1. 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?
A. Captive-bred whooping cranes have been introduced to natural environments.
B. In the 1800s, North America was home to over 1,000 whooping cranes.
C. Although the hunting of whooping cranes was criminalized, their numbers continued to decline
D. In the early 1900s, the U.S. and Canada jointly signed a migratory bird treaty.
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The statement that best supports the student's claim that animals have been positively impacted by human intervention is A. Captive-bred whooping cranes have been introduced to natural environments. This suggests that humans have taken steps to increase the population of whooping cranes by breeding them in captivity and releasing them into the wild.
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The statement that best supports the student's claim that animals have been positively impacted by human intervention is A. Captive-bred whooping cranes have been introduced to natural environments. This statement suggests that efforts have been made to breed whooping cranes in captivity and then release them into their natural environments, which could potentially increase their population and aid in their conservation.
To determine which statement best supports the student's claim that animals have been positively impacted by human intervention, let's examine each option:
A. Captive-bred whooping cranes have been introduced to natural environments.
This statement suggests that humans have taken steps to ensure the survival and growth of whooping crane populations by breeding them in captivity and reintroducing them into their natural habitat. This could be seen as a positive impact on the population.
B. In the 1800s, North America was home to over 1,000 whooping cranes.
This statement provides historical information about the population of whooping cranes in the past. While it doesn't directly indicate the positive impact of human intervention, it shows that whooping cranes existed in higher numbers before human activities potentially caused declines in their populations.
C. Although the hunting of whooping cranes was criminalized, their numbers continued to decline.
This statement suggests that despite implementing measures to protect whooping cranes by criminalizing hunting, their populations have still been in decline. It does not support the claim of a positive impact from human intervention.
D. In the early 1900s, the U.S. and Canada jointly signed a migratory bird treaty.
This statement highlights an agreement between the U.S. and Canada to protect migratory birds, including whooping cranes. This treaty suggests a commitment to the conservation of these species, which could indicate a positive impact by humans.
Based on the provided options, statement A stands out as the one that best supports the claim that animals have been positively impacted by human intervention. By breeding captive whooping cranes and reintroducing them to natural environments, humans are taking an active role in promoting the species' survival and growth.