Which of the following statements about myelin is false? Myelin increases transmission speed of an Action Potential

Answers

Answer 1

The statement "Myelin increases transmission speed of an Action Potential" is actually true.

Myelin, which is formed by glial cells in the nervous system, acts as an insulator around axons and increases the speed of transmission of an action potential. This is because myelin prevents the dissipation of the electric signal by forcing it to "jump" from one node of Ranvier to another, a process known as saltatory conduction. In addition to increasing the speed of transmission, myelin also plays a role in protecting axons from damage and helps to conserve energy in the nervous system. In summary, myelin does not decrease the transmission speed of an action potential, but rather increases it through saltatory conduction.

Myelin is a fatty substance that wraps around the axons of neurons, acting as an insulator. This insulation allows the action potential to jump from one node of Ranvier to the next, a process known as saltatory conduction. This results in faster transmission speed of the action potential along the neuron.

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Related Questions

it is typical for children to begin seeing pubertal changes in their bodies between ages 8 and 14.. TRUE/FALSE

Answers

The given statement "It is typical for children to begin seeing pubertal changes in their bodies between the ages of 8 and 14" is True. Puberty is the period of sexual maturation and development when a child's body undergoes significant changes to prepare for reproductive function.

The timing of puberty can vary among individuals and is influenced by various factors, including genetics, nutrition, environmental factors, and overall health. However, the general age range of 8 to 14 is considered typical for the onset of puberty in most children.

During puberty, both boys and girls experience physical and hormonal changes. Girls typically begin puberty earlier than boys, with the first signs often appearing between the ages of 8 and 13. These changes may include breast development, the onset of menstruation (usually around ages 10 to 16), and the growth of pubic and underarm hair.

Boys usually start puberty later than girls, typically between the ages of 9 and 14. They may experience growth spurts, the development of facial and body hair, deepening of the voice, and an increase in muscle mass.

While the age range of 8 to 14 is considered typical for the onset of puberty, it's important to note that there is a wide range of normal variation. Some children may begin puberty earlier or later than this range, and it is influenced by individual differences and factors mentioned earlier.

In summary, it is generally true that children begin seeing pubertal changes in their bodies between the ages of 8 and 14, although individual variations exist. Parents and caregivers should be aware of these changes and provide appropriate support and education to children as they navigate through this significant developmental stage.

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lizard is a poikilothermic animal why

Answers

Answer:

Lizard is a poikilothermic animal because lizards are those animals that do not require a fixed body temperature, their temperatures can fluctuate with little to no adverse effects to their overall health.

Explanation:

Reptiles are cold-blooded, or ectothermic, animals. This means that they cannot produce heat in their own bodies, and have to rely on their surroundings to keep warm. By moving in and out of sunlight, reptiles can keep their body temperature at a steady level throughout the day.

Help me hoomans╮(╯_╰)╭​

Help me hoomans(_)

Answers

Answer:

7. Gene

8. Genetics

........................................

the endocrine gland is referred to as the master gland

Answers

The endocrine gland referred to as the "master gland" is the pituitary gland. Located at the base of the brain, the pituitary gland plays a crucial role in regulating and controlling many other endocrine glands in the body.

The pituitary gland consists of two main parts: the anterior pituitary (adenohypophysis) and the posterior pituitary (neurohypophysis). Each part has distinct functions and releases different hormones.

The anterior pituitary produces and releases several hormones that regulate the activity of other endocrine glands. These hormones include:

1. Growth Hormone (GH): Stimulates growth and development, particularly in bones and muscles.

2. Thyroid-Stimulating Hormone (TSH): Stimulates the thyroid gland to produce and release thyroid hormones that regulate metabolism.

3. Adrenocorticotropic Hormone (ACTH): Stimulates the adrenal glands to produce cortisol, a hormone involved in stress response and metabolism.

4. Follicle-Stimulating Hormone (FSH) and Luteinizing Hormone (LH): Regulate the reproductive system, including the production of gametes (eggs and sperm) and the secretion of sex hormones.

5. Prolactin (PRL): Stimulates milk production in the mammary glands after childbirth.

The posterior pituitary does not produce hormones itself but stores and releases hormones synthesized in the hypothalamus, a part of the brain. The two main hormones released by the posterior pituitary are:

1. Antidiuretic Hormone (ADH) or Vasopressin: Regulates water balance by controlling the reabsorption of water in the kidneys.

2. Oxytocin: Plays a role in childbirth by stimulating uterine contractions and promoting the release of breast milk during breastfeeding. It is also involved in social bonding and emotional behaviors.

The pituitary gland acts as a "master gland" because it controls and regulates the activity of other endocrine glands throughout the body. Through its production and release of various hormones, the pituitary gland helps maintain homeostasis, growth, metabolism, reproduction, and many other essential functions in the body.

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Why are Henrietta Lacks' cells called HeLa cells?

Answers

Answer:      Some of her cancer cells began being used in research due to their unique ability to continuously grow and divide in the laboratory. These so-called “immortal” cells were later named “HeLa” after the first two letters of Henrietta Lacks first and last name. Since Ms.

Explanation:

Answer:

its short for Henrietta slacks

Explanation:

its a technical term

you are doing research on a bacterial species, trying to determine the shape, distribution, and arrangement of a number of filamentous structures that protrude from the cell surface. which type of microscopy would best enable you to do this?

Answers

The best method for studying a bacterial species  that protrude from the cell surface is scanning electron microscopy.

A concentrated electron beam is used to scan a sample's surface in a scanning electron microscope (SEM), which creates images of the sample. The sample's surface topography and chemical composition are revealed by the signals that are created as a result of the electrons' interactions with the sample's atoms. An image is created by combining the position of the electron beam with the strength of the signal being detected while it is being scanned in a raster scan pattern. A secondary electron detector is used in the most popular SEM mode to find secondary electrons released by excited atoms (Everhart–Thornley detector). The topography of the specimen is one factor that affects the quantity of secondary electrons that can be detected and, consequently, the signal intensions.

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Hello My name Is Chloe, Do you think you can help me with My Question
I need Facts on sharks.
I'm doing a report for school.
Thanks:)

Answers

Answers:

Here are some fact about sharks that i found cool

#1

Possibly one of the most evolved sharks today are hammerhead sharks. They have an advanced sensory system and a body shape that has adapted to hunt specific prey

#2

Sharks may be one of the most important species on Earth. They have been maintaining our oceans for over 400 millions years.

#3

Sharks have evolved and changed much over millions of years. However many sharks today still share some of the features as sharks from millions of years ago.

#4

Sharks have been in our oceans for over 400 million years. Some of the earliest sharks were discovered dating back to the Devonian age.

#5

Sharks have survived five massive planet extinction events. These extinction events killed most life on earth and the last one around 65 million yeas ago killed the dinosaurs.

#6

There are over 500 species of shark.

#7

It is believed that each whale shark's pattern is unique, like a human's fingerprint.

#8

Sharks do not have bones. Instead, they have cartilage, that's what makes up human noses and ears

#9

According to the Smit.hsonian, there are over 500 known shark species, though many are endangered or declining due to various factors like overfishing.

#10

Your odds of getting attacked and killed by a shark are 1 in 3,748,067. In a lifetime, you are more likely to die from fireworks or lightning. Whereas over 100 million sharks are killed every year by humans.

#11

Whale sharks are the world’s biggest fish.

#12

Sharks mature slowly and reach reproductive age anywhere from 12 to 15 years.

#13

Hammerhead sharks' eyes are on the sides of their heads, so they have nearly a 360-degree sight line. Their panoramic view of the undersea world is inhibited by two blind spots, one in front of the snout and the other directly behind the head.

#14

Sharks predate the dinosaurs by 200 million years.

#15

Great whites can detect one drop of blood in 25 gal (100 L) of water and can sense even tiny amounts of blood in the water up to 3 mi (5 km) away.

(sorry if this took a lot of time but i had search somethings)

Have a nice day!

Answer:

Sharks do not have bones. ... Most sharks have good eyesight. ... Sharks have special electroreceptor organs. ... Shark skin feels similar to sandpaper. ... Sharks can go into a trance. ... Sharks have been around a very long time. ... Scientists age sharks by counting the rings on their vertebrae. ... Blue sharks are really blue.Sharks, in some form or another, have been around for 450 million years. ... There are over 500 species of shark. ... Sharks do not have bones. ... The whale shark is the largest fish in the ocean. ... Another shark species is the hammerhead shark, known for its distinct appearance.

Explanation:

Summarize the three steps of replication, using just a couple of words for each step.

Answers

Initiation - DNA unwinds and replication begins.

Elongation - New nucleotides are added to the growing DNA strand.

Termination - Replication is complete, and two identical DNA molecules are formed.

Initiation is the first step in DNA replication, during which the double-stranded DNA molecule is unwound and separated into two single strands, forming a replication fork.

