NEED HELP ASAP ILL GIVE 100 POINTS!!!

Pre-Lab Information
Purpose Plan an investigation to examine how heart rate changes during and after an exercise is
performed for two different periods of time.
Time Approximately 60 minutes
Question How does heart rate change during and after an exercise is performed for two different
periods of time?
Hypothesis In the space below, develop a hypothesis that will test the question.

Summary In this experiment, you will work with a partner to measure each other’s heart rate before
and after exercise. You will start by determining each other’s resting heart rate. Then, you
will do an exercise for a specific amount of time, measure each other’s heart rate
afterward, and then determine each other’s recovery period. You will then repeat this
procedure with the same exercise but for a longer period of time. You will choose the
type of exercise performed during the experiment as well as the two durations of time.
Student Guide (continued)

Background Information
It is time to get you thinking about the effects of exercise on heart rate. The experiment you will devise
should examine the changes in heart rate after an exercise is performed for two different periods of time.
You and your partner will need to determine each other’s heart rate before and after exercise as well as
each other’s recovery period. Your teacher will let you know what materials are available. You and your
partner should plan your investigation around these.
To find your heart rate, use the tips of your index and middle fingers to press lightly over the blood
vessels in your wrist or neck. Depending on the individual, sometimes one area is better for feeling pulse
than the other. Count your pulse for ten seconds. Multiply the number of pulses by six to find your number
of beats per minute.
Lab Procedure
Here is an outline of the steps you should follow to plan your investigation for this lab. Later in the guide,
you will have space to develop your ideas, collect data, analyze and discuss results, and draw
conclusions.
Step 1: Determine the types of data you will gather and the tools of measurement you will use to
collect the data.
How will you gather data for your experiment? If gathering quantitative data, you may want to
devise a table in which you can record your results in an organized manner. Also, consider how
you will record any qualitative or descriptive data in addition to your numerical results. You
should use a pencil to record data.
Step 2: Devise an experiment to examine the effects of exercise on heart rate for two different
periods of time.
Develop the main steps and describe how you will run the experiment. Your teacher will guide
you on what materials are available for your experiment.
Step 3: Stop. Have your teacher sign off on Steps 1 and 2 before you continue the investigation.
Step 4: Gather materials and set up your experiment.
Now that you know what you will do, gather the necessary items. Besides the objects you will
experiment with, make sure you have the necessary equipment to take measurements. If you
are working with lab partners, make sure each person knows his or her role in running the
experiment. Check your setup and make sure everything is in order before you proceed.
Step 5: Run your experiment.
As you proceed with your experiment, make sure you record all the necessary data and, if
working in groups, the role each student performed during the experiment. Make sure all
elements of your experiment are complete. Do not forget to clean up when you are done!
Step 6: Use the High School Lab Report Guide to write your lab report.
Student Guide (continued)

Examine the effects of exercise on heart rate for two different periods
of time.
Step 1: Determine the types of data you will gather and the tools of measurement you will use to
collect the data.
Make a list of the type of data you plan to collect. If gathering quantitative data, you may want to
devise a table in which you can record your results in an organized manner.
Student Guide (continued)

Step 2: Devise an experiment to examine the effects of exercise on heart rate for two different
periods of time.
Write the steps of your experiment.
Step 3: Stop. Have your teacher sign off on Steps 1 and 2 before continuing the investigation.
Student Guide (continued)

Step 4: Gather materials and set up your experiment.
Gather the necessary items and equipment. If you are working with lab partners, make sure
each person knows his or her role in running the experiment. Document the roles here.
Student Name Role
Student Guide (continued)

Step 5: Run your experiment.
Record your data and observations in the space below. Do not forget to clean up when you are
done!

Step 6: Use the High School Lab Report Guide to write your lab report

If you see red nucleated cells and purple rods in the sample of pus from a patient's urethra, then you can conclude that the patient may have gonorrhea.

Gram staining is a laboratory technique used to identify and classify bacteria. The bacteria are classified into two types based on the structure of their cell wall. The Gram-positive bacteria appear purple or violet, and the Gram-negative bacteria appear red or pink. The process of Gram staining begins by placing the specimen on a slide and then drying and heating it. Next, a crystal violet stain is added, followed by an iodine solution.

Gonorrhea is caused by the bacteria Neisseria gonorrhoeae, which is a Gram-negative diplococcus bacterium. The red nucleated cells are likely to be white blood cells, which are produced by the body's immune system to fight infection. Gonorrhea is a sexually transmitted disease that can cause a range of symptoms, including painful urination, discharge, and pain or swelling in the testicles or vulva.

