D)Temperature,pressure,chemical makeup
Answer:
Tt = 50%
tt = 50%
tall = 50%
short = 50%
<em>I hope this helps you</em>
<em>:)</em>
The spear is 4620 years old.
N=N0e^-kt
N0 = initial amount of C-14 (at time t = 0)
N = amount of C-14 at time t
t = time, in years
k = 0.0001
N/N0 = e^-kt
we know N/N0 is 0.63
so we have:
0.63 = e^-kt
we can take the ln of both sides, leaving us with:
ln0.63 = -kt
t = ln0.63 / -(0.0001)
t = 4620 years
hope this helps with your thing!
-keynerd23
Answer: No, because evolution can also produce new traits on a species without changing it. Lizards in an area where the surface is slicker, may develop stickier feet in order to stay rooted to their surfaces easier. Some mice become immune to poison, and some bacteria and germs that are often vaccinated for become immune to those vaccinations and can get past those barriers.
Explanation: