Which statement describes a difference between the lower mantle and oceanic crust? O The lower mantle is closer to Earth's surface than oceanic crust is. O The lower mantle is found closer to sea level than oceanic crust is. O The lower mantle experiences more pressure than oceaníc crust does. The lower mantle has a more tarry consistency than oceanic crust does.
Answers
Explanation:
The difference between the lower mantle and the oceanic crust is first their respective locations, pressure and temperature-- the pressure and temperature increases with depth in the earth this the mantle is more hot and under great pressure than the crust. hope this helps
The statement describes the main difference between the lower mantle and an oceanic crust is that the lower mantle experiences more pressure than the oceanic crust. Thus option C is correct.
What are the lower mantle and an oceanic crust?The lower mantle is the middle layer of the earth which lies in between the crust and the core. This is the middle layer of the earth in which the temp and pressure are so high because of the absence of air. The oceanic crust is the uppermost layer of the earth's crust in which marine plants grow.
The main difference between these two is that the mantle crust experiences more pressure than the oceanic crust because it is present in more depth. As we go in depth of the earth the temp and pressure arise because of the unavailability of oxygen.
So by reading this data the correct statement which exactly describes the difference between the mantle and the oceanic crust is statement C.
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Related Questions
Which organ provides support to the body and is where blood cells are produced?
Answers
Answer:
bones / bone marrow
Explanation:
Answer:
Skeletal system, bone marrow
Explanation:
The body has eleven organ systems. One is the skeletal system, consisting of a skeleton protecting your organs and providing support to your muscles and body. In adults, all of the blood cells are produced in the bone marrow, including red blood cells. Under some abnormal conditions, blood cells may be produced in other organs such as the liver, spleen or lymph nodes.
a horticulturalist wants to produce geraniums with specific characteristics. she knows that the trait of red flowers is governed by the allele r (rr and rr) and the trait of white flowers is governed by the allele r (rr).
a cross of two geraniums yields offspring that are 25% rr, 50% rr, and 25% rr.
which choice best represents the alleles of the parents?
A. Rr and rr
B. rr and rr
C. Rr and Rr
D. RR and rr
Answers
Answer C Rr and Rr
Explanation:
because i did that test hope this helps
Answer: C. Rr and Rr
Explanation:
Took the test
Which statement about van der Waals forces is true?
When the forces are weaker, a substance will have higher volatility.
When the forces are stronger, a substance will have lower viscosity.
When the forces are weaker, the boiling point of a substance will be higher.
When the forces are stronger, the melting point of a substance will be lower.
Answers
The statement about van der Waals forces that is true is that when the forces are weaker, a substance will have higher volatility. So the correct option is A.
What are the van der Waals forces?Van der Waals forces are a type of intermolecular forces that attract or repel each other that will stabilize the union within various molecules. They are not a type of strong union, it is usually weaker than covalent or ionic unions.
There are several van der waals forces:
- Dipole-dipole: this attraction is given when the negative and positive poles of two different polar molecules are going to attract each other.
- Ionic interactions: when a polar molecule is going to induce a dipole in another non-polar molecule that will be transient.
- London forces: when in nonpolar molecules there is a displacement of their electrons generating a dipole.
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Answer:
A: When the forces are weaker, a substance will have higher volatility.
Carbon has an atomic number of 6. Which of the following does the atomic number 6 tell you about carbon?
Answers
Answer:
The atomic number only tells you how many protons an element has, regardless of the amount of neutrons etc.
Carbon 6 therefore has 6 protons, and that's the only thing you can deduce from its atomic number.
what is the presbyopia (senile hyperopia)?
Answers
Presbyopia, also known as senile hyperopia, is a common eye condition that affects people as they age. It occurs when the lens of the eye loses its flexibility, making it difficult for the eye to focus on nearby objects.
This happens because the muscles that control the shape of the lens become weaker and less flexible over time, making it harder for them to adjust the lens to focus on objects up close.
Presbyopia typically begins to develop in people around the age of 40 and gradually worsens over time. Symptoms include difficulty reading small print, eye strain, headaches, and fatigue when doing close work.
Treatment options include corrective lenses, such as reading glasses or bifocals, or surgery, such as LASIK or refractive lens exchange.
It is important to have regular eye exams to detect presbyopia early and to manage any other eye conditions that may be present.
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If the experimental animals in the chamber were engaged in physical activity, how would this change the results of the metabolism experiment
Answers
Answer:
it woud have tow different rezalts
Explanation:
FILL IN THE BLANK. The constricted region of a chromosome is called a ____, and it is used to hold _____.a) centromere; chromatids to each other and to the mitotic spindleb) centrosome; chromatids to eachotherc) chromatid; centromeres to each otherd) centriole; chromatids to the mitotic spindle
Answers
The correct answer is: a) centromere; chromatids to each other and to the mitotic spindle.
The constricted region of a chromosome is called a centromere, and it is used to hold chromatids to each other and to the mitotic spindle during cell division. Chromatids are the replicated copies of a chromosome that remain attached to each other at the centromere until they are separated during mitosis. The mitotic spindle is a structure made of microtubules that helps to separate the sister chromatids during cell division. The centromere plays a crucial role in ensuring the proper segregation of chromosomes during cell division, as it serves as an attachment point for the spindle fibers that pull the chromatids apart.
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Please explain so I can learn how to do questions like this.
Voluntary green power purchases began through a variety of state and utility programs. Between 1999 and 2004, more than 500 utilities in 34 states began to offer their retail customers the option to buy green power. Mandates that required utilities to offer green power products were enacted in 5 states between 2001 and 2003. All but one statement describes a benefit of green power.
A Green power supports the use of renewable energy resources.
B Green power is a cheaper energy resource for the general population.
C Green power reduces greenhouse gas emissions and other pollutants.
D Green power fosters an improved living and community enviorment.
Answers
it is A
The green power supported the resources
13. are the proposed cfc replacements themselves greenhouse gases? why is their emission considered to be less of a problem in enhancing the greenhouse effect than was that of the cfcs themselves?
Answers
Yes, the proposed CFC replacements themselves are greenhouse gases.
The emission of these replacement gases is considered to be less of a problem in enhancing the greenhouse effect than was that of the CFCs themselves due to their shorter lifetimes in the atmosphere and lower global warming potentials.
CFCs have been found to be highly effective at destroying the ozone layer, which protects the earth from harmful UV radiation.
As a result, they have been phased out as refrigerants and other uses. However, the replacements for CFCs, such as hydrochlorofluorocarbons (HCFCs) and hydrofluorocarbons (HFCs), are themselves greenhouse gases.
HCFCs and HFCs have shorter lifetimes in the atmosphere and lower global warming potentials than CFCs, which means that their effects on climate change are less severe.
While they are not ideal replacements, they are currently the best options available for many uses, and efforts are being made to find alternatives that are even less harmful to the environment.
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Using the organisms you identified in part B, create a food web for the ecosystem you chose. Use this sample food web for reference, although your food web will contain fewer organisms. Note that your food web does not have to include images, but you may include them if you choose. However, be sure to include arrows to indicate the direction of energy flow in your food web. Design your food web using any method listed below: Use drawing or flowchart-building tools in a word-processing program. Hand draw your food web, and then take a picture of it. Use a graphic-design program. Using the Insert Image button, insert an image of your food web in the answer space.
Answers
The trophic web is the interaction between different organisms in which there is energy transference. In the attached example, we consider plants, caw, rabbit, bird, eagle, mountainlion, and fungi.
Note: Since you did not detailed the organisms you identified in part B, I will define what a trophic web is, and propose an example for you to understand.
What is a trophic web?The trophic web is the interaction between different organisms involving transference of energy when some of them feed on the other ones.
The ones placed at lower levels pass energy to the ones at the higher levels.
Organisms at each level feed on the preceding one and become food for the next one.
• The first link corresponds to a producer organism -autotroph-.
• The following links are the consumers -heterotrophs-: herbivores and carnivores.
• The last links are the decomposers that degrade organic matter from dead organisms.
Because it is a web, all organisms are in equilibrium until a change occurs. When a sudden change affects any of the involved links, there can be a cascade effect on the web.
Any change in a link population size (increasing or decreasing) will affect the superior links and the immediately anterior link.
Example.
To make the trophic web, first, you need to define the position of each of the organisms on the web.
