An orgainism is endangered when it is close to extinction...this happens when an organism is hunted down for its meat or other properties...
Restriction enzyme cuts samples of DNA at restriction site; produces different lengths of DNA segments
Answer:
Because the child was vaccinated against this disease, the germs are not able to travel from one person to the other, and the family in this case, is less likely to get the disease. Even his siblings, that didn't get the vaccine, will get some protection from getting sick. This is known as community immunity.
Explanation:
The new population that experienced natural selection is now better fit or more adapted to the environment than the old population
A) Sodium..................................................
