) they have little or no negative impact on the environment. b) they practice subsistence agriculture. c) they are able to incorporate polyculture into their farming practices. d) they utilize organic farming techniques on a regular basis. e) they rely on large amounts of energy from fossil fuels.

How does human environment effect the biosphere

When new rock is added to an oceanic ridge, the magnetized strips on either side of the ridge are evidence of sea-floor spreading. this is because the rocks on the two sides of the ridge o are equal in width and in polarity are polar opposites oare magnetized vary in width but are equal in polarity