Producer → this is the autotroph organism that takes energy from the sun or any other inorganic source → An example of this is any plant.
Consumers → heterotroph
⇒ Herbivores → These are the animals that feed on any part of the plants → Let us say we have a caw, a rabbit, and a bird.
⇒ Carnivores → These are the animals that feed on herbivores → Let us say a mountain lion and an eagle.
Decomposer → detritivorous organisms that take energy from dead matter → Fungi
So, our organisms are
plants, caw, rabbit, bird, mountain lion, and eagleFungiPlants directly provide energy to the caw, the rabbit, and the bird.
Plant >> Caw, Rabbit, Bird
The eagle takes energy from the rabbit and the bird.Rabbit and Bird >> Eagle
The mountain lion takes energy from the caw, the rabbit, the bird, and the eagle.Caw, Rabbit, Bird, Eagle >> Mountain lion
Fungi takes energy from dead organic matterPlants, Caw, Rabbit, Bird, Eagle, Mountain lion >> Fungi
You will find an image in the attached files.
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Which statement best explains why it is sometimes challenging to perform a
cost-benefit analysis or a cost-effectiveness analysis when it comes to
actions that involve the environment?
O A. People experience no benefits from protecting the environment,
only costs.
O B. Economics involves only manufactured products and not natural
resources.
O C. Environmental economics does not use the same tools as
traditional economics.
O D. Assigning a monetary value to some ecosystem services can be
difficult.
Answers
Answer: D, Assigning a monetary value to some ecosystem services can be
difficult.
Explanation: ap3x
Answer:
D
Explanation:
I just took the quiz
Which type of plant tissue contains open vessels that transport water, irons, materials and nutrients throughout a plant
Answers
Of course plants don't have hearts, but they do have vessels which transport water, minerals, and nutrients through the plant. These vessels are the vascular tissue.
Why are the DNA molecules considered to be semi-Conservative?
Answers
Answer:
do you have the pic?
Explanation:
Answer:
DNA replication is said to be semi-conservative because of this process of replication, where the resulting double helix is composed of both an old strand and a new strand. ... Semiconservative replication would produce two copies that each contained one of the original strands and one new strand.
Explanation:
what is tissue ? what type of animal tissues ?
Answers
Answer:
Tissue- Tissue is a group of cells that have similar structure and that function together as a unit. A nonliving material, called the intercellular matrix, fills the spaces between the cells. ... There are four main tissue types in the body: epithelial, connective, muscle, and nervous. Each is designed for specific functions.
Explanation:
Animal tissue- There are four types of animal tissues: epithelial tissue, connective tissue, muscle tissue and nervous tissue. Key Outcomes: Understand the differentiation of animal tissues and the relationship between structure and function of the various tissues. Know the location of the various tissues within the animal body.
Which of the following would prevent percolation and reduce
the recharge of water in aquifers?
O A. Planting of forests
O B. Irrigation of crops
O C. Building of roads
O D. Flooding of wetlands
Answers
Answer:
C. Building of roads
Explanation:
this is the correct answer!
An index fossil represents a species that lived during
Answers
Answer:
geologic time
When organisms compete for resources it is considered a limiting factor because ________________________.
A.) there is a limited amount of food and living space available in any ecosystem
B.)abiotic factors such as light, water, and temperature are present
C.)cities, highways, campgrounds, and orchards provide alternate environments for animals and plants
Answers
Answer:
A.)
Explanation:
Ecology if the study of how all of the living and nonliving factors in an environment interact. Put the following levels of ecology in order from the smallest level to the largest level.
Population
Community
Biosphere
Organism
Ecosystem
Answers
Which of the following enzymes unwind and open the DNA double helix at the start of DNA replication?
Group of answer choices
Helicase
Telomerase
DNA Polymerase
DNA Ligase
Answers
Answer:
Helicase
Explanation:
DNA helicase removes the hydrogen bonds that connect the bases of each DNA strand, which allows for the replication of strands
Answer: Helicase
Explanation: I just took a quiz and got it right :)
Ari drew a diagram to show organisms in an ecosystem. What did Ari draw?
