When Studying an Ancient Ecosystem's Organisms,what Was the Advantage of Looking

question 27

Multiple Choice

When studying an ancient ecosystem's organisms,what was the advantage of looking for DNA samples in permafrost?

• A) The freezing temperature preserves the DNA.
• B) Areas with permafrost are older than other parts of the world, allowing scientists to collect samples back 1.5 to 2 million years.
• C) The enzymes that make DNA are still active in the cells.
• D) It is easier to take solid core samples.
• E) Most plants and animals evolved in Siberia.

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Constitutional Democracy

A system of government where the power is vested in the people and exercised according to a constitution, which outlines the rights and responsibilities of citizens and the governing entities.

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A body of laws and regulations designed to protect the environment by governing human activities that may harm ecological balance, including air and water pollution, waste management, and conservation efforts.

Species at Risk Act

Canadian legislation aimed at the protection and recovery of endangered or threatened species and their habitats.