Answer:
They protect the body from infectious agents.
And
They signal the immune system to destroy pathogens.
Explanation:
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Umbilical cord and haploid
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Answer:
Infertile. That is the only one I can think of sry
Explanation:
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Answer:
The correct answer is option d. "Many species that moved into North America from South America outcompeted the endemic taxa and still exist today".
Explanation:
The Great American Biotic Interchange (GABI) was an historical period at which numerous species from South America migrated to North America, and numerous species from North America migrated to South America because of the formation of the Isthmus of Panama. During this event, many species that moved into North America from South America outcompeted the endemic taxa and still exist today. The species that successfully immigrated to South America and exist today were mostly small mammals, such as armadillos and opossums.
