Which statement is true about DNA, traits, and chromosomes. A. Chromosomes contain many DNA that control traits and is made of genes.

B. DNA is made of genes, along which are many chromosome molecules that control traits.

C. Genes control traits and are located on the DNA which is made of the chemical called chromosomes.

D. Chromosomes contain many genes that control traits and are made of DNA.

Which of the following observation darwin shape his concept of descent with modification? a) species diversity declines farther from the equator. b) fewer species live on islands than on the nearest continents. c) birds live on islands located farther from the mainland than the bird's maximum nonstop flight distance. d) south american temperate plants are more similar to the tropical plants of south america than to the temperate plants of europe. e) earthquakes reshape life by causing mass extinctions.