This process is initiated by the binding of specialized proteins to the origin of replication, which is a specific DNA sequence that signals the start of replication. Once the DNA is unwound and the replication fork is formed, the next step of replication, elongation, can begin.

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PLEASE ANSWER WITH AN ACTUAL ANSWER!!!!! Why do temperate regions have 4 seasons?​

Answers

Temperate regions have 4 seasons because of the inclination of earth
Average yearly temperatures in these regions are not extreme, not burning hot nor freezing cold. Temperate means moderate. Unlike in the tropics, temperatures can change greatly here, between summer and winter. So, most places with a temperate climate have four seasons: summer, autumn, winter and spring.

In a Friday night baseball game, the pitcher throws balls an average of 94 miles per hour. which of the following data (shown in miles per hour) would show the most precision

A) 89,91,90,91

B) 95,97,93,91

C)92,98,96,90

D)90,92,94,95

Answers

Answer B!
95 + 97 + 93+ 91 = 376
376 divided by 4 = 94
Average formula = add all values together and divided by the amount of values in the equation
Mark brainliest plz!

Answer:

B)95,97,93,91 thats the correct answer

Which statements describe social behavior? Check all that apply.

Answers

A and D would be correct

All living things have

Answers

Answer: Sensitivity, reproduction, growth and development, regulation and energy processing

Explanation:

What are the 4 parts of the DNA strand?

Answers

The four parts of the DNA strand are hydrogen bonds, nitrogenous bases, a phosphate group and a pentose sugar.

The double helical structure of DNA is composed of nucleotides held by phosphodiester linkages. Each nuceotide in DNA is composed of a pentose sugar called deoxyribose, four nitrogenous bases -adenine, cytosine, guanine, and thymine, and a phosphate group. The nitrogenous bases in DNA molecules are held by hydrogen bonds. The double strands of the DNA molecule are twisted around each other on a common axis to form a helix that closely resembles a ladder.

The pairing of bases is said to be complementary in nature. This means that adenine is paired with thymine by double hydrogen bonds, and guanine is paired with cytosine by triple hydrogen bonds. This complementary pairing of nitrogenous bases is in accordance with the Chargaff's rule.

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Mutations in the mitochondrial DNA can cause human disorders. What future approach involving nuclear transplantation might be available to treat mtDNA-based human disorders? O mitochondrial swapping n

Answers

One future approach involving nuclear transplantation that might be available to treat mitochondrial DNA (mtDNA)-based human disorders is mitochondrial replacement therapy, also known as mitochondrial swapping or mitochondrial transfer.

Mitochondrial replacement therapy aims to address mtDNA mutations by transferring the nuclear DNA from an affected individual's egg or embryo into a donated healthy egg or embryo that has its own healthy mitochondria. This technique involves the following steps:

Nuclear DNA Extraction: The nucleus containing the majority of the genetic material is extracted from the egg or embryo of an affected individual.Donor Egg Preparation: A healthy donor egg is obtained from a woman with normal mitochondrial DNA. The nucleus of the donor egg is removed while leaving the healthy mitochondria intact.Implantation: The reconstructed egg, now containing the nuclear DNA from the affected individual and healthy mitochondria from the donor, is implanted into the uterus of the affected individual or a surrogate mother.

It is worth noting that mitochondrial replacement therapy is a complex and evolving field, with ongoing research and ethical considerations. The approach is subject to regulations and guidelines set by various regulatory authorities in different countries.

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Full Question ;

"What future approach involving nuclear transplantation, such as mitochondrial swapping or mitochondrial replacement therapy, might be available to treat mtDNA-based human disorders?"

Where do many benthic organisms live?

(answers)
A. attached to hard surfaces
B. in open water
C. near the surface of the water
D. attached to phytoplankton

Answers

Explanation:

Benthos are the organisms that live at the bottom of the Chesapeake Bay and its streams and rivers. The word benthos comes from a Greek term meaning “depths of the sea.” Benthic communities are complex and include a wide range of animals, plants and bacteria from all levels of the food web.

thirst is the body’s response to the need of energy? true or false

Answers

Answer:

True thirst is response to the need of energy

Explanation:

SORRY IF IM WRONG

Yes, true.

Explanation:
osmotic thirst = caused by eating salty food. desire pure water. hypovolemic thirst = thirst caused by low volume. caused by loss of fluid through bleeding or sweating.

