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cestrela7 [59]
3 years ago
6

A series of radiographic images taken of the stomach and duodenum after the contrast agent barium has been swallowed is a(n)

Biology
1 answer:
denpristay [2]3 years ago
8 0
A series of radiographic images taken of the stomach and duodenum after the contrast agent barium has been swallowed is an upper GI series, where 
GI<span> stands for "</span>gastrointestinal<span>," which means "stomach and intestines".
</span>This x-ray examination of the upper gastrointestinal<span> (</span>GI<span>) tract,</span>can diagnose problems in your upper GI tract, how to prepare for the procedure, and what to expect afterwards.
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How has law enforcement and U.S racially effected black communities.
vredina [299]

Explanation:

For example , black people may be arrested more frequently in part because they experience greater poverty.

5 0
3 years ago
Class reptilia and class amphibia share many traits. Name these shared traits
spin [16.1K]

Answer:

Explanation:

Amphibians are group of animals that live a double life; one in water with gills and the other on land with lungs (at maturity). They include frogs, newts, salamanders etc.

Reptiles ( meaning to creep under shadow of darkness) are group of animals that possess scales. They include snakes, crocodiles, lizards etc.

Reptiles and amphibians are distantly related but share some traits including:

1. They are both poikilothermic (cold-blooded) animals i.e. their body temperature is dependent on that of the environment's.

2. They both lay eggs externally, although that of amphibians is fertilized after being layed

3. They both possess lungs for gaseous exchange, although, amphibians use gills in water.

4. Both reptiles and amphibians belongs to Chordata i.e. they both possess a vertebrae column (backbone)

5. Most reptiles and amphibians make use of the same defensive and attacking traits as a pretty and predator respectively. They employ camouflage, biting and inflating of their body size.

7 0
3 years ago
In humans, the hormone testosterone enters cells and binds to specific proteins, which in turn bind to specific sites on the cel
LuckyWell [14K]

Answer:

As a transcription factor

Explanation:

Testosterone is a male sex hormone secreted by the testicles which promote the growth of the male reproductive organs and the male characters like muscle buildup.

The hormone shows the paracrine effect and thus act on the target cell at distant. The mechanism of action of the testosterone is that it controls the gene expression of various other genes.

The testosterone binds the specific proteins which activate the expression of the gene that is they acts as a transcription factor which activates the expression.  

Thus, as a transcription factor is correct.

4 0
3 years ago
Choose the true statement(s) concerning the eukaryotic glycocalyx
Illusion [34]

Explanation:

eukaryotic glycocalyx is present in prokaryotic cells, eukaryotic cells can also have glycocalyces especially single celled eukaryotic organisms.

8 0
3 years ago
alguien que me ayude con esta pregunta por favor cuáles son las enfermedades que se desarrollan lentamente pudiendo durar mucho
Anarel [89]

Answer:

Enfermedad que se desarrolla lentamente, pudiendo durar mucho tiempo o incluso el resto de la vida de una persona. Un ejemplo es la artritis.

Explanation:

Tipo de glóbulo blanco o leucocito que fabrica unas sustancias llamadas anticuerpos, muy importantes en nuestras defensas.

Enfermedades que llevan a la muerte

Las diez enfermedades más misteriosas

Sida.

Alzhéimer.

La causa del alzhéimer todavía es desconocida. Las investigaciones suelen asociar la enfermedad con la aparición de placas seniles y ovillos neurofibrilares. ...

Resfriado común.

Gripe aviar.

Pica.

Enfermedades autoinmunes.

Esquizofrenia.

8 0
3 years ago
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