The answer is d is environmental <span />
Answer:
because when your drunk you do stuff you always want to do and you are more likely to get diseases when you have sex and when your drunk you will do the stuff you like to do like have sex.
It is C, you are extremely nervous and start sweating while waiting in line for your name to be called to accept your high school diploma.
Answer:
true
Explanation:
chromosomes are thread-like structures in which DNA is tightly packed within the nucleus. the DNA is usually tightly coiled around a protein that supports the structure which are called DNA and histone. when the cell is not dividing, the chromosome is not visible under the microscope, but during cell division the DNA that makes up the chromosome becomes tightly packed, then the chromosome becomes visible under the microscope. therefore chromosomes are composed of DNA.