Answers
Answer:
food web
Explanation:
Food web is an interconnection and assimilation of different good chains. Many food chains are interlinked a hence a food web is created. This represents what is eaten by which organism. The diagram that Ari had drawn is a diagram of a food chain. The grass is the primary source of food in the food web. Rabbit, Mouse, and grasshopper are the animals that eat the grass. The grasshopper is eaten by a shrew and a mouse. The rabbit and shrew are then eaten by the fox. A mouse is eaten by a snake and a fox. This is the diagrammatic representation of a food web.
Answer:
food web
Explanation:
the microbiome has both associated benefits and risks. what are some of the risks associated with the oral microbiome?
Answers
The oral microbiome, while beneficial in many ways, can also pose certain risks. Some of the risks associated with the oral microbiome include dental caries (cavities), periodontal diseases, and oral infections.
The oral microbiome consists of a diverse community of microorganisms that reside in the mouth. While these microorganisms play a crucial role in maintaining oral health, an imbalance or dysbiosis in the oral microbiome can lead to various risks and health problems.
One of the significant risks associated with the oral microbiome is dental caries, commonly known as cavities. Certain bacteria in the oral microbiome, such as Streptococcus mutans, can metabolize sugars and produce acids that erode tooth enamel, leading to the formation of cavities.
Periodontal diseases, including gingivitis and periodontitis, are another risk associated with the oral microbiome. These conditions occur when the balance of microorganisms in the oral cavity is disrupted, leading to inflammation and damage to the gums and supporting structures of the teeth.
Oral infections, such as oral thrush (caused by Candida overgrowth) and oral herpes (caused by the herpes simplex virus), can also be risks associated with the oral microbiome. These infections can cause discomfort, pain, and other oral health issues.
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which cells of the highlighted structure produce pancreatic juices? hepatocytes alpha beta acinar
Answers
The correct answer is option D.
The cells of the highlighted structure that produce pancreatic juices are Acinar cells.
Acinar cells are the cells of the pancreas that secrete pancreatic juice which contains enzymes required for the digestion of carbohydrates, proteins, and fats.
What is the pancreas?
The pancreas is an organ that is located behind the stomach. It has an endocrine function because it releases hormones directly into the bloodstream. Insulin and glucagon are the two main hormones that the pancreas produces that help regulate blood sugar levels.
The pancreas also has an exocrine function, which means it secretes digestive enzymes into the small intestine to help digest food. The cells that secrete pancreatic juice are called acinar cells, which are found in the pancreas.
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Solutions that have more OH- than H+ ions are
Answers
Answer:
I believe the answer is alkalines
the had the greatest number of the most negative of tree ring anomalies and corresponding temperature anomalies. a. 1600s b. 1700s c. 1800s d. 1900s
Answers
According to Table 1, the 1600s had the greatest number of the most negative 5% of tree-ring anomalies and corresponding temperature anomalies, option A.
Tree rings may show variations in the soil moisture that the trees are growing in, among other things. In order to better comprehend contemporary climate change, particularly a weather anomaly that became apparent in the middle of the 20th century, scientists have now gathered 600 years' worth of this data.
The fresh data are included in the most recent South American Drought Atlas (SADA), which displays moisture fluctuations over the previous six centuries and is supported by other historical records. During the 1930s, the time intervals between severe droughts have increased, and since the 1960s, one drought per ten years has been seen.
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Complete question:
According to Table 1, the ________ had the greatest number of the most negative 5% of tree-ring anomalies and corresponding temperature anomalies.
a. 1600s
b. 1700s
c. 1800s
d. 1900s
Consider nutrient cycling through the biogeochemical processes that occur. How do the different cycles (e.g. carbon, water, nitrogen, phosphorus) interact with one another and their balance. What happens if one cycle does not function? How does that impact ecosystem function? What can tip the cycles one way or another excess carbon, for example.
Answers
The different biogeochemical cycles, such as the carbon, water, nitrogen, and phosphorus cycles, interact with one another and maintain a delicate balance in ecosystems.
These cycles are interconnected, with the products and byproducts of one cycle serving as inputs for another. For example, plants take in carbon dioxide during photosynthesis, releasing oxygen as a byproduct, which is then utilized by animals during respiration.
Nitrogen-fixing bacteria convert nitrogen gas into usable forms for plants, while decomposers break down organic matter and release nutrients like phosphorus back into the soil.
