Enzymes work only on a single substrate, in most cases. true or false.

Which of the following statements is true? a. the main cause for speciation is an increase in gene flow. b. organisms that reproduce asexually are not considered part of a species. c. on a tree of life diagram, speciation is shown by the merging of two different lineages. d.the size of the geographic area inhabited by a population can cause speciation.

Development of new communities in disturbed environments, such as a burned or a clear cut forest, is called

How do living things obtain phosphorus