which type of bone tissue forms the rigid outer surface of bones and is covered by periosteum
Answers
The type of bone tissue that forms the rigid outer surface of bones and is covered by periosteum is compact bone tissue, also known as cortical bone.
Compact bone tissue is dense and strong, and it makes up the outer layer of bones. It is composed of cylindrical structural units called osteons, which contain concentric layers of mineralized extracellular matrix surrounding a central canal that houses blood vessels and nerves.
Periosteum is a dense layer of connective tissue that covers the surface of bones and is important for bone growth and repair. It contains blood vessels, nerves, and stem cells that can differentiate into bone-forming cells called osteoblasts.
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Related Questions
What does active range of motion prevent
Answers
Engaging in active range of motion exercises can help prevent muscle and joint stiffness, contractures, and blood clots, all of which can have serious consequences for your health and well-being. Active range of motion (AROM) refers to the ability of a joint to move through its full range of motion actively, without assistance. Engaging in exercises that promote AROM can help prevent a variety of conditions and complications.
AROM exercises can help prevent muscle and joint stiffness, which can occur after an injury, surgery, or prolonged inactivity. By regularly engaging in AROM exercises, you can help maintain the flexibility of your muscles and joints, preventing them from becoming stiff and painful.
AROM exercises can help prevent the development of contractures, which are abnormal, permanent shortening of the muscles and tendons around a joint. Contractures can occur after prolonged immobility or as a result of neurological conditions such as stroke or spinal cord injury. By engaging in AROM exercises, you can help maintain the normal length and function of your muscles, reducing the risk of contracture formation.
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You are studying a population of Dlugosch’s Small Octopus that has been suffering from a skin disease. In your work, you find that some individuals have more resistance (immunity) to the disease than others. You remember learning about life history trade-offs in your Ecology class, and you hypothesize that immunity trades off with investments in other major life history traits in the octopuses. You decide to design a study to test whether higher immunity leads to a lower number of eggs produced by females.
9. State a prediction for what the results of your study would look like if they support the hypothesis given in the Mission.
Make a figure of results that would be consistent with that prediction:
Label y axis with the variable that should be on the
Label x axis with the variable that should be on the
Draw results bars or lines consistent with your prediction
If the infection reduces the population size of the octopus, would you predict an r or a K strategy would be more likely to evolve (based on what we discussed in class)? Explain why that life history strategy would be favored in a small population, and give at least two traits associated with the strategy that you predict.
Answers
If higher immunity leads to a lower number of eggs produced by females in Dlugosch's Small Octopus, then there will be a negative correlation between immunity level and egg production.
A K approach would be more likely to develop if the illness causes the octopus population to decline. Resources are few in a tiny community, therefore long-term stability and survival are prioritized over rapid population expansion. The K approach emphasizes having fewer kids while allocating more resources to ensuring their survival and welfare. In a small population, the following two characteristics connected to a K strategy might be more prevalent:
Increased parental care: Parents invest more time and resources in raising a smaller number of offspring to increase their chances of survival and reproductive success.
Delayed maturation: Individuals take longer to reach reproductive maturity, allowing them to invest more time in growth, development, and building up resources before reproduction.
These traits help ensure the survival and success of the limited number of offspring in a small population, aligning with the K-selected life history strategy.
In this figure, the y-axis represents the number of eggs produced by females, and the x-axis represents the immunity level of the octopuses. The bars or lines would show a decreasing trend as the immunity level increases, indicating a negative relationship between immunity and egg production.
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do sponges have cells
Answers
Answer:
no, they dont
Explanation:
how would a sponge have cells? so no
Answer:
Yes?
Explanation:
Generally all living things have cells. They have no organs though.
A frogs skin cell contains 8 chromosomes. It undergoes mitosis and divides to form two skin cells. How many chromosomes are in each cell?
Answers
A frogs skin cell contains 8 chromosomes. It undergoes mitosis and divides to form two skin cells and they contain 8 chromosomes in each cell.
Chromosomes are thread-like structures made of DNA and protein that carry genetic information. They are located in the nucleus of eukaryotic cells and contain the cell's genetic material in the form of genes. Chromosomes come in pairs and each parent donates one set of chromosomes to their offspring.
After mitosis, each daughter cell will have the same number of chromosomes as the parent cell. Therefore, each skin cell that is produced from the division of the original frog skin cell will also contain 8 chromosomes, since no chromosome is lost or gained during mitosis. So, there will be 8 chromosomes in each cell.