If one cycle does not function properly, it can have significant impacts on ecosystem function. For instance, if the nitrogen cycle is disrupted due to a lack of nitrogen-fixing bacteria, plants may struggle to acquire sufficient nitrogen, leading to stunted growth and reduced productivity.
Similarly, a disruption in the phosphorus cycle can limit the availability of phosphorus, which is vital for energy transfer and DNA synthesis in organisms.
These imbalances can cascade through the food web, affecting the abundance and diversity of species, nutrient availability, and overall ecosystem stability.
Excessive inputs of certain elements, such as carbon, can tip the cycles and disrupt the balance. For example, the burning of fossil fuels releases excessive carbon dioxide into the atmosphere, leading to an increase in greenhouse gas concentrations and contributing to climate change.
This excess carbon dioxide can alter the carbon cycle by influencing the rate of photosynthesis and respiration in plants, affecting carbon storage in forests and oceans, and ultimately impacting the climate system.
To maintain the balance and health of ecosystems, it is crucial to understand and manage these biogeochemical cycles, minimizing disruptions and promoting sustainable practices.
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PLEASE help! Which of the following pollutants is NOT an example of bioaccumulation?
A: mercury
B: DDT
C: lead
D: nitrogen
E: cyanide
Answers
Answer:
B-DDT
Explanation:
Because that's not example of bioaccumulation
Among the given ones, the pollutant nitrogen does not comes under bioaccumulation. The correct option is D.
What is bioaccumulation?Bioaccumulation is the process by which pollutants (metals) enter the food chain.
It refers to the accumulation of contaminants in biological tissues by aquatic organisms from sources such as water, food, and suspended sediment particles.
One example of bioaccumulation is the buildup of car emission chemicals in birds and other animals, as well as mercury in fish.
Bioaccumulation is the gradual accumulation of substances in an organism, such as pesticides or other chemicals.
Toxins build up or accumulate in a food chain, which is known as bioaccumulation.
The animals at the top of the food chain suffer the most. Plants absorb trace amounts of toxic substances, which are frequently pesticides or pollution from human activity.
Thus, the correct option is D.
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True or false: Over 200 million years ago, Australia separated from Antatica and moved north.
Answers
Answer:
true
Explanation:
Answer:
False
Explanation:
Australia began to separate from Antarctica 85 million years ago.
the cellular machine comprised by rna polymerase, dna template and a nascent mrna is referred to as?
Answers
RNA polymerases are the enzymes involved in transcription. RRNA makes up the majority of a RNA in cells; mRNA makes up about 3-5% of a cell's total RNA.
To create a fresh, complementary RNA molecule, RNA polymerase employs a single Stranded dna (the template to make) as a template. Termination is the procedure that puts a stop to transcribing. The RNA sequences that indicate that the translation is finished rely on termination. Where does the transcription of a gene to mRNA by RNA polymerase start? It begins following a certain nucleotide pattern known as a promoter. What role does RNA polymerase play? The expanding strand of RNA receives nucleotides as the double helix is unwound. RRNA genes are transcribed by RNA polymerase I, mRNA, miRNA, snRNA, or snoRNA genes are transcribed by RNA polymerase II, while tRNA & 5S rRNA genes are transcribed by RNA polymerase III. Answer and justification Comparisons between DNA and RNA A Template dna strand is needed for polymerases.
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Eukaryotic cells that contain more than two sets of genetic information are referred to:_________
a. asmitotic.
b. diploid.
c. homologous.
d. polyploid.
e. haploid.
Answers
Eukaryotic cells that contain more than two sets of genetic information are referred to diploid (option B).
What is a diploid cell?A diploid cell is a cell, having a pair of each type of chromosome, one of the pair being derived from the ovum and the other from the spermatozoon.
On the other hand, a haploid cell is a cell having a single set of unpaired chromosomes.
Most somatic cells of higher organisms are diploid in number, meaning that they contain two sets of chromosomes in their cells.
Therefore, eukaryotic cells that contain more than two sets of genetic information are referred to diploid.
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HELP PLSSSSSSSSSssssssss
Answers
Explanation: Rider A would have potential energy, not kinetic