Darwin suggested looking at a species’ close relatives to learn what its ancestors may have been like. explain how his suggestion anticipates recent methods, such as phylogenetic bracketing and the use of outgroups in cladistic analysis

(! ) what’s fracking and what does it have to do with carbon, carbon dioxide, or fossil fuels?

Which of the following statements is true? a. there are more chromosomes in an organism than there are genes. b. there are more genes in an organism that there are chemical bases. c. dna is made of sugar, phosphate, and carbon. d. genes are found in specific locations on a chromosome.

Are the layers of rock above and below the coal older or younger?