Biochemical cycles are an intricate factor for life on earth. They provide consumers and producers with the components they need
to live and grow. To a complex ecosystem such as Earth, environmental changes such as an increase in greenhouse gases can have dramatic effects. However, not all
biochemical cycles are affected equally by such changes.
Which major cycle is LEAST negatively influenced by an increase in greenhouse gases and why?
A.Carbon cycle, because the greenhouse gas is the major component of the carbon cycle.
B.Phosphorus cycle, because it is a biogeochemical cycle and does not involve the atmosphere.
C.Oxygen cycle, because oxygen can buffer greenhouse gases by binding to it and converting it with hydrogen to water.
D.Nitrogen cycle, because the atmosphere already has very low amounts of nitrogen, and greenhouse gas converts nitrogen into nitric
oxide.
Cells from the cheek are a type of epithelial cell, similar to skin. ... They can be seen faintly even at 40x (scanning power), but the most dramatic images are at 400x where the nucleus is clearly visible as a dark spot in the center of the cell.
