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Bezzdna [24]
4 years ago
7

A(n) _____ scan depicts brain activity by detecting where radioactive forms of glucose go while the brain performs a given task.

Biology
1 answer:
mash [69]4 years ago
6 0
Positron emission tomography (PET) is a test that uses a special type of camera and a tracer (radioactive chemical) to look at organs in the body. The tracer usually is a special form of a substance (such as glucose) that collects in cells that are using a lot of energy, such as cancer cells.
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Gre4nikov [31]

Answer:

Second Question:

If a doctor prescribes antibiotics, its because the you have developed a bacterial infetcion on top of your flu or HIV for example.

Explanation:

4 0
3 years ago
1. The plant life that is characteristic of a biome depends upon:
eimsori [14]

Answer:

D. all of the above​

Explanation:

Biome refers to a large and relatively distinct terrestrial region having similar climatic conditions regardless of where it occurs on Earth. The characteristic climatic conditions (temperature and precipitation being the most important ones) and soil type of each biome type determine the type of plant species found there. Therefore, each biome is characterized by specific flora.  

For example, a desert biome is a temperate or tropical biome characterized by a lack of precipitation, seasonal variations in temperature and poor soil type with low organic matter that limits plant growth. Desert biomes have only the plant species that can survive these harsh conditions.  

5 0
3 years ago
explain some of the interactions between air, land, water, and life that transfer energy in and around the globe and contribute
Sauron [17]

Answer:

              Air,water,land,these are the A-biotic factors of the environment and are associated with life in many ways and life is totally defendant on these A-biotic factors of the life

Explanation:

                     Life is basically dependent on two components the biotic (living things) and A-biotic (non living) components of life.Living component are inked to each other with food chain and the energy  is transferred between the food chains and the energy is made by the producer with the help of a biotic factors associated with the life. By using A-boitic component the producers the primary component of the food chain make the food and is consumed by the consumers and then the same way the energy is transferred  from on level to the next level and energy is consumed up to 10 percent  in each level of the food chain.

3 0
4 years ago
Adult male humans generally have deeper voices than do adult female humans, which is the direct result of higher levels of testo
Romashka-Z-Leto [24]

Answer:

disruptive selection

Explanation:

Disruptive selection is the natural selection that favors two extreme phenotypes but does not favor the intermediate phenotype. Here, the survival and reproductive success of two extreme phenotypes are higher than that of the intermediate phenotype due to their higher fitness value in the prevailing conditions. The presence of deeper voices in males and less deep voices in females due to high and low levels of testosterone respectively represents the disruptive selection as the phenotype present at two extreme ends are favored.

3 0
4 years ago
Read 2 more answers
Why do you think mining on land would be less costly than mining in the ocean?
SOVA2 [1]

Explanation:

Because dense minerals are heavier and drop to the stream bottom, lighter minerals are carried along in the current of the stream. Why do you think that mining on land is less costly than mining in the deep ocean is? It is easier to get to land than the ocean and you need special equipment to go under water.

8 0
3 years ago
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