What do you think? Read the two statements below and decide whether you agree or disagree with them. Place an A in the Before
column if you agree with the statement or a D if you disagree. After
you've read this lesson, reread the statements to see if you have
changed your mind.
Before
Statement
After
The cells in a human body are all the same type.
A human body has organ systems that carry out
specific functions.

Forgot the question hahaha

Radon-222 or rn-222 has a half-life of 3.82 days. to determine the fraction of an original sample of rn-222 that remains unchanged after 7.646 days, we calculate the amount of rn-222 remaining after 7.646 days and divide it with the original amount. using 1 gram as a basis and using half-life calculation methods, we can determine that  0.249 or 0.25  grams of rn-222 will remain, and thus the fraction remaining is 0.25 or 1/4.

Declaration of independence basically declares war with britain while bill of rights is document with the rights of the people written down.