Monarchs on the Move

Which sentence from the selection best supports the controlling idea that monarchs depend on human help?

• He wanted to create a way station for monarch butterflies. (paragraph 1)

• Every fall, millions of monarchs fly up to 4,800 kilometers (3,000 miles) from Canada and the United States to Mexico. (paragraph 3)

• The older butterflies die, and their offspring continue north. (paragraph 6)

• By planting butterfly gardens, they’re restoring the habitat monarchs need to survive. (paragraph 15)

What can the reader conclude based on information in both paragraphs 2 and 8?

• Milkweed that the monarchs depend on is a threat to farmers’ crops.

• Monarchs are beginning to rely on food sources other than milkweed.

• Migrating monarchs are often unable to find the milkweed they need.

• Milkweed is more available in the United States than it is in Mexico.

What key idea is supported by the details in paragraphs 12 and 13?

• People enjoy participating in efforts to track the monarchs.

• Advanced technology is required to track migration paths of monarchs.

• Monarch Watch uses photography as a main method of counting monarchs.

• Young monarch watchers are often trained by older researchers.

In paragraph 9, the words “Luckily” and “important allies” contribute to the author’s voice by showing

• doubt that monarchs are truly in danger of extinction

• frustration that monarchs sometimes lack the resources they need

• hope that people will do what is needed to save monarchs

• wonder about whether the attempts to save monarchs will be unsuccessful

How does the selection’s problem-solution organizational structure most contribute to the author’s purpose?

• By emphasizing how restoring monarch habitats can help bring back the monarch population

• By detailing concerns that young people have when trying to raise money to build gardens for monarchs

• By explaining the difficulties citizen scientists encounter when trying to locate monarchs

• By showing reasons why researchers are unable to gather enough data about the health of the monarch population