Answer:
SPECT Single-photon emission computed tomography
Explanation:
SPECT is a technique that is used for tomography of the brain to know how the tissue and blood working in the brain. It shows the activity in the brain. This technique helps in diagnoses brain stroke, head injury, ischemia attack, blockage and mental illness like schizophrenia, Alzheimer's, etc.
It is an unclear imaging technique that merges with computed tomography and finds out the problem through a combination of SPECT. Before doing SPECT, an injection is injected into the blood stream. This technique is used to know the blood is flowing in arteries and veins.
The federalism divides and balances power between state and national government.
“Laboratories of federalism/democracy” relates to the advantage of federalism: federalism allows and encourages innovation and experminetation.
The federalism focuses on creating culture of innovation for a broad range of policy areas—particularly for education.
Racism and culture some didn’t agree with..
A Spanish treatment of the Native Americans was poor. Spanish explorers considered the natives inferior. Consequently, they forcibly converted natives to Christianity, confined them to slavery and murdered them.
Why? The Spanish, for the most part, treated the Native Americans poorly. The Spanish were interested in the riches of the Americas, and they had no problem in forcing the Native Americans into slavery so they could mine the gold and the silver for Spain
