Which of the following describes the role of nitrogen-fixing bacteria in the nitrogen cycle?
Nitrogen-fixing bacteria converts

A) nitrogen gas into ammonia
B) nitrates into nitrogen gas
C) ammonia into proteins
D) proteins into nitrates

Answers

Answer 1

Answer:

nitrogen gas into ammonia


Related Questions

Gut bacteria provide all of the following benefits Except

Answers

Answer:

Despite the acidic of the stomach, diverse phylotypes of resident microbes thrive in the stomach.

Explanation:

how many molecules of DNA would result from one molecule after five cycles of PCR?

Answers

PCR is responsible for the doubling of molecules of DNA replication. Therefore, after five cycles the result will be V power of 2. Therefore, the correct answer is 32.

O daltonismo é um distúrbio moderado ligado ao cromossomo X que se caracteriza pela cegueira para as cores verde e vermelha. Considerando-se o cruzamento de uma muher carreadora do alelo para o daltonismo ao se casar com um homem de visão normal, cuais as chances de as filhas desse casal serem carreadoras é de ?

Answers

Answer:

50%

Explanation:

Olá. Primeiramente é necessário informar que perguntas em português devem ser postadas no campo "world Languagens". Isso porque esse não é o servidor basileiro e sim o servidor americano. Caso contrario, a sua pergunta pode nunca ser respondida e até mesmo excluida do site.

Em segundo lugar, para que seja possivel que você repsonda a essa pergunta você precisará preencher um Quadrado de Punnett, como mostra a figura abaixo.

Como você sabe, as mulheres possuem os cromossomos XX e os homens XY. Como a mulher apresentada na pergunta acima possui o alelo para o daltonismo, mas não apresenta daltonismo, podemos considerar que apenas um dos cromossomos dela possuem esse alelo. O alelo para o daltonismo é recessivo, sendo assim, podemos considerar que essa mulher possui os alelos XDXd. Homem com quem essa mulher se casa, não possui daltonismo, logo os alelos dele são XDY, como mostrado na figura.

Ao preencher o quadrado de Punnett, você verá que existe a possibilidade desse casal possuir duas filhas, uma delas pode possuir os alelos XDXd, igual a mãe e, portanto, ser carreadora do alelo para o daltonismo.

Sendo existe uma chance, em duas filhas desse casal ter uma filha carreadora de daltonismo. Isso é igual a 1/2, que resulta em 0,5, ou 50% de chances de ter uma filha carreadora de daltonismo.

Two students are pushing a sofa across a room what is the net force applied to the sofa by the students?

Answers

Answer:

400N

Explanation:

Hope this helps! Best of luck :)

What are the two steps of protein synthesis?
A. Cellular Respiration & Photosynthesis

B. Transcription & Replication

C. Transcription & Translation

Answers

Answer:

C. Transcription & Translation

Explanation:

Answer:

A cellular respiration & replication

Explanation:

Identify the genotype for each numbered item.
RY
Ry
TY
гу
1.
2.
O
RrYy
RY
RRYY
1
RrYY
3
RETRY
Ry
RRYy
RRY
RrYy
2
O
Y
RrYY
RrYy
TYY
myy
RrYy
Rryy
mrYy
туу

Answers

Based on the dihybrid cross, the genotype of the numbered item are as follows:

RY × Ry = RRYyRy × ry = Rryyry × RY = RrYyry × rY = rrYy

What is genotype?

The genotype of an organism is the sum total of the genes inherited by the individual from the parents.

The genotype of an organism is made of the two parents alleles, where the organism receives an allele for each gene from each of the parents.

From the dihybrid cross, the genotype of the numbered item are as follows:

RY × Ry = RRYyRy × ry = Rryyry × RY = RrYyry × rY = rrYy

Learn more about genotype at: https://brainly.com/question/2235939

PLEASE HELP!!!! How do you think cell phones affect attention in class? Describe an experiment you could perform to test your hypothesis. Include your hypothesis, operational definitions of your independent and dependent variables, who your participants would be, and how you would randomly assign them to experimental or control groups.

Answers

Let a portion of students take a test without studying and a portion just chilling on their phone before the test

An oak tree falls in a forest. It kills some ants and stops grass from growing
below it. What type of disturbance is this?
O A. Secondary
O B. Primary
O C. Cyclical
O D. Small

Answers

Answer:

This is O D. Small type of disturbance.

Explanation:

Small-scale biological disturbance.

Answer:

O D. small

Explanation:

In ecology a disturbance is an event that causes a change in the environment. There are small-scale disturbances and high-magnitude disturbances. Small-scale disturbances are typically driven by biological processes -for example the fall of a tree- while high magnitude disturbances are typically driven by physical processes -for example, storms-. Small-scale disturbances as single-tree blowdowns are very important  to create and maintain diversity and heterogeneity in the forest.

Hope this helps! can i get brainlest please Thanks!

Identify the main floral organs
of a flower.

Answers

petals, sepals, stamen, and carpel

Javier investigated what happens when Earth's plates meet. He found that as Earth's plates meet at plate boundaries and interact, they move in three different ways. The ways they interact produce changes on land and on the ocean floor. What are the kinds of boundaries that plates form? Label each plate boundary with the correct type from the choices below.

Answers

Answer:

I. Divergent

II. Convergent

III. Transforming

Explanation:  

The crust is the outermost layer of the earth. It is divided into many plates that move over the mantle. Nowadays, there are six different bigger plates and twelve that are smaller. These plates are limited by three types of ridges or borders that differ in the movement they produce.

Boundaries types:

I. Divergent: New crust is created by the rising molten materials coming from the mantle. Two plates separate, and the stream of hot material creates a new seabed between them. It occurs an expansion of the sea bottom. As old plates get separated, the new and young crust instantaneously gets formed. The emerging mantle occupies the space left by the separation of the two plates. This process occurs along with an underwater mountain range, known as the mid-oceanic ridge or divergent ridge. An example of this is the ridge located in the middle of the Atlantic Ocean, extending from Greenlander to the southernmost point of South America.

II. Convergent. Collision area between two plates. Two oceanic plates might collide, or one oceanic plate with a continental one. In this last case, the oceanic crust sinks under the continental plate, and magma rises to the surface by crevices. The thicker and older plate subduces under the other plate. The Himalayas and Los Andes are examples of these collisions. Also, collisions create volcanic arches and continental arches.

III. Transforming. The plates slide laterally with each other, and they are usually called faults. It is associated, in general, with the oceanic ridge, although it might also occur in the continental plate. No rocky material is either destroyed or formed. When the plates move and produce a displacement of one transforming limits from side to side, earthquakes occur. The movement breaks the crust and originates pronounced fractures. The San Andrés fault is an example of this plate ridges.

The kinds of boundaries that plates form is the fact that seismic activity takes place at the three known types of plate boundaries called divergent, convergent, and transform.

What happens when Earth's plates meet?If two tectonic plates meet, they create a kind of convergent plate boundary.

One converging plates often shift or move below the other, in  an act known as subduction.

The new magma (molten rock) tend to increase and may erupt to create volcanoes.

Learn more about Earth's plates from

https://brainly.com/question/1162125

Amalia has the flu, a communicable disease that causes a cough and a runny nose. Which best describes how she likely got it?
She does not exercise.
She has a poor diet.
She touched the doorknob in a classroom.
She inherited it from her parents.

Answers

Answer:

is this multiple choice if not i have a better way of answering the third one like; as someone in her class has the flu the person touched the doorknob ,after a while she also touched it and without washing her hands  she touched her nose then the disease had  entered her body

YOU CAN SIMPLFY IT SINCE IF YOU TO BE IN A TEST YOU CANNOT REMEBER ALL THAT... :)

BUT I TRIED

Explanation:

Answer:

She touched the doorknob in a classroom.

Explanation:

anyone can get a cold By Touching something that was affected, or getting near someone who has been affected.

I hope this helped!

Is digesting food a physical or chemical chnage?

Explain how you know what kind of chnage occurred

Answers

Answer: Digesting food is a chemical change.

Explanation:

Chemical changes cannot be undone so digesting the food is considered a chemical change.

please help will mark brainliest​

Answers

They overgrazed on the parks vegetation and grasses.

Which process involves TWO DNA divisions?
A. Mitosis

B. Meiosis

Answers

Answer:

b) meiosis

Explanation:

 

Answer:

B. Meiosis

Explanation:

Meiosis involves two DNA divisions.

What process is not used to maintain homeostasis within cells
A. Diffusion
B. Osmosis
C. Dialysis
D. Active Transport

Answers

Answer: D

Explanation:cells cannot change their external environment to maintain homeostasis. They communicate with other cells via cell signaling, they take up nutrients for sustainability and growth, cells also breakdown unwanted molecules as a way of waste management.

Scientists often look for similar genes in very dissimilar organisms as evidence that they are related.
O True
False

Answers

Answer:

True

Explanation:

how might a country run out of water​

Answers

Answer

Along with decreasing rainfall comes rising temperatures. By 2050 the U.S. could be as much as 5.7°F warmer, and extreme weather events, such as heatwaves and drought, could be more intense and occur more frequently. As temperatures warm, evaporation increases, further decreasing water in lakes, reservoirs, and rivers.

4. Which makes up most of Earth's surface? (1) the
atmosphere (2) the lithosphere (3) the hydrosphere
Option 1
Option 2
Option 3

Answers

Answer:

3) hydrosphere

Explanation:

About 71 percent of the Earth's surface is water

Investiga un uso beneficioso (medicina o industrial) para las bacterias, virus y Hongos microscópicos. Explica brevemente su utilización.

Answers

Answer:

- Hongos: antibiótico penicilina

- Bacterias: producción de insulina para uso humano

- Virus: vectores basados en adenovirus para el desarrollo de vacunas  

Explanation:

Los microorganismos son fundamentales para el desarrollo de diferentes tipos de aplicaciones industriales y medicinales. Por ejemplo, la penicilina es una sustancia sintetizada por el hongo Penicillium notatum, la cual es ampliamente utilizada como antibiótico debido a sus propiedades antibacterianas. Las penicilinas son antibióticos del grupo de los betalactámicos que tienen como núcleo un anillo central de beta-lactama, las cuales son capaces de destruir una amplia variedad de bacterias​. Por otra parte, las bacterias pueden ser usadas para la generación de moléculas orgánicas con fines médicos. Por ejemplo, cepas de Escherichia coli han sido modificadas mediante técnicas de ingeniería genética con el objetivo de producir insulina humana, una hormona central en el metabolismo de la glucosa. Mediante técnicas de recombinación genética, el gen responsable por sintetizar insulina humana ha sido introducido en bacterias. Las cepas de E. coli son relativamente fáciles de cultivar en el laboratorio y por lo tanto permiten obtener grandes cantidades de esta hormona (insulina). Finalmente, existen ciertas tipos de virus inocuos para nuestro organismo los cuales han sido recientemente utilizados como vectores para el desarrollo vacunas. Mediante esta técnica de ingeniería genética, un determinado vector viral (por ejemplo, un virus de la familia de los adenovirus) es modificado genéticamente con el objetivo de insertar un fragmento de un agente infeccioso o 'antígeno' el cual individualmente es incapaz de producir daño. Las vacunas diseñadas a partir de vectores virales son inofensivas para el organismo pero son capaces de desencadenar una respuesta inmune contra el antígeno recombinante, generando de este modo una memoria inmunitaria en contra el agente infeccioso.

ESTOS ALIMENTOS DULCES AZUCARADOS NO SÓLO SON MALOS PARA LA SALUD,SINOQUE YANDIEN PUEDEN SER E________.AMENUDO SE DISFRASAN CON NOMBRES QUE PUEDEN SER S________ ,

Answers

La respuesta correcta para esta pregunta abierta es la siguiente.

Desafortunadamente, no anexaste opciones o incisos para responder la pregunta. Sin embargo, podemos comentar lo siguiente.

ESTOS ALIMENTOS DULCES AZUCARADOS NO SÓLO SON MALOS PARA LA SALUD, SINO QUE TAMBIEN PUEDEN SER ENGAÑOSOS. A MENUDO SE DISFRAZAN CON NOMBRES QUE PUEDEN SER SABROSOS.