When the accused enters into plea bargaining, the judge and prosecutor do not have to hold a trial. True or False

Answers

Answer:

True

Explanation:

Answer:

False

Explanation:

Put true on edge got it wrong its false

Question 13 (5 points)
What characteristics do all of the outer planers share?

Answers

Answer:

the outer planets are made out of hydrogen and helium, so, therefore, they are called gas giants, and all have faster orbits ad spins

Explanation:

2. Create a poster on how one should be careful around animals and avoid animal attack.
Remember, a poster must have
a slogan
b. a picture
a few words​

Answers

This seems easy.. You got this.

in cases where the plasma concentration of an ion or nutrient affects the secretion rate of a hormone, the affected hormone is usually a regulator of the homeostasis of that ion or nutrient.True or False

Answers

True. In cases where the plasma concentration of an ion or nutrient affects the secretion rate of a hormone, the affected hormone is usually a regulator of the homeostasis of that ion or nutrient.

This is because hormones play a crucial role in maintaining homeostasis by regulating various physiological processes, including ion and nutrient balance within the body. Similarly, parathyroid hormone (PTH) regulates calcium and phosphate homeostasis by increasing the release of calcium and phosphate from bones and increasing the reabsorption of these ions from the kidneys. When the plasma concentration of calcium is low, PTH secretion increases, which helps to raise the concentration of calcium in the blood and maintain calcium homeostasis.

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3. Which structure protects the developing embryo of a beech tree?
A. cotyledon
B. cuticle
C. seed coat
D. stomata

Answers

Answer:

Seed Coat

Explanation:

How does modification of stem occur write with two examples

Answers

The modification of the stem takes place through the development of various tissues, including the primary and secondary growth of the stem. In general, the stem's primary growth occurs at the tip, which contains the apical meristem, a specialized tissue that produces cells for growth. Meanwhile, the secondary growth occurs in the lateral direction, and it involves the formation of secondary tissues like cork cambium and vascular cambium.

Cork Cambium: Cork cambium forms in the outer layers of stems and roots of many plants. The cells produced by the cork cambium differentiate into cork cells, which form a protective layer called bark. Cork cells are typically dead, and their cell walls contain a waxy substance known as suberin. Cork cambium helps protect the stem from insects, temperature changes, and mechanical damage. Examples include the bark of trees, potatoes, and sweet potatoes.

Vascular Cambium: Vascular cambium forms a cylinder of cells that extends along the length of the stem and roots of many plants. The cells produced by the vascular cambium differentiate into xylem and phloem cells, which transport water and nutrients throughout the plant. Xylem is responsible for the transport of water and minerals from roots to the leaves, while phloem is responsible for the transport of food from the leaves to other parts of the plant. Examples of plants that have vascular cambium include trees, shrubs, and many other woody plants.

In conclusion, the modification of the stem occurs through the development of various tissues, including the primary and secondary growth of the stem. Examples of the secondary growth are cork cambium and vascular cambium that form in the outer layers of stems and roots of many plants. Cork cambium forms a protective layer called bark while vascular cambium forms a cylinder of cells that extends along the length of the stem and roots of many plants.

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three signaling molecules and they type of biological molecule they are composed of?

Answers

Answer:

oxygen, carbon, hydrogen, and nitrogen

Explanation:

I searched it up

Which kind of reaction is photosynthesis
O light-independent
O temperature-independent
O exothermic
O endothermic

Answers

endothermic reaction

Answer:

endothermic reaction

l am sure

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All the different plant populations make up the plant ?

Answers

All the different plant populations make up the plant community in this swamp. The plants are part of a bigger ecosystem that contains many abiotic and biotic factors.

What is an Ecosystem?

An ecosystem may be defined as a place or an area that involves individuals of different species that live together and interact with one another for the purpose of food, shelter, and space.

In ecology, a community may be defined as a group of individuals belonging to different species that are living in the same area at a given time.

So, all the different plant populations make up a plant community.

Therefore, the community is the collection of all different forms of species but the ecosystem is the community has highly influenced by abiotic and biotic factors.

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why are brayophytes called amphibians​

Answers

ctto:mosesesiekpe07

hop it helps

why are brayophytes called amphibians


The volume of this aquarium is


please help it’s due in 45 minutes i appreciate anything

The volume of this aquarium isplease help its due in 45 minutes i appreciate anything

Answers

Answer:
The volume of the aquarium is 4200cm^3.

Explanation:
The formula for finding the volume of a rectangular prism:

V=length*width*height

1. Input the values
V=25*12*14
V=300*14
V=4200

Therefore, the volume of the aquarium is 4200cm^3.

I hope this helps! A brainliest would be much appreciated :)

Answer:

4200u cubed

Explanation:

V = lwh

chooe the name of the tract that might be damaged when the following condition are oberved

Answers

A descending spinal tract called the lateral corticospinal tract transmits voluntary motor impulses from the brain to the body's extremities damaged.

A spinal cord damage would prevent voluntary movement above and below the injured level. To accommodate the more nerve cells and connections required to process information relevant to the upper and lower limbs, two areas of the spinal cord are expanded (see Figure 1.10B). The ventral horn is spherical, whereas the dorsal horn is thin and reaches to the spinal cord's border. Reduced postural control and impaired selectivity of postural control can be caused by lesions to the cortico-reticulospinal system.

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The weather changed from cold to warm. Jessica was excited because should could wear her new flip flops and shorts to school. She had her science laboratory later in the day.

What should she do to be safe?

Answers

Answer:

Wear close toed shoes, goggles and jeans.

ms. smith-neal takes a fibrate to help lower her cholesterol. which cholesterol-lowering drug is a fibrate?

Answers

Drugs known as fibrates are used to treat hyperlipidemia. Particularly, fibric acid derivatives primarily decrease triglycerides, while also lowering LDL-C and boosting HDL-C levels. Some commonly used fibrates are Fenofibrate, tricor, and fenofibric acid.

Fibrates reduce triglycerides in a variety of ways. They first attach to PPAR receptors (peroxisome proliferator-activated receptor alpha). This action boosts the activity of the lipid metabolism enzyme lipoprotein lipase (LPL), which eventually disassembles and eliminates triglyceride particles. Their second method of action reduces the production of new triglyceride particles by impeding fatty acid synthetase and acetyl-coenzyme A carboxylase. In the end, these actions result in a rise in HDL-C and a fall in triglycerides and LDL-C. According to data, fibrates have a negligible impact on primary cardiovascular event prevention.

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what is the measure of the missing angle X?????? In a study on coffee consumption and essay writing, the group that is given coffee before writing essays is the ______ group. What is an active metal?A. a metal that reacts with oxygenB. a metal that is above hydrogen in the activity seriesC. a transition metalD. a metal with only one valence electron Which of the following tools or commands can be used to monitor resources in Windows? Select all that apply.a) The PowerShell Get-Processcommandlet. b) Control Panel. c) The msinfo32 command entered in the CLI. d) The Resource Monitoring tool If a 5 percent increase in the price of tennis rackets decreases the quantity demanded of tennis balls 10 percent, the cross-price elasticity of demand isnecessary.) A 50-year-old male patient arrives in the emergency department complaining of severe chest pain. He is taken to the cardiac cath lab for a coronary angiogram and left ventriculogram. The cardiologist discovers a lesion in the left main coronary artery branch and orders an immediate CABG. Why does the location of this lesion make it more dangerous than lesions in other locations? What is this leat to gratest what were the social motives for imperialism? a rectangular prism 1/4 centimeter long, 4 centimeters wide, and 1/2 centimeter high. What is the volume, in cubic centimeters, of the rectangular prism? In a triangle with integer side lengths, one side is two times as long as the second side and the length of the third side is 22 cm. What is the greatest possible perimeter of the triangle?" I need help on num.1 great explanation=5 stars , I am writing this down in my notebook multi step equation 3(4+x)=x+16 True/False: For the same system, heterogeneous nucleation will occur at less undercooling than homogeneous nucleation. what structure does science fiction give PLEASE HELP! WORTH 20points. AND WILL NAME BRAINLIEST. PLEASE LEAVE HONEST ANSWERS The Program: Directed by ? The major cultural values of a society are expressed by _________.A.people's views of themselvesB.people's views of the universeC.people's views of organizationsD.people's views of societyE.people's views of themselves and others, as well as their views of organizations, society, nature, and the universe A juice stand sells two types of fresh juice in 12 oz cups, the Refresher and the Super-Duper. The Refresher is made from 3 oranges, 2 apples and a slice of ginger.The Super Duper is made from one slice of watermelon, 3 apples and one orange. The owners of the juice stand have 50 oranges, 40 apples, 10 slices of watermelonand 15 slices of ginger. Let x denote the number of Refreshers they make and let y denote the number of Super-Dupers they make. Which would be correctconstraints for the oranges In what way are the topics of the story and the poem similar Evaluate 3/4 1/2. PLEASEEEE HELP