The cores of the terrestrial worlds are made mostly of metal because

Answers

Answer 1
Metals sunk to the centers a long time ago when the interiors were molten throughout

Related Questions

Monosaccharides are also known as what?

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They're also known as the simple sugar units that serve as the basic unit of all carbohydrate structures. The most common monosaccharides in foods are glucose, fructose, and galactose 
they are known as the simplest form of sugar.

Which is a difference between bacteria and viruses that showed that bacteria are living organisms and viruses are not?

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The difference between bacteria and viruses that show bacteria are living and not viruses is that viruses, unlike bacteria, lack what is considered a living organism. For Example, viruses cannot reproduce without the help of a host, and don't use the normal way of cell-division for replication. Unlike bacteria, which can reproduce without the aid of a host.

So basically viruses don't have what it need to be a living organism, like reproducing without and host and aren't in the norm for cell-division for replication. 

Mr. randolph has multiple sclerosis (ms). he experiences muscle weakness, loss of coordination and speech, and visual disturbances that result from the slowdown or interruption of neural transmission. the cause of these symptoms probably involves the degeneration of his _____.

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Final answer:

The cause of Mr. Randolph's symptoms probably involves the degeneration of his myelin sheaths in multiple sclerosis (MS), an autoimmune disease where the immune system attacks the myelin in the central nervous system. This leads to impaired signal transmission and various neurological symptoms.

Explanation:

The cause of Mr. Randolph's symptoms probably involves the degeneration of his myelin sheaths.

The myelin sheaths surround the nerve fibers and play a crucial role in signal transmission in the nervous system. When the myelin sheaths are damaged or destroyed, as in the case of multiple sclerosis (MS), signal transmission is impaired, resulting in symptoms such as muscle weakness, loss of coordination and speech, and visual disturbances.

The degeneration of myelin sheaths in MS is typically caused by the body's own immune system attacking the myelin in the central nervous system. This autoimmune reaction leads to inflammation, demyelination, and disruption of neuronal signaling.

How do sites like wikipedia illustrate an instinct to work together and cooperate?

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The sites like Wikipedia has illustrated an instinct of having people to engage of working together and cooperate because of their motto and the way they deliver information well and easily. They were able to provide principles in which they were able to address that their information are valid and trustworthy. 

Answer:

The websites like Wikipedia and other sites like this shows a principle that is very simple and straightforward "prove to me you are trustworthy and we will cooperate with you" So, this is their simple rule of employment, If you give them correct and valid information, you will become trustworthy to them.

The sites like Wikipedia demonstrated an instinct of engaging people together to co-operate with each other to create a healthy environment for learning and knowledge.

Running water, while occurring infrequently in deserts, _____.

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does most of the erosional work

Running water, while occurring infrequently in deserts, does most of the erosional work.

Running water is the water that flows from water sources such as oceans, streams, rivers, including rain water which transports weathered rocks and other particles. Running water is the most significant agent of erosion. Erosion is a physical process caused by the action of water or wind, and it involves the wearing away of the earth’s surface by removing soil, rock, or other substances from one area on the earth, and moving it to another area.


In living things, most chemical reactions occur near pH 7, and changes in pH do not normally occur. Describe how buffers maintain a pH of 7 in the human body.

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3 systems in the human body work together to regulate the ph. Acid base balance, chemical buffer like bicarbonate,respiratory, lungs regulate the co2 in the body and the urinary system keep the body at about 7.3, only a very small deviation is allowed, 7.5. any higher the person goes through acidosis, which is life threatening.

Answer:

Buffers usually consist of a weak acid and its conjugate base; this enables them to readily absorb excess H+ or OH–, keeping the system's pH within a narrow range. Maintaining a constant blood pH is critical to a person's well-being.

Explanation:

A newly discovered unicellular organism isolated from acidic mine drainage is found to contain a cell wall, a plasma membrane, two flagella, and peroxisomes. based just on this information, the organism is most likely ________.

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a motel eukaryote is the answer
                                                        


which of the following organisms are prokaryotes? plants , animals, fungi, or bacteria ?

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Prokaryotes don't have a nucleus so it's bacteria :)
Fungi and Bacteria are Prokaryotes.

A student views cells from several different prokaryotic and eukaryotic organisms under a high powered microscope. Which of the following statements describes how prokaryotic cells appear different from the eukaryotic cells?
A.The Prokaryotic cells are much larger
B.The Prokaryotic cells do not have nuclei
C.The Prokaryotic cells have mitochondria
D.The Prokaryotic cells have a less distinct shape.

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Prokaryotes such as Bacteria do not have nuclei, the genetic material floats in the Cytoplasm. 

what happen to matter if we add or take away energy?

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If energy is added or subtracted, a state change might occur. However, there will not be a net addition or subtraction of matter: matter is always conserved even through state changes. This can be seen when water freezes or vaporizes, depending on the beginning phase and the amount of energy applied.

Charles darwin was not the only one to conceive of natural selection. who published an article suggesting current species were descended from other species?

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A French biologist named lamarch

In considering the origin of cells, why do biologists focus on the origin of the cell membrane

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In terms of origin of cells, the reason as to why biologists has focused more on the origin of the plasma membrane because the plasma membrane has the capability of regulating of what comes in and out of the cell—like which substances enters and exits in it.

Van der waals interactions may result when ________.

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Van der Waals interactions may result when electrons are not symmetrically distributed in a molecule. Van der Waals forces, in physical chemistry are essentially associated with the name of a Dutch researcher Johannes Diderik van der Waals and indicate the separation of dependent interactions among particles and atoms.

Final answer:

Van der Waals interactions may result when there are weak attractions or interactions between molecules caused by slightly positively charged or slightly negatively charged atoms.

Explanation:

Van der Waals interactions may result when there are weak attractions or interactions between molecules caused by slightly positively charged or slightly negatively charged atoms. These interactions occur due to temporary partial charges that form when electrons in the electron cloud around the nucleus move about unevenly.

This results in fluctuating dipoles that can induce corresponding dipoles in neighboring atoms or molecules, creating an attraction known as London dispersion forces. Additionally, polar molecules can have permanent dipole-dipole interactions, which are a type of Van der Waals force.

These interactions are essential in biological systems, especially in contributing to the three-dimensional structure of proteins which is vital for their function. While they are weaker than other types of chemical bonds, such as ionic, covalent, and hydrogen bonds, Van der Waals interactions play a significant role in the properties and structure of many compounds.

What is the mean of 45, 45, 48, 50, and 52

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sum of all values/ number of values
(45+45+48+50+52)/5
240/5
48

Hope this helped!
48 is the mean because it is in the middle and the mean is the middle number

Traditional medicine that focuses primarily on the treatment of illnesses with medication, rather than illness prevention and wellness, is sometimes referred to as the ___________ model.

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Traditional medicine that focuses primarily on the treatment of illnesses with medication, rather than illness prevention and wellness, is sometimes referred to as the holistic model. This person considers
The person how she interacts with the environment. It is a life style and empowers patient.

Answer:

The given blank can be filled with medical model.

Explanation:

A model of health that suggests that disease is determined and identified via a systematic process of observation, differentiation, and description, in accordance with basic accepted approaches like medical tests, examinations, or an array of symptom descriptions is known as a medical model.  

It is a traditional or conventional method, which focuses mainly on the treatment of illness with medicines, rather than prevention of illness and wellness.  

1.Biomolecules

Biomolecule Elements
A C H O
B C H O and sometimes P
C C H O N S
D C H O N P

Biomolecues are essential to all living things. Which biomolecule is "A" from the above table?
A) lipid
B) protein
C) carbohydrate
D) nucleic acid


Biomolecule Elements
A C H O
B C H O and sometimes P
C C H O N S
D C H O N P

2.Biomolecues are essential to all living things. Which biomolecule is "C" from the above table?
A) lipid
B) protein
C) carbohydrate
D) nucleic acid



3.Who developed the first correct model of DNA?
A) Rosalind Franklin
B) Oswald Avery
C) Hershey and Chase
D) Watson and Crick

Answers

1. The right answer is C) carbohydrate

Lipids is not a correct answer because some like phospholipids can contain phosphorus.

IUPAC defines carbohydrates as a class of organic compounds containing a carbonyl group (aldehyde or ketone) and at least two hydroxyl groups (-OH).

They are so called because their chemical formula was based on the model Cn (H2O) p.


2. The right answer is B) protein

The structure of proteins is the amino acid composition and the three-dimensional conformation of proteins. It describes the relative position of the different atoms that make up a given protein.

Among the amino acids, 19 amino acids contain only four chemical elements: carbon, hydrogen, oxygen and nitrogen; two amino acids additionally contain a sulfur atom, and a rather rare amino acid contains a selenium atom.


3. The right answer is D) Watson and Crick

While many biologists seek to understand how DNA forms copies of itself, James Watson and Francis Crick will be interested in the shape of DNA.

At a congress in Naples, Maurice Wilkins presents the first X-ray photographs of DNA. Despite the very limited clarity of the photo, it is the regular structure of DNA that challenges James Watson ...

The photograph of Rosalind Franklin's X-ray DNA shows that this macromolecule is cross-shaped. After a year and a half of team research, Crick and Watson finally understand that this form of cross reveals that DNA is a double helix.


Logging is the main threat to old growth forests found in the northwestern united states.
a. True
b. False

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Logging is the main threat to old growth forests found in the northwestern united states. 

So it is true.

Why can overfishing lead to ecosystem collapse?

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many mammals rely on fish for food. (apex) earth science [sem 2]

A __________ examines the physiological bases of behavior in animals and humans.

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A biopsychologist studies and examines the physiological basis of behavior in animals and humans. They analyze how the brain, neurotransmitters, and other different aspects of our biology influence our behaviors, thoughts, and feelings.

Prokaryotes reproduce by ___________, which creates _____ exact daughter cell clone(s) of the original parent cell.

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Prokaryotes reproduce by *BINARY FISSION* which creates *2*exact daughter cell clone(s) of the original parent cell.

Which kind of cells can become any type of cell in the body ?

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For a discussion of the different kinds of stem cells, such as embyronic stem cells, adult stem cells, or induced pluripotent stem cells, see Stem Cell Basics. Pluripotent stem cells can give rise to any type of cell in the body except those needed to support and develop a fetus in the womb.

What happens at a convergent boundary apex?

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crust is destroyed (apex) earth secience [sem2]

Answer:

crust is destroyed

Explanation:

If active transport establishes a concentration gradient with the use of atp, then the concentration gradient can be looked at as ________.

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potential energy that can be harnessed when molecules passively diffuse down the concentration gradient. If sodium ions are outside of a cell, they will tend to move into the cell based on both ... The combination of concentration gradient and voltage that affects an ion's ... Primary active transport directly uses a source of chemical energy (e.g., ATP)

Because most plants are able to undergo photosynthesis they do not

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Plants have access to the resources they need to carry out photosynthesis, so they do not need to use chemosynthesis, which is a process that is helpful for organisms such as deep sea plant life that utilizes chemicals rather than sunlight and CO2.

Do you think glucose is being actively transported or transported by facilitated diffusion in this experiment?

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Glucose istransported by facilitated diffusion because no ATP was used during its transport.

Two organic functional groups in a phospholipid molecule

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Phospholipids are molecules that contain lipids and a phosphate group. This is usually found on the lipid bilayer which composes the cell membrane. Cell membrane is an outer covering of the cell which helps regulate the passage of different chemicals and molecules.

Two functional groups

1.       Glycerol

2.       alcohol

The posterior pituitary lobe produces _____, which controls the water-absorbing ability of the kidneys.

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It produces an antidiuretic hormone or ADH. ADH is delivered by the hypothalamus in the mind and put away in the back pituitary organ at the base of the cerebrum. ADH is typically discharged by the pituitary because of sensors that recognize an expansion in blood osmolality or abatement in blood volume.

How does a microscope help scientists observe objects?

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well we know that a microscope is used to see things we cant see like organism's so they can study those small creatures and learn
A microscope is used to see microscopic things , to small for the human eye. Microscopes help scientists observe projects by ,seeing an object up close to see a better perspective of the object. hope I made use of your time and this helped ;)

A person can eat when hunger is absent because:​
a. ​the hypothalamus signals availability of food in the environment.
b. ​the hypothalamus monitors the availability of nutrients.
c. the stomach intensifies its contractions and creates hunger pangs.​
d. ​the conscious mind of the cortex can override body signals.
e. the digestive tract sends messages to the hypothalamus.

Answers

The answer of your question is
D. The conscious mind of the cortex can override body signals.

A person can eat when hunger is absent because  ​the conscious mind of the cortex can override body signals. The outermost layer that covers your cerebrum is called the cerebral cortex. The largest part of your brain is called your cerebrum. Your brain is divided into two halves, or hemispheres, by your cerebrum.

Regarding both sensory and motor function, specific thalamic relay nuclei communicate with the cerebral cortex. As a result, it is believed that the thalamus, with its numerous nuclei connections, is in charge of all individual consciousness contents.

Learn more about the cerebrum cortex, here:

https://brainly.com/question/12993641

#SPJ6

Neurons that carry information away from the central nervous system are called ________ neurons.

Answers

Neurons that carry information away from the central nervous system are called motor (or efferent) neurons.
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