What is an invasive species?

a. a nonnative species that often outcompetes native species, leading to their extinction
b. a native species that evolves a new trait and occupies more ecological niches
c. a nonnative species that enriches the species diversity of a new ecosystem
d. a nonnative species that often outcompetes native species, leading to evolution
e. a nonnative species that eventually becomes extinct


ANSWER: a

Biology & Microbiology

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Based on the following classification scheme, which two organisms are most closely phylogenetically related? Why?

What will be an ideal response?

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The Greek word oikos means

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The availability of genomic data has allowed scientists to construct more accurate phylogenetic trees than those based

on fossil evidence alone. a. True b. False

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