Answer:
A. The mass extinction of dinosaurs occurred at the Cretaceous/Paleogene boundary.
Explanation:
The most known extinction is the associated with the Dinosaurs, which happened at the Cretaceous/Palogene boundary (66 million years ago), although there is still a huge discussion on the causes of such extinction (comet/asteroid, changes in sea level, volcano activity).
Such event meant the dissappearing of two-thirds of the living species on Earth.
Answer:
I'm sure it Bb
Explanation:
because heterozygous means to be having two different alleles.
Answer:
It basically means that it adds all the numbers in an range in cells
Explanation:
Answer:
Hello Queen Messy here!
Many people are employed as farmers. A farmer can earn up to ten times more growing opium poppies for the drugs trade than growing wheat for food supplies. Afghanistan is politically unstable and the Taliban and ISIS operate in this area. This makes law enforcement difficult. Most opium farms are grown in Taliban controlled areas. Farmers may not be aware of the severity of the problem and are only trying to support their families with a better quality of life, as farming opium pays better than other jobs.
Explanation:
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Guys please don't answer this!!
Let Sana do it!!
Plants generate nitrogen in their roots
