Explain the main roles of the kidneys and skin The kidney and skin works to protect our organs from the sun.
The kidneys and skin are necessary to remove waste products that the body produces.
The kidney and skin is used to keep our body warm.
The kidney and skin only work together to filter the liquid part of blood.

How is the national wildlife refuge system similar to the pacific region coastal program? a. both programs are concerned with providing habitats for wildlife b. both programs are primarily concerned with preserving fish species c. both programs have set aside 150 million acres of land d. both programs are under the u.s. fish and wildlife service

What do your cells need to live? a. carbon dioxide b. carbon c. air d. oxygen

Peat deposits are found in waterlogged places where dead plant material piles up. when peat is buried, it undergoes compaction. it is subjected to heat and pressure for a long time, and a lot of water is squeezed out during this process. nearly ten vertical feet of original peat material becomes one vertical foot of coal. which of these remains unchanged in the system during the conversion of peat to coal? a) area b) density c) mass d) volume