Scientists have noted patterns in the Earth's seafloor structures. For example, volcanic ridges are typically located in the center of the oceans, and trenches are typically located along the edges of continents. In addition, seafloor rocks found at the trenches are usually older than seafloor rocks found at the volcanic ridges. Which explanation of the past movement of the Earth's plates is best supported by this information? A. The continents were pushed apart when new crust formed in the center of the ocean and pushed older crust away from the volcanic ridges. B. The continents were separated when new crust that formed at the edges of the continents pushed older crust towards the center of the ocean. C. The formation of new crust at the trenches widened the seafloor and pushed the edges of the continents away from one another. D. The Earth's crust formed at the trenches and moved towards the volcanic ridges to make room for newer crust, pushing the continents apart.

Answers

Answer 1

Answer:

A. The continents were pushed apart when new crust formed in the center of the ocean and pushed older crust away from the volcanic ridges.

Explanation:

The crust 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

II. Convergent

III. Transforming

In divergent boundaries, a 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.


Related Questions

Identifica la opción que relaciona correctamente ambas columnas.


1a, 2c, 3d, 4b, 5e

1e, 2d, 3c, 4a, 5b

1c, 2e, 3a, 4d, 5b

1d, 2e, 3a, 4b, 5c

Answers

Complete question:

Identifica la opción que relaciona correctamente ambas columnas.

1a, 2c, 3d, 4b, 5e 1e, 2d, 3c, 4a, 5b 1c, 2e, 3a, 4d, 5b 1d, 2e, 3a, 4b, 5c

ncontrarás las columnas en archivos adjuntos

Answer:

1c, 2e, 3a, 4d, 5b

Explanation:

Fenotipo: Parte de la información genética que se manifiesta en el individuo.

Puede definirse como la forma de expresión de uno o mas caracteres por parte del individuo. Muchos factores externos al individuo pueden moldear el fenotipo para hacerlo mas apto al medio. Asimismo el fenotypo y el ambiente actuan en forma conjunta para determinar el destino de los genes en el espacio y en el tiempo.

Cromosoma: Conjunto de ADN con forma de bastón o de X.

Todas las unidades genéticas que llevan información de herencia y que regulan los procesos celulares. Pueden distinguirse claramente durante la división cellar, durante la cual los cromosomas se condensan. La molécula de ADN en eucariotas es lineal y larga, y se asocia a proteinas llamadas histonas y a otras que no son histonas, formando la cromatina. Anted de la division celular la cromatina es laxa, y durante la división se condensa y se define en cromosomas. Cada cromosoma porta diferentes genes.  

Alelo: Variante que determina un caracter (dominante or recesivo)

Los alelos son las distintas formas en las que un gen puede expresarse. Son las formas alternativas de un mismo gen. Resultan d la mutación de un gen original. Estas formas codifican para la misma caracteristica, pero exresando un fenotipo distinto al original.

Genotipo: Contiene el paquete completo de información genética

El conjunto de dos o mas alelos que un individuo tiene en un locus particular. Puede ser

HOMOCIGOTA, si el individuo tiene alelos iguales  HETEROCIGOTA, si el individuo tiene alelos distintos

Gen: Información genética específica localizada en el núcleo de la célula. Fragmento de ADN.

Unidad de herencia que es transmitida de padres a hijos, de generación en generación. Estan fisicamente localizados en los cromosomas, por lo que puede definirse como un fragmento de ADN.

why do wild plants need to reproduce sexually as well as asexually ?

Please answer correctly​

Answers

Answer:

Wild plants would need to reproduce sexually so that there can be variation throughout the species to reduce the number of plants being at risks to certain diseases if the environment is changing. However, the wild plants need to produce asexually if the environment is stable.

Wild plants need to reproduce sexually as well as asexually in order to create variation within a species and lower the number of plants that are susceptible to specific illnesses in a changing environment.

What are wild plants?

Wild plants would need to reproduce sexually. However, if the environment is stable, wild plants must reproduce asexually. Since male and female gametes are not mixed, asexual reproduction produces plants that are genetically similar to the parent plant and increases survival.

A seedling formed from a seed matures more slowly and is less robust than a cutting or bud is taken from an older plant.

Therefore, in order to diversify within a species and reduce the number of plants susceptible to specific diseases in a changing environment, wild plants must reproduce both sexually and asexually.

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A water pipe bursting in the winter is a result of which type of weathering?
A. Biological
B. Exfoliation
C. Chemical
D. Freeze-thaw
Hurry!

Answers

The answer of the question is
B. Exfoliation

Answer:

D

because water expands when it freezes

Can anyone tell me a simple definition for chemical coordination?

Answers

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Chemical Coordination is like the coordination that occurs between 1 or more organs / organ systems in multicellular organisms (for example ↦ humans, animals, birds etc.). During this chemical coordination, cells in the organs / organ systems will produce some chemicals which helps in regulating the activities of other cells in the body.

Example ↦ Endocrine glands in the pancreas secrete hormones which consist of proteins & lipids.

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꧁❣ ʀᴀɪɴʙᴏᴡˢᵃˡᵗ2²2² ࿐

In 40 words or fewer, why do you think a 0.1% difference in DNA can
be useful to society?

(The answer is this ⬇️)


The 0.1% difference in DNA
can be used to identify
someone who has
committed a crime or free
someone who hasn't, to determine someone's family
heritage, and to help give a
person more precise
medical treatments.

To anyone who needs it

Answers

Answer:

The 0.1% difference in DNA

can be used to identify

someone who has

committed a crime or free

someone who hasn't, to determine someone's family

heritage, and to help give a

person more precise

medical treatments.

Explanation:

Easy points thxx

what is the name given to the male cell in the flower​

Answers

Answer:

The name given to the male cell in the flower is called stamens and usually surrounds the pistil.

Explanation:

Hope this helps.

Sort the steps of digestion in order from beginning to end.

- The stomach kills some bacteria and breaks food down into chyme.
- Nutrients from dissolved food are absorbed from the small intestine into the bloodstream.
- Water and nutrients are absorbed by the large intestine; chyme becomes waste matter.
- Saliva mixes with food and changes starches into sugars.

Answers

- Saliva mixes with food and changes starches into sugars.

- The stomach kills some bacteria and breaks food down into chyme.

- Nutrients from dissolved food are absorbed from the small intestine into the bloodstream.

- Water and nutrients are absorbed by the large intestine. Chyme becomes waste matter.

Saliva mixes with food and changes starches into sugars is the beginning step of the digestion.

What are the functions of saliva?

Saliva is the medium that bathes the taste receptors in the oral cavity and in which aroma and taste compounds are released when food is eaten.

It is composed of water, mucus, proteins, mineral salts, and amylase. As saliva circulates in the mouth cavity it picks up food debris, bacterial cells, and white blood cells.

Saliva moistens the mouth for comfort, lubricates as you chew and swallow, and neutralizes harmful acids. It also kills germs and prevents bad breath, defends against tooth decay and gum disease, protects enamel, and speeds up wound healing.

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Which statement best describes how a catalyst can speed up a chemical reaction?
a. The catalyst decreases the activation energy needed.
b. The catalyst increases the concentration of products.
c. The catalyst binds to enzymes to release substrates.
d. The catalyst increases the concentration of reactants.

Answers

D. The catalyst increases the concentration of reactants.

Answer:

D. The catalyst increases the concentration of reactants.

Explanation:

An ecosystem contains biotic and abiotic
factors. Which of the following would be
an abiotic factor?
A. a microorganism on an animal
B. fungi growing on a tree
C. nutrients in the soil

Answers

Answer:

nutrients in the soil is the correct answer

The correct answer is option (c)  nutrients in the soil.

What is biotic and abiotic factors ?

Biotic and abiotic are the two essential factors responsible for shaping the ecosystem.The biotic factors refer to all the living beings present in an ecosystem, and the abiotic factors refer to all the non-living components like physical conditions and chemical agents  in an ecosystem. Therefore, both the abiotic and biotic resources affect the survival and reproduction process.

Why other options are incorrect?

Option (a), (b) are incorrect as they are biotic factors.

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Formation of an RNA hairpin cannot be the sole factor in the termination of transcription in prokaryotes. Explain why.

Answers

Answer:

As the transcription process proceeds, a variety of secondary structures forms by the nascent RNA. t takes place due to the fact that portions of the transcript as complementary base pairs form.

