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Answer:

1.hydrogen

2.template

3.mRNA

4.recombination

5.DNA and RNA are both made up of nucleotides. RNA is comprised of adenine, uracil, guanine, and cytosine. DNA is made up of adenine, thymine, guanine, and cytosine. DNA is a double-stranded chain of nucleotides comprised of base pairs that form a double helix. RNA is often a single-stranded chain of nucleotides.

6.The central dogma states that DNA contains the genetic code needed to make proteins—a process known as gene expression. Transcription and translation are the two steps involved in gene expression. In transcription, the DNA code is turned into RNA. In translation, the RNA sequence provides instructions to the cellular machinery to manufacture polypeptides, which become proteins.

7.Replication is the duplication of DNA, and it is important because, in cell division, each daughter cell must contain an exact copy of the original cell's DNA, since DNA contains the instructions required to make all of the cell's tissues. Recombination is the natural process for genetic sequences in a chromosome or between chromosomes to exchange genetic information. Recombination is important in nature because it produces genetic variations that may be preserved because of natural selection. Recombination also can be used in the laboratory to combine the genetic code of two different organisms.

Explanation:

PENNFOSTER answer

Answer:

1. hydrogen

2. template

3. mRNA

4. recombination

5. DNA and RNA are both made up of nucleotides. RNA is comprised of adenine, uracil, guanine, and cytosine. DNA is made up of adenine, thymine, guanine, and cytosine. DNA is a double-stranded chain of nucleotides comprised of base pairs that form a double helix. RNA is often a single-stranded chain of nucleotides.

6. The central dogma states that DNA contains the genetic code needed to make proteins—a process known as gene expression. Transcription and translation are the two steps involved in gene expression. In transcription, the DNA code is turned into RNA. In translation, the RNA sequence provides instructions to the cellular machinery to manufacture polypeptides, which become proteins.

7. Replication is the duplication of DNA, and it is important because, in cell division, each daughter cell must contain an exact copy of the original cell's DNA, since DNA contains the instructions required to make all of the cell's tissues. Recombination is the natural process for genetic sequences in a chromosome or between chromosomes to exchange genetic information. Recombination is important in nature because it produces genetic variations that may be preserved because of natural selection. Recombination also can be used in the laboratory to combine the genetic code of two different organisms.

Explanation:

Answer:

SNP → Envía la información de los estimulos al SNC (neuronas aferentes) y lleva una respuesta hacia los efectores (neuronas eferentes).

SNC → Recibe la informacion que envia el SNP, la procesa y envía una respuesta hacia el organo efector (interneuronas).

Explanation:

Al hablar del arco reflejo se hace referencia a la secuencia de pasos que se llevan a cabo para que el cuerpo reaccione ante un estímulo externo.  

En términos gerenales, el sistema nervioso periférico recibe informacion a modo de estimulo del medio externo. Esta información es enviada al sistema nervioso central, donde se procesa y se envía una respuesta adecuada en función del estimulo. Este mecanismo es el arco reflejo.

Existen tres tipos de neuronas involucradas en el arco reflejo.  

Modo de acción:  

El estímulo llega al cuerpo y es recibido por receptores sensoriales especializados que responden a ellos. La información recibida por estos receptores, es convertida de energia del estímulo (temperatura, luz, presión, etc) a energia del potencial de acción.  

Las neuronas aferentes, ubicadas en la dermis y epidermis, reciben la información de los receptores, reaccionan al estímulo y envian esa información al sistema nervioso central a modo de impulsos nerviosos.

Una vez que la información llega al sistema nervioso central, es procesada por las interneuronas, quienes cumplen la función de análisis y procesamiento de toda la información para enviar una respuesta. Las interneuronas manejan muchas de las señales sensoriales, las evaluan, las comparan, y envian una respuesta motora.

Las neuronas eferentes reciben esta respuesta de las interneuronas, y son estimuladas para llevar estas nuevas señales desde el sistema nervioso central hacia las células de los organos efectores. El órgano efector en general puede ser un músculo o una glándula.

Finalmente, el tejido de destino responde al estimulo a modo de contracción, en caso de tratarse de un músculo, o de liberación hormonal, en caso de tratarse de una glándula.

Answer:

ti it ran about 544 mybpbto    it ranii it last 544 mybp to 245 mybp d.

Explanation:

The Paleozoic era lasted for approximately 291 million years. The The Paleozoic Era is a significant period in the geological history of the planet.

The Paleozoic Era, commonly referred to as the Age of Ancient Life, is a key period in the geological history of the Earth, lasting roughly between 541 and 252 million years ago. The Cambrian, Ordovician, Silurian, Devonian, Carboniferous, and Permian are its six distinct time eras. The Paleozoic Era saw incredible evolution and the creation of numerous life forms, which laid the groundwork for the diversity of life that can be seen on Earth today. Life underwent a remarkable period of diversity during the Cambrian Period known as the "Cambrian explosion." Trilobites, brachiopods, and early arthropods were among the complex, hard-shelled animals that first emerged as a result of this surge.

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Answer:

fr

Explanation:

ayyyy check out my last questions

Answer: C

Explanation:

The sensory neurons picks up impulses and passes them via the spinal cord through the relay and motor neurons and finally to the brain.

