Lab: exercise and homeostasis lab report
if anyone has done this pls help
ill give brainliest
Answers
Introduction:
The question that was trying to be answered in this lab was “How does exercise affect a person’s heart rate, breathing rate, and perspiration level?” Based on this question, the hypothesis that was formed was “If effects of exercise and exercise are related, then exercising will increase heart rate, breathing rate, and perspiration level”.
What is homeostasis?Homeostasis refers to the mechanism of the body to maintain a stable internal environment instead of changes taking place in the external environment.
Homeostasis in the body is maintained through three vital organs, as mentioned before, the kidneys, liver, and brain. These regulate the temperature, iron content in our blood, retention, and production of energy and overall blood composition. This was helpful because the whole lab report was based on homeostasis and the effect that it had on exercise.
Materials and Methods:
1. Materials:
a. People to exercise
b. A clock or stop watch
2. Procedure:
Choose one volunteer to complete jumping jacks at a pace that can be maintained for eight minutes. Make sure the volunteer is inactive for a few minutes before the experiment begins.Measure the heart rate by taking his or her pulse, you can do this one of two ways: Radial Pulse, Carotid PulseMultiply the number of beats in 15 seconds by 4 to calculate the beats per minute. Record the data in the table below the 0 minutes box.Measure the person’s perspiration level from 0 to 5: (0 = none; 5 = droplets dripping down the face). Note this observation in the table. Have the volunteer do jumping jacks for 2 minutes. After 2 minutes, measure the heart rate, breathing rate, and perspiration level (refer to steps 2 through 5), and record the data. Measure the pulse, breathing and perspiration levels as quickly as you can so that the volunteer can resume exercise. Do not have volunteer wait while you do the calculations and enter the data. Repeat step 6 three more times (remember, 2 minutes each at a time, totaling 8 minutes) and record your data at each point. After the final recording of the dependent variables, wait one minute with the volunteer at reset. Then measure all of the variables again. Record this data under the “9 Time (Min.) Box”.Analysis:
There is an increase effect of exercise over time on the circulatory and respiratory systems, as shown in both Table 1 and Table 2. As the students began their exercise in two-minute intervals, their heart rates increased on average from 73 beats per minute to 115 beats per minute. Shawn’s individual heart rate began at 84 beats per minute, and after lifting 5-pound weights for 8 minutes, his heart rate increased to 114 beats per minute . Also, his breathing rate showed an increase from 36 breaths per minute to 44 breaths per minute.
Based on this data shown, the amount that you exercise does effect the circulatory and respiratory systems by causing a, on average, dramatic increase in beats/breath per minute in the measured variables.
Conclusion:
According to the data collected, the hypothesis that was developed at the beginning of the experiment: “If effects of exercise and exercise are related, then exercising will increase heart rate, breathing rate, and perspiration levels”; was accepted . Based on the data shown our individual group charts and the class averages, the effect that exercise has on the respiratory and circulatory systems is that it develops an increase in heart rate (Start: 73/ Finish: 115), breathing rate (Start: 38/ Finish: 56), and perspiration levels (Start: 0/ Finish: 1).
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Related Questions
Explain monohybrid and dihybrid cross??
Answers
Monohybrid cross and Dihybrid cross are two genetic crossing methods that are used to study the inheritance of allele pairs.
Explanation:
These are useful in understanding the inheritance of traits from one generation to another. Monohybrid cross is a genetic cross that involves a single pair of genes that is responsible for one trait.
Gregor Mendel was the scientist who is called father of Genetics. He gave the idea of Monohybrid and Dihybrid cross.
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In monohybrid cross, one pair of contrasting characters is inherited from the parents.
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In dihybrid cross, two pairs of contrasting characters is inherited from the parents.
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Which of the following organisms is a third-order consumer in the food web shown above?
Answers
Answer:Humans
Explanation:
its just the answer
3. What is the difference between saponifiable and nonsaponifiable lipids?
Answers
Answer:
the difference is that unsaponifiable lipids do not contain fatty acids at least not as a component of the fundamental structure whereas saponifiable lipids do have fatty acids.
Explanation:
As a further explanation unsaponifiable lipids are lipids that do not contain fatty acids as components of the fundamental structure. On the other hand, complex also known as saponifiable lipids do contain fatty acids, and those fatty acids can be released in a process called saponification which is caused by alkaline hydrolysis.
Which is NOT a homologous feature of
Phylum Porifera?
A. choanocytes- cells that sweep water into the body
B. have true tissues
C. amoebocytes- help support skeletal fibers
D. suspension feeders that filter food out of the water
Answers
The true nucleus is not a homologous feature of Phylum Porifera. So, it's B.
What do you mean by Porifera?Porifera may be defined as superficial invertebrate animals that live in aquatic habitats that comprise the sponges.
Organisms belonging to animals, plants, and fungi only have a true nucleus. The members of the phylum Porifera majorly consist of sponges that have a system of suspension feeders that filter food out of the water.
The members of the phylum Porifera have choanocytes that specify the cells that sweep water into the body.
Therefore, the correct option for this question is B.
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how to write a coma with out two independent clauses
Answers
Answer:
They can be made into one compound sentence with a semicolon alone between the two independent clauses
Explanation:
you can use a semicolon to separate two ideas (two independent clauses) that are closely related
HURRY
Which factors contribute to a country's natural population growth? Select three responses.
O immigration rate
O migration rate
Obirth rate
Odeath rate
Ofertility rate
Answers
Answer:
Birth rate, death rate, and fertility rate.
Which of the following describes how the protozoan Stentor overcomes cell size limitations?
Select one:
a. They have a central vacuole filled with water.
b. They have a string of nuclei.
c. They are supported by a myelin sheath.
Answers
The statement 'They have a string of nuclei' describes how the protozoan Stentor overcomes cell size limitations (Option b).
What are protozoans?The protozoans (kingdom Protista) are unicellular single-celled organisms that generally live in aquatic environments.
The protozoan Stentor is a type of filter-feeding organism, which is heterotrophic and contain cilia.
In conclusion, the statement 'They have a string of nuclei' describes how the protozoan Stentor overcomes cell size limitations (Option b).
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does anybody here know how to edit two pictures into one?
Answers
Answer:
possibly depending on what you want
Explanation:
a pharmaceutical company has developed a new weight loss drug for women. preliminary tests show that the drug seems to be fairly effective in about 75% of test subjects. the drug company thinks that the drug might be most effective in overweight women, but they are unsure to whom they should market the product.
use the scientific method to address the pharmaceutical company's needs:
4a. state a research question
4b. conduct online research on "body mass index" categories. record pertinent information and cite your sources
4c. construct a testable hypothesis
4d. design an experiment to test the hypothesis. be as specific as possible in describing what will be observed or measured
Answers
In this case, the scientific method can be used to confirm weight loss in 75% of cases by a preclinical assay.
What is a research question?A research question is a given question that can be solved by using the scientific method (e.g., can this drug be used to loss weight?).
A hypothesis is a given explanation of an observation from a question of the real world (in this case, the target drug is effective 75% of cases).
The experimental procedure, in this case, may involve taking two sample populations and supplying the target drug to one to observe if is statistically associated with weight loss.
In conclusion, in this case, the scientific method can be used to confirm weight loss in 75% of cases by a preclinical assay.
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What are Exxon-Valdez and Deepwater Horizon?
A. The new desalination plants in California to fight the drought.
B. The source of massive oil spills.
C. Solar energy companies set to end reliance on oil.
Answers
Select the correct answer from each drop-down menu. complete the paragraph based on this food chain: polar bears feed on seals. so, polar bears and seals share a . climate change has caused ice caps to melt in colder regions where polar bears live. this change has made it harder for polar bears to successfully hunt seals. this situation will lead to .
Answers
Extinction occurs due to the climate change in the polar regions of the earth.
What is the effect of climate change on polar regions?Climate change causes melting of ice caps in colder regions where polar bears live. This change has made it harder for polar bears to successfully hunt seals. This situation will lead to extinction of polar bears in this location because they can't get their food which leads to their death.
So we can conclude that extinction occurs due to the climate change in the polar regions of the earth.
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Answer:
- prey-predator relationship
- increased biomass in the quaternary level
Explanation:
:)
can you answer this question pls
Answers
Answer:
Tumor's are formed by a rapid cell division and is given many immature cells. But by preventing mitosis it will prevent the formation of growth of new cellls and will hence the growth of a tumor.
Hope this helps :))
Why will the demand for fossil fuel have to change in the future?
Answers
Why will the demand for fossil fuel have to change in the future
Answer-
The demands of fossil fuel have to change in the future
because the Earth would eventually run out of them do to high
demand. (Fossil Fuel consumption- 86% of energy generated in the U.S)
Many people depend on fossil fuel more than any type of enery source.
Ex (Most people use them for gas for there car)
Designer drugs are classified as drugs that. A.Have medical use
B. Are synthetically created
CAren't Addictive
D. All of the above
Answers
One of the significant adaptations to prevent drying out in the land environment was the development by vascular plants of (a)
Answers
Answer:sun eating plant
Explanation:
Prokaryote cells have three basic parts.
True
False
Answers
Answer:
true
Explanation:
Which of the following characteristics is true of dicot plants?
netted pattern of leaf veins
two cotyledons in seed
vascular bundles arranged in a circle
All of these choices are correct.
Answers
Dicot plants are the plants having two cotyledons as the name suggest. In these plants, the veins of the leaf have a net-like appearance, forming a pattern known as reticulate venation, and the vascular bundles arranged in a circle, i.e., option D, all choices are correct.
What are the examples of dicot plants?Most dicot plants are common garden plants, shrubs and trees, and broad-leafed flowering plants such as magnolias, roses, and geraniums.
These typically also have flower parts which are based on a plan of four or five or multiples with some exceptions.
They have net leaves vein pattern, two cotyledons, and ring shaped vascular bundles.
Thus, the correct option is D.
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What are the possible allele combinations the following parent to give to their offspring?
*Note: distribute
YyRr
Answers
Answer:
bb or BB
Explanation:
it depends on what the examiner gives you
Antiangiogenesis drugs act on a malignant tumor by: a. promoting the immune response and removal of abnormal tumor cells. b. blocking hormonal stimulation of tumor cells. c. reducing blood flow and nutrient supply to tumor cells d. transporting radioisotopes into the tumor.Antiangiogenesis drugs act on a malignant tumor by: a. promoting the immune response and removal of abnormal tumor cells. b. blocking hormonal stimulation of tumor cells. c. reducing blood flow and nutrient supply to tumor cells d. transporting radioisotopes into the tumor.
Answers
Answer:
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hx.gz.gz.x.ys.yzmysmyd.hdh. It
It has
It has 4ixntsmgzxxxskria
Explanation:
During this time around the country and its a great deal with the same time, the first of which is the same as that of a new generation of the world and I have been using this method is to provide a more detailed description of a new generation and the second half of the season ❄️ the same as the one that is 8️⃣ the same as the first one to be a part of this is the best way ↕️ the same as the first time I have to say that the government has been the subject of a few of them are not the only ones that are in the process of being able to do it in a way that makes it a little bit of his life in a way ↕️ the first time I have to say I was in the middle of the day and night and I have been a little bit more about this and the other hand, the first of which is the same as that of a few of them are not the only ones that are in the process of being able to do that is the case for the first time in the past few ja and the second half of the season and the second half of the season ❄️ the first time I have to say I was in the middle of the day and night and day of the year and a half years ago when I get home from work the first time I have to say I was in the middle of the day and night
Imagine a balloon is made from a membrane that's permeable to water but not sucrose molecules. If the balloon is filled with a pure water and then placed in a beaker of 50% sucrose solution, then the balloon will
Answers
The size of the balloon would increase.
Describe what happens during interphase
Answers
Answer:
the cell grows and the nuclear DNA is duplicated
Answer:
DNA replication takes place during interphase
What happens during glycolysis? A. Hydrogen is removed from water. B. Carbon dioxide is produced. C. Glucose is split into two molecules of pyruvic acid.
Answers
Answer:
I'm pretty sure its C. Glucose is split into two molecules of pyruvic acid
an engine cut-off lanyard helps to reduce the risk of what?
Answers
propeller injury
An engine cut-off lanyard helps to reduce the risk of striking a person in the water with a propeller. The correct answer is option 2.
A propeller is a device with rotating blades that is used to propel a vehicle through a fluid, such as air or water. In the context of boating, a propeller is a rotating device that is attached to an engine and used to propel a boat through the water.
An engine cut-off lanyard is a safety device that is attached to the operator of a boat and to the engine's kill switch. If the operator is thrown from the boat, the lanyard will pull the kill switch, stopping the engine and preventing the propeller from causing injury to the operator or others in the water.
Therefore, an engine cut-off lanyard is an important safety feature that can help prevent accidents and injuries on the water. Option 2 is the correct answer.
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The given question is incomplete. The complete question is:
An engine cut-off lanyard helps to reduce the risk of what?
1. Stopping the engine if the oil level gets low·
2. Striking a person in the water with a propeller·
3. Starting the engine without proper choke applied·
4. Over-revving an outboard engine at idle
Which protists are heterotrophs?
(Hint: Heterotrophs cannot make their
own food.)
A. fungus-like and plant-like protists
B. plant-like protists
C. animal-like and fungus-like protists
D. plant-like and animal-like protists
Answers
Which statements describe social behavior? Check all that apply.
Social behavior refers to the interactions that occur between two or more members of different species.
Social behavior refers to the interactions that occur between two or more members of the same species.
Social behavior refers to all of the interactions that occur between animals.
All animals are extremely social and form social groups. O Some animals are extremely social and form social groups.
Answers
Answer:
What are the characteristics of social behaviour?
General characteristics
Social behaviour ranges from simple attraction between individuals to life in complex societies characterized by division of labour, cooperation, altruism, and a great many individuals aiding the reproduction of a relative few.
Explanation:
.
What is biological evolution?
Answers
A change in the properties of groups of organisims over many generations.
Answer:
Biological evolution is the change in inherited traits over successive generations in populations of organisms
what type of organisms take in atmospheric carbon dioxide?
Answers
Why is it more difficult to treat a malignant tumor than a benign tumor?
Answers
Answer:
Explanation:
Benign tumors also usually don't need treatment. If the tumor is impacting a nearby area or causing other problems, you may need surgery to remove it. Cancerous tumors almost always require treatment with surgical removal, radiation therapy, or chemotherapy.
Describe how flowering plants reproduce.
Answers
Answer:
Pollen is carried by insects or blown by the wind from one flower to another. This process is called pollination. Pollen reaches the new flower and travels to the ovary where it fertilises egg cells (ovules) to make seeds. This is fertilisation.
Explanation:
Marshall made the following table to compare the functions of physical structures in plants and animals:
Function Animal Structure Plant Structure
Provides support for the organism Skeleton
Exoskeleton Stem
Reproductive organs Testes
Ovaries Stamen
Pistil
X Skin
Fur
Feathers Waxy Covering
Bark
Which of the following should replace X?
Protect the internal organs of the organism
Protect the organism from harsh conditions
Transports water throughout the organism
Involved in reproduction of the organism
Answers
Answer:
The answer is Pistil
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Explanation:
