What is the mass number of the ion consists of 12 electrons, 14 protons, and 15 neutrons? [P+ n] e. 21
g. 23
f. 29
h. 33

Compare and contrast the adaptations of free-living flatworms and parasitic flatworms

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 strategy is an example of how companies may upgrade themselves to meet changing customer preferences? a. doing door-to-door sellingb. using billboards to advertise the productsc. making online shopping services availabled. giving discounts on products