The largest mass extinction was in the a. precambrian time. c. paleozoic era. b. cenozoic era. d. mesozoic era.

Which statements are true of a scientific theory but not a hypothesis

Compare and contrast nutrient limitation in soil vs. nutrient limitation in aquatic ecosystems

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.