All of the following were part of the Columbia Exchange except
a. cows and horses were introduced into the Western hemisphere.
b. potatoes and corn were introduced into Europe from the Americas.
c. potatoes and corn were introduced into the Americas from Europe.
d. smallpox arrived in the Americas from Europe.
e. gunpowder and guns were introduced into the Americas from Europe.
Question 2
Portuguese control of the spice trade was ended by
a. Muslim attacks from Delhi.
b. the circumnavigating voyage of Balboa.
c. the establishment of the British and Dutch East India Companies.
d. rival Hindu merchants from the Ganges plain.
e. a new outbreak of the Black Death.
Relationship between fruit radius and beak length in populations of native and introduced species of
There are multiple pathways for heat exchange between organisms and the environment.
The Periodic Table (Part 2)
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Same pair of homologs, but with an exchange occurring between two nonsister chromatids