Answer:
Answer: The respiratory system moves air in and out of the body. When you breath in oxygen this creates oxygenated blood. The blood moves through the aorta which then distributes the oxygenated blood to rest of the body. The co2 then leaves the lungs when you exhale. Hope this helped. :)
Explanation:
Answer: [SAMPLE RESPONSE] The two systems work together in several ways. First, the respiratory system brings oxygen in the air to the alveoli in the lungs. The circulatory system then delivers the oxygen to the cells. Second, the circulatory system picks up carbon dioxide from the cells and carries it to the lungs, where it is released when we exhale.
Which sex cell is produced in males?
Answer:
Sperm
Explanation:
Answer:
Sperm
Explanation:
Help with this, don't even DARE waste my time just to get the points. (sry im upset bc someone just did that)
Your choices should be of relative importance during the time, and not in the long term. Remember, if you help people long term, and the short term dies, then most likely the long term people will die as well.
In the excerpt, it shows that there is enough drugs for 5 groups of people. It is also stated that 15% of the population will die. Note that "will" means necessary, which means they cannot be healed at any point of time.
Young children between birth and 5 years: Those who were borned during sometimes have a better immune system against the disease (as seen in many past instances), as their body has grown accustom to it. However, they are also the group with the highest risk. Their autoimmune system has not developed fully to be able to fight off the disease if it really takes into effect. As the ones that will be part of the next generation, they should receive the dose.
Public Servants like the Police and Fire Department: These are the ones who will have the most human interaction, especially during a high infection state (in which people will be quarantined like we are). Because of this, they should also receive their dose, as their human interaction per day-to-day basis is higher than most of us.
All Adults between 20 and 40, determined to be the highest risk for severe symptoms: Adults who are between 20 - 40 are at the prime of their age, and generally would have the strongest immune system. However, note that these people are located in the highest risk of symptoms. Remember, viruses can evolve, and so if those who are at their peak immune system and are those who most likely would travel around (and most likely not follow government orders of isolation) would have not only the highest chances of infection, but also the highest chances to spread the infection.
Utility industry employees: Utilities such as water, electricity, as well as plumbing, etc. are essential in being kept in order for people to continue to stay at home. This also means that there must be people to keep it in order and running. These people are essential in continuing the way of life for the people.
Food Industry employees: Everybody needs to eat (as well as drink), and there must be a dedicated source for such. This means while they may be able to set up a way to help isolate the people to safer distances, they should not close down. Remember, food, utility, and water make up the foundation of what is important for a human.
As for what the other groups would have to do to prevent the disease, they should stay isolated as much as they can, and to wear disposable gloves and masks when they go outside. They should also wash their hands as much as they can, and avoid to touch their mouth & face with their hands when possible. Avoid contact with others when possible. Work that can be done at home should be moved to home/online.
Possible death of the 5%:
Infants: While they may develop immunity in the beginning stages, they are also the ones that will not have developed immune system. This puts them in a hazardous yet safe place, which is why they get the cure.
Healthcare workers: Healthcare workers will be knowingly exposed to the disease. However, as they know they have a high chance of being exposed to it, they can take the necessary precautions to avoid coming in contact with it, something other groups cannot. However, I feel like the Healthcare workers should have fallen under the umbrella of Public Servants, but since it does not, I will include it here.
Any of the Employees: Employees are employees as they need the steady income from somewhere. As many may be living pay check to pay check, they may feel the pressure build up when they do not work, and may force themselves to disobey government orders and go work. They will have a higher chance to be exposed to the disease, and therefore, in turn, have a low-medium to high chance of being exposed and die of the disease.
High risk areas: They are high-risk for a reason, and so they will have a higher chance of not only contracting, but with failure of noticing the symptoms, to die of it as well.
As for the other groups, I do not have the room to give out exactly why they should stay at home. However, for your job, you can essentially write that their jobs are not essential in keeping humanity alive. Those who can will continue to work through home and the internet or other means, while the others will risk too much just to work. Those jobs that are not essential to meeting human needs or essential in finding the cure for the disease should stop at once.
which two technologies use reflected sound waves
Answer:
one of them is SONAR
Explanation:
Other one is megaphone
Answer: There are 3 of them that are: radar, sonar and lidar.
Explanation: I used google to answer this
What is the role of DNA in an organism ? how is dna related to reproduction
Answer:
DNA plays a role in the growth and reproduction of organisms.The function of DNA is to store all of the genetic information that an organism needs to develop, function, and reproduce.DNA contains the instructions needed for an organism to develop, survive and reproduce.
What would happen if the distance of a planet from the Sun was doubled?
Answer:
Hey! Here are your answers!
1) The Earth would make a double orbit * in terms of time duration of 365.25 days * meaning there'd be about 730.5 days in a year ( a leap year therefore would be every 2 YEARS )
2) Because SOLAR RADIATION (light and heat) takes about 8 mins to reach Earth, this would be double to 16 mins
3) The planet as a whole would cool down significantly to the extent that life cannot exist!
Explanation:
HOPE THIS HELPS!!
According to Kepler's third law, T2 R3, the cube of the mean distance between the planet and the Sun (R) and the square of the time period (T) are exactly related. As a result, the planet's orbital period lengthens by a factor of two.
How does the distance of a planet from the Sun affect it?The orbital period increases and the gravitational pull decreases with a doubled distance from the sun. Depending on how far away from the Sun a planet is, it will have a different orbital speed.
A planet moves more quickly and experiences a stronger gravitational attraction as it gets nearer to the Sun.
It moves in its orbit more slowly the further it is from the Sun because of the Sun's weaker gravitational attraction.
Therefore, the planet's orbital period lengthens by a factor of two.
Learn more about the Sun, here;
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burning fossil fuels, it makes the Earth colder.
What percent of the atmosphere is carbon dioxide?
A.4%
B.0.4%
C.40%
D.0.04%
Answer:
B i took the test
Explanation:
Answer: D
Explanation: Only 0.04% of the atmosphere is carbon dioxide.
Food contains a sugar called , which is broken down in a process called cellular . This process uses to break down food molecules and provide energy for cells.
Answer:
I think it is glucose.i hope this helps!
Explanation:
Answer:
the correct answers are glocose, respiration, and oxygen
Explanation:
i got it right
What are the differences between parents and offsprings ?
Answer:
Offspring is a person's daughter(s) and or son(s); a person's child. While a parent is one of two persons from whom one is immediately biologically descended; a mother or a father.
Answer:
Parents have offspring
Explanation:
Offspring is the result of sexual or asexual reproduction by parents.
In guinea pigs, the allele for black fur(B) is dominant over the allele for
brown fur(b), and the allele for short fur (F) is dominant over the allele
for long fur(1). What percent of the offspring of a BbFf x bbff cross will
be heterozygous for both traits?
Select one:
100%
25%
0%
50%
Answer: 50%
Explanation:
WILL GIVE BRANLIEST!!!! 20 POINTS!!!! BLESS YOUR GRADES!!
3. Which two substances move through an ecosystem in sedimentary cycles?
A) phosphorous and oxygen
B) phosphorous and sulfur
C) sulfur and carbon
in 1696, apollo 11 landed on the moon. it took four days for the spacecraft to travel from earth to the moon. in 2006, new horizons left earth and reached pluto in 2015. Based on this information, what is the most reasonable estimate for a space craft to travel from Earth to Mars.
a. six hours
b. six days
c. six months
d. six years
Answer:
c
Explanation:
Please help! What can be concluded from this graph?
Answer:
i believe the answer is C
Explanation:
The conclusion from this graph is the enzymes lowers the energy of activation for this reaction. Therefore, option (C) is correct.
What do you mean by activation energy?Something that reduces the activation energy is called a catalyst. An enzyme is its biological name. Without being consumed, the catalyst speeds up the rate of the reaction.
By reducing the amount of energy required for reactants to combine and react, enzymes typically reduce activation energy. For instance: Reactants are brought together by enzymes so that they do not have to move around until they randomly collide.
