Earth's geochemical cycles remove and add materials, such as water and rock. the three main, interconnected geochemical cycles of earth are

In this activity, you will use your knowledge to create a project that illustrates your understanding of the seven defense mechanisms. you choose the type of project: write a short story, poem, play or create a podcast or video using all seven of the defense mechanisms discussed. you may either have seven different characters, each with a particular defense mechanism, or have one or two characters displaying a variety of defense mechanisms. the key is to demonstrate your understanding of the characteristics of each defense mechanism.

Apopulation is a group of individuals of a single species existing together in an area. a population’s range, the area it occupies, changes over time. populations, in turn, may form a network, or metapopulation, connected by individuals that move from one group to another. within a population, the distribution of individuals can be random, uniform, or clumped, and the distribution is determined in part by the availability of resources. how might the geographic range of a species change if populations could not exchange individuals with each other? how would your answer depend on what type of metapopulation existed?

Gettysburg address question. lincoln uses the images of birth and rebirth in this address. why?