The transcript could be pause but terminate, the hairpin loop causes RNA Pol to pause. There are two different ways to terminate transcription in prokaryotes

- intrinsic termination: in this no external factors required

- Rho protein termination: binds to end of msg and moves along by ATP hydrolysis to catch up (rho is faster)

Why has the number of people in the world increased if the human population growth rate has decreased?

Answers

Answer:

Life expectancy has steadily risen.

People live longer lives.

To understand the reasons why the number of people in the world has increased and the population growth rate has decreased, it is necessary to understand how the world's demographic growth rate is calculated.

The calculation is made from the balance between the total number of people alive and the total number of deaths that occurred in a period of time.

Therefore, we can understand that the population growth rate has decreased due to several relevant factors, such as:

Increased life expectancy.The decrease in infant mortality.Rising fertility rates.Urbanization.Economic development.

These are some of the reasons that help us understand why population numbers increase and population growth rate decreases.

Economic development, new technologies and a better quality of life for the population are directly related to the decrease in the population growth rate.

Learn more here:

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true or false each human somatic cell contains two copies of each chromosomes for a total of 23 chromosomes

Answers

Answer:

I'm pretty sure it might be false

I think the answer is false

Does anybody know a nice place to watch the fireworks tomorrow around the San Francisco area??

Answers

yes,kumain kanaba ÚwÙ

Answer:

In the open

Explanation:

Or next to an attraction nearby

Part B: What is the name of the process that has occurred, and how would it likely occur in this population? (2 points)

Answers

Answer:

Explanation:

Please it seems your question is incomplete

please answer this ​

Answers

Answer:

11. T

12. F

13. F

14. F

15. T

Answer: T,F,F,F,T


Explanation:

Identify the error in the following statement: “Photosynthesis is a chemical reaction that takes place in the chloroplasts of green plant cells, where chemical energy is used to convert carbon dioxide and water into glucose and oxygen.”

A. “chloroplasts” should be “mitochondria”
B. “water” and “oxygen” should be switched
C. “chemical” should be “light”
D. No errors

Answers

Answer:

C light energy instead of chemical energy

Explanation:

Photosynthesis does take place in the chloroplasts (repirarion takes place in the mitochondria)

The equation for photosynthesis is Carbon dioxide + water --> glucose + oxygen (so that statement is correct)

Answer:

D. No errors

Explanation:

After the earth will destroyed then what will be the next generation​

Answers

[tex] \Huge {\boxed{\blue{{ \red{A}}{ \blue{n}}{ \pink{s}}{ \orange {w}}{ \green{e}}{ \purple{r}.....}}}}[/tex]

....Explanation....

[tex]1st \: thing \: we \: don't \\ \: know \: that \: what \: will \: happen \: if \\ \: earth \: is \: destroyed. \: Only \\ \: myths \: nd \: prove \: are \: there \\ \: that \: human \: life \: will \: be \: possible \: on \\ \: mars \: many \\ \: theories \: about \: shifting \\ \: of \: human \: beings \: from \:earth\: to\: earth \:planets\: and \\ \: many \: myths \: says \: that \: everything \: will \: be \\ \: begin \: again \: soo \: no \: body \: knows \\ \: exactly \: what \: the \: truth \\ \: bcz \: we \: have \: not \: seen\:future \: only \: myths \\ \: nd \: theories \\ \: are \: there.[/tex]

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What term means removing the nucleus from a cell?
nuclear proliferation
enucleation
nuclear fission
disnucleation

Answers

Answer:

Enucleation

Explanation:

In a cell, resembling a factory which organelle best describes the factory job at hand? Answer the following.

1. Job:
Conveyor Belt

Job Description:
Moves the products to the shipping department

2. Job: Assembly Line

Job Description:
Products are created from raw materials on the assembly line

3. Job: Packaging and shipping

Job description:
Packs nutrients and sends them off for distribution

Answers

Answer 3. Packaging and shipping

What is the main source of nutrients for autotrophs?

Answers

Answer:

Most autotrophs use a process called photosynthesis to make their food. In photosynthesis, autotrophs use energy from the sun to convert water from the soil and carbon dioxide from the air into a nutrient called glucose.

A 70-year-old male presents with back pain, fever, and weight loss. He reports that he had a recent respiratory infection from which he thought he recovered. Tests revealed increased white blood cell count, and a diagnosis of endogenous osteomyelitis was made. The primary organism causing this condition is

Answers

Answer:

This question lacks options, options are:

a.Fatigue fracture

b.Stress fracture

c.Pathologic fracture

d.Greenstick fracture.  

