Different leads are used to measure the ECG simply because each lead is recording the electrical activity of the heart from a different direction
Each individual lead's ECG recording is slightly different in shape. This is because when the electrical activity within the heart travels towards a lead you get a positive deflection.
ElectrocardiogramAn electrocardiogram (ECG) is a simple test that can be used to check the heart's rhythm and electrical activity. Sensors attached to the skin are used to detect the electrical signals produced by your heart each time it beats
ElectrocardiographyElectrocardiography is the process of producing an electrocardiogram, a recording of the heart's electrical activity.
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compare a frogs internal organs to a humans internal organs
Answer:
Answer is below
Explanation:
Frogs and humans share the same basic organs. Both have lungs, kidneys, a stomach, a heart, a brain, a liver, a spleen, a small intestine and a large intestine, a pancreas, a gall bladder, a urinary bladder and a ureter. ... On the whole, their organ structure is similar, but frogs have considerably less complex anatomies
Cows, buffaloes and wildebeest are closely related enough that the same disease can harm all of them true or false
Animals do not have inner feelings that tell them when to eat.
True or False
Answer:
true
Explanation: because if they did then that would be crazy, its like how would they have feelings that tell them what to eat and what not to eat, yk what i mean? im sorry if this is wrong.
How can i earn money from this app?
Answer:
u dont earn money from brainly. the point is altruistic help
Explanation:
if u mean something else, provide context and ill leave a comment with the correct answer
PLS HELP, HELP HHHHEEEELLLLPPPP
1) How long is it's growing season for carrots.
2) How long is it's growing season for corn.
Answer:
2-4 months for carrots and about 120 days for corn
Explanation:
Which of the following characteristics are necessary for a fossil to be a good index fossil? (Choose all that apply)
had a broad geographic distribution
easy to identify at the species level
an invertebrate
short-lived
Answer:
A good index fossil is one with four characteristics: it is distinctive, widespread, abundant, and limited in geologic time. Because most fossil-bearing rocks formed in the ocean, the major index fossils are marine organisms.
Explanation:
Fossil to be a good index fossil are:-
Had a broad geographic distributionEasy to identify at the species levelAn invertebrateShort-livedWhat is a fossil?Fossils are the preserved remains, or traces of remains, of ancient organisms. Fossils are not the remains of the organism.They are rocks. A fossil can preserve an entire organism or just part of one. Bones, shells, feathers, and leaves can all become fossils.Hence, All the given option are correct.
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65 points, anwser asap, graph below
What is happening to the deer population between the years 2005 to 2010? Support with reasoning from our model of population growth.
Answer:wolves
Explanation:
wolves decreased the population because they kept increasing so people killed the and a couple of years later they went up the so they brought wolves back!
This is confusing, help please
Answer:
C: the song bird
Explanation:
Birds follow a type II or in your case a type B survivorship curve. Unlike elephants which are a Type I or Type A, and the bugs are Type III or Type C in your case.
Answer: I think it would be (C)
Explanation:
I really hope this helps
NEED ANSWER! WILL BRAINLIST!
•During the mining process, which step immediately follows separating the mineral from the waste rock?
A. refining
B. distribution
C. crushing and milling
D. drilling and blasting
Answer:
C
Explanation:
if the chloroplasts of a plant cell are damage, which will it be unable to do?
Answer:
Become Green
Explanation:The Organelles that are green will be destoryed causing the plant not to be able to become green
Find the similarities or interesting facts about system of modern phones and human brain.
The human brain and that of the computer(Modern Phones) are similar is so many ways, bellow are some highlighted facts between the human brain and the computer
They used electrical signals to send messagesBoth transmit information.Both have a memory that can growBoth can adapt and learn.Both have evolved over time. Both need energy. Both can be damaged. Both can change and be modifiedBoth brains and computers are studied by scientists.Learn more about the human brain and computer
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Which of the following are unique to animals? Flagellated gametes, nervous system signal conduction in muscular movement, heterotrophic, the structural carbohydrate chitin
Answer:
Nervous system signal conduction in muscular movement
Explanation:
Hope i helped :)
To remember abdominal muscles, explain what TIRE stand for the phrase “spare TIRE”.
Answer:
Spare tire in abdominal area is large amount of fat deposits usually derived by poor diet and lack of exercise
The spare tire is excess body fat stored around the midsection when our calorie balance is off.
It is caused by an imbalance between calorie intake and output, poor diet and insufficient activity are the main culprits of belly fat.Why excess fat is not good for health?Weight gain and obesity.Heart disease and related issues, like high blood pressure.High blood cholesterol levels and triglyceride levels.Metabolic syndrome.Prediabetes.Type 2 diabetes.Insulin resistance.Fatty liver disease.Stroke.To know more about fats here
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PLEASE HELP ME ANSWER THIS!!!!!
Outline a heart-healthy “plan” for a person’s whole life: in other words, provide at least two pieces of advice appropriate for a person interested in heart health across their lifespan. Discuss advice appropriate for newborns or very small children; young adults between 18 and 24 years of age; someone in their 40s; and someone over 65. Provide at least one piece of age-appropriate advice specific to the interests, activities, and general health of an average person in each age group.
A heart-healthy plan for everyone is to eat lots of fruits and vegetables. It's also important to eat low-fat dairy products.
The heart is a vital organ in the body as it keeps the circulation of blood. For children, they should be served fruits and vegetables everyday. They should also eat whole grains.
For adults, they should eat more fish and less red meat. They should also eat lots of fruits and vegetables. Nuts, beans, legumes, and low-fat dairy products are also important for the heart.
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Explain how cells theory development
Answer:
The invention of the microscope led to the discovery of the cell by Hooke. While looking at cork, Hooke observed box-shaped structures, which he called “cells” as they reminded him of the cells, or rooms, in monasteries. This discovery led to the development of the classical cell theory.20-Aug-2020
Explanation:
hope this. helpes
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If white wool (W) is dominant over black wool (w), can two sheep with black wool produce an offspring with white wool? Explain your answer.
Answer:
No, the offspring of two black sheep cannot have white wool. Since the black wool allele is recessive, both parents have to be recessive (ww) and so do not carry the dominant white wool allele. The only allele the parents can pass to their offspring is the black allele.
Plzzzz help Creating models to examine concepts is important in science. Some of these are experiments
and only one is a model. Which one is a model?
a
O A heated soda can is cooled rapidly to see what will happen to air pressure.
O An apple is sectioned into quarters to represent the ratio of water to land on Earth.
O Ice cubes are left to melt on different surfaces to find out how materials conduct heat.
O Students conduct a color blindness test with their family members.
Knowing that a model is considered a representation of something, the correct option is option B, in which the apple represents the Earth. An apple is sectioned into quarters to represent the ratio of water to land on Earth.
--------------------------------
To answer this question, you can think about a model as a representation of something.
A scientific model can represent an object, a system, a process, a phenomenon, etcetera.
Models are used to explain, predict, or describe natural events. They constitute a significant tool in modern science and are essential to scientific practice.
Knowing this, among the provided options, the one that is a model is option B.
The apple is representing the ratio of water to land on Earth. It is a representation of the earth.
All the other options are experiments performed to see what is going to be the result.
---------------------------------
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At which temperature could air hold the most water vapor?
A. 2°C (36°F)
B. 24°C (75°F)
C. 35°C (95°F)
D. 13°C (55°F)
Answer: C: 35° (95°F)
Explanation: The hotter the temperature, the more water vapor air can hold.
Cell division vocabulary .
Answer:
Chromosomes-a threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.
Chromatin-the material of which the chromosomes of organisms other than bacteria are composed. It consists of protein, RNA, and DNA.
Chromatid-each of the two threadlike strands into which a chromosome divides longitudinally during cell division. Each contains a double helix of DNA.
Centromere-the region of a chromosome to which the microtubules of the spindle attach, via the kinetochore, during cell division.
Centriole- a minute cylindrical organelle near the nucleus in animal cells, occurring in pairs and involved in the development of spindle fibers in cell division.
Explanation:
Taste action potentials move through cranial nerve number ____ to the brain.
Answer:
Cranial Nerve #9
Explanation:
Cranial nerve number 9 is also called the glossopharyngeal nerve. Taste perception is really cool I recomend studying this topic well!
Which is a type of mining that is very dangerous but doesn't disrupt much of the surface? A Surface mining B. Strip mining C. Mountaintop removal D. Long wall mining
Answer:
Surface mining.
Explanation:
Surface mining can severely erode the soil or reduce its fertility. It can also pollute waters or drain underground water reserves; scar or altar the landscape; damage roads, homes, and other structures; and destroy wildlife.
Which of the following symptoms is characteristic of a manic mood state?
a) Cycling between elation and depression
b) Catatonic excitement
c)
Disorganized speech in the form of a "word salad"
d) Extremely high self-esteem
)
The symptom that is a characteristic of manic mood state is therefore: b) Catatonic excitement
What is the Manic Mood State?The manic mood state is a phase of bipolar disorder, which is characterized by catatonic symptoms such as heightened energy, euphoria, loss of sleep, excessive talk, and being hyperactive.
Thus, the symptom that is a characteristic of manic mood state is therefore: b) Catatonic excitement
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The skeletal system of animals provides structure and support. Which cell part provides a similar function in a plant cell? a. pili b. large central vacuole c. Golgi apparatus
d. cell membrane
Answer:
b. large central vacuole
Explanation:
it maintains pressure against the inside of the cell wall, giving the cell shape and helps to support the plant.
In your own words explain why the sky is blueI
Answer:
As white light passes through our atmosphere, tiny air molecules cause it to 'scatter'. The scattering caused by these tiny air molecules (known as Rayleigh scattering) increases as the wavelength of light decreases. ... Therefore, blue light is scattered more than red light and the sky appears blue during the day.
Explanation:
Thank You I hope it's helpfull...
If a nerve cell stopped functioning, the cell would
Answer:
stop sending signals to the brain
Explanation:
The desertification of an area from deforestation due to mining gold would be a(n) ___ cost of the gold.
indirect
direct
Answer: the answer would be indirect
What must organisms be adapted to so that they can live in an estuary?
both low and medium salt concentrations
medium and high salt concentrations
high salt concentrations
low salt concentrations
Answer:
Both low and Medium salt Concentration.
Two key adaptations they have are the ability to survive in waterlogged and anoxic (no oxygen) soil, and the ability to tolerate brackish waters.Hope this helps !!Answer:
both low and medium salt concentrations
Explanation:
took the test
What is the type of cell show in the circle plant cell,prokaryote cell,eukaryotic cell,egg cell?
In which of the following ways can albert reduce the resources he consumes
Answer:
where is option man?
please,send option also
i need help with understanding what this is