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Which of the following sentences are the best short summary for a flashlight?A A flashlight flashlight has has many many uses.uses.A A flashlight flashlight is is able able to to create create light light energy, energy, which which allows allows us us to to see see in in the the dark.dark.A A flashlight flashlight is is a a necessary necessary tool tool for for every every household.household.A A flashlight flashlight is is a a portable, portable, battery-battery-operated operated device device that that makes makes light.light.
Answers
Answer:
The last one
Explanation:
Flashlight is a portable, battery-operated device that makes light.
A flashlight is a portable, battery operated device that makes light is the best short summary for a flashlight.
What are the features of flashlight?A flashlight or torch is a portable hand-held electric lamp. Formerly, the light source typically was a miniature incandescent light bulb, but these have been displaced by light-emitting diodes since the mid-2000s.
The three main features for a flashlight are Dimensions, Battery, and Light. Each of these characteristics are very important when it comes to selecting a flashlight.
Flashlights are used as a light source outdoors, in places without permanently installed lighting, during power outages, or when a portable light source is needed.
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describe three cardiac effects of increased sympathetic activity, and of increased parasympathetic activity
Answers
Three cardiac effects of increased sympathetic activity include increased heart rate, increased contractility, and vasoconstriction. On the other hand, three cardiac effects of increased parasympathetic activity include decreased heart rate, decreased contractility, and vasodilation.
1. Increased sympathetic activity:
- Increased heart rate: Sympathetic stimulation leads to the release of norepinephrine, which binds to beta-1 adrenergic receptors in the heart, causing an increase in heart rate.
- Increased contractility: Sympathetic activation enhances the strength of cardiac muscle contractions, increasing the force of each heartbeat and cardiac output.
- Vasoconstriction: Sympathetic nerves release norepinephrine, which causes constriction of blood vessels, leading to increased peripheral vascular resistance and blood pressure.
2. Increased parasympathetic activity:
- Decreased heart rate: Parasympathetic stimulation, mediated by the vagus nerve, releases acetylcholine that binds to muscarinic receptors in the heart, slowing down the heart rate.
- Decreased contractility: Parasympathetic activation decreases the force of cardiac muscle contractions, resulting in a decrease in cardiac output.
- Vasodilation: Parasympathetic activity causes relaxation of blood vessel smooth muscles, leading to vasodilation, decreased peripheral vascular resistance, and lower blood pressure.
These effects of increased sympathetic and parasympathetic activity play crucial roles in regulating cardiac function and maintaining cardiovascular homeostasis in response to various physiological demands.
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help please n thx <3
Answers
Answer:
The answer is The cell that contains the nucleus.
what is neuro immune dysfunction syndrome? can it be cured?
Answers
Answer:
it can be partially cured
Explanation:
its like cancer u can cure it to stop spreading kinda but you can still have a high high risk or getting it agaian and theres a process
The model shows a portion of a DNA strand. Which base pair sequence below best corresponds with the nucleotides provided?
Answers
Answer:
From top to bottom the answers are: T,C,A,G
Explanation:
Due to the rule, A is always paired with T and vise versa, and G is always paired with C and vise versa
The base pair sequence that best corresponds with the nucleotides provided as AGTC is TCAG.
What is DNA?DNA is a biological molecule that stores genetic information in living cells.
DNA is a double stranded molecule that is made up of monomers called nucleotides. The four nucleotides that make up the DNA are as follows:
AdenineGuanineThymineCytosineAccording to this question, the following DNA sequence is given: AGTC, therefore, the sequence of the complementary strand is as follows: TCAG.
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explain the role of abiotic in maintaining the balanve of ecosystem
Answers
Answer:
Abiotic factors are the non-living parts of the environment that have a major influence on living organisms. They can help determine things like how tall trees grow, where animals and plants are found, and why birds migrate. The most important abiotic factors include water, sunlight, oxygen, soil and temperature.
Explanation:
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Phineas and Ferb build a flying machine. They accelerate into the air in a
straight line, going from 0 m/s to 30 m/s in 3 s. Find their average
acceleration.
Answers
10
30 dived by 3 = 10
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Please help ASAP
Why do sedimentary rocks form where they do?
Answers
Answer: Common sedimentary rocks include sandstone, limestone, and shale. These rocks often start as sediments carried in rivers and deposited in lakes and oceans. When buried, the sediments lose water and become cemented to form rock
Explanation:
To become a virus, you only need 2 parts. One is Genetic Material or Genome (DNA or RNA) to
replicate it and the
or Protein Coat which protects the genome from digestive
enzymes. (Answer in lowercase) *
Answers
Answer: true
Explanation:
HELP PLEASE!!!! growing on
With secondary
Primary succession begins with plants like
succession is already present.
lichens...bare rock...soil
moss...soil...a habitat
dandelions...bare rock...a habitat
palm trees...soil...an animal
Answers
Answer: Is A
Explanation:
Lichens break down rock from there the soil start to create life i don't how to explain it
When sugar is produced in the leaves
due to photosynthesis, they can be transported to the roots. In this example, what is the sugar sink?
