David Gallo: Deep ocean mysteries and wonders 1. At the time this video was filmed (2007), what was Gallo’s estimate of the percentage of earth’s oceans that had been investigated? How might this impact not only how we view the oceans, tides, and the entire marine ecosystem, but also the world and climate in general?

2.Just as the unit describes many amazing ecosystem creatures, Gallo also shares some incredible species that were observed at the bottom of the ocean. Briefly describe several of the creatures or discoveries discussed and what makes them so interesting.

Ry was studying two populations of the same species of lizards. one population lived on an island and the other lived on the mainland. both populations were affected by a hurricane that hit the island and the mainland with equal force. a year later, henry was testing the gene frequency and saw a decrease in genetic variation in the island species, but not in the mainland species. which best describes a conclusion he might have reached? gene flow greatly affects small populations, but large populations can recover. genetic drift greatly affects small populations, but large populations can recover. gene flow greatly affects large populations, but small populations can recover. genetic drift greatly affects large populations, but small populations can recover.

Match the examples to the correct level of organization. 1. system level roses, snakes, puppies 2. organism level roots, stamens, leaves 3. tissue level bone, cartilage, blood 4. organ level heart, veins, arteries

Match the types of competition to their descriptions