Without autonomic nervous system input resting heart rate would be approximately?Answer choices:a. 70−80 beats/min b. 50−60 beats/minc. 100−120 beats/min d. 200−220 beats/min
Answers
Answer:
10000/76 x 76 = 100089
Explanation:
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Related Questions
melissa recently noticed that she has more body hair and is starting to get pubic hair. these change are known as:
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Melissa is experiencing signs of puberty, specifically the development of body hair and pubic hair.
During puberty, the body goes through various physical changes as it transitions from childhood to adulthood. One of the prominent changes is the development of secondary sexual characteristics, which include the growth of body hair and the appearance of pubic hair.
The growth of body hair, such as an increase in the amount and thickness of hair on the arms, legs, underarms, and other parts of the body, is a normal part of sexual maturation. It is influenced by hormonal changes, particularly the increase in androgen hormones like testosterone in both boys and girls.
Additionally, the development of pubic hair, which refers to the hair that grows in the pubic region, is another indicator of puberty. It is typically one of the early signs of sexual maturation and occurs in both males and females.
These changes in body and pubic hair are part of the natural progression of puberty and signify the onset of physical maturation and sexual development.
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How are cellular respiration and breathing related?
A.) Breathing provides and removes gases for cellular respiration.
B.) They are not related at all.
C.) They are both part of photosynthesis.
D.) They are the same (synonyms of each other).
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Explanation: Two steps out of three require oxygen in cellular respiration. Breathing provides this oxygen needed. At the end of cellular respiration, it releases CO2 (carbon dioxide). Breathing removes this gas.
Did anyone take this quiz???
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The cell theory states that the cell is the most basic unit of life, all organisms are made of cells and all cells come from cells. What makes the cell theory a scientific theory.
A) it is based on a scientific publication that is read by scientists worldwide.
B) it is based on the work of many scientists and leads to accurate predictions.
C) it is based on ideas that have been proven true and that are not subject to revision.
D) it is based on preliminary evidence but still needs to be confirmed with experiments.
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Hope this help!
We were briefed about cell theory which explains how cell is the basic unit which life is made on, and how all organism are product of a cell, what actually made this theory to be considered a scientific theory is
B: it is based on the work of many scientists and leads to accurate predictions.
A scientific theory can be regarded as as broad explanation which is set and widely accepted because there are alot of evidence that supported it.Scientist to accept vaques, any theory must be proved with actual evidence , and all experiment should be true and accurately.
In cell theory, we can see that cell serve as the basic unit , this is proved because we human contains millions of cells in our body.Therefore, option B is correct
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Which statement is NOT true about chlorophyll?
1. It makes leaves green
2.it turns into glucose during photosynthesis
3.it absorbs light from the sun
4.it is found in the chloroplasts
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What DNA sequence would code for the amino acid methionine?
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Consequently, methionine is the first amino acid to dock in the ribosome during the synthesis of proteins.
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How might bird species A and B come into contact with DDT, a pesticide used by farmers. Please answer this quick.
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Which is the reproductive strategy to produce as many offspring as possible in a
short time period in order to take advantage of some environmental factor?
k-strategy
l-strategy
r-strategy
s-strategy
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The correct answer is C . r-strategy , reproductive strategy to produce as many offspring as possible in a short time period is r-strategy.
What are R and K's reproductive tactics?In population biology mathematics, the phrases "r-strategy" and "K-strategy" denote two positions on a spectrum where gamete production and lifespan engage in a compensatory exchange (the K-strategy).
What are two methods of reproduction?Sexual reproduction occurs whenever the genetic material from two persons is mixed to produce genetically diverse children, as opposed to asexual reproduction, which occurs when one individual creates genetically identical offspring.
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Groups of specialized cells working together are called.
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What causes temperature fluctuations in intertidal habitats? And the subject is marine biology/science but that wasn't provided
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How do I calculate oxygen consumption for different heart rates of a 70 kg person? I know they're linearly related but I was not able to find anything that would help me find a value. I could only find some graphs but they're not very specific or numbers can't be attained.
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To calculate oxygen consumption for different heart rates, you can use an estimation equation called the Fick equation. The Fick equation relates oxygen consumption (VO2) to cardiac output (Q) and arteriovenous oxygen difference (A-VO2 diff):
VO2 = Q × A-VO2 diff
where:
VO2 is the oxygen consumption in milliliters per minute (ml/min)
Q is the cardiac output in liters per minute (L/min)
A-VO2 diff is the arteriovenous oxygen difference in milliliters of oxygen per 100 milliliters of blood (ml O2/100 ml blood)
The cardiac output (Q) can be estimated by multiplying the heart rate (HR) by stroke volume (SV):
Q = HR × SV
To estimate the arteriovenous oxygen difference (A-VO2 diff), you can assume a typical resting value of approximately 5 ml O2/100 ml blood.
Now, let's go through an example calculation for a 70 kg person:
Determine the resting heart rate (HRrest) and stroke volume (SVrest) for the person. Typically, at rest, the average heart rate is around 60-80 beats per minute, and stroke volume is around 70 ml/beat. Let's assume HRrest = 70 bpm and SVrest = 70 ml/beat.
Calculate the resting cardiac output (Qrest):
Qrest = HRrest × SVrest
= 70 bpm × 70 ml/beat
= 4900 ml/min
= 4.9 L/min
Calculate the oxygen consumption at rest (VO2rest):
VO2rest = Qrest × A-VO2 diff
= 4.9 L/min × 5 ml O2/100 ml blood
= 245 ml O2/min
Determine the heart rate at which you want to calculate the oxygen consumption. Let's assume you want to calculate it at a heart rate of 100 bpm (HR = 100 bpm).
Calculate the cardiac output (Q) at the given heart rate:
Q = HR × SV
= 100 bpm × 70 ml/beat
= 7000 ml/min
= 7 L/min
Calculate the oxygen consumption (VO2) at the desired heart rate:
VO2 = Q × A-VO2 diff
= 7 L/min × 5 ml O2/100 ml blood
= 350 ml O2/min
So, at a heart rate of 100 bpm, the estimated oxygen consumption for a 70 kg person would be 350 ml O2/min.
Please note that these calculations are based on estimations and average values. Actual oxygen consumption can vary depending on individual characteristics, fitness levels, and other factors.
To calculate oxygen consumption for different heart rates of a 70 kg person, use the Fick's principle which involves calculating the maximum cardiac output and then dividing it by the arterial-venous oxygen difference. Finally, divide the resulting oxygen consumption by the body weight of the person.
Explanation:The calculation of oxygen consumption for different heart rates of a 70 kg person can be determined using Fick's principle.
First, determine the maximum cardiac output (CO) which can be calculated as the product of heart rate (HR) and stroke volume (SV).Next, calculate the oxygen consumption (VO2) by dividing the CO by the arterial-venous oxygen difference (A-VO2 difference).Finally, calculate the oxygen consumption rate (VO2 rate) by dividing the VO2 by the body weight of the person.For example, if the maximum HR is 150 bpm and the SV is 130 mL, the CO would be 19.5 L/min. If the A-VO2 difference is 5 mL of oxygen per 100 mL of blood, and the body weight is 70 kg, the VO2 would be 9.75 L/min. Finally, the VO2 rate would be 0.139 L/min/kg.
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Identify the dependent and independent variable in each of the examples below: 1. White mice are fed a treat every time they manage to ring a bell. The time required for the mice to learn the task is measured. 2. The diversity of fish in a stock pond is measured before and after the introduction of nitrogen fertilizers (such as would occur when excessive fertilizer is used on crops). 3. Batches of radish seeds are subjected to radiation in a microwave oven for 15 sec, 30 sec, 45 sec, and 60 sec. The seeds are then allowed to germinate and the percentage of successful germination is recorded.
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Answer:
1. IV: Time the Bell is rang DV: Time it takes to learn the task
2. IV: Nitrogen fertilizers DV: Diversity of fish
3. IV: Time of radiation DV: Percentage of successful germination
Explanation:
The independent variable of an experiment refers to the variable that the experimenter manipulates or changes in order to effect a measurable response in the dependent variable while the dependent variable is the variable that responds to the changes made to the independent variable.
1. In scenario 1, the TIME THE BELL RINGS is the independent variable because that is what the experimenter controls or has power to change. On the other hand, the dependent variable is the TIME IT TAKES TO LEARN THE TASK because it is the measured variable that responds to the independent variable.
2. In scenario 2, the USE OF NITROGEN FERTILIZER is the independent variable while the DIVERSITY OF FISH is the dependent variable.
3. In case 3, the TIME OF RADIATION is the independent variable while the PERCENTAGE OF SUCCESSFUL GERMINATION is the dependent variable.
At what location is the star with the greatest initial mass most likely to be found?
Location A
Location B
Location C
Location D
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Answer:
I would say A or B.
Explanation:
D is incorrect
True or false: Osseous connective tissue is the only tissue type found in bones. True false question. True False
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Answer:
False
Explanation:
If you were making observations of someone mixing two substances together, how would you know if a chemical reaction took place?
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if you were making an observation of two substances, The five conditions of chemical change would be color chage, formation of a precipitate, formation of a gas, odor change, temperature change. i hope this helps
The phenomenon where rare traits are found in abundance in a new or recently isolated location is called
Answers
Answer:
This phenomenon is known as Exaptation.
Explanation:
This phenomenon occurs in both anatomy and behavior and serves to provide an advantage to the organism or specie that undergoes exaptation. It is a process that can be considered as an opposite to adaptation.
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Write the electronic configuration of any one pair of isotopes and isobars.
Answers
Answer:
Isotopes of carbon:(_16^12)C and (_16^13)C12
6C and 13
6C Electronic configuration is 2,4 because both the
atoms have the same atomic number and the same number of electrons as 6.
Isobars:
(_20^40)Ca - 2,8,8,2 as atomic number is 20 and 40
(_80^40)Ar- 2,8,8 as atomic number is 18
Explanation:
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what energy carrying molecule is created when the chemical bonds of glucose are broken
Answers
By oxidizing glucose and other dietary molecules in a step-by-step manner, ATP and NADH are produced as chemical energy.
What is ATP?
A vital "energy molecule" present in all living things is adenosine 5′-triphosphate, also known as ATP and typically written without the 5′-. In particular, it is a coenzyme that transfers energy to cells by releasing its phosphate groups when it interacts with enzymes like ATP triphosphatase.
By adding a phosphate group to another molecule, ATP can drive biological operations (a process called phosphorylation). Special enzymes are responsible for carrying out this transfer, which connects the cellular processes that need energy to the release of energy from ATP.
A variety of cellular functions, such as ion transport, muscular contraction, the transmission of nerve impulses, substrate phosphorylation, and chemical synthesis, all require energy and hence use ATP. A large demand for ATP is generated not just by these processes but also by others.
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Which of the following is the best example of an ecosystem service?
a. the state provides free maintenance of highway medians keeping the landscape beautiful
b. bacteria live in a termite’s gut allowing the termite to be able to digest wood
c. oceans act as a giant thermostat, interacting with the atmosphere and land to control Earth’s climate
d. tropical forests are removed to provide suitable land for subsistence farming
e. sand dunes provide the perfect "front yard" as human development expands to the coastline
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An ecosystem service refers to the goods and services that come from nature, including air, water, food, and climate regulation. The best example of an ecosystem service is option c. oceans act as a giant thermostat, interacting with the atmosphere and land to control Earth’s climate.
Oceans play a vital role in regulating the climate, and they provide an essential ecosystem service. They absorb and store large amounts of carbon dioxide, which helps to regulate the global climate by keeping the planet from overheating. Additionally, they provide food and habitat for millions of species, and they generate half of the oxygen that we breathe. Without oceans, life on Earth would not be possible.
The state provides free maintenance of highway medians, and sand dunes provide the perfect "front yard" as human development expands to the coastline. These are not examples of ecosystem services. Similarly, when tropical forests are removed to provide suitable land for subsistence farming, it can lead to soil erosion and deforestation, which can have devastating effects on local ecosystems.
Finally, bacteria live in a termite’s gut, allowing the termite to be able to digest wood. This is not an example of an ecosystem service, but rather an example of a symbiotic relationship between two organisms. Therefore, the best example of an ecosystem service is when oceans act as a giant thermostat, interacting with the atmosphere and land to control Earth’s climate.
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The biosphere is part of the carbon cycle, but what if there were no biosphere? Is the biosphere necessary for the carbon cycle? In 3-5 sentences, explain why or why not. answer needed soon please help
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Answer:
The carbon cycle describes the way the element carbon moves between the Earth's biosphere, hydrosphere, atmosphere, and geosphere. It is important for a few reasons: Carbon is an essential element for all life, so understanding how it moves helps us to understand biological processes and factors that influence them.
Explanation:
The biosphere is the ecosphere that contains the biotic and abiotic factors and the energy and the nutrient flow between them. It is the region of the earth that is composed of life and matter.
Yes, the biosphere is necessary for the carbon cycle.
The importance of the biosphere:The biosphere is essential as it maintains and provides the environmental circumstances for living organisms. The plants and animal-related activities that contribute to the carbon cycle occurs here.The plant in the biospheric region utilizes the carbon dioxide for the process of food and energy production while the animals release the carbon dioxide back into the atmosphere by the process of exhalation.Therefore, the biosphere is part of the carbon cycle.
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What is the correct answer?
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Answer:
220 may be the answer of this question
Answer: the first one cause 440 times 2 is 880 so that is the correct answer
Explanation:
The weather conditions at a given place over a long period of time is known as __________.
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Answer:
Climate
Explanation:
Weather is like day to day, but climate is the average weather.
For example, the Climate in South Texas is hot, humid in the summer.
Did this help!?!
Answer:
Climate
Explanation:
The 2nd step of the Central Dogma is called ____________________. In this process, first the enzyme ____________ unwinds the DNA strand at the ______________________.Then, the enzyme ________________ latches on the open section of the genes of DNA that needs to be read and adds in nucleotides to make the __________ strand; which contains the decoded information of DNA. This enzyme adds adenine to ____________, cytosine to ____________. The nucleotide uracil replaces ______________ that is in DNA but not in RNA. In the last step, RNA polymerase reaches the end of the gene sequence and breaks apart from the DNA template strand to take the message made to a ribosome to produce a ___________ from it. Other types of RNA are ______ which stands for ____________________ and _____ which stands for ________________.
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We have to know that the central dogma of the molecular biology is about how the information flows from DNA to proteins. This way we have the following:
We can see here how the 2nd step of the central dogma is the transduction from
Which of the following indicates that all organisms can be traced back to a common ancestry?
A. almost all genes in microorganisms plants and animals have the same codons
B. the genetic code consists of nucleotides and triplet codes
C. there are a few organisms that respond differently to the start and stop signals in the genetic code
D. microorganisms contain codons and anticodons
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A proof of common ancestry of all organisms is that almost all genes in microorganisms plants and animals have the same codons.
What is evolution?Evolution refers to the gradual, cumulative and inheritable changes that occur in organisms over a long period of time leading to the formation of new species.
By means of evolution, all organisms which originated from a common ancestor were formed.
An indication of the fact that all organisms can be traced back to a common ancestry is that almost all genes in microorganisms plants and animals have the same codons.
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What happens to an atom decays?
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Answer:
If it decays by alpha decay, it will become an atom with 2 fewer protons and 2 fewer neutrons than the original atom. If the atom decays by beta minus (electron) decay, it will become an atom with one less neutron and one more proton than the original atom.
Explanation:
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True or false: Most muscles contain a combination of all three muscle types, slow oxidative, fast oxidative, and fast glycolytic.
Answers
Thanks to what we know about muscles and the fibers they contain, we can confirm that the statement in the question is in fact true.
Muscle is a type of tissue which due to coordinated systems that make up their composition, have the ability to contract. This ability allows for greater efficiency. In humans, the muscle systems are classified into three kinds:
Cardiac muscleSkeletal muscleSmooth muscleDespite the different classifications and functions of each muscle type, each of these muscles contains a combination of three types of muscle fibers, which are the fibers listed in the question:
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A cell in which homologous chromosomes arrange in pairs along the equator of the cell is in what stage of cell division?
Answers
Metaphase 1-The chromosomal pairs subsequently align themselves along the equator of the cell, forming the metaphase plate, with the assistance of these microtubules.
What occurs during metaphase 1?The so-called metaphase plate is formed at metaphase I, when homologous chromosomes relocate to the cell's center and align themselves along an equatorial plane.
What features does metaphase 1 have?During meiosis, Metaphase 1 contains the following characteristics: The spindle spans the entire cell. Along the spindle's equator, homologous chromosomal pairs are aligned. Each pair of chromosomes has one on either side of the equator.
What transpires to DNA in the first metaphase?A chromosome possesses a tetrad (4 chromatids or 4 DNA molecules) during prophase I and metaphase I of meiosis, which is reduced to two chromatids (2 DNA molecules) by metaphase II occur.
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When the left ventricle contracts, the distance from the apex to the base
A) decreases.
B) increases.
C) remains unchanged.
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When the left ventricle contracts, the distance from the apex to the base decreases. The correct option is A.
When the left ventricle contracts, it undergoes a process known as systole, during which the ventricle contracts and pumps blood out into the aorta.
During systole, the left ventricle decreases in volume and, as a result, its length from the apex to the base also decreases.
This is due to the fact that the muscle fibers in the ventricle shorten and thicken, causing the ventricle to contract.
In contrast, during diastole, which is the relaxation phase of the cardiac cycle, the ventricles fill with blood and their length from apex to base increases.
Therefore, the correct option is A) Decreases.
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Does oxygen get cycled in the atmosphere on earth? How?
Answers
Answer:
what is the potential difference across electrical load that have risistance of 4 and a current of 3 A following through it
Answer:
Yes
Explanation:
oxygen is taken out of the air photosynthesis, then photosynthesis produces organic molecules that contain oxygen... through respiration and decay of living organisms, oxygen enters the lithosphere
5 countries with Very low undernourishment
Answers
Answer:
NIGERIA
AFGHANISTAN
CHAD
TIMOR-LESTE
MADAGASCAR
Explanation:
Afghanistan
Chad
Madagascar
Timor- Leste
:))