1 Using evidence from the Sea Star Wasting Disease case study, explain how change in allele frequency over time (evolution) happens due to: (Pick one or two of the following to explain) 1) Species increasing in number 2) Mutation and sexual reproduction results in a variety of genes passed on and carried by individuals of a population 3) Organisms in a community compete for resources 4) Organisms who can survive, thrive and reproduce will increase in number.

Which coal field location is related to coal fields in the eastern united states and supports the theory of continental drift? eastern india southern africa western australia northern south america

Which of the following factors would not contribute to allopatric speciation? a) a population becomes geographically isolated from the parent population. b) the separated population is small, and genetic drift occurs. c) the isolated population is exposed to different selection pressures than the ancestral population. d) different mutations begin to distinguish the gene pools of the separated populations. e) gene flow between the two populations is extensive.

Arrange the symbols to form a dna molecule.