Es muy importante que seas cuidadoso con los alimentos que consumes como parte de tu alimentación. Muchas empresas, a través de sus marcas, comparten publicidad engañosa para atraer más clientes bajo la promesa de alimentos sabrosos y nutritivos. Y la verdad es que no. Te están engañando.

No hay nada como basar tu dieta diaria en frutas, verduras y un equilibrio entre proteínas, carbohidratos, azúcares naturales y grasas.

Si es necesario, consulta a tu médico o a un nutriólogo para que te expliquen qué tan malo pueden ser los alimentos con muchos químicos.

¿Son sabrosos? Sí, pero también están llenos de sal, grasas, azúcares en excesos que le hacen mucho daño a tu salud.

En México ya existe una ley que obliga a todos los productos colocar unas etiquetas de color negro con blanco en todos los productos con la leyenda: "exceso de sodio," "exceso en grasas," exceso en azúcar."

Esto, con el propósito de que la gente se entere antes de comprarlos.

Of the following, which statement is false?

A) Biotic factors are living things
B) A biome is a major regional or global community of organisms
C) An example of an abiotic factor is sunlight
D) Heterotrophs can make their own food
E) Other:

Answers

Answer:

D) Heterotrophs can make their own food

Answer:

d is your answer it's definitely d

do you think it is right for people to keep animal's in their homes?​

Answers

Answer:

There are many health benefits of owning a pet. They can increase opportunities to exercise, get outside, and socialize. Regular walking or playing with pets can decrease blood pressure, cholesterol levels, and triglyceride levels. Pets can help manage loneliness and depression by giving us companionship.

Answer:

Yes,just yes no explanation

water is warmers by the sun and ?

Answers

Answer:and then it evaporates into the atmosphere

Explanation:

Which of the following is most likely to form when hot magma rises up as tectonic plates move apart below the ocean
1.mid-ocean ridge
2.fault
3.trenches
4.subduction zone

Answers

That would be the fault

Answer:

A. Mid-ocean Ridge.

Explanation:

A mid-ocean ridge a mid-oceanic ridges are underground mountain formed by tectonic plates.

Which pie graph is shaded to best represent the approximate percentage of time that humans have existed during Earth’s entire history?

Answers

Answer: I chose D and got it right just always choose the smallest one their hope this helps yall

Explanation:

Describe how an ecosystem with high biodiversity might look compared to an ecosystem with low biodiversity.

Answers

Answer:

High biodiversity, with many species present, is good. It usually means that an ecosystem is healthy and relatively undisturbed by humans. Low biodiversity is characteristic of an unhealthy or degraded environment. A mown lawn in a city park is an example of an ecosystem with low biodiversity.

help me ls 20 points !!! i will mark brainliest just someone help me quick

Answers

Answer:

Mutations and sexual reproduction is the right answer

Hope it helps:)

Please mark me the brainliest if you won't mind:)

Choose the verb form that correctly completes the sentence.
Why_? you at work yesterday?
wasn't
aren't
weren't
isn't

Answers

Answer:

the answer is weren't

Explanation:

wasn't = was not

aren't = are not

isn't = is not

Which of the following is NOT one of Darwin's conditions for natural selection to occur?

Answers

Answer:b

Explanation:

¿ Como recuperarías la Dieta Prehispánica y las tradiciones alimentarias que nos heredaron nuestros antepasados?

Answers

Answer:

A través de la literatura,

Explicación:

Recuperaríamos la Dieta Prehispánica y las tradiciones alimentarias que nuestros antepasados nos heredaron a través del estudio de su escritura sobre el plano de la dieta y los alimentos que consumen. Al adoptar la Dieta Prehispánica, podemos mejorar nuestra salud y recuperar nuestras tradiciones. También obtenemos tradiciones alimentarias que estuvieron presentes en la Dieta Prehispánica debido a la literatura escrita por las personas presentes en ese momento por lo que los documentos escritos ayudan a recuperar la Dieta Prehispánica y las tradiciones alimentarias.

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