why are different leads are used to measure the ECG
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.
Learn more about the heart electrocardiogram:
https://brainly.com/question/26064795
what is the person's ultimate search in life? why?
Answer: The ultimate purpose of life is to be at a higher positive frequency than negative, as you move through the vicissitudes of life, such that you feel content at the moment of death.
Contentment at the moment of death ensures that you reconnect to your positive soul self after death, review soul lessons, heal and recuperate.
If you are not content at the moment if death , you may get lost in an invisible maze of difficulties, as a spirit in a human form and gave a difficult after life & /or next life. .. To be content at the moment of death requires several years of training in detachment, meditation and positive thinking, through life.
Explanation:
Cells spend most of their time in what phase?
Answer:
A cell spends most of its time in what is called interphase
Explanation:
Can people develop PTSD vicariously? How different are the experiences of those who develop PTSD vicariously compared with people who develop it through firsthand experience?
Answer: certain people can develop PTSD vicariously some people cant but some can there is a huge difference between them people that experience in first hand have some what worse PTSD becuase it was first hand and not vicariously
Explanation:
trust me
What is the type of cell show in the circle plant cell,prokaryote cell,eukaryotic cell,egg cell?
In cocker spaniels, solid color (S) is dominant over spotted (s). If a solid male is crossed with a spotted female and they produce all solid colored puppies, the genotypes of the parents must be:
Answer: the genotypes must be solid that is. if the male is a solid colored genotype
what is the effect of atmospheric disturbances on stars
This the correct answer
Explanation:
However,when light enters the Earth's atmosphere,the different wind speeds distort the light waves,leading to distortions in the image of stars.The effects of the atmosphere can be modeled as rotating cells of air moving trubulently.
#carryonlearning
#brainlyeveryday
#ctto
Describe the steps of a muscle contraction.
(1) A message travels from the nervous system to the muscular system, triggering chemical reactions.
(2) The chemical reactions lead to the muscle fibers reorganizing themselves in a way that shortens the muscle--that’s the contraction.
(3) When the nervous system signal is no longer present, the chemical process reverses, and the muscle fibers rearrange again and the muscle relaxes.
Which renewable resource is not safe for the environment and why?
Answer: Biomass
Biomass produces gas or many sorts of waste products which are mostly used in burning and cooking. It is plant or animal material used as fuel to produce electricity or heat. Examples are wood, energy crops, and waste from forests, yards, or farms.
But the reason why it can be harmful is because biomass can produce gases like methane. Methane is a greenhouse gas which can harm the environment and reduce the ozone layer that stops harmful UV light from reaching the earth atmosphere.
what is the difference between plant cell nd animal cell
A plant cell contains a cell wall and chloroplasts, while animals cells do not have these cellular structures.
Chloroplasts are organelles required to produce energy in the form of ATP and thus synthesize simple carbohydrates (e.g., glucose) by the process of photosynthesis.Cell walls are cellular structures that help to support and shape plant cells.Moreover, plant cells generally contain big vacuoles, whereas animal cells generally exhibit small vacuoles.In conclusion, a plant cell contains a cell wall and chloroplasts, while animals cells do not have these cellular structures.
Learn more about plant cells and animal cells here:
https://brainly.com/question/560579
How do protozoa and algae differ?
Which statement below BEST summarizes the role of the DNA molecule in cells?
Answer:
It contains the genetic material
Which of the following correctly lists functions of
proteins?
Explanation:
The correct answer is providing structure, regulating cell processes and creating movement
WILL GIVE BRAINLEST Why do plants store some of the food they produce?
A. to live through periods when they already have too much food
B.to have tough structures for defense
C.to provide food for other plants
D.to survive periods when they cannot make enough food
Answer:
D is your answer
Explanation:
there are times when plats cant photosynthesis to make food. So they rely on their food storage so they don't die.
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.
Briefly explain how DNA profiling is used to identify individuals.
If the chloroplasts of a plant cell are damaged, which will it be unable to do?
a. protect the cell
C. excrete waste materials
b. make food for the cell
d. give instruction to the cell to reproduce
Answer:
Make food for the cell
Explanation:
Since the purpose of the chloroplast is to create energy for the cell, should it be damaged it would lose its ability to do so.
