Write a paragraph for tissue engineering

Tissue engineering, labeled as the 21st century's number one hottest work by Time.com, holds tremendous promise for medicine and chronic disease and condition care. Familiar issues such as the body's rejection of foreign tissue, the extreme shortage of organ donors, and the inefficiency of artificial devices can be solved with tissue engineering. This cutting-edge biotechnology, however, has already created intense controversy over the ethics and morality of spare human parts.

this statement is true.

forests are public goods, available for everybody. when usage of such a good becomes interesting for consumers and its usage increases, there can be a risk of overexploitation. it is a non rival good therefore, if one person consumes the good it does not reduce the availability for subsequent consumers.

these caracteristics require the establishment of measures in order to prevent the destruction of a commonly owned space, for example, to restrict the amount of people that have access to the same time.

answer; negative punishment;