Half life is the time taken by a radioactive isotope to decay by half of its original mass. In this case the half life of carbon-14 is 5500 years.
The original mass is 30 g and the new mass is 3.75 g.
New mass = Original mass × (1/2)^n, where n is the number of half lives;
3.75 = 30 × (1/2)^n
1/8 = (1/2)^n
n = 3
Thus, the time taken will be; 3 × 5500 = 16500 years.
Answer:
A dolphin's flipper, a bird's wing, a cat's leg, and a human arm are considered homologous structures. ... Bats, whales, and many other animals have very similar homologous structures, demonstrating that these creatures all had a common ancestor
Just don't worry about the human part
hope this helps
Answer:
The structural and fundamental unit of life is called the cell.
50% chance heterozygous
0% change homozygous recessive
