The individual cells making up a tissue differ from single-celled organisms such as paramecium in that only the latter:
a. reproduce by mitosis.
b. have subcellular organelles.
c. are capable of extended independent life.
d. can metabolize nutrient molecules.

C.are capable of extended independent life.

Explanation:

Hello! The Paramecium organisms are characterized by having an oval shape, found it in stagnant freshwater with abundant organic matter, such as puddles and ponds. They are undifferentiated unicellular organisms. The ordinary size of all species is just 0.5 millimeters.

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answer; ( action training environment;

trade regulation is a field of law, often bracketed with antitrust (as in the phrase “antitrust and trade regulation law”), including government regulation of unfair methods of competition and unfair or deceptive business acts or practices. antitrust law is often considered a subset of trade regulation law. franchise and distribution law, consumer protection law, and advertising law are sometimes considered parts of trade regulation law.

in general the theory of economics says that the more open to trade a country is the better   the result for the same country and the whole economies.

in real life countries impose taxes, quotas, etc which is not so good for the economies.

this kind of commercial war between the usa and china is slowing down the growth of the whole world so we can say that it is a draw back of trade regulations. and the free trade agreements are benefits of trade regulations.