Answer:
3. by studying plants and animals
Explanation:
Bringing harmful plants causes harm to the other species living there.
Destroying a lot of trees takes away a lot of homes from animals.
If you're just studying them no harm is being done.
Using pesticides can cause negative effects to the plants and animals who eat them.
Just from the position of cartridge cases and bullets, it is possible to deduce what kind of firearm was used in the crime (for instance: whether it was a small pistol or a larger weapon such as a rifle), the shooter's possible position (the place where the firearm was being fired during the crime), and the shots' trajectory (if the bullets have penetrated any surface or object before hitting its targets or stopping).
Answer: Two health-related fields that are separate but overlap somewhat are Health Psychology, which focuses on behavioral, social, emotional, motivational, and cognitive factors, and Behavioral medicine, which centers on behavioral, social, and biomedical factors.
Explanation:
Health Psychology is a field of psychology dedicated to the role of psychology in creating and sustaining well being. It uses knowledge of the field of psychology to determine the underlying non-physical reasons of an illness.
Behavioral medicine is a field of medicine that overlaps with health psychology, and has an emphasis on combining behavioral and biomedical sciences to diagnose and treat illnesses.
Answer:
<em>Because immigration is a natural process and a policy of open immigration avoid many of the problems, costs and negatives effects of illegal immigration.</em>
Explanation:
In a country with open immigration people will not use of fraud to get inside the country or to get work, that way the state doesn’t need to spend so much money in securing borders or investigating frauds and illegal workers.
With open immigration the immigrants are able to participate in the economy and pay taxes as other citizens, these increase the states income and the opportunity for investors, if they are illegal they can’t open a legal business, as happened in past with the Chinese’s for many years in US. Or they won’t need social welfare because they can have an income, that way they don’t have to be under the state’s support or be in custody in prisons.
They can also respond to law and have some responsibilities as other citizens without having all the native’s rights, this creates a more equal situation than when they are illegally immigrating.
