It insulates the axon and assembles specialized molecular structure at the nodes of Ranvier. In unmyelinated axons, the action potential travels continuously along the axons.
For example, in unmyelinated C fibers that conduct pain or temperature (0.4–1.2 μm in diameter), conduction velocity along the axon is 0.5–2.0 m/s (as fast as you walk or jog).
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you can find a nucleus in the cells of
The composition of a mineral represents its
A)size.
B)texture
C)hardness.
D)color.
a person gets energy from an apple by eating it. How does energy get into the apple in the first place? A the apple absorbs energy from the soil while it is on the tree B. the apple absorbs energy from the sun when it is in sunlight. C, the apple tree stores energy from the sun in the apple as sugar. D. the apple tree stores energy from the soil in the apple as sugar.
Answer:
The apple tree stores energy from the Sun in the apple as sugar.
Explanation:
study island
After food in the stomach is mixed with gastric juices, it forms a semiliquid called Select one: a. phlegm b. chyme c. bile d. feces e. bolusin
The stomach is the sac-shaped part of the gastrointestinal tract. The stomach wall has folds that open when the stomach is full to store swallowed food. Digestion of food in the stomach is done by gastric juice and its movements. At the end of digestion in the stomach is a digestive mixture called chyme
This is because particles are close enough that they can slide past each other, which makes liquid pourable. In a solid state, the particles of this element look like this
A cell that contains chloroplasts, a nucleus, and mitochondria is discovered. Biologists might decide it could
a. eukaryotic cell.
b. prokaryotic cell.
c. neither a eukaryotic or prokaryotic cell.
d. either a eukaryotic or prokaryotic cell.
Answer:
eukaryotic cell
Explanation:
because prokaryotic cells lack nucleus
Answer: eukaryotic cell
Explanation: Hope this helps :)
can someone please help me on this all u have to do is search up on the internet and then put down 4 facts that are mentioned in the web site and give the main idea to but make sure I know were the main idea is
web site: The de-extinction of the woolly mammoth would be an evolutionary mistake
1:As of recently, the essential contention for species de-termination was that it offered humankind an opportunity to make up for itself for the wrongs submitted north of millennia. People, one could really guarantee, have been messing up the planet since days of yore. Thus, a large number of the species that have been the objectives of de-termination endeavors have been picked on the grounds that they appear to have some essential thing right to make due. Frequently, they look similar as species that have made due until the present time. Assuming it hadn't been for people meddling with their normal natural surroundings and sensitive environments, the contention goes, they would have been prospering today.:2To get around this contention, however, a few researchers are beginning to put forth the defense that it wasn't Mother Nature who did in the wooly mammoth — it was people. When the planet began to defrost, people came into contact with the wooly mammoth in more prominent numbers, and started to chase them savagely after their meat, bones and even skin. It's basically the traveler pigeon proposal, stretched out to the wooly mammoth. De-eradication fans will most likely let you know that people bear a sort of transformative responsibility for having cleared out the wooly mammoth, quit worrying about environmental change.:3creating a highly-controlled environment (i.e. a theme park) where the wooly mammoth could conceivably flourish – it doesn’t reason that you can simply hit the “rewind” button on evolution. As some conservationists are already warning, bringing back a species like the wooly mammoth could lead to the disappearance of other species who share similar habitats. Once you bring back a new species, you have to start thinking about ecosystem effects — and about Butterfly Effects. Bringing back the wooly mammoth would require massive changes to existing ecosystems.:4Yet, that equivalent contention – an opportunity to reclaim human bad behaviors over an improper annihilation – doesn't hold on account of the wooly mammoth. The wooly mammoth, with its monstrous hair coat to save warmth, had no way for endurance once the Ice Age finished. As Darwin originally guessed, advancement resembles a calculation followed commonly. In the event that a variation assists an animal varieties with getting by and thrive, the transformation will stick. Assuming it doesn't, it will ultimately vanish from the genetic stock. For better or for more regrettable, certain species will go terminated when they can presently don't adjust to their current circumstance. It wasn't only that wooly mammoths had substantial hair coats – they had a wide range of different variations that assisted them with flourishing during the Ice Age, as enormous tusks to clean up snow and ice. Bringing back the wooly mammoth would be commensurate to bringing back an animal types that had the right to go terminated. : main idea Accepting totally effective cloning to make sound creatures, the cloned wooly mammoths would in all likelihood have hopeless existences and couldn't have ever evident freedomWhat's more not just the productive restoration of the wooly mammoth, but it's full rewilding into the Arctic." Bringing species like the wooly mammoth back into the frosty might perhaps help deferred down non-renewable energy source side-effects in the area and help with restoring lost organic frameworks, Lamm said.But think about how conceivable it is that they somehow made due. Our Arctic regions would look an incredible arrangement changed, and not because there would be huge assessed, shaggy animals meandering around. There would be less elk, moose, and caribou considering the way that the wooly mammoth would out battle them for food.Assuming absolutely viable cloning to make sound animals, the cloned wooly mammoths would probably have miserable presences and couldn't have ever clear freedomLamm said expecting the association is productive, research has shown bringing back ended species could reshape the Siberian tundra and in other Arctic regions to be more specialist of the normal game plan of the Arctic glades when it was an unrivaled carbon-sequestering areaLamm said assuming the organization is effective, research has shown bringing back wiped out species could reshape the Siberian tundra and in other Arctic districts to be more agent of the biological arrangement of the Arctic fields when it was a superior carbon-sequestering location.But imagine a scenario in which they some way or another made due. Our Arctic locales would look a ton changed, and not on the grounds that there would be enormous measured, shaggy creatures meandering around. There would be less elk, moose, and caribou in light of the fact that the wooly mammoth would out contend them for food.
True or False. Scientific names use the Spanish language.
Answer:
False, it's Latin.
Explanation:
The language known today as Spanish is derived from a dialect of spoken Latin, which was brought to the Iberian Peninsula by the Romans after their occupation of the peninsula that started in the late 3rd century BC.
Which component of blood contains
no nucleus or organelles and carries
oxygen to body tissues?
Answer:
Red Blood Cells
Explanation:
They mainly contain hemoglobin, and no nucleus or organelles, it also carries oxygen to body tissues.
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Assess It! Part 2
KESLER
SCIENCE
Use the vocabulary words from "Read It" to complete the
following sentences.
When rocks break apart into smaller pieces, it is called
(4)
Changes in temperature can cause rocks to
become slightly larger, or (5).
and become
slightly smaller, or (6)
This is often seen with a
type of weathering called (7)
where water
freezes and thaws inside the cracks of rocks. Another
type of weathering is called (8).
I
where the salt
that is left behind when water evaporates can cause
pressure in cracks of the rock.
Words are
Mechanical
Weathering
Depositon
Expand
Contract
Freeze thaw
Frost wedging
Salt wedging
Evoparte
Answer:
This unit is divided into 3 Arcs. Arc 1 answers the essential question, “What is weather and what factors influence
the weather?” The learning activities included in this arc guide students to use observation skills in order to
describe, explain, and predict weather patterns. Students will learn that the sun’s energy is the driving force of our
weather. They will complete activities to learn about wind, clouds, precipitation, temperature, and the role the
water cycle plays in our weather.
In Arc 2, students examine the essential question, “How does the ocean affect our weather?” Students will
complete activities to help them describe and explain the gulf stream, El Nino, La Nina, Sea and Land Breezes as
well as hurricanes.
Arc 3 allows students to investigate the essential question, “How does weather affect our lives?” Students will
complete activities to help them explain why our choices are based on the weather, as well as the impact that
climate change as on ecosystems. During the culminating activity in Arc 3, students research how to prepare for
extreme weather. Students have several opportunities to use their observations skills while working on their
nature journal
Explanation:
Weathering is the process by which rocks disintegrate into smaller fragments. Rock expands (with heat) and contracts (with cold) in response to temperature changes.
What is Weathering?Weathering is the deterioration of rocks, soils and minerals as well as wood and artificial materials through contact with water, atmospheric gases, and biological organisms.
Rock responds to temperature fluctuations by expanding with heat and contracting with cold. This is frequently observed with a weathering process known as Frost wedging, in which water freezes and thaws inside rock fissures. Salt wedging is a different type of weathering in which the salt that is left over after water evaporates can exert pressure on rock fissures.
