An analysis of DNA and RNA sequences can be used to classify organisms. A dendrogram,
such as the one shown below, is based on molecular data. It can be used to represent
evolutionary relationships within a group of organisms that are hypothesized to have
descended from a common ancestor.
-Brown bear
Sun bear
Spectacled bear
Glant panda
Lesser panda
Raccoon
- Dog
100
0
80 60 40 20
Millions of Years Ago
Which statement is best supported by the information in this dendrogram?
Lesser pandas are more genetically similar to giant pandas than they are to raccoons.
Brown bears are more genetically similar to giant pandas than they are to sun bears
The bear species are all more genetically similar to dogs than they are to giant pandas
Lesser pandas are more genetically similar to raccoons than they are to giant pandas,

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."    

this age may represent the age of the earth's accretion, of core formation, or of the material from which the earth formed. this dating is based on evidence from radiometric age-dating of meteorite material and is consistent with the radiometric ages of the oldest-known terrestrial and lunar samples.

c. heat from the poles back down towards the equator.