Answer:
It actually measures the electrical activity
Explanation:
They are sticky wires that they put on your arms and chest etc
Electrocardiogram measures how much electrical current can be passed through a heart before it stops beating. The correct option is C.
What is electrocardiogram?An electrocardiogram is a simple test that can be employed to check the rhythm and electronics activity of your heart. Sensors connected to the skin detect the electrical signals generated by your heart every time it beats.
The electrical signals in the heart are recorded by an electrocardiogram. It's a prevalent and painless test for detecting heart problems and monitoring heart health.
An electrocardiogram, also known as an ECG, is frequently performed in a doctor's office, clinic, or hospital room.
It is a heart electrogram, which is a chart of voltage over time of the electrical activity of the heart recorded with electrodes placed on the skin.
Thus, the correct option is D.
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Identify two specific populations that most likely increased in number after the mountain lion population decreased. Explain why.
Any change that occurs at any link of a trophic web will affect the other links. The two specific populations that most likely increased in number after the mountain lion population decreased are rabbits and deers.
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The trophic web is a relationship process between different organisms, through which occurs transference of energy. The ones placed at lower levels pass energy to the ones at the higher levels.
Organisms at each level feed on the preceding one and become food for the next one.
The first link corresponds to a producer organism -autotroph-.The following links are the consumers -heterotrophs-: herbivores and carnivores. The last links are the decomposers that degrade organic matter from dead organisms.
As it is a web, all organisms are equilibrated until a change occurs.
When the change affects any of the involved links, there can be a cascade effect on the web.
A change in a link population size (increasing or decreasing) will affect the superior links and the immediately anterior link.
Also, when two or more species are competing for the same source of food, a change in any of the population sizes will affect the other ones.
According to the provided trophic web, puma feeds on deer and rabbit.
Since puma was killed, their population size sharply decreased.
This fact followed the predator-prey cycle, in which the predator regulates the prey population size and vice-versa. When there is a decrease in the predator population size, the prey population increases in size because of the absence of their natural predators.
In the absence of puma, deer and rabbits increase their population size. They live in an environment with no predators and enough resources.
The number of individuals of each species increased, and the amount of food consumed increased too.
This change negatively affected grasses and grains, which were over-consumed. Also, crickets and mice were affected too because they compete for the same food source.
So, cascade effects would be as follows,
1) The decreased in the puma population size caused an increase in the deer and rabbit population size.
2) The increase in the deer and rabbit population size caused a decrease in the grains and grasses species population, because they were over consumed.
3) The decrease in grains and grasses caused a decrease in the cricket and mouse population, because they feed on the first ones, competing with deer and rabbits for food.
The two specific populations that most likely increased in number after the mountain lion population decreased are rabbits and deers.
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Select all the correct answers.
For a claim about the natural world to be considered scientific, what attributes must it have?
It must be consistent with only a small portion of relevant observations or data.
It must be open to modification if new evidence doesn't completely support it.
It must be based on scientific observations that can be repeated in a controlled setting.
It must be applicable to future events and occurrences.
(MUST BE MORE THAN ONE ANSWER)
Answer:
It must be consistent with only a small portion of relevant observations or data. It must be applicable to future events and occurrences. It ...
2 answers
·
30 votes:
It must be based on scientific observations that can be repeated in a controlled setting, ...
Explanation:
An individual has a genotype of IBi. What is their blood type?
Answer:
type B
.................
the process of activating photoreceptors by altering the photopigments is known as __________.
The process of activating photoreceptors by altering the photopigments is known as PHOTOTRANSDUCTION. It involves the mechanism by which light can be converted into electrical signals.
Phototransduction refers to the mechanism by which light can be converted into electrical signals.
Visual phototransduction occurs in the part of the eye known as the retina, in specific cells called photoreceptors and ganglion cells.
Photoreceptor cells include rod cells and cone cells, which are sensitive to light.
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The separation of the colors occurs because each different ____ of light ______, or bends a different amount
A frequency, wavelength
B wavelength, reflects
C wavelength, refracts
A scientist hypothesizes that increasing the amount of salt in a body of water will decrease the number of plants that can live in the water. What is the independent variable?
Group of answer choices
Amount of salt
Amount of water
Temperature of the water
Number of plants in the water
Dependent and Independent variables are regarded as variables in mathematical and statistical modeling and of course in some other aspects.
The independent variable is this case is the amount of salt.
In this kind of scenario, one can think of independent and dependent variables in terms of cause and effect. An independent variable is the variable we assume to be the cause, while a dependent variable is assumed as the effect. Therefore, with this case, the amount of salt would cause a decrease in the number of plants. While the effect of increasing the amount of salt would be seen in the number of plants.Learn more about dependent and independent variable: https://brainly.com/question/25223322
who won the nobel prize for discovering the structure of dna
Answer:
James Watson, Francis Crick , Maurice Wilkins and Rosalind Franklin
Which of the following structures is known as the power house or power generator of a cell?
оооо
mitochondria
rough ER
smooth ER
cytoskeleton
In deserts there’s a strong environmental pressure to conserve water. How did cactuses evolve to meet this pressure?
Answer:
Cacti evolved in the way that they are able to hold watter within themselves and their cells.
Explanation:
Cactuses have evolved in such a way that their roots and leaves hold water as long as possible. This gives the capability of cacti to meet this environmental pressure in order to conserve water.
What are the special adaptations of the cactus?Under desert climates, cacti have various numerous unique adaptations in order to facilitate their survival in the same habitat. It includes its roots, leaves as well as stems that enable it to thrive in desert environments.
These adaptations include: Leaves are reduced to spines to reduce water loss through transpiration. Wide and deep roots absorb rainwater on the surface and reach the underground deep water.
