Some species require a large and diverse range. Although it may not significantly decrease the overall size of the range, how might fragmenting the range with a freeway or neighborhood lead to the extinction of the entire population, even if
sufficient food is available in either region to sustain two smaller populations? Suggest a compromise that would allow the population to survive and allow for the road project or neighborhood.
The species may not be able to travel between breeding grounds and feeding grounds or the individuals may get killed trying to go from one region to the other. A sufficiently large corridor connecting the two ranges could be left undisturbed so the animals can freely move from one region to the other.
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Which of the following neural cells provide metabolic and physical support to other neural cells?
a. motor neurons b. neuroglial cells c. interneurons d. sensory neurons
_____ is the phase of the cell cycle in which DNA replicates
1.G1 2.S phase 3.G2 4.Mitosis 5.Interphase
Describe the role of the two antagonistic hormones involved in the feedback loop that maintains the level of glucose in the blood. Which organs are involved, and what type of feedback is this?
What will be an ideal response?
Studies by Emil von Behring and Shibasaburo Kitasato demonstrated that inactivated toxins can induce the synthesis of antitoxins in the blood of rabbits. These antitoxins (antibodies) are the basis of ________.
A. phagocyte-mediated immunity B. antibiotic immunity C. cell-mediated immunity D. humoral immunity