#Question id: 1370
#Unit 4. Cell Communication and Cell Signaling
H. V. Wilson worked with sponges to gain some insight into exactly what was responsible for holding adjacent cells together. He exposed two species of differently pigmented sponges to a chemical that disrupted intercellular junctions, and the cells of the sponges dissociated. Wilson then mixed the cells of the two species and removed the chemical that caused the cells to dissociate. Wilson found that the sponges reassembled into two separate species. The cells from one species did not interact or form associations with the cells of the other species.
How do you explain the results of Wilson's experiments?
#Question id: 5792
#Unit 8. Inheritance Biology
A frameshift mutation
#Question id: 1456
#Unit 4. Cell Communication and Cell Signaling
Besides the ability of some cancer cells to over proliferate, which of the following situations might logically result in a tumor?
#Question id: 9609
#Unit 9. Diversity of Life Forms
Dozens of potato varieties exist, differing from each other in potato-tuber size, skin color, flesh color, and shape. One might construct a classification of potatoes based on these morphological traits. Which of these criticisms of such a classification scheme is most likely to come from an adherent of the phylocode method of classification?
#Question id: 27929
#Unit 11. Evolution and Behavior