1/2 of a radioactive substance will remain after 3 half lives.
Solution:
The ecosystem boundary of a drainage basin can be defined by the mountains, hills and valleys that determine where the water flows.
Since the Ecosystem is define as all the organisms and their physical and chemical environment within a specific area where energy and matter influence the distribution and abundance of organisms present.
Thus the right answer is mountains, hills and valleys that determine where the water flows.
Explanation:
they are not transformed , and they die soon after they are still transfo4med because the nearby cells are transformed they change to a new cell with new characteristics. THEY ARE NOT TRANSFORMED AND THEIR CHARACTERISTICS ARE NIT ALTERED
The arctic fox is an incredibly hardy animal that can survive frigid Arctic temperatures as low as –58°F in the treeless lands where it makes its home. It has furry soles, short ears, and a short muzzle—all-important adaptations to the chilly clime. Arctic foxes live in burrows, and in a blizzard they may tunnel into the snow to create shelter.
