A student is conducting research on the impact of humans on whooping crane populations in the North America. Which statement best supports the student’s claim that animals have been positively impacted by human intervention?(1 point)

Question

Responses

In the early 1900s, the U.S. and Canada jointly signed a migratory bird treaty.
In the early 1900s, the U.S. and Canada jointly signed a migratory bird treaty.

Although the hunting of whooping cranes was criminalized, their numbers continued to decline.
Although the hunting of whooping cranes was criminalized, their numbers continued to decline.

Captive-bred whooping cranes have been introduced to natural environments.
Captive-bred whooping cranes have been introduced to natural environments.

In the 1800s, North America was home to over 1,000 whooping cranes.

Answer 1

The statement that best supports the student's claim that animals have been positively impacted by human intervention is:

Captive-bred whooping cranes have been introduced to natural environments.

This statement highlights a specific human intervention—the breeding of whooping cranes in captivity and their subsequent introduction into their natural habitats—which directly indicates a positive impact on the population of whooping cranes.