Look the diagram and choose the correct A. Active transport

B. Passive transport

Resperation is a way to release carbon back into the atmosphere

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.

Using the gas pedal analogy explain the impact on the cell cycle of one mutated tumor suppressor gene allele versus two mutated tumor suppressor alleles