explain the bone structure

Answers

Answer 1

Answer:

Bones are organs composed of hard living tissue providing structural support to the body – it's scaffolding. It is a hard matrix of calcium salts deposited around protein fibers. Minerals make bone rigid and proteins (collagen) provide strength and elasticity. ... The outer layer of bone is called Cortical bone.


Related Questions

what type of weather is typically associated with the air pressure system near Salem

Answers

Answer:

According to common weather maps of the region surrounding Salem, Massachusets, the weather typically associated with the air pressure system is rain.

Explanation:

Given the nature of warm air and its tendency to rise, warmer regions tend to fall under the low-pressure system category. These systems, due to the movement of the warm air, have lower pressure at their center than in the areas surrounding them. As the wind blows towards the low-pressure air systems, the cooler and warmer air meet within the atmosphere, which causes the water vapor to condense and form clouds. Oftentimes, these clouds then precipitate, causing rain.

A person who has type AB blood:

Answers

Answer:

B-positive (B+): 9%

AB-positive (AB+): 4%

A-positive (A+): 30%

An man about 80 years old, lives alone. He looks very weak and undernourished. His lower limbs bones are tender and thin. Due to poor diet and loneliness, he lacks the essential vitamins and minerals for his bone formation. Explain bone formation (ossification) , and bone marrow formation which this man is lacking.​

Answers

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All bone formation is a replacement process. During development, tissues are replaced by bone during the ossification process. In intramembranous ossification, bone develops directly from sheets of mesenchymal connective tissue. In endochondral ossification, bone develops by replacing hyaline cartilage, bone formation, also called ossification, process by which new bone is produced. ... Soon after the osteoid is laid down, inorganic salts are deposited in it to form the hardened material recognized as mineralized bone. The cartilage cells die out and are replaced by osteoblasts clustered in ossification centres.

Hope it helps you

Researchers identify a gene in cockroaches that is responsible for their ability of nerve regeneration. How might it be possible for this gene to be used in treating human paralysis?

Answers

This gene could be analyzed to determine its homology level with a human gene, which then could be restored in its normal expression. This strategy can restore the normal phenotype in defective human cells.

Sequence homology, which refers to the level of evolutionary relationship among genetic or proteins sequences, is a fundamental subject matter to determine gene function.

From this approach (sequence homology search), researchers can identify valuable genes involved in diseases in which the restoration of their normal expression levels can be used to restore the normal phenotype in defective cells.

In this case, the identification of a gene in cockroaches that is responsible for nerve regeneration could be used for subsequent identification of a human homologous gene sequence, which then can be restored in order to treat human paralysis.

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What do you think would happen if the mitotic spindle did not function correctly?

Answers

Answer:

The presence of extra centrosomes leads to the formation of a multipolar mitotic spindle, which, if not corrected prior to anaphase, results in the segregation of chromosomes into more than two daughter cells.

Explanation:

Which side is hypertonic ? A or B ?
Which side will gain water
What is c ?

Answers

Answer:

1-b

2-b

3-phospholipid bilayer

B side is hypertonic. It will gain water. C is Phospholipid layer.

What is Hypotonic Solution?

A hypotonic solution is a type of solution that has a lower osmotic pressure than any other solution to which it is compared. It is a solution in which a small amount of solute passes across a semipermeable membrane compared to the amount of solute in the other solution.

If the solute concentration outside the cell is lower than inside the cell, these solutes cannot cross the membrane, so the solution is hypotonic to the cell.

The cell membrane consists of a phospholipid bilayer containing embedded proteins present between these two solutions where a hypotonic solution has a relatively low concentration of solutes.

Thus, B side is hypertonic. It will gain water. C is Phospholipid layer.

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L 3.2.2 Quiz: Matter and Energy
Question 5 of 10
Which substance is an example of organic matter?
A. Carbon dioxide
B. Oxygen
C. Salt
O
D. Sugar

Answers

Answer:

D

Explanation:

An example of organic matter is sugar

D is the correct answer. Sugar is an example of Organic matter.

