Diversity of Organisms Small Report

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In Chapter 16, 17 and 18 we focus more on the structure and function of organisms, as well as the emphasize the immune and reproductive systems. Respond to the following two prompts relating to these three chapters: • • In section 16.3 we learn about the vertebrate circulatory and respiratory systems, both of which are quite different from the respiratory and circulatory methods found in invertebrates. Use the information from this section to compare to information from a previous chapter, or other online resources to answer the following two questions: o How does a closed circulatory system function differently from an open circulatory system? And can you identify any benefits to an open circulatory system? o Identify two differences (either structures or functions) between gills and lungs in terms of how oxygen is captured from the environment. In section 18.3 we learn more about human reproduction, including the concept of gametogenesis or the production of egg and sperm cells in humans. Create a table or write a brief summary (whatever makes sense to you) that compares spermatogenesis and oogenesis. Include a bit of information about the hormonal control of reproduction in your comparison.
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RUNNING HEAD: DIVERSITY OF ORGANISMS

Diversity of Organisms
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DIVERSITY OF ORGANISMS

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Diversity of organisms

The closed and open circulatory system
The closed circulatory system functions in such a way that the blood in closed in different
vessels of different wall thickness and sizes. This is the type of system where the heart propels
the blood and the body cavities aren’t usually filled. On the other hand, the open circulatory
system causes the blood to diffuse back between cells into the circulatory system after being
pumped into a hemocoel. It is pumped into body cavities. The closed circulatory system is
standard for vertebrates as well as some few invertebrates, while open is common to arthropods
and molluscs.
The benefits of an open circulatory system are that it doe...


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