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A researcher wants to measure the effectiveness of a 3-month high protein meal plan on the performance of 14 runners. The runners run two different lengths of 3 miles: one prior to starting the 3-month high protein meal plan and one after eating the high protein meal plan for 3 months. The difference in run times between the run prior to the diet and the run after the diet was recorded for all 14 runners.  The data obtained should be analyzed using which method?

Which two statements regarding feedback loops are correct?

When a dog’s brain detects the need to dissipate excess heat and the dog begins to pant, the brain acts as the ____, and the panting behavior acts as the ____.

Which statement regarding the fitness of coyotes compared to the fitness of shrews is scientifically accurate?

A colonial protist is the ancestor that led to the first animal lineages. These protists coordinated the tasks of the group, such as feeding versus protection, which led to specialized cell types, which is the basis of multicellular organisms. What term describes this phenomena?

Which phylum includes aquatic, sessile animals that lack symmetry, true tissues, or organs and are commonly shaped like columnar vases?

Which statement best explains the scientific reasoning to support the observation that a shrew needs more food to maintain a gram of body weight compared to a coyote?

Which of the following is a derived trait among vertebrates?

Using the image below, which statement(s) accurately describes the image? Select all that apply.

Which is the only living animal to retain all embryonic chordate features into adulthood?