Therefore, cactuses have evolved in such a way that their roots and leaves hold water as long as possible.
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A chemical agent that kills pathogenic microbes in general is a(n) sanitizer. fungicide. disinfectant. antiseptic. germicide.
Answer:
Disinfectant
Explanation:
Which among these places has the least vertebrates diodiversty?
A. Alaska
B. Amazon
C. Philippines
D. African Safari
Answer:
A. alaska
Explanation: plants don’t survive in the extreme cold and ice that cover these regions year-round.
science questions , may be out of order but please help asap ( about mitosis )
Answer:
1. 2 chromatids, centromere, kinetochore
2. 56
3. It is a haploid gamete
4. Synthesis stage
5. Anaphase
6. G2
7.Cytokenesis
system of layout refers to the design of planting trees
true or false
[tex] \: \: [/tex]
TRUEsystem of layout refers to the designs of planting trees.it is desirable planted in a systemic wayhope it helpswhich abiotic factor starts the phosphorus cycle?
Answer:
Phosphorus moves in a cycle through rocks, water, soil and sediments and organisms. Over time, rain and weathering cause rocks to release phosphate ions and other minerals. This inorganic phosphate is then distributed in soils and water.
Energy from hot magma is called
a magnetic
b. geothermal
C)nuclear
d hydroelectric
Please select the best answer from the choices provided
Answer:
The answer is B.) Geothermal
Which of these is an advantage of factory farming?
O A. Less efficient operation than family farms
O B. More job opportunities than family farms
O C. Smaller profit margin than family farms
O D. More expensive products than family farms
Answer:
B
Explanation:
Answer is not A because this is not a benefit
Not C because it is also not a benefit
not D because it is not a benefit
B is the only benefit listed.
what is the answer to 2x?=2
Answer:
if you're trying to find x then the answer would be x=1 b/c 2 times 1 and 2=2
Explanation:
the study of the function of specific organ systems is called
Answer:
Systemic Physiology
Explanation:
It is the study of the function of specific organ systems.
Answer:
The study of the function of specific organ systems is called Physiology, while Anatomy is the study of the actual structures within an organism.
-TheUnknownScientist 72
(Select all that apply.) The mismatch of a DNA base pair during duplication can result in a _____. recombination mutation change differentiation
Answer:
The answer is change and mutation!
Hope this helps!
Explanation:
Which statement about US greenhouse gas emissions is supported by the bar graph? Emissions decreased every year between 2005 and 2014. Emissions increased substantially between 2005 and 2014. After peaking in 2007, emissions dropped every year through 2014. After peaking in 2007, emissions went up and down through 2014.
Countries often have records of gas emissions in their county. The statement about US greenhouse gas emissions is supported by the bar graph is that after peaking in 2007, emissions went up and down through 2014.
Greenhouse gas emissions often takes place due to the activities of human. These activities acts as a catalyst to powerup the greenhouse effect, causing climate changes.Recorded data of gas emissions has shown that after it peaked in 2007, reduction is said to be of averaged 1.3% per year but the data of U.S. energy-related CO2 emissions in 2019 shows that it was 1.8% greater than in 1990.
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Answer:
D. After peaking in 2007, emissions went up and down through 2014.
Explanation:
EDGE2021
Can someone help me please?!
A family released their pet fish family into a local pond. The fish had no known local population. The impact of the fish on
the ecosystem is not yet known.
Which term would best define the fish added to the pond?
O invasive species
O introduced species
O native species
O symbiotic species
The term that would best define the fish added to the pond is INTRODUCED species. These species may be harmful to native species.
Introduced species are exotic species which has arrived there by human activity, which may be harmful to native species.
Introduced species may even be harmful to the entire ecosystem because they can break the delicate equilibrium of the ecosystem.
Introduced species may compete with native species for limited resources (e.g., water resources, foods, habitat, etc).
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Answer:
To sum it up, it's A "Introduced species"
Explanation:
It's correct. Have a blessed day <3
Do you think the vacuum hose is an effective way to remove sea urchins? Why? Explain at least one way this technology can be improved.
Answer:
No, or at least not yet. there small and dont do much improvment. If they were much bigger and sucked better, including some touch-ups here and there, they would have a bigger effect on removing sea urchins.
Explanation:
No
vaccum hoses are quite small in size.They don't suck sea urchins as per requirement.If they would be bigger and have more sucking power then it can be yes.can you answer this?
Answer:
possibly the second one
Explanation:
not sure
Which Image shows what the cell would look like in the next step?
5
HELP PLEASE!!
A snail moves 1.1 cm/min how far could it travel in 48 min
Answer:
52.8 centimeters
Explanation:
1.1 times 48 minutes is 52.8
Answer:
52.8 cm
Explanation:
1.1 cm/min multiplied by 48 equals 52.8
What percentage of red cross donations go to charity?
Overpopulation can result from _____________
Answer: Overpopulation can result from low mortality rate.
Explanation: Population change is caused by a balance in birth rate and death rate. If the death rate decreases, it will cause a growth in population. I hope this answer helps.
In an ecosystem, organisms use up
chemical energy and most of the
energy is then lost to the
environment as
A. light
B. heat
C. photons
Help, please I'll give brainless but the answer got to make sense
Answer:it’s a machine to weave cloth
Reason: there was too much demand to do it by hand
Importance: it’s important because it changed the way people worked in the textile industry as they didn’t have to weave cloth by hand anymore and it saved tons of time
Reason: there was too much demand to do it by hand
What are Mendel's two laws?
Answer:
1) the law of segregation
2) the law of independent assortment
Explanation:
