8. Which of the following are functions of external regulators of the cell cycle? Select two answers.
a. regulate checkpoints
b. make sure chromosomes have replicated
c. speed up or slow down the cell cycle
d. stop the cell cycle

The science for classifying and naming organisms is known as

Zoo geographic regions are characterized by the presence of specific groups of animals these regions are determined by the taxonomic or phylogenetic relationships of animals. the map shows the zoogeographic regions proposed by the naturalist alfred russel wallace in 1876. the similarities of organisms in which two areas numbered above provide the best evidence for common ancestry between the organisms in both locations ?

Did the vinegar diffuse all the way to the center of any of the cubes? if so, which ones? what does this tell you about surface area-to-volume ratio and the diffusion rate?