What happens is when we feel the need to grow or repopulate some area then we usally take down trees and destroy land to build metal structures and suburbans an stuff
Very... Reproduction at both the molecular level to help maintain and repair itself through production of cells is important for self-preservation. Additionally reproduction allows survival of genetic material to offspring.
The answer is A, storing urine until it is eliminated.
The bladder stores urine, allowing urination to be infrequent and controlled. The bladder is lined by layers of muscle tissue that stretch to hold urine. The normal capacity of the bladder is 400-600 mL. During urination, the bladder muscles squeeze, and two sphincters (valves) open to allow urine to flow out.
<span>It answers D. Mitochondrial DNA stay almost identical over species and only varies ever so slightly. By comparing mitochondrial DNA over species you are able to see how closely related they are and how long it might have taken for the species to evolve.
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