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Two women have benign pituitary tumors. Andrea has lost weight and complains of being hot all the time; she presents as thin and nervous, with tachycardia and exophthalmos. Bethany has gained weight in her abdomen and presents with a round face and thin arms and legs with stretch marks; she […]

1. According to current theories about the origin of life, which oneof the following must have preceded all the others?      eukaryotic organisms.oxygen in theatmosphere.photosynthesis.plants. 2. If the first organisms on Earth were heterotrophs they wouldhave eatenautotrophs.required organicmolecules in their environment.carried onphotosynthesis.used RNA as their geneticmaterial. 3. Algae are in the […]

For this assignment, visit your local grocery store to observe and record behaviors in the various aisles. Your visit should be long enough to observe several behaviors and situations. Read the assignment thoroughly before your observational visit in order to watch for specific behaviors. Write a four to five (4-5) […]

Multipal choice problems- 1. Which of the following includes all the others? A) atomB) cellC) organismD) population 2. In science, a hypothesis must be A) testableB) derived from a theoryC) a known factD) able to be proven absolutely true 3. A chlorine atom has 17 protons, 18 neutrons, and 17 […]