Almost All Cacti Are Native to the Americas, but There

question 34

Multiple Choice

Almost all cacti are native to the Americas, but there is a small, relatively uncommon group of plants closely related to cacti native to tropical western Africa. How can we explain this given the information in this chapter?

• A) The plants might have floated across the Atlantic.
• B) This might have been caused by divergent evolution.
• C) The continents were once connected.
• D) All of the above are true.

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