Thus, Weathering is defined as the process by which rocks disintegrate into smaller fragments.
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Which phrase correctly defines a gene?
O a complete protein
a segment of DNA
a segment of a protein
a part of the cell membrane
Answer:
A segment of DNA
Explanation:
Genes are parts of DNA
A gene is a segment of the DNA (deoxyribonucleic acid). DNA is the genetic material of the cell which contains the information for the development of different characteristics in an organism. Thus, the correct option is B.
What is a Gene?
A gene is the basic unit of heredity in an organism. It can also be defined as the molecular gene which is a sequence of nucleotides in the DNA molecule that is transcribed to produce a functional RNA which synthesizes a protein. There are two main types of molecular genes which include protein-coding genes and the noncoding genes.
Protein-coding genes or exons are the regions in the DNA which encodes for the synthesis of protein and the non-coding genes or introns are the segments of the DNA which does not code for any protein and thus are spliced in the post-transcriptional mechanism.
Therefore, the correct option is B.
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Which of the following statements regarding digestion and absorption of carbohydrates is TRUE? Lactose intolerance results from an insufficiency of the enzyme amylase. Digestible polysaccharides are broken down into the monosaccharides glucose, galactose, and fructose, which can be absorbed. Sucrose is the main form of carbohydrate that can be absorbed by active transport across the intestinal epithelium. Carbohydrate digestion begins in the stomach. Cellulose from plants is a polymer of glucose that can be easily digested and absorbed by the human GI tract.
Answer:
CARBOHYDRATE DIGESTION AND ABSORPTION
For dietary carbohydrates to be utilized by the body, they must be converted during digestion to monosaccharides. In addition to starch, the other major dietary carbohydrates are the disaccharides lactose and sucrose, and the monosaccharide fructose. The monosaccharides produced by complete digestion of these dietary carbohydrates are glucose, galactose, and fructose.
The digestive process begins with salivary amylase, which randomly cleaves the α-1,4 linkages of starch. Although amylase digestion begins in the saliva, pancreatic α-amylase is more important to the complete digestion of starch (Fig. 19-1). Starch is degraded first to dextrins and then to a mixture of glucose, maltose, and isomaltose (containing the α-1,6 linkages that are not digested by amylase).
The major disaccharidases, located in the brush border of the intestinal lumen, are
•
Maltase—hydrolyzes maltose
•
Sucrase-isomaltase—hydrolyzes sucrose and isomaltose
•
Lactase—hydrolyzes lactose
Whenever lactose goes undigested, it is not absorbed and passes into the large intestine. Here lactose is acted on by the intestinal flora that ferment it, producing large quantities of CO2, hydrogen gas, methane, and organic acids; the last irritate the intestines, increasing intestinal motility. All these products have only one way out. Thus, the symptoms that characterize lactose intolerance are bloating and flatulence and, in extreme cases, a frothy diarrhea. Lactose intolerance is least common in Northern Europeans and their descendants and most common in descendants of Asian, African, and South American origin.
HISTOLOGY
Brush Border Dynamics
The unstirred brush border of the intestinal lumen consists of finger-like processes, known as microvilli, of the surface absorptive cells. Many enzymes associated with the process of digestion and absorption are located on the surface of these microvilli. This allows the products of digestion such as free fatty acids, amino acids, and monoglycerides to be absorbed by the cells rather than be swept into the lumen itself.
Which part of the sentence given below has an error in it? Lizza and Mike/ lives happily even in a/ small cottage near their farm. 1. lives happily ever after in a 2. No error 3. Lizza and Mike 4. small cottage near their farm "(tejyb nphkt)"
Answer:
Liza and Mike are two persons so that they are plural. Therefore they take '' live'' not' ''lives''
What is the first stage of metamorphosis?
Answer:
larve
Explanation:
innner metamorphasis started
Answer:
Larva Pls mark brainliest
Explanation:
Question 4 I need help with
D
Question 11
1 pts
A runner expends an average of 4 kcal per minute during a two hour run. She want to eat a meal of
50% energy from carbohydrate, 25% of energy from protein and 25% of energy from fat, how
much protein would their meal have to contain, in order to replenish their expended energy?
Given what we know about nutrition, we can confirm that the runner's meal would have to contain 30 grams of protein.
The runner in question wishes to complete a two-hour run while expending 4kcal or calories per minute, for a total of 480kcal. Furthermore, the runner wishes for only 25% (120kcal) of this energy to come from a source of protein.
Since every gram of protein adds 4 calories of energy to the meal, and we have to account for 120 calories, the runner will have to consume 30 grams of protein to achieve the desired results.
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What are the odds of a person with AB blood having a child with type O blood
Answer: 1 in 4 chance
Explanation:
Answer:
She is A blood type but like the father, also carries an O version of the ABO gene. As you can see in the image to the right, these two parents can have an O child. In fact, every one of their children would have a 1 in 4 chance for being O. And this is just the most common way an AB parent can have an O child.
The role of DNA segment that do not code for proteins
Answer:
The non-coding regions of DNA are called introns. They are significant in evolution since they offer a great 'recipe' for recombination with genes/exons. Therefore, this offers variations among individuals on which natural selection could act upon to help a population adapt to changes in the environment. Introns also offer an additional step in gene regulation through the splicing of introns in making of mRNA.
Define what are abiotic factors
abiotic factors are the non-living part of an ecosystem that shapes its environment.
for example water, light, etc.
can someone give me the answers and teach me how to do this?
Answer:
a) B. b
B. BB. Bb
b Bb. bb
b) H. H
h Hh Hh
h Hh. Hh
c) X. x
x Xx. xx
x Xx. xx
why do hurricanes weaken when they hit land
Answer: Tropical cyclones usually weaken when they hit land, because they are no longer being "fed" by the energy from the warm ocean waters. However, they often move far inland, dumping many inches of rain and causing lots of wind damage before they die out completely.
What is it called when a new cell expresses the traits of a skin cell?
cell specialization
cell reproduction
ocell replication
cell division
Answer:
cell specialization I think
Describe the function of the following organelles a. cell (plasma) membrane
b. cytoskeleton
c. cytoplasm
d. nucleus
e. nucleolus
f. Ribosomes
g. endoplasmic reticulum (rough and smooth)
h. vesicle
I. Golgi apparatus
j. lysosome
k. vacuole
l. centrioles (centrosome)
m. Cilia
n. flagella
o. mitochondria
p. chloroplast
q. cell wall
Answer:
the answer is b
Explanation:
Because I'm learning science and I looked at the answer for a while
When scientists refer to the DNA to RNA to proteins pathway, the RNA part really represents three differenttypes of RNA: messenger RNA (mRNA), transfer RNA (tRNA), and ribosome RNA (rRNA). How is each type of RNA important to protein production? ( Will Mark Brainliest and please only answer if your company 100% sure. And Do Not Repost Someone Else's Answer that is on Brainly Or Any Other Websites Please.
Answer: mRNA is transcribed from DNA and carries information needed for protein synthesis. During the translation phase of protein synthesis, the tRNA carry specific amino acids the the ribosome, and rRNA plays a role in the synthesis of the ribosome which is the site of translation phase of protein synthesis.
Explanation:
what objects could we find in the stratosphere
Which weevil is closely related to the oak weevil
I need help with these questions I will make you Brainlest please help
click on the attachment
True or false. Every living organism on Earth has been classified.
Answer:
False
Explanation:
We know more of the moon than we do of our own oceans! There are many, many, organisms on Earth that have not been classified. We have not been able to explore deep in the ocean, extremely cold climates, and some may have even been missed in "our backyard" because Earth is so diverse! According to National Geographic, "Even after centuries of effort, some 86 percent of Earth's species have yet to be fully described, according to new study that predicts our planet is home to 8.7 million species. ... So far, some 1.2 million species are known to science."
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I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)
- Heather
What are 3 inventions that came as a direct result of space exploration?
Answer:
NASA has addressed a lot of issues in space exploration through their inventions such as water filters, charge-coupled devices, lifeshears, scratch-resistant eyeglass lenses, cochlear implants, anti-corrosion coating and memory foam.
Explanation:
……….. are organic substances required in small quantities for our body
a. Minerals
c. trans fats
b. Vitamins
d. Amino acids
Answer:
your answer is B: Vitamins
Explanation:
