A(n) _________ scan uses radioactive markers in the blood to monitor blood flow and metabolic activity via x-ray.

Answers

Answer 1

Answer:

Answer;

-PET scan

A PET scan uses radioactive markers in the blood to monitor blood flow and metabolic activity via x-ray

Explanation;

-A positron emission tomography (PET) scan is an imaging test that helps reveal how the tissues and organs are functioning. A PET scan uses a radioactive drug (tracer) to show this activity. This scan can sometimes detect disease before it shows up on other imaging tests.

-A PET scan is used to diagnose certain health conditions, to plan treatment, to find out how an existing condition is developing, and to see how effective a treatment is.

-In a PET scan, a machine detects radiation that is emitted by a radiotracer. A radiotracer consists of radioactive material that is tagged to a natural chemical, such as glucose.

Answer 2

Answer: That would be a pet scan.
:)

A) specialized cells<=YOUR ANSWER

B) tissues

C) organs

D) plant cells

In dna which nucleotide does adenine bond with

Answers

The answer is thymine.

The base unit of DNA is called a nucleotide. The nucleotide consists of a nucleobase (adenine - A, thymine - T, cytosine - C, and guanine -G), a monosaccharide deoxyribose, and a phosphate group. Two nucleotides of the different strands are joined by hydrogen bonds. According to the base pairing rules, adenine pairs with thymine (A-T), and cytosine pairs with guanine (C-G).

Forces of attraction between particles is the SMALLEST in gas
solid and liquid
solid

Answers

Answer:

gas

Explanation:

In gas there are weak attraction forces present between the particles.

Properties of gases:

Molecule of gases randomly move everywhere and occupy all available space.

Gases don't have definite volume and shape and take the shape and volume of container in which it present.

Their densities are very low as compared to the liquid and solids.

Gas molecules are at long distance from each other therefore by applying pressure gases can be compressed.

The very weak inter molecular forces are present between gas molecules.

Properties of Liquid:

Liquid have definite volume but don,t have definite shape.

Their densities are high as compared to the gases but low as compared to the solids.

In liquid, molecules are close to each other and have greater inter molecular forces as compared to the gas molecules.

Properties of solids:

Solids have definite volume and shape.

In solids molecules are tightly pack and very close to each other.

Their melting and boiling point are every high.

The densities of solids are also very high as compared to the liquid and gas.

There are very strong inter molecular forces are present between solid molecules.

Which statement best describes a situation that would reduce the stability of. A forest ecosystem

Answers

One such situation would be that
"A fierce predator is removed from the ecosystem."

A removal of such a predator would mean that the population of the animals it is eating would increase, which would in turn decrease the population of the animals or plants that those animals are eating, which would generally decrease the stability of the system.

Of the statements shown above the best one that describes a situation that would reduce the stability of a forest ecosystem is answer choice…

A) A fierce predator is removed from the ecosystem.

The reason is that as we already know ecosystems are very complex and diverse, with levels and relationships between organisms that keep the stability of it. Removing any level from an ecosystem may disrupt the balance that may have been established over many years.

I hope it helps, Regards.

Uh…did i do this right?