Which of the following is NOT a result of affluence that is harmful to the environment? a. higher levels of per capita resource consumption b. increased access to products from other parts of the world c. expanded per capita ecological footprints d. lower quality of life e. lower birth rates

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.

Which direction does the energy flow in this energy pyramid ?

Describe your dna model. which part do the straws represent? the pushpins? the paper clips and the black dots you made with the marker?