ine that you are a scientist studying species interactions in Kruger National Park, South Africa. Today, you are observing a pride of lions in the southeast quadrant of the park. Two lionesses brought down a large adult wildebeest. The adult females fed for approximately 20 minutes. Their cubs appeared interested in feeding but were largely kept away from the kill by the adult lions. A clan of hyenas drove the lions from the carcasses and fed for approximately 30 minutes. Two male lions drove the hyenas from the carcass, killing a female hyena. The male lions ate most of the kill; vultures fed on remains. 3. Selection of Traits • Do you think natural selection has shaped traits in these species that makes them better competitors? • If so, what types of traits might be involved? Explain your reasoning.

Adult Lake Trout and Chinook salmon live in deep, open water and eat small prey fish, but they have very different reproductive strategies. Lake Trout live up to 10 years and spawn (breed) every year near the lake shore. Most Lake Trout that live to adulthood eventually die in the open water and their carcass settles to the lake bottom. Salmon live 3-4 years and only spawn once. When they spawn, they swim up river in the Fall (sometimes all the way to MSU, via the Red Cedar River), where they build nests in gravelly river beds, lay their eggs in the nests and the males fertilize the eggs. Then, both the males and the females die. Q3. In 1-2 sentences, explain how the life history trade-offs of Chinook salmon and Lake Trout are different. How do such different strategies still increase fitness of the individuals?

hunter fisher gatherers:  Explain the methods of food production by these peoples/societies

Wildebeest are species of antelope found in southern Africa. The wildebeest herd in Serengeti National Park, Tanzania, is the largest herbivore herd on Earth. Scientists began monitoring the sizes of the Serengeti's large mammal populations in the 1960s. Over the next few decades, they noticed something unusual: the wildebeest population was increasing at a rate much faster than before. The scientists determined that this increase was due to several factors. One factor was a vaccination program that eradicated rinderpest, a viral disease that kills wildebeest. Based on the figure, what kind of population growth model would you use to represent wildebeest (circles) populations? wildebeest zebra 1960 1970 1980 1990 2000 year Figure 1. Wildebeest and zebra populations in the Serengeti from the 1950s to 2010. vaccination campaign 00000L 000000 000009 000007 population