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Answer:

The answer is; c

It is important to distinguish between codominance and incomplete dominance.

In incomplete dominance, the two alleles blend with each other in phenotype  giving offspring with intermediate phenotypes, hence offspring would produce pink flowers, in this case.

In codominance, both alleles are simultaneously expressed in phenotype in the offspring. Therefore flowers, in this case, would exhibit both red and white colors.

Explanation:

Answer:

because it can be very dangerous depending on the animal

Explanation:

hope this helps

Answer:

Because in wild life reserve, endangered animals are protected. So, people are not allowed to enter the Wild reservers

Abiotic factors for the Great Barrier Reef The Great Barrier Reef is one of the world's largest coral reef systems, stretching over 2,300 kilometers off the coast of Australia.

It is the habitat of numerous marine species and an essential tourist attraction. Abiotic factors are nonliving components of the environment that affect living organisms, such as light, temperature, water, and climate. Below are some abiotic factors for the Great Barrier Reef : Temperature: The temperature of the water is one of the most crucial abiotic factors affecting the Great Barrier Reef. The temperature of the reef's water should not exceed a specific range for coral to thrive.PH levels: The pH levels of the water are essential in maintaining a healthy environment for the reef organisms to thrive. Coral reefs need an alkaline environment to survive.

Light: Sunlight is another essential abiotic factor that affects the Great Barrier Reef. Coral reefs require sunlight for photosynthesis, the process by which they create their food.Water: Clean water is an essential factor in maintaining the health of the reef. Any contamination or pollution can lead to the death of reef organisms.Wave intensity: The intensity of the waves affects the distribution of coral reefs in the Great Barrier Reef. High wave intensity can cause physical damage to the reefs, whereas low wave intensity can cause the accumulation of sediments that can affect reef organisms.The availability of dissolved oxygen: The amount of oxygen dissolved in water is another essential factor for the Great Barrier Reef. The amount of oxygen present determines the ability of reef organisms to breathe and survive.

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When a circular DNA gets underrotated by the action of cellular enzymes, the DNA is said to exhibit Negative supercoiling.

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Answer: The correct answer is choice D.

Explanation: We can see on the cladogram that these two are in the same branch and lead to the same common ancestor. These two happen to share the most recent common ancestor, however.

Humans exhibit k-selected species patterns because of their reproductive strategy. K-selected species have a low reproductive rate and invest a lot of time and resources into raising their offspring. Humans exhibit this pattern because we have a relatively low reproductive rate compared to other animals and invest a significant amount of time and resources into raising our offspring.

We typically have one or two offspring at a time and spend years caring for them, ensuring they receive proper nutrition, education, and socialization. Additionally, humans have longer lifespans than many other animals, allowing us to continue investing in our offspring's well-being well into their adulthood. Overall, our reproductive strategy favors quality over quantity, making us an example of a k-selected species.

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If Dr. Wagner has discovered a disease-causing agent with double-stranded RNA, she is likely studying a virus in the Reoviridae family, or a similar group of viruses.

Reoviruses are a family of viruses that are known to have double-stranded RNA genomes. They are common pathogens in humans and animals, and can cause a variety of illnesses, including respiratory infections, gastroenteritis, and viral meningitis. There are also other viruses that can have double-stranded RNA genomes, such as the Birnaviridae family and the Totiviridae family, among others. However, the Reoviridae family is the most well-known and common group of viruses with double-stranded RNA genomes, and is therefore the most likely candidate for the agent that Dr. Wagner is studying. It's worth noting that not all viruses have double-stranded RNA genomes. Some viruses have single-stranded RNA, while others have DNA genomes. The type of genome a virus has can have important implications for how it replicates, infects cells, and causes disease.

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Answer:

1.  Diffusion

2. Osmosis

3. Diffusion

4. Facilitated Diffusion

5. Osmosis

6. Diffusion

Explanation:

Facilitated Diffusion- Move molecules across the cell membrane in a passive transportation with  membrane protein.

Osmosis- Move water molecules from high concentration to low concentration.

Diffusion- Evenly spread molecules from high concentration to low concentration.

1. Gases move across the room with ease without energy.

2. Water enter skin cells allowing cells to grow and wrinkle without energy.

3. Gases move with ease without energy.

4. Glucose requires energy to transfer.

5. Water leaves throat when concentration outside of throat is less that that inside the trough so water moves outwards.

6. Oxygen is uses passive diffusion does not require energy and will with ease move in and through a cell.

Answer:

option c. produce their own light.

If a portion of a transcription factor's domain is the same in a variety of organisms, it is called a motif---- True

A motif is a recurring sequence of DNA or amino acids that occurs in various proteins and enzymes. Motifs are generally used in protein interactions and transcription factor binding, as well as other biological activities.

Some motifs are conserved across species, meaning they are identical or similar between organisms.Therefore, if a portion of a transcription factor's domain is the same in a variety of organisms, it is called a motif.

The DNA-binding domains of transcription factors often include motifs that bind to specific nucleotide sequences. These motifs are important for regulating gene expression, as well as other functions in the cell.

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In the male reproductive system, there are three columns of er.e.c.tile tissue that play a crucial role in s.e.x.u.a.l function. These er.ec.tile tissues are responsible for the process of e.re..c.tion, which allows the p.e.n.i.s to become firm and erect during s.e.x.u.a.l a.ro.usal.

The correct option is C.

The two dorsally located columns are called the cor.p.ora cav.e.rnosa, and they are situated on the upper side of the p.e.ni.s. The c.o.r.p.o.r.a cavernosa are composed of spongy tissue that contains numerous blood vessels and sinuses. During s.e.x.u.a.l ar.o.u.sal, these blood vessels dilate, leading to an increase in blood flow into the corpora cavernosa. This influx of blood causes the p.e.n.i.s to become e.r.e.c.t.

The ventrally located column is called the co.r.pus spongiosum, and it runs along the underside of the p.e.n.i.s. The corpus s.p.o.ng.iosum also contains spongy tissue, but it has an additional important function.

Hence , C is the correct option

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Explanation:

Title is no use in graph

hope it's is right

The antigen most likely to be involved in hemolytic disease of the newborn is Kell.

The antigen most likely to be involved in hemolytic disease of the newborn is 4) Kell. This is because the Kell antigen can cause an immune response in the mother, leading to the production of antibodies that can cross the placenta and attack the red blood cells of the fetus, resulting in hemolytic disease.

Erythroblastosis fetalis, commonly known as hemolytic disease of the newborn (HDN), is a blood illness that develops when a mother and her unborn child have different blood types. Due to improvements in early detection and treatment, HDN is very rare in the United States, with just 4,000 cases reported annually.

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Answer:

B

Explanation:

because respiration

is the breathing in and breathing

out.

Chemoreceptors that play an important role in reflexive control of respiratory function are not affected by pH, PO2, PCO2, or hydrogen ion concentration.

Chemoreceptors are specialized nerve cells or receptors that detect changes in the chemical composition of the blood. The prefix "chemo-" alludes to the chemical makeup of the blood. The brain receives that data from the chemoreceptors to assist in maintaining the equilibrium of the cardiovascular and respiratory systems.

Chemoreceptors are sensors that monitor changes in CO2, O2, and pH and are categorized as central or peripheral based on anatomical location. The brain's central chemoreceptors, which react to changes in the partial pressure of carbon dioxide in their immediate environment, are different from arterial chemoreceptors, which monitor and respond to changes in the partial pressure of oxygen and carbon dioxide in the arterial circulation.

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The function of a cell is determined by the organelles it has.

In the image, cell A contains several Golgi apparatuses while cell B contains many mitochondria. In other words, cell A is likely to be for storage of proteins while cell B is likely for energy generation.

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Based on the cell organelles present in cells A and B;

A cell organelle is a specialized subunit with a particular function that is typically found within a cell in cell biology.

Cell organelles are usually membrane-bound and found in mainly eukaryotic cells.

Some examples of cell organelles include:

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Answer:

If both parents have the same blood type then their children would also have the same just like if they have the same eye or hair color

Answer:

B or O

Explanation:

Two parents with B blood type can be either B or O blood type. One parent with A and another with B can produce a child with A, B, AB or O blood types. If one parent has A and another has AB, they can either produce a child with A, B or AB blood types.

The Abilities Required For Metastatic Cell Behavior Are Encoded In The Normal Genome. True

The procedure involves complicated interactions between the inherent characteristics of cancer cells and various microenvironments. The result is the growth of a close-by or far-off discontiguous secondary mass. Metastatic cells acquire characteristics in addition to those required for neoplastic transformation in order to successfully spread. Determining the hallmarks of metastasis is extremely difficult due to the heterogeneity of the mechanisms involved, the routes of dissemination, the redundancy of the biochemical pathways that might be used, and the potential to rely on the activity of nearby stromal cells. However, this research finds four distinct characteristics that are necessary: motility and invasion, the capacity to alter the secondary site or local microenvironment, adaptability, and the capacity to colonise secondary tissues. 

