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Savatey [412]
3 years ago
13

A technique that uses measurement of radioactive isotopes to evaluate the activity of the brain is

Biology
2 answers:
Furkat [3]3 years ago
7 0
<span>The answer is nuclear imaging. A subject is asked to take in a radionuclide (radioactive isotopes) and as the radioactive material passes though the body, it continually emits radiation that is detectable by an instrument such as a gamma camera. Examples of nuclear imaging techniques are SPECT and PET.</span>




san4es73 [151]3 years ago
3 0

Answer:

Magnetic resonance

Explanation:

Images of the brain in action can be obtained by functional magnetic resonance imaging, a method of injecting into the glucose vein labeled with radioactive isotopes, and analyzing through resonance its distribution to different brain areas, while performing functions such as walking, laughing, looking. for figures that arouse compassion, anger, sexual attraction, solidarity. According to this reasoning, magnetic resonance imaging is a technique that allows brain activity to be assessed by measuring radioactive isotopes.

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How did humanity start?
svetoff [14.1K]




Human evolution

Human evolution is the lengthy process of change by which people originated from apelike ancestors. Scientific evidence shows that the physical and behavioral traits shared by all people originated from apelike ancestors and evolved over a period of approximately six million years.
One of the earliest defining human traits, bipedalism -- the ability to walk on two legs -- evolved over 4 million years ago. Other important human characteristics -- such as a large and complex brain, the ability to make and use tools, and the capacity for language -- developed more recently. Many advanced traits -- including complex symbolic expression, art, and elaborate cultural diversity -- emerged mainly during the past 100,000 years.
Humans are primates. Physical and genetic similarities show that the modern human species, Homo sapiens, has a very close relationship to another group of primate species, the apes. Humans and the great apes (large apes) of Africa -- chimpanzees (including bonobos, or so-called “pygmy chimpanzees”) and gorillas -- share a common ancestor that lived between 8 and 6 million years ago. Humans first evolved in Africa, and much of human evolution occurred on that continent. The fossils of early humans who lived between 6 and 2 million years ago come entirely from Africa.
Most scientists currently recognize some 15 to 20 different species of early humans. Scientists do not all agree, however, about how these species are related or which ones simply died out. Many early human species -- certainly the majority of them – left no living descendants. Scientists also debate over how to identify and classify particular species of early humans, and about what factors influenced the evolution and extinction of each species.
Early humans first migrated out of Africa into Asia probably between 2 million and 1.8 million years ago. They entered Europe somewhat later, between 1.5 million and 1 million years. Species of modern humans populated many parts of the world much later. For instance, people first came to Australia probably within the past 60,000 years and to the Americas within the past 30,000 years or so. The beginnings of agriculture and the rise of the first civilizations occurred within the past 12,000 years.
Hope this helps:)

3 0
3 years ago
Read 2 more answers
Binomial nomenclature is the term that describes linnaeus’s blank system for naming organisms using the blank name followed by t
antoniya [11.8K]
<span>Describes a system of naming something using two names, or words.
Binomial means "two" and nomenclature means "list of names"
OR 
</span><span>He developed systems for both naming species and organizing them into groups and his</span> system of binomial nomenclature made communication about certain species much easier
7 0
3 years ago
The bone from which a skeletal muscle begins is called its origin. <br> a.true <br> b.fals
Gre4nikov [31]
This is true. it is called origin.
6 0
3 years ago
Hello, please help, see attached photo :) thanks
Dmitry [639]

Answer:

a. Parents AA x Aa

b.

                     A               A

A                   AA             AA

a                   Aa              Aa

c. 50%

Explanation:

a. Parents AA x Aa

b.

                     A               A

A                   AA             AA

a                   Aa              Aa

c. 50%

5 0
2 years ago
When water molecues are being evaporated through the leaves, the water column is pulled upward due to adhesion of water molecule
fomenos

Explanation:

The answer is F...because h2o molecules are heavier than the atmosphere it surrounds. Therefore, gravity takes over. plse correct me if wrong.

because of gravity, h2o is directed down. That's how plants survive, Remember, ..what goes up, must go down...per " isaac newton."

6 0
3 years ago
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