Carbon dioxide is inorganic. Oxygen is neither while salt is inorganic.

explain why calcuim and phosphorus from bone are important to the human body

Answers

Answer:

the mineral calcium helps your muscles, nerves, and cells work normally. Your body also needs calcium (as well as phosphorus) to make healthy bones. Bones are the main storage site of calcium in the body

explain four example of cybercrime​

Answers

Answer: Hacking.

XSS: Cross-Site Scripting.

Denial-of-Service Attack.

Phishing Scam.

Spamming.

Explanation:

The movement of the outer core is
important to life because...

Answers

Answer:

he movement causes powerful electric currents to develop in the liquid iron itself.

Explanation:

Which method of timber harvesting removes all trees from the harvest area?

Answers

Clear-cutting is the most common method of timber removal. Clear-cutting removes all the trees in a given area, often by using large machinery. From an economic standpoint, the benefit of this approach is that humans can harvest maximum timber with minimal energy and cost.

Hemolysis is:

O A) when a red blood cell is in a hypertonic solution and the cell ruptures

O B) when a red blood cell is in a hypotonic solution and the cell ruptures

O C) when a red blood cell is in a hypotonic solution and the cell shrinks

O D) when a red blood cell is in a hypertonic solution and the cell shrinks

Answers

A) When a red blood cell is in a hypertonic solution and the cell ruptures

if bird cannot migrate what it does to survive

Answers

If a bird can not migrate, it must adapt to thrive on foods that are available in different seasons.

how do i write an email to apply for university

Answers

Answer:

Well personally I haven't written an email to apply for a university but i'll try to help.

Composing your Email

1. Find your admissions officer

If possible, locate the email of the admissions officer for your region. For example, if you live in Florida, you want to target the email to the admissions officer that reads for the Southeast. It is important to locate the admissions officer for your region since they will be the person reading your college application when you submit it. They should be familiar with your name and remember you positively.

2. Address the admissions officer properly

Begin your email by addressing the admissions officer in a kind, proper manner. Don’t use slang or abbreviations that you might use with your peers while texting. Your writing should highlight your maturity and ability to communicate in a professional setting.  

“Good morning, Ms. Smith,”

“Hello, Mr. Johnson,”

3. Introduce yourself

Admissions officers receive hundreds of emails a day from prospective students so a concise email that simply gets to the point saves time and energy. Therefore, you shouldn’t spend a great deal of time introducing yourself. You are unlikely to increase your probability of acceptance by sending an email detailing your life’s accomplishments. Instead, write a brief sentence or two, providing your name and any relevant background information that may inform their answer.

“My name is Hayley Hall and I am applying to Pomona College in the Fall of 2020. I am particularly interested in majoring in Engineering.”

4. Be specific

Once you have provided your name and relevant information, ask specific questions. Don’t ask generic questions you should already know the answer to from your college search.

Avoid questions like:

“What’s the acceptance rate for UCLA?”

“What does Yale look for?”

“How much does each credit hour cost for in-state students?”

Colleges provide lots of general information about the school on their website. Search their website thoroughly before reaching out. If you ask for information that the college already provides, it might signal to an admissions officer that you haven’t done your due diligence looking for information on your own.

Instead, ask more detailed questions like:

“What types of companies does the College of Engineering have partnerships with?”

“When do most students start performing research?”  

“What would you say students are most excited about on campus?”

These kinds of questions prove that you have done your research but want more in-depth information about their university. Your curiosity will bode well with an admission officer. It will signal you are seriously considering their university. Their answers will help you make informed decisions about the schools you are considering and potentially provide information for your “Why This College” essay!

5. Do not be afraid to ask questions about your required materials

You can also email admissions officers to confirm they have received all of your materials. For example, if you have sent in your SAT/ACT scores but haven’t received a confirmation email from the school that they received it, you can follow up with the school. The email should be detailed, concise, and professional.

Which of the following examples best describes a disturbance that is likely to result in significant, long-lasting changes to an ecosystem?
Choose 1 answer:
Choose 1 answer:

(Choice A)
A
A frost in late spring kills some of the earliest budding plants and flowers in a field.

(Choice B)
B
Tens of thousands of geese rest for a week at a large lake during their annual migration.

(Choice C)
C
The failure of a 60-year-old beaver dam floods a downstream meadow.

Answers

i would say C. resting isnt really going to change anything, they are still migrating and only SOME of the budding plants were killed not all.

