in the mid-1800’s one man began a genetic study of pea plant that is still the foundation for genetics today. he worked with a quick growing, easy to obtain plant that allowed him to experiment with the inheritance of a single trait, like flower color. his experiments lead to such genetic foundations as the law of dominance and the principle of segregation.

this early geneticist is
a) darwin.
b) mendel.
c) morgan.
d) watson.

they deliver oxygen to the blood

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."    

your spelling is a little off : ]