Question 1

BIRD MIGRATION

Question 1/2

Refer to “Bird Migration” on the right. Click on a choice to answer the question.

Most migratory birds gather in one area and then migrate in large groups rather than individually. This behavior is a result of evolution. Which of the following is the best scientific explanation for the evolution of this behavior in most migratory birds?

Accepted Answer

Birds that migrated individually or in small groups were less likely to survive and have offspring.

Answer

Flying in large groups allowed other bird species to join the migration.

Answer

Birds that migrated individually or in small groups were more likely to find adequate food.

Answer

Flying in large groups allowed each bird to have a better chance of finding a nesting site.

Question 2

BIRD MIGRATION

Question 2/2

Refer to “Golden Plovers” onthe right. Click on one or more boxes to answer the question.

Remember to select one or more boxes.

BIRD MIGRATION

Golden Plovers

Golden plovers are migratory birds that breed in northern Europe. In autumn, the birds travel to where it is warmer and where more food is available. In spring the birds travel back to their breeding grounds.

The maps below are based on more than ten years of research on the migration of the golden plover. Map 1 shows the southward migratory routes of the golden plover during autumn, and map 2 shows the northward migratory routes during spring. Areas coloured grey are land, and areas coloured white are water. The thickness of the arrows indicates the size of the migrating groups of birds.

Migratory Routes of the Golden Plover.

Accepted Answer

The maps show that northward migratory routes of some golden plovers are different from southward migratory routes.

Answer

The maps show that migratory golden plovers spend their winter in areas that are south and southwest of their breeding or nesting grounds.

Answer

The maps show that the migratory routes of the golden plover have shifted away from coastal areas in the past ten years.

Answer

The maps show a decrease in the number of golden plovers migrating southward in the past ten years

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