Organs are the structures composed of specialized tissues designed to perform specific functions in plants and animals.
Organs are the structures made up of similar types of tissues, These work in coordination to perform a similar type of function. The heart, kidney, lungs, stomach are all examples of organs. These are differentiated structures that perform a specific task.
Tissues are the mass of cells that are of similar type. The differentiated cells combine together to form a tissue. These cells also work in coordination so that the tissue can perform a certain type of function. Tissues can be plant tissue or animal tissue depending upon whether they have plant cell or animal cell.
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The correct answers are carbon dating. Carbon or radiocarbon dating is a method that uses a mathematical equation and the half-life of decay to determine the exact date of a fossil. Carbon dating is the method that has the determination of the age of an organic matter.
An autotroph is an organism that can create nutritional organic substances from inorganic substances
The generation of electricity through nuclear energy reduces the amount of energy generated from fossil fuels. Less use of fossil fuels means lowering greenhouse gas emissions and others.
The correct answer is polypeptide. There is a hypothesis about this question and it states that the actual function of genes in all species is to control the synthesis of polypeptides who then affect a metabolic pathway. This hypothesis was established in 1941 by the scientists George Beadle and Edward Tatum, after studying mutations of Neurospora Crassa. The research was continued by Norman Horowitz and it is considered to be the base of molecular genetics.