Removal of reactants from the solution state, also known as desolvation. weakening the bonds between the enzyme and the reactants.
Learn more about activation energy:
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Whales have the vestiges of a pelvis (TRUE OR FALSE)?
Answer:
True. Vestiges are simply structures that don't really serve a purpose but are leftovers from ancestors.
The entire earth is actually a global ecosystem.
True
False
Answer:
true
Explanation:
Answer:
it is true the entire earth is a global system
Which is the result of an object's motion?
Answer:
second law
Explanation:
becuz it states that force os directly proportional to the product of acceleration and mass
f=mxa
1. What is a pathogen?
When the motion energy of an object changes, there is inevitably some other change in energy at the same time. If
an object is slowing down, where is the energy going? (Check all that apply)
The potential energy could be increasing, like a ball thrown into the air.
The kinetic energy could be lost to friction or airfmsistance.
The ball could be returning to its natural resting state.
Due to the conservation of energy, the kinetic energy must stay the same.
Please help
When the motion energy of an object changes, there is inevitably some other change in energy at the same time. If the object is slowing down, where is the energy going?
1. The potential would increase since when the ball is slowing down, its kinetic energy is being transformed into potential energy and when the ball gets hit or kicked again, it releases the potential energy and it transforms into kinetic energy.
2. The kinetic energy wouldn't exactly be lost to friction or air resistance, it's merely being converted into potential energy when the ball is slowing down due to those factors.
3. The ball returning to its natural resting state is correct since according to Newton's 1st Law in which an object that is at rest or is moving will not change unless there is another force acting upon it. in this case, the ball was kicked and there are other forces acting upon it like friction and air resistance, those factors cause the ball to slow down. Eventually the ball will stop and return to its original resting state.
4. This one is incorrect since kinetic energy is not staying the same as the person or any other force that is exerted on it be increased therefore increasing the kinetic energy.
The pattern of natural selection where BOTH of the extreme versions of a trait are more advantageous than the average, so a population evolves in both directions away from the average.
Answer:
Stabilizing Variation.
Explanation:
This is the type of variation that occurs when genetic diversity decreases as the population of organism in a particular population based on a specific trait.
Organisms with varied or specific traits within the population are selected against by the selection pressure, with little chances of reproduction, while organisms in between, ( with least variation of this particular traits) which are within the narrow range, survive to reproduce.Thus, this gives rise to narrow population of these particular organisms,(stabilizing variation) which are therefore naturally selected.
Therefore, the variation of the organisms in this population is kept close to the centre of the same mean value.
Which best describes an adaptation that could be found in a fish that lives in a slow-flowing stream?
the ability to attract prey by glowing
extra gills, for oxygen extraction
O the ability to grow larger
extra fat, for warmth
Answer:
My best guess is B!!! Sorry if im wrong!!!
Explanation:
Hope this help!! <3
Select the correct answer. PLZ HELP 11+points
Where do humans fit in the food web?
A)carnivores
B)decomposers
C)omnivores
D)producers
Answer:
C - Omnivores
Explanation:
Answer:
C. Omnivores
Explanation:
Humans consume both plants and animals, so they’re omnivores. Producers make their food in the presence of sunlight. Carnivores eat other consumers. Decomposers consume dead plants and animals.
explain how gas is compressed into liquid in a gas barrel
Explanation:
A gas can be converted into a liquid by increasing the pressure & decreasing temperature. So that the condensation occurs. You must also make the molecules closer so that it is a phase change from a gas to liquid. In liquids, the molecules are very near than that of gases.
1. Why is the bird on the right more likely to pass on its genes than the bird on the left?
2. Why would some variations/traits be passed on to the next generation and some seem to disappear over time?
3. What type of adaptation/traits do you think would be good to pass on to your children?
Answer:
1because it has a bigger and larger beak
2because of the development of the technology, genes change overtime and more now because of the global warming
3somewhere natural,traits:values,justice,self defense,to take care of the environment, etc
I need to list the order of traits from sponges to mammals in which they appear from an evolutionary standpoint. I don't know how to find the correct order
Answer:
please put a picture of the work you have to do so i can help you
Explanation:
Germination will not happen unless a seed
A. is dispersed far from the plant that produced it.
B. absorbs water.
C. uses its stored food.
D. grows stamens and a pistil.
Bill Nye Evolution Video Questions
1. _______________________ has been going on for billions of years.
2. Genes are made up of_______________________.
3. The chemistry of all living things is the same / different .
4. DNA is considered to be the building blocks of __________________________.
5. A human has 46 ______________________ .
6. Giraffes have long necks so that they can _________________ the leaves that others animals can’t.
7. Evolution by selection is a change that occurs over generations / overnight.
8. A paleontologist is a scientist that studies ___________________________.
9. The study of life through time is called __________________________.
10.Humans have changed the ________________________ faster than most living things can keep up.
11.A fossil can show how life has ______________________ on Earth.
12.Bird feathers and _______________________ scales are made of the same things.
13.A ground sloth lived 12,000 years ago during the __________________________ age.
14.Natural selection is the changes of size and shape of living things in ________________________.
15.Charles ____________________ was the scientist that developed the Theory of Evolution.
Answer:
1.evolution
2.DNA
3.the same
4.life
5.chromosomes
6.eat
7.generations
8.life through fossils
9.paleotology
10.enviroment
11.changed
12.reptile
13.ice age
14.nature
15.Darwin
The answers are
1. evolution, 2.DNA, 3. Same, 4.life, 5.chromosomes, 6.eat, 7.generations, 8.life through fossils, 9.paleotology, 10.enviroment, 11.changed, 12.reptile, 13.ice age, 14.nature 15.Darwin.
What does the video on evolution suggest ?The process of evolution has been for going on for millions of years. the DNA is a genetic code. The chemistry of the living things is the same. The DNA s considered are building block of life. Humans have 46 chromosomes. A giraffe eats through the long neck. The evolution can lead to the generation of life. The life through the fossils is studied by the paleontologist.
Find out more information about the evolution.
brainly.com/question/390030.
An oak tree can be a home for animals like squirrels, birds, etc. as well as provide oxygen for the environment. This is an example of a _____________: the role an organism plays in the environment.
Answer:
Commensalism
Explanation:
Commensalism is the condition in which one organism is harmed and the other is neither harmed nor benefited. The animals are being benefited but the tree is neither benefited nor harmed.
The Environmental Policy Act of 1969 was instituted as a follow up regulation to major environmental issues that occurred in
the 1960's.
Please select the best answer from the choices provided
T f
Answer:
The given statement is true.
Explanation:
The enactment of the Environmental Policy Act or the EPA in 1969 was done to monitor the issues of the environment that took place in the 1960s. It was the major and the primary law, which was postulated at that time to solve environmental issues in the United States. The enactment of the EPA law was done for various reasons, some of which are as follows:
1. To better the health of human beings.
2. To generate harmony between nature and humans.
3. To encourage efforts to reduce destruction to the environment.
Answer:
true ).
Explanation: answer on edge
_adds genetic variation,which is essential for evolution
Answer:
mutation
Explanation:
Which statement describes the blood type of a person with the alleles IAi? It is type AB because I and i are codominant. It is type AB because A and i are codominant. It is type A because i is dominant and A is recessive. It is type A because A is dominant and i is recessive. Which describes the letter that belongs where the question mark is? T because there are offspring that are heterozygous T because there are offspring that are homozygous t because there are offspring that are homozygous. t because there are offspring that are heterozygous
Answer: The statement that describes the blood type of a person with the alleles IAi is:
It is type A because A is dominant and i is recessive.
Explanation:
Answer: For edgenuit, it's the 4th option that says "It is type A because A is dominant and i is recessive."
Which protecas the DNA of a virus?
Answer:
capsid.
Explanation:
The protein layer that protects the nucleic acids is called the capsid.