Answer:

The order they go is (from left to right)

Organ system, Organism, Organ, Cell

Explanation:

A organism is made of multiple organ systems like humans (respiratory system, cardiovascular system, etc.)

A organ system has multiple organs like veins, heart, etc.

A organ is made of lots of cells

A cell is the unit of life.

Answer:

45678

Explanation:69

Answer:

C

Explanation:

Answer:

542.2 miles

Explanation:

The total straight line distance between Brasilia and Sao Paulo is 872 KM (kilometers) and 600 meters. The miles based distance from Brasilia to Sao Paulo is 542.2 miles.

Answer:

Emperor penguins are likely to pair with different mates the next breeding season; only about 15 percent pair with the same mate the following year. Adelie penguins, meanwhile always breed with the same mate as long as they both return to the same nesting ground.

Creation of marine reserves to protect Adélie penguin food sources and foraging areas.

Explanation:

Answer:

The main difference between international and national law is that international law regulates external relations between two or more countries by the signing of treaties and agreements concerning trade, war, the sea or oil, whilst national law or domestic law is applied within the boundaries of a country

Answer:

D. they can create deep valleys

Explanation:

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They can create deep valleys is true about folds.

The combined effects of gravity, water, and ice result in valleys, which are low-lying sections of land that have been eroded and washed out. Some are hollow, while others hang.

The majority of primary valley cuts are made by rivers and streams, creating sides with high walls and a narrow floor that from a distance resembles the letter "V." The steepness of the sides and the width of the floor are both influenced by the gradient of the river, or how quickly it descends.

Waters add to the land's natural twists as they move toward the sea by removing sediment from bends' exteriors.

Therefore, They can create deep valleys is true about folds.

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Answer:

e

Explanation:

It worsens the quality of the soil

Answer:

producers and secondary consumers

Explanation:

autotrophic means they make their own food. such as plants and heterotrophs is anything that eats other things to obtain energy. so this could be the second or third trophic level just depends on all the information you are given and what you want to choose.

The name of one trophic level that contains autotrophs is Producers, while the name of one trophic level that contains heterotrophs is the primary consumer.

A Trophic level may be defined as a sequential position of organisms in a food chain of an ecosystem.

Autotrophs are those groups of organisms that synthesize their own food in the presence of sunlight. They are the foundation of the trophic level.

Heterotrophs are those groups of organisms that depend on autotrophs in order to take energy for metabolism and other work.

Therefore, the name of one trophic level that contains autotrophs is Producers, while the name of one trophic level that contains heterotrophs is the primary consumer.

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Answer:

All answers are in the image

Explanation:

The four nitrogenous bases are A, T, C, and G. They stand for adenine, thymine, cytosine, and guanine. ... Adenine always pairs with thymine, and cytosine always pairs with guanine. The pairing nature of DNA is useful because it allows for easier replication.

Answer:

A poor insulator!

Explanation:

Since Iron has molocules so close together it CAN conduct heat very well. Because of this A and C are not relavent options.

Thermodynamics is "the branch of physical science that deals with the relations between heat and other forms of energy (such as mechanical, electrical, or chemical energy), and, by extension, of the relationships between all forms of energy."

Due to the fact iron is a strong conductor, it IS bound to the law od thermodynamics. It's a very easy conceept to understand, you just have to pay attention a little bit and searching up definitions can help too!

Answer:

D) Expressed in the stomach, but not in the cells of the small intestine

Explanation:

The stomach and small intestine produce different enzymes is gene codes for pepsin is expressed in the stomach but not expressed in small intestine.

Trypsin is an enzyme that helps us digest protein. In the small intestine, trypsin breaks down proteins, the process of digestion that formed in the stomach.

Is a proteolytic enzyme produced by the pancreas in an inactive form called trypsinogen.

Thus, option "D" is correct as trypsin is expressed in stomach for protein breakdown.

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Answer:

The images obtained from the electron microscope provides key knowledge regarding the structural basis of cell function and various diseases associated with the cells. Thus, if a scientist desires to see the structure, which binds a cell with the adjacent cells, he or she should use an electron microscope.

Explanation:

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Answer:

True

Explanation:

Fossils are preserved remains of organisms. They are preserved in two ways. They can be the actual remains of organisms.

Answer:

c. Science has made the world look smaller

Explanation:

Honestly speaking, science has definetly made the word a larger and better place.

es la A

Hace aproximadamente 250 millones de años ocurrió la extinción masiva del Pérmico-Triásico, un evento en el cual murieron hasta el 96 por ciento de las especies marinas y un porcentaje similar de las terrestres. Cerca de tres millones de años después se produjo la separación, a partir de un ancestro en común, de los linajes que con el tiempo darían origen a las aves y los cocodrilos. El grupo que incluye tanto a cocodrilos como aves se lo denomina Archosauria, que significa ‘reptiles dominantes’.

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Answer:

they belong to kingdom (A). Animalia.

Answer:

D: all of the above

Explanation:

Answer:

B 20 amino acids, hundreds of proteins

Explanation:

I hope this helped :)

Answer:

1.Law of conservation of energy

2. Energy transformation

3.Friction

4. electric, thermal

5. Kinetic, Potential

6. Potential, Kinetic

7.Kinetic

8.Radiant, electrical

9. Electrical

10. Radiant