A. the leaves
B. the roots
C. the sun
Answers
Which circumstance can cause positive
population growth?
A.
The immigration rate is lower than the death rate.
© B. The death rate is higher than the birthrate.
O C. The birthrate is higher than the death rate.
• D. The emigration rate is the same as the birthrate.
Answer is birthrate D
Answers
Answer:
C
Explanation:
When the birthrate is higher than thedeathrate
some animals can have ringworm infection but not show any signs true or false
Answers
True, it is possible for some animals to have a ringworm infection but not show any signs.
Ringworm is a fungal infection that affects the skin, nails, and hair of animals and humans. Ringworm is caused by various types of fungi that are classified as dermatophytes, and it is commonly transmitted through direct contact with an infected individual.
Ringworm Symptoms:
The symptoms of ringworm are dependent on the type of fungi causing the infection, the severity of the infection, and the animal's immune system's strength. Ringworm symptoms usually appear 10 to 14 days after exposure and can last for several weeks to months. Some common symptoms of ringworm infection include;
ItchingRed and scaly patches - Patches that are shaped like a ringBrittle and discolored nailsHair lossCircular lesions with crusty edgesRingworm Treatment:
Treating ringworm requires a combination of medication, hygiene, and environmental control. The medication used to treat ringworm can either be topical (applied directly to the skin) or systemic (taken orally or by injection). The duration of the medication used to treat ringworm varies depending on the severity of the infection, the animal's immune system's strength, and the type of fungi causing the infection.
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The purpose of the _______ element is to group together a set of one or more <h1> elements so that they're treated as a single heading
a.div elements b.privacy policy, terms, and conditions c. header and footer information
d.<article> and <section> elements
Answers
The purpose of the <hgroup> element is to group together a set of one or more <h1> elements so that they're treated as a single heading.
The hgroup element mainly represents the heading of a section. The element which is used to group a set of h1 – h6 elements when the heading has consisting of multiple levels, such as subheadings, alternative titles, or taglines.
A header element usually contain the section's heading (an h1–h6 element or an hgroup element), but this is not required. The header element is even used to wrap a section's table of contents, a search form, or any relevant logos. The hgroup element represents the heading of a section.
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The correct question is given below---
The purpose of the _________ element is to group together a set of one or more <h1> through <h6> elements so that they are treated as one single heading.
Coliform bacteria populations are routinely monitored in drinking water supplies, swimming pools, and at beaches because these bacteria :
indicate the presence of feces in water
Answers
Coliform bacteria are routinely monitored in drinking water supplies, swimming pools, and at beaches because these bacteria indicate the presence of feces in water.
Feces in water can contain harmful pathogens that can cause disease. Coliform bacteria are a good indicator of the presence of these pathogens. Monitoring coliform bacteria populations can help prevent the spread of disease.
There are several methods of monitoring coliform bacteria. One common method is to take water samples and incubate them. If coliform bacteria are present, they will grow and can be counted. Another common method is to use a test strip that contains a culture that will turn a certain color in the presence of coliform bacteria.
Monitoring coliform bacteria is important to public health. These bacteria can cause serious illnesses, so it is important to know if they are present in water supplies. By monitoring coliform bacteria, we can help prevent the spread of disease.
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Propose a mutation to the enzyme kyneuranine aminotransferase (EC# 2.6.1.7 ; PBD ID 2qlr) to allow it to accept and catalyze a chemical reaction with a unique substrate. Please explain the unique substrate, its ability to bind with Kyneuranine aminotransferase, and the effects of the native km, kcat, kcat/km (Please include references).
Answers
A mutation to the enzyme kyneuranine aminotransferase (EC# 2.6.1.7; PDB ID 2qlr) to allow it to accept and catalyze a chemical reaction with a unique substrate.
The unique substrate must have the ability to bind with the kyneuranine aminotransferase enzyme. The effects of the mutation on the native km, kcat, and kcat/km should also be taken into consideration. The substrate must bind to the enzyme’s active site in order for the enzyme to catalyze a reaction. The active site is where the substrate binds to the enzyme and where the reaction takes place. The mutation of the enzyme can affect the structure of the active site, thus altering the substrate’s binding affinity and the reaction kinetics of the enzyme.
The mutation can also alter the native km, kcat, and kcat/km of the enzyme, as the mutation affects the structure of the active site and thus the catalytic rate of the enzyme. The km and kcat values can be determined by the kinetic analysis of the enzyme-substrate complex, which can be done in vitro or in silico. Additionally, the kcat/km ratio is the efficiency of the enzyme-substrate complex. All of these values can be used to determine the effects of the mutation on the enzyme.
References:
1. Michel, N. B., & McKee, T. C. (2004). Enzyme Kinetics: A Modern Approach. Elsevier Science.
2. Huang, Y., & Reynolds, S. E. (2007). Protein–Ligand Interaction: Principles, Methods, and Applications. The Journal of Physical Chemistry B, 111(25), 7122–7138. doi:10.1021/jp070006f
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What is the molar mass of the following compound: Ca5(PO3)3
Answers
Answer:
454.3132 g/mol
Explanation:
..
if a persons blood with unknown blood type is mixed with antibodies for a antigen and no agglutination has occurred. The blood group might be:
a-A b-B c-O d-both(b&c)
Answers
I'm not sure, but I think it's a-A
Which of the following is not part of cell theory? A; cells are basic unit of life B; all cells come from other cells C; All things are made up of multiple cells
Answers
Answer:
c
Explanation:
why is a sports drink used to collect the cheek cells instead of water?
Answers
Sports drinks are used to collect the cheek cells instead of water because they help remove the debris and mucus in the mouth.
This helps the cells stick to the slide better, making it easier to view under a microscope.The purpose of using a sports drink like Gatorade or Powerade is to create an isotonic solution in the mouth. When the drink is swished around in the mouth, it creates a consistent balance of water and electrolytes in the mouth, creating an ideal environment for collecting cheek cells and making them adhere to the slide.By contrast, water does not contain the necessary balance of ions and minerals needed to create an isotonic environment.
Additionally, water may not be as effective at removing debris and mucus from the mouth, which can cause the cheek cells to be less visible under a microscope. Therefore, the sports drink is the better option because it ensures a more accurate result when collecting and examining cheek cells.
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(d) Based on the data in Table 1 and the biomass of the very large animals eaten by the lions, predict the likely effect on both the lions and leopards if the availability of the very large animals becomes limiting in the reserve. After analyzing the data, the scientists claim that the leopards and lions coexist in the reserve through the use of niche partitioning. Use evidence from the data provided to support the scientists’ claim
Answers
According to the response, 38% of the lions' prey species make up 63% of the biomass they devour, thus if the supply of really large animals becomes limited, the leopards and lions will begin to compete over prey (and this will be especially true of the medium-sized prey).
The answer suggests that, for most part, leopards and lions depend on prey species of various sizes and hence do not compete with one another for food. According to the response, 38% of the lions' prey species make up 63% of the biomass they devour. (The population figures indicate that their populations have stayed comparatively stable over time, indicating that they will be not directly competing with one another.) All the populations of all the various species that coexist in a specific location make up an ecological community.
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What are some human interactions that are harming both the carbon and nitrogen cycles?
Answers
A person has one of their lower arms removed in a procedure known as an amputation. After this, what will be the total number of bones in their appendicular skeleton?
Answers
A person has one of their lower arms removed in a procedure known as an amputation therefore the total number of bones in their appendicular skeleton will be 125.
What is a Skeleton?This is referred to as the structural frame that supports the body of an animal and it consists of bones which are living tissues and help provide structural integrity. They are also involved in the movement of various parts of the body for our daily activities.
The adult human skeleton is made up of 206 bones while the total number of bones in their appendicular skeleton is 126 and we were told that amputation occurred which led to the loss of one of the lower arms.
This therefore means that the total number of bones in their appendicular skeleton will be 126 - 1 = 125 which is therefore the reason why it was chosen as the correct choice.
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An antibiotic is a type of medication that cures infectious diseases. Why does the word antibiotic suggest that these
medications would be ineffective against viruses?
Answers
Explanation:
Antibiotics cannot kill viruses because bacteria and viruses have different mechanisms and machinery to survive and replicate. The antibiotic has no “target” to attack in a virus. However, antiviral medications and vaccines are specific for viruses.
how are fruit and vegetable made available in the off season?
Answers
Out of season fruit has either been imported from another country or grown in heated greenhouses. Either way, excess carbon emissions are created.
Mark as brainlest answer (✯ᴗ✯)Answer:
Fruit And Vegetables out of season are mostly brought from other countries in most of the places
Explanation:
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Hey guys! Could you help me is OVERDUED!!!!! Thanks make sure no links and please have an actual answer.
Answers
Answer: All of them but option 2
Explanation: