pls help me ill make u a brainliest if its correct
Sandra measured her heart rate and her breathing rate at rest and again after doing 50 jumping jacks. What is the main reason that both her heart rate and her breathing rate went up with exercise?
Answers
1.They both increased to carry heat away from her working muscles more efficiently.
2.They both sped up to supply her working muscles with enough oxygen to remain in homeostasis.
3.Her muscles were out of shape and required extra blood and oxygen to maintain her jumping pace.
4.Her lungs and heart ran short on oxygen while she was exercising and sped up to maintain homeostasis.
Answers
Related Questions
Which natural hazards are most likely to affect Florida, due to its geography? Check all that apply.
O drought
O undersea earthquakes
O floods
O rip currents
O tropical cyclones
O tsunamis
O wildfires
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Answer:
based off of how florida's weather is, it might droughts tropical cyclones and floods
explain the relationship between energy and econmic development
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Existing rocks are buried and forced toward the mantle, increasing heat and pressure. This is the first step in the formation of metamorphic rocks.
(PLEASE HELPPPP 90 POINTS!!)
Which best describes the next step in the formation of metamorphic rocks?
Buried rocks melt deep within the mantle.
Lava melts underlying rocks, which crystallize into new minerals.
Rocks that were buried are exposed at Earth’s surface, where they are weathered and eroded.
Magma pockets rise, which increases heat, and minerals change due to temperature and pressure.
Answers
The correct answer is B. When buried rocks are forced toward the mantle, they undergo extreme heating and pressure, which can cause them to melt. This molten rock is known as magma, which then crystallizes as new minerals as the magma cools and solidifies. This process is known as metamorphosis and is the second step in the formation of metamorphic rocks.
Buried rocks melt deep within the mantle.
What does the octet rule state?
Answers
Answer:
The octet rule is a chemical rule of thumb that reflects the observation that main group elements tend to bond in such a way that each atom has eight electrons in its valence shell, giving it the same electronic configuration as a noble gas.
Explanation:
Answer:
The octet rule states that atoms tend to form compounds in ways that give them eight valence electrons and thus the electron configuration of a noble gas.
Explanation:
How are the alleles for sex-linked traits inherited
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Why are tides on Earth higher than normal during spring tides?
-The Moon cancels out the gravitational pull of the Sun on Earth.
-The Sun comes closer to Earth and increases its pull.
-The Moon comes closer to Earth and increases its pull.
-The Sun combines its gravitational force with that of the Moon on Earth.
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This is because when the moon is a full moon, the solar or sun is, and has an attractive effect to the lunar or moon
The science club at Tracy's school is researching how temperature affects fish reproduction. They conducted a study to find out if raising the water temperature would decrease the number of bass eggs that hatched.
They gathered bass eggs from a local lake. Half of the aquariums were kept at room temerpature, and the other half were placed in a sunny window.
What is the independent (test) variable from this experiment?
The size of the lake.
The number of bass eggs that hatch.
The temperature of the water.
The number of aquariums.
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Answer:
The temperature of the water.
Explanation:
The independent variable is the thing you are changing in order to observe an outcome. The dependent variable is the outcome (the number of bass eggs that hatch).
50 POINTS!
Energy is transferred into the ecosystem when
1.when bacteria absorbs nitrogen from other organisms
2. dead organisms decay and form organic matter
3. rodent prey on invertebrates
4.plants grow from the soil
Answers
Answer:
2
Explanation:
Energy is transferred between organisms in food webs from producers to consumers.
The energy is used by organisms to carry out complex tasks. The vast majority of energy that exists in food webs originates from the sun and is converted (transformed) into chemical energy by the process of photosynthesis in plants.
Answer: between organisms in food webs from producers to consumers.
Explanation:
Answer quick please
Which of the following statements is false?
The number of letters representing each gene will be the same amount for each gene.
The order and number of bases forms a code.
The code is used by the cell to determine which proteins need to be created.
The proteins that the body makes help determine a person’s traits.
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Answer:
Option D is false beacuse protein doesnot determine persons trait
Need Help Will Give Brainliest
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3 systems that work to fight against disease are, organs, tissues, and cells.
2 organs that are used to protect against desease are the mucous membranes, and the lungs.
1 way the body naturally work to protect the body is its skin that helps against pathogens
hope this helps :)What is the name given to the theory that explains how a substrate fits the active site of an enzyme?
Answers
HELP PLEASEEEEE !!
1. What are the products of the chemical reaction of cellular respiration?
2. How does energy transform in the process of cellular respiration?
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Answer: number 1 is oxygen and glucose into water and carbon dioxide. Water and carbon dioxide
number 2 is Through the process of cellular respiration, the energy in food is converted into energy that can be used by the body's cells. During cellular respiration, glucose and oxygen are converted into carbon dioxide and water, and the energy is transferred to ATP
Explanation:
. . . . 20ptsandbrainly . . . .
During training for a marathon, your body is experiencing strenuous exercise. You are sweating. Which receptors send information to the brain to stabilize body temperature?
Answers
Answer:
Thermoreceptors.
Explanation:
Thermoreceptors are specialized cells that detect changes in temperature. When the body temperature rises, thermoreceptors send signals to the brain to initiate sweating, which cools the body down.
Answer:
Thermoreceptors are specialized nerve cells that are able to detect differences in temperature. Temperature is a relative measure of heat present in the environment. Thermoreceptors are able to detect heat and cold and are found throughout the skin in order to allow sensory reception throughout the body.
Explanation:
Based on these images, what can you say about the tentacles of an octopus and the limbs of a lizard?
Answers
Answer: 4
Explanation:
the diagram shows the life cycle of a fern. what does stage 4 show?
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Answer:
I believe the answer is D.
Explanation:
Olivia learns that all living things, including human beings, need to have a high level of fitness to evolve and adapt. There are two main differences between an organism with low fitness and one with high fitness. The first is the ability to survive. What is the second ability?
A. mutation
B. reproduction
C. coevolution
D. gene transfer
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B. reproduction
one product was O2 (oxygen gas). What was the evidence of this gas?
Answers
How are species impacted when humans destroy their habitat? Give at least one example of a species that is being affected by humans
Answers
Answer: Polar Bears
Explanation: Global warming is making the earth warmer and humans are behind it. People drive cars which releases C02 into the air. This makes the earth warmer. Polar Bears are affected by it because their habitat is melting away.
Answer:
There are many species on earth but they go extinct quick due to people destroying their habitats. Animals like squirrels, birds, rodents, and other forest dwelling creatures are being affected through clearing of land for agriculture. Forests are ripped apart and removed so people can build homes and city’s all over the world.
State the functions of the skeletal system, including the number and the major bones in the human skeleton.
Answers
The skeletal system serves several important functions in the human body. These functions include:
1. Support: The skeleton provides the structural framework for the body, giving support and shape to the organism.
2. Protection: The skeletal system protects vital organs such as the brain, spinal cord, heart, and lungs. For example, the skull protects the brain, the ribcage protects the heart and lungs, and the vertebrae protect the spinal cord.
3. Movement: Bones act as levers for muscles, enabling body movement. The skeletal system works in conjunction with the muscular system to facilitate motion.
4. Mineral storage: Bones store essential minerals, such as calcium and phosphorus, which are necessary for various body functions.
5. Blood cell production: Red and white blood cells, as well as platelets, are produced in the bone marrow, which is found in some bones.
6. Energy storage: Yellow bone marrow, found in the medullary cavity of long bones, stores energy in the form of fat.
The human skeleton consists of 206 bones in adults. Some of the major bones include:
1. Skull: Comprised of the cranium and facial bones, it protects the brain and supports the structures of the head.
2. Spine (vertebral column): Consists of 33 vertebrae, which protect the spinal cord and support the upper body.
3. Ribcage: Includes 12 pairs of ribs, the sternum, and the thoracic vertebrae, which protect the heart and lungs.
4. Humerus: The long bone in the upper arm, connecting the shoulder to the elbow.
5. Radius and Ulna: The two bones in the forearm, connecting the elbow to the wrist.
6. Femur: The long bone in the thigh, connecting the hip to the knee, and is the longest bone in the body.
7. Tibia and Fibula: The two bones in the lower leg, connecting the knee to the ankle.
8. Pelvis: A basin-shaped structure that supports the spine and organs of the lower abdomen, and connects the spine to the lower limbs.
These are just a few examples of the major bones in the human skeleton.
Answer:
Explanation:skeletal system functions are diffrent of types . In addition to defining our shape and traits as humans, it:
enables movement: Your skeleton helps you stand and move by supporting your weight. Your bodily components are movable thanks to the cooperation of joints, connective tissue, and muscles.
Bone marrow, which makes blood cells, is found in bones. The bone marrow makes RBC AND WBC
supports and shields organs: Your ribs shield your heart and lungs, your backbone shields your spine, and your skull shields your brain.
Mineral storage: Your bones are where your body stores minerals like calcium and vitamin D.
Which condition is usually associated with low air pressure systems?
A.cloudy, wet weather
B.cold, dry weather
C.clear, dry weather
D.hot, dry weather
Please Answer Now! (✿◡‿◡)
Answers
Answer:
B is the answer :)
Explanation:
Why do you think the Arecibo message and the beacon in the Galaxy were broadcast in binary code?
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Answer:
Hi!
The Arecibo message and the beacon in the galaxy were broadcast in binary code because binary is a universal language that can be easily understood by any intelligent beings, regardless of their language or culture. Binary code consists of only two symbols, 0 and 1, which can be used to represent any information, including letters, numbers, and instructions. This makes binary an ideal choice for transmitting messages over vast distances, as it is less prone to errors and can be decoded with a high degree of accuracy.
Select your answer from the choices below, then write them on its appropriate column.
Answers
Answer: The duties that the students and community members have to be done to save our environment and resources
Explanation: My part as a students
1. Switch off classroom lights and fans when not in use.
2. Plant a tree (in vacant lot / backyard).
3. Join environment friendly groups.
4. Switch to non- plastic water bottles.
5. Switch off faucets in the school or park when not in use.
My initiative as a Community Member
1. Conserve water.
2. Throw garbages in the trash can.
3. Decrease the amount of paper you print.
4. Minimize the use of plastic when buying good
5. Volunteer for clean-up drives.
The correct options that have to be filled in its appropriate column are:
The part as a Student in conserving the environment.
Decrease the amount of paper you print.Switch off classroom lights and fans when not in use.Conserve water.Switch to non-plastic water bottles.Minimize the use of plastic when buying goods.My Initiative as a Community MemberVolunteer for clean-up drives.
Join environment-friendly groups.Plant a tree (in a vacant lot/backyard).Throw garbage in the trash can.Switch off faucets in the school or park when not in use.Thus, these are the correct options for the given columns.
Learn more about conserving the environment, here:
https://brainly.com/question/29788557
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A class is learning about the evaporation step in the water cycle using a simple model. The model consists of a 1-L container of water. When the container is open, and it receives sunlight, the water can freely evaporate from the container. The students design an experiment using the model. In the experiment, the container will be filled and left open outside from dawn until dusk at different times of the year. The students will run the experiment only on days with clear weather. As a basis of their experiment, the students make an assumption that more water will evaporate from their model when more solar energy is present. Which of the following is a result that the students could predict in order to test their assumption?
A.
Equal amounts of the water will evaporate on summer days and winter days.
B.
Less of the water will remain in the container after one day in summer than after one day in winter.
C.
Less of the water will remain in the container after one day in winter than after one day in summer.
D.
Some of the water will evaporate on winter days but not on summer days.
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What is Potential energy?
I’m here trying to figure it out but I can’t remember. Help? ;-;
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Which best describes why it is important for a scientist to use the metric system when recording data?
so the data can be proven in the scientist’s next experiment
so the data can be shared and understood around the world
so the data can be used in mathematical formulas and models
so the data can be accurate and precise in each experiment
Answers
i dont understand you're Q. please explain and ill commet your answer down below. and ill explain you're Q. thank you
Plz help i will report if it is wrong
A population of bacteria is treated with an antibiotic. Because of variation in the population of bacteria, what is a possible outcome of the treatment?
A) The population will increase rapidly.
B) All of the bacteria will be resistant to the antibiotic.
C) The population will be better able to obtain a food source.
D) Some of the bacteria may be resistant to the antibiotic and survive.
Answers
Answer:
Your answer for this is D
Answer: A: The population will increase rapidly.
Explanation: Only an antibiotic can cure for bacteria. Key words: antiBIOTIC.
Question: How do different variations lead to evolution of species?
We have learned that mutations and sexual reproduction can lead to variations. Variations that allow an organism to survive in its environment are considered adaptations. The variation with the best adaptation for the environment will survive and reproduce while the others will eventually die off. If the environment changes, a different variation may survive instead. For your final project you will model this in a lab assignment.