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Yes, I believe that every living being possesses inherent value simply due to the fact that it is alive. This belief is rooted in the principle of respect for life and the recognition that every living being has its own unique place and purpose in the web of life.

Firstly, the interconnectedness of all living beings underscores their inherent value. Every organism, from microscopic bacteria to complex organisms like humans, plays a role in maintaining the balance of ecosystems. Each species contributes to the overall functioning and stability of the natural world. Recognizing this interconnectedness implies acknowledging the inherent value of all living beings.

Furthermore, the ability to experience pleasure, pain, and consciousness is another reason to ascribe inherent value to living beings. Sentient creatures, such as humans and many animals, have the capacity to feel emotions, experience joy, suffer, and form social bonds. These experiences give rise to an intrinsic worth that should be respected.

Moreover, ethical considerations guide the belief in inherent value. Many ethical frameworks, such as the principle of non-maleficence and the golden rule, emphasize the importance of treating others with respect and compassion. By recognizing the inherent value of all living beings, we can strive to promote their well-being and avoid causing unnecessary harm.

In conclusion, the belief that every living being possesses inherent value is based on the principles of interconnectedness, the capacity for consciousness, and ethical considerations. By acknowledging and respecting the value of all life, we can work towards a more harmonious and compassionate world.

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Answer:

The muscles cells and their body cell

Answer:

IN THE SAME WAY THE BODY REACTS TO

PAIN . THE BRAIN RECEIVES INFORMATION

IT REACTS IN DIFFERENT WAYS DEPENDING

ON WHICH PART OF THE BODY ......... HOPE

THIS HELPS

Answer:

Bible.

Explanation:

If this person was wise, they would turn to the Bible.

Answer:

Bible

Explanation:

Your faith goes into the bible because faith is about trusting and believing in yourself and believing that you can do whatever you put your mind to such as chasing a dream just like as God has faith in us because he knows that we can do anything we put our mind our faith in mine too

Answer:

He needs to take Carbohydrate load for storage of glycogen in the muscles so that enough reserves will be available when the amount present is used up during the long race.

CHO in controlled amount should be taken. 4g of CHO per body weight. Rice, oatmeal,pancakes,bread with yogurt should be taken.They are very easy to digest.The goal is to load the body with enough CHO to be converted to glycogen the following day.

Explanation:

Answer:

The night before the race, Lionel should eat complex carbohydrates because they are a source of long-lasting energy. This includes foods that contain starch, like cereal, bread, pasta, rice, potatoes, or corn.

Explanation:

It's the sample response

When individuals with certain inherited traits are more likely to survive and reproduce than those with less favorable traits, natural selection occurs.

Natural selection is a fundamental concept in evolutionary biology proposed by Charles Darwin. It is the process by which certain heritable traits become more or less common in a population over successive generations. Natural selection occurs when individuals with advantageous traits have a greater chance of surviving and reproducing, passing on those traits to their offspring.

The key components of natural selection are as follows:

1. Variation: Individuals within a population exhibit variation in their traits. These variations can be due to genetic differences, environmental factors, or a combination of both.

2. Selective Pressure: Environmental factors, such as predation, competition for resources, or changes in habitat, create selective pressures that affect the survival and reproductive success of individuals with different traits.

3. Differential Survival and Reproduction: Individuals with traits that are better suited to their environment have a higher probability of surviving and reproducing. They pass on their advantageous traits to their offspring, increasing the frequency of those traits in subsequent generations.

4. Heritability: The traits that confer a survival or reproductive advantage must have a genetic basis and be heritable, meaning they can be passed from parents to offspring.

Over time, through the accumulation of small changes and the elimination of less favorable traits, natural selection can lead to the adaptation of populations to their specific environments. This process is a driving force behind the diversity and complexity of life on Earth.

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Answer:

Mendel first observed the different patterns of gene segregation for selected traits in garden peas and was able to determine probabilities of recurrence of a trait for subsequent generations and analyses of large families with many affected individuals can be used to determine whether a disease-associated gene is located on an autosome or on a sex chromosome, and whether the related disease phenotype is dominant or recessive.