The correct answer is c.

Explanation:

A pathological fracture is one produced in a weakened bone as a result of trauma that would not cause such an effect on bones that had their composition, resistance or flexibility properties at the correct levels, that is, a pathological fracture is any loss of bone continuity that occurs in a weakened bone, secondary this weakness to the development of a disease. Endogenous osteomyelitis is a blood-borne bacterial infection that spreads to the bone.

Molecules that do not contain carbon are called inorganic.

true
false

Answers

Answer: true

Explanation:

it does contain carbon

Organic molecules contain carbon and inorganic molecules do not contain carbon. Organic molecules are synthesized by living things and inorganic molecules are not. Organic molecules are consumed by living things and inorganic molecules are not. All organic molecules contain carbon, bonded to other elements.

So true.

what is a skeleton and give two characteristics of a mammal​

Answers

A skeleton is a structural frame that supports an animal body.

The skeletal system of mammals and other vertebrates is broadly divisible functionally into axial and appendicular portions. 

There are two major types of skeletons: solid and fluid. Solid skeletons can be internal, called an endoskeleton, or external, called an exoskeleton, and may be further classified as pliant (elastic/movable) or rigid (hard/non-movable).

Fluid skeletons are always internal.

The presence of hair or fur.

A four-chambered heart.

Answer: well I know the skeleton is the bone structure in some living organisms if there a vertebrate

Which of the following types of stars started out on the main sequence with the largest initial mass?

a, b, c, or d?

Answers

Answer:

answer: C

Explanation:

hope it helps thanks❤

Explain what is happening between these 2 atoms.

Answers

Like a magnet they are repelling from each other

explain the importance of dimensioning in biology​

Answers

Answer:

Even if you make a drawing to scale, it would be difficult to determine the exact precision that is needed.

It would be time consuming to measure each of the lines to determine measurement.

The basis for modern part dimensioning is the need for interchangeable parts (being able to buy something off the shelf that fits what you already have)

Explanation

When dimensioning, it is good technique to avoid listing the dimension more than once through out the drawing.

If you need to list a dimension more than once, for accuracy or ease of viewing, you must encase the dimension within a set of brackets.

Answer:

The purpose of dimensioning is to provide a clear and complete description of an object. A complete set of dimensions will permit only one interpretation needed to construct the part. Dimensioning should follow these guidelines. Accuracy: correct values must be given.

Which cell feature is responsible for making proteins?

Answers

Answer

FRUITS AND VEGETABLE

The endoplasmic reticulum

why is DNA a useful form of evidence for developing a phylogenetic tree?

a) DNA never changes
b) DNA is the newest thing in science
c) DNA is passed from generation to generation ​

Answers

Answer:

DNA is useful for a phylogenetic tree because DNA is passed from generation to generation.

the answer;

should be C

HAVE A NİCE DAY

Explanation:

greeetings from Turkey ツ

C , dna is passed generation to generation!

In 1980, scientists suggested that the great mass extinction of 65 million years ago (which ended the reign of dinosaurs) may have been caused by a large impact from space. What discovery gives a big boost to this idea

Answers

Answer: the discovery of a buried crater (about 200 km across) near Chicxulub, Mexico

The discovery of a buried crater (about 200 km across) near Chicxulub, Mexico.

What is extinction?

Extinction is defined as the disappearance of an organism or a group of organisms as a result of environmental factors or changes in the members' evolutionary processes.

It can also be defined as an evolutionary process that causes a species or population to go extinct.

When there are no longer any living members of a certain animal or plant species anywhere in the globe, the species has become extinct.

Generally speaking, species disappear for the following reasons:

Genetic and demographic phenomena.Habitat destruction in the wild.Species introduction that are invasive.Global warmingHunting and illicit trade.

Thus the discovery of a buried crater (about 200 km across) near Chicxulub, Mexico.

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Drag the substances into the correct category
water
Reactants Products

oxygen
energy
carbon dioxide
glucose

Answers

Reactants: Carbon Dioxide, Water, Energy
Products: Oxygen, Glucose

Answer: 100% on edge

Reactants:: glucose and oxygen

Products:: carbon dioxide, energy, and water

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