Hopefully this is a better answer
Answer:
I believe it is b
Explanation:
Chloroplast help to produce food and uses the suns sun rays or energy given off of it to produce one it’s green color and it well the food
When Sam cut open an apple he found only four seeds. Can you explain why?
Answer:
Yes
Explanation:
it is depend on the fruit of apple
Which of the following are functions of an animal's movement structures like wings, legs, or fins? Select the two correct
answers. (1 point)
identifying food
keeping out bacteria and viruses
migrating to mating spots
o escaping from predators
protection from elements
The legs, wings, or fins most of the time are used in locomotion and sometimes in defense.
These are two functions of an animal's movement structures like wings, legs, or fins:
migrating to mating spots escaping from predators.These structures are like structural adaptation defenses. These structures might be for defense, movement and for obtaining resources which might include food.
Learn more about these structural adaptations: https://brainly.com/question/352589
Answer:
migrating and escaping predators
Explanation:
25 points
Complete the sentence. Carbon flows between ____________, environmental storage centers that absorb and store carbon for long periods of time.
plants and animals
humans and air
rocks and soil
carbon sinks
Answer:carbon cycle
Explanation:
Answer:
it would be stored in plants in animals
Explanation:
those are one of our main sources of oxygen
In which state elements occurs?
An element is said to exist in free state if it does not combine with any other element. Rather, free state elements are stable even without combining.
Calcite is created by combining:
a. calcium, carbon, and nitrogen
b. calcium, carbon, and oxygen
C. calcium, oxygen, and nitrogen
d. calcium, oxygen, and hydrogen
Please select the best answer from the choices provided
Ο Α
O B
O C
O D
Answer:
Calcite is created by B: Calcium, Carbon, and Oxygen
4. Which factors favor the exchange between blood and tissues?
Answer:
The primary force driving fluid transport between the capillaries and tissues is hydrostatic pressure.which can be defined as the pressure of any fluid enclosed in a space. Blood hydrostatic pressure is the force exerted by the blood confined within blood vessels or heart chambers.The rate of exchange, In either direction, Is determined by physical factors : hydrostatic pressureb , oncotic pressure , And the physical nature of the barrier separating the blood and the interstitium of the tissue (Ex:- The permeability of the vessel wall).Hope this helps !!What is the inkiphalin command?
Answer:
It's Enkephalins.
Enkephalins are small peptides that can serve as neurotransmitters in the brain. Enkephalins act to attenuate substance P release in the dorsal horn of the spinal cord and inhibit afferent pain fibers.
explain the important of insects
If a nerve cell stopped functioning, the cell would
Answer:
stop sending signals to the brain
Explanation:
Aluminum is mined from the ground. Recycling aluminum cans decreases the need for mining bauxite. Paper can also be recycled. How does recycling paper preserve trees?
Answer:
Saving wood
Explanation:
It takes less water to break down waste paper than it does to break down wood. If paper recycling is used to the full potential, wood is only needed once to produce 5 cycles of paper which also means saving waste from landfill 5 times.
Which components can be found in all living organisms?
A. guanine and chlorophyll
b. nitrogen and iodine
c. adenine and cytosine
d. estrogen and testosterone
i need help plsssss
Answer:
oxygen, carbon, hydrogen, nitrogen, calcium and phosphorus.
True and False:
1. (______) Fungi and bacteria are both prokaryote organisms
2. (______) Some Fungi reproduce both sexually and asexually.
3. (______) Saccharomyces cerevisiae reproduce sexually by budding.
4. (______) Lactophenol cotton blue is mostly used for staining the dark mold
5. (______) Yeast is regarded as multicellular fungi and molds are unicellular fungi.
Answer:
1. Falso
2. Falso
3. Verdadero
4. Falso
5. verdadero
Explanation:
1. Las células de los animales, las plantas y los hongos son eucariotas
2. Los hongos se reproducen sobre todo por medio de esporas
3. cerevisiae se reproduce tanto asexual y sexualmente levaduras se reproducen asexualmente mediante un proceso conocido como gemación.
4. La tinción de Azul de lactofenol se emplea para observar hongos.
5. Los hongos pueden ser unicelulares o pluricelulares. Las levaduras son hongos unicelulares
What is the relationship between resource use and the amount of waste produced?
Answer:
In recent years, the concept of the circular economy and related policies have tackled resource use, production, consumption and waste at a high level.
Explanation:
hope it helps a lil