Background Information:
Pretend there is an organism on earth called a weezy. There are three variations of weezys: ones with two arms and hands with five fingers (weezy A), ones with one arm and hand with five fingers (weezy B), and ones with one arm and hand with three fingers (weezy C).
Weezys are eaten by smurfs. To protect themselves from smurfs, weezy's build towers out of rocks and climb up to the top of them. Because smurfs can’t climb, the weezys are safe if they manage to get to the top. However, weezys must build their towers quickly because smurfs are extremely fast. The ones who build their towers quickly enough survive, but the ones that are too slow usually get killed by smurfs.
In this activity, you will simulate the three variations of weezys in a population. You will measure how long it takes you to build the tower while pretending to be each type of weezy. You will do three trials for each weezy. As you are doing the activity, complete the data table below. When you are finished, answer the questions that follow.
Model:
Identify what you will use to represent the rocks for your tower. (You need 10)
Write your material here:
Describe how you will model weezy C.
I will____________________________to model weezy C.
Tower Building Time
Trial 1 time (seconds)
Trial 2 time (seconds)
Trial 3 time (seconds)
Average (seconds)
Weezy A
9.7
9.7
8.1
9.2
Weezy B
10.9
9.5
12
Weezy C
13.6
13.5
12.7
For extra credit, create and insert a graph of your data.
Analysis Questions
Directions: Use your data to answer the following questions.
Identify the weezy that built the tower the fastest. Explain why this weezy was able to build this tower the fastest.
The weezy that built the tower the fastest was Weezy__________.
This weezy built the tower the fastest because
Identify the weezy that was the slowest at building the tower. Explain why this weezy built so slowly.
The weezy that built the tower the slowest was Weezy__________.
This weezy built the tower the slowest because
3. Which of the following graphs shows how the Weezy population would change over time based on the current variations and environment?
Letter:
4. Right now you have Weezy A, B and C variations. Describe how a new “Weezy D” variation might enter the population in generations to come.
Weezy D may enter the population if there is a(n)______________________________________. This means
5. If Weezy D did enter the population, explain what would need to happen for it to continue to be part of the population. (Be sure to use the words harmful, neutral and/or beneficial).
If Weezy D entered the population ____________________________would need to be _______________________. This would mean that Weezy D could
6. Explain how the population and variations of Weezys will change after years and years of being hunted by smurfs. Be sure to include evidence from your data and the background information to support your answer.
Over many years of being hunted by smurfs the variations of Weezys would be _______________.
Weezy A would…
Weezy B would…
Weezy C would…
My evidence from the data is…
My evidence from the background information is…
This means that…
Grading Scale:
Standards
1
Not Meeting Expectations
(49%)
2
Partially Meeting Expectations
(69%)
3
Meeting Expectations
(84%)
4
Exceeding Expectations
(100%)
8.MS.LS3-1
Answered questions 4 and 5 but received little to no credit.
Half credit for questions 4 and 5.
Or
Full Credit for question 4 and no credit for 5
Or
Full Credit for question 5 and no credit for 4
Full Credit for Question 4 and missing part of explanation for question 5.
Full Credit for Questions 4 and 5.
8.MS.LS4-4
Answered questions 1,2,3 and 6 but received little to no credit.
Partial credit for questions 1,2,3, and 6
Or
Partial Credit for 3 out of 4 questions and full credit for the other.
Or
Full credit for 2 out of 4 questions and little to no credit for the others.
Full credit for 2 out 4 of the questions (1,2,3,6) and partial credit for others.
Full Credit for Questions 1,2,3 and 6
Answers
Answer:
Evolution is the process by which populations of organisms change over generations. Genetic variations underlie these changes.
carabuttram23 What planet is closest to the sun, what planet is least closest, which planet has rings (name any) in our solar system?
Answers
Answer: Mercury
Explanation:Mercury—the smallest planet in our solar system and closest to the Sun—is only slightly larger than Earth's Moon.
Bob studies for a test and Jackie does not study. After the test, they compare their scores.
B : Independent Variable:
A : Dependent Variable:
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Answer:
I: studying for a test
D: the score on the test
Explanation:
The independent variable would be studying for the test because it could change/it is controlled. The score on the test depends on how much they studying (i.e. dependent variable depends on the independent variable.)
What’s required for transpiration to happen? please hurry...
Answers
Answer:
What is required for transportation is that one need a vehicle transportation 2. Oh in that vehicle to travel. and three must have a driver license to drive that vehicle.
Explanation: