Answer:
Researchers found that chronic exposure to a stress hormone causes modifications to DNA in the brains of mice, prompting changes in gene expression. The new finding provides clues into how chronic stress might affect human behavior.
The most likely thing that happened with this poor young woman who broke her leg was that she broke hte bone at a very young age and that it fully healed. C
This is so because collagen is a substance that gets secreted at the point of fracture which helps strengthen the bone. Having a higher amount of collagen at the site of a broken bone means that the bone probably healed properly and there was a remainder of collagen to be found.
Answer:B.
It was used to prove that smoking causes health problems.
Explanation:
Depending on what happens with the environment if its a decline in resources it could completely fall and tear itself apart it just depends really on what you think of just make up a situation in your head and talk about that
Answer:
To facilitate DNA replication
Explanation:
The chromosomes must condense as to allow for DNA to replicate within the nucleus