The failure of a 60-year-old beaver dam floods a downstream meadow  best describes a disturbance that is likely to result in significant, long-lasting changes to an ecosystem

It cause immense damage to the property, habitats due to water flooding over them.

What is a dam?A dam is a barrier that stops or restrict the flow of surface water or underground streams.It is build across the stream or river to hold water back.It can used to store water, control floods and generate electricity.

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How the plants survive in tropical rainforest?

Answers

Answer:

The plants have adapted to the rainforest environment by growing their roots deep into the ground and extending their leaves high into the tree canopy to receive sunlight for photosynthesis. Mant plants have adapted to the immense amount or water they are exposed to in their environment.e

brian period occurred approximately 500 million years ago, and we are currently in the Quaternary period.
PERIOD
ANIMALS
PLANTS
Humans
Flowering
plants
Mammals
Birds
Ginkos
Quatemary
Tertiary
Cretaceous
Jurassic
Triassic
Permian
Pennsylvanian
Mississippian
Devonian
Silurian
Ordovician
Cambrian
Reptiles
Pines
Amphibians
Club mosses
Horsetail rushes
Fems
Animals with shells
Fishes
Based on the chart, describe the trends that can be observed in animal and plant fossils as they evolved over time.
Use evidence from the chart to support your conclusions.
B IV x x Font Sizes
А 三星 三 三
А

Answers

Quaternary is the correct answer

57- From classes of Phylum: Annelida
A- Cestoda
B- "Trematoda
C- Myriapoda
D- Oligochnota​

Answers

Answer:

D- Oligochnota.

......

which of the following can cause polyploidy
A : a single egg fertilized by two sperm
B: a diploid egg being fertilized by a normal sperm
C: a normal egg being fertilized by a diploid sperm
D : all of the above ​

Answers

Explanation:

a polypiody is a condition that has more than 2 sets of chromosomes. common in plants..

Which three structures are found in both prokaryotic and eukaryotic cells?

A. cytoplasm, endoplasmic reticulum, DNA
B. ribosomes, DNA, cytoplasm
C. nucleus, cell wall, cell membrane
D. cell membrane, endoplasmic reticulum, ribosomes

Answers

The answer is B. Prokaryotes do not have endoplasmic reticulum, cell wall, cell membrane or a nucleus. But they do have DNA (just not in a membrane bound nucleus), ribosomes, and cytoplasm.

calculate the magnification of the drawing below, If the length of the leaf is 30mm and the length of the drawing made was 100mm​

Answers

Answer:

10

Explanation:

The magnification of the drawing made was 10 because it had a length of 100mm and originally had a length of 30mm. It can also be said that the magnification is 3 since dividing by the original length (30) we get: 100/30 = 3.

which describes fat?
A. a lipid that stores energy
B. a nucleic acid that directs cell function
C. a protein that speeds up a chemical reaction
D. a carbohydrate that produces energy​

Answers

A lipid is fatty acids which falls under fat , and lipids store energy hence A being the answer

Answer:

The answer is A

Explanation:

a lipid that stores energy

Hey, I need help with this question:

Answers

Answer:

(D) two different species on the basis os reproductive behaviour

BRAINLIST PLS

Help please, am I even doing this right?

Answers

Answer:

Looks good to me :)

Explanation:

When an unbalanced force acts on an object, in which direction does the object
move?
The object moves in the direction of the net force.
The object moves in the direction of the smaller force.
The object moves in the opposite direction of the unbalanced force.
The object moves in the direction of the unbalanced force.

Answers

Answer:

Explanation:

The object moves in the direction of the net force.   It depends on what you have been told. I would say that A is the correct answer.

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|

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A

Both the forces shown above are unbalanced. But the object will not move in the direction of either of them. The net force is somewhere between the two given forces and that's the direction of the motion.

If each of these food chains start with 10,000 grams of phytoplankton, how much reaches the highest trophic level in each food chain

Answers

Energy is transferred from one trophic level in a food chain to another. However, not all the energy available at a trophic level is transferred to the next.

Only about 10% of the energy in the lower trophic level gets to the immediate higher trophic level and the rest is lost as metabolic heat.

