Select the word from the list that best fits the definition the first word in an organism’s scientific name. 1)bacteria. 2)classification. 3)domain. 4)genus. 5)protist. 6)species

The answer is genus

Explanation:

The scientific names are formed by two parts, the name of the genus and the name of the species, this nomenclature is known as binomial. The genus begins with a capital letter, the species name goes in lowercase. They do not carry diacritical signs, numbers, or dashes. They must contain more than one letter and are written in Latin or Greek.

4.) metal

"-the movement of carbon from the nonliving environment into living things and back to the environment

-carbon is the essential component of proteins, fats, and carbohydrates (which make up all organisms)

-carbon exists in air, water, and living organisms

-producers convert carbon dioxide in the atmosphere into carbohydrates during photosynthesis

-bacteria in the atmosphere cycles through the system in filtration units

-in cellular respiration, carbon is released back into the atmosphere as carbon dioxide

-some carbon is stored in limestone (forming one of the largest "carbon sinks" on earth)

-largest carbon reservoir on earth= limestone

-carbon stored in the bodies of organisms as fat, oils, or other molecules may be released into the soil or air when the organism dies

-this may form deposits of coal, oil, or natural gas (fossil fuels, which increased the atmospheric carbon dioxide)

-fossil fuels store carbon left over from bodies of organisms that died millions of years ago

-they are located in the surface of earth, deep within the earth and beneath the ocean floor."    

atp is used for energy.