Thus, if a food chain starts with 10,000 grams of phytoplankton, the quantity that will get to the highest trophic level would depend on the number of intermediate trophic levels in between the lowest and the highest.

For every step the energy is transferred up the trophic level in the food chain, 90% of it is lost.

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Mark and Michelle both have dark hair, which is a dominant trait. But their first child is blonde. Which is the most likely explanation

Answers

Both parents have a recessive blonde allele that got passed on to their child.

Another gene caused the alleles for brown hair to deactivate.

It's not possible--Mark can't be the real father.

One of the two has a blonde allele that is dominant in the child.

Answer:

They are heterozygous for the dark hair.

Matter begins to move through this food chain when the?

Answers

Answer: When the energy of the sun is captured by plants.

The trapezius is a(n) _____ to the pectoralis major.

Answers

Answer:

complement

Explanation:

The trapezius is a complement to the pectoralis major.

What is Trapezius?

The trapezius may be characterized as one of the widest and most superficial muscles that are located in the upper back and trunk region. It is triangular in structure, wide, and thin that encircles the upper back of the shoulders and neck.

While the pectoralis major is the most superior and largest muscle that is located within the region of the anterior chest wall. This muscle is thick, fan-shaped in appearance positioned beneath the breast tissue, and constructs the anterior wall of the axilla.

Both of these muscle types complement each other in every aspect such as location, structure, appearance, etc.

Therefore, The trapezius is a complement to the pectoralis major.

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what is the cytoplasm job in the factory?

Answers

Answer:

factory floor!

Explanation:

function:

Contains the organelles; site of most cell activity.

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What do you usually do when you come across an unfamiliar word in a text? Check any that apply. Look up the word in a printed dictionary look up the word online ask a teacher or other adult for help skip over the word and keep reading try to figure out the meaning of the word by using clues in the text. PLEASE HELP ME ILLMARK BRAINLIEST A consumer or producer who does not pay for use of a nonexclusive good but expects others to pay is known as a: Group of answer choices free rider. price setter. fringe element. None of these have you seen a chimpanzee?(present perfect tense) What's William Shakespeares most famous poem? the diagonal of a cube is root 12. What is the edge? 1 year = 12 months3/4 year = Is the point (4, -15) on the line y = -3x - 3 The need for change to automated sales at bergmans most likely arises from a(n) ______ force. Elige la respuesta que mejor describe cmo difieren el Monte Everest y el Valle de la Muerte.El Monte Everest es plano y el Valle de la Muerte es el punto ms alto de la Tierra.O El Monte Everest es el punto ms alto de la Tierra, y Death Valley es una montaa ms pequea.El Monte Everest es el punto ms alto de la Tierra, y el Valle de la Muerte es relativamente plano. Which statement describes how basic DNA technology is used to construct recombinant DNA molecules? (10 points)A. Scientists use a gel-filled electrical chamber during gel electrophoresis to isolate DNA fragments.B. Scientists use restriction enzymes to cut DNA molecules and ligation to paste DNA fragments together.C. Scientists use heat and bacterialtransformation to add novel DNA into bacterial cells.D. Scientists use high temperatures to separate strands of DNA molecules during polymerase chain reaction. Sophie-Louise and her friend Paul will go to restaurant to sample one of the local specialities, a soupwith bacon.O A. vraiO B. faux Everyday arguments are enthymematic because they depend on: claims and evidence.major and minor premises.warrants.unstated premises. Please help me calculate this question along with the equation How Many Solutions Does 6 + [tex]\frac{x}{5}[/tex] = [tex]\frac{x}{5}[/tex] - 5 - [tex]\frac{3x}{10}[/tex] Have?A. One solutionB. Two solutionsC. No solutionsD. Infinitely many solutions A specific statement of the organization's purpose, its products, and its customers is called a mission statement.Select one:TrueFalse . A load of 250 kg is hung by a cranes cable. The load is pulled by a horizontal force such that the cable makes a 300 angle to the vertical plane. If the load is in the equilibrium, calculate the magnitude of the tension in the cable. Dan earns 299 over the course of a five-day week. How much is that per day? What are an employees legal rights that would prevent an employee from terminating an employee? HELPS PLS DUE IN 5 min:( ILL MARK BRAINIEST!!! Where is the magnetic field in a hair dryer