The heart is an example of which level of organization within an organism? cell organ tissue organ system

Answers

Answer 1
Organ

The heart is a muscular organ that is part of the circulatory system.
Answer 2

Answer:

organ!

Explanation:


Related Questions

How is the growth of land plants proof that there is carbon in the atmosphere? How does carbon exist in the atmosphere, biosphere, and geosphere all at the same time? (Site 1 )

Answers

Plants take the CO2 from the atmosphere which is used in Calvin's cycle to synthesize organic compounds that end up building the plant. This fact can be proved by marking the atmospheric CO2 with radioactive isotopes of carbon, afterwards using a Geiger counter the plant will present radioactivity.

The carbon in the atmosphere is most commonly found in the form of CO2

it has a concentration of 0.04%.CO2 is a byproduct of aerobic respiration

or combustion, for example, C6H12O6+6O2-->6CO2+6H2O. The CO2 is then used by plants in photosynthesis as mentioned earlier.

Carbon is present in the biosphere because all life is made of carbon.

Carbon is present in the geosphere most commonly under the form of hydrocarbons like methane(CH4). The carbon present in geosphere is a result of organisms decay and metabolic byproducts. For example, methanogen bacteria synthesize methane in anaerobic conditions reducing hydrogen in the presence of CO2(CO2+4H2⇒CH4+2H2O). Carbon in the geosphere can also be found in coal that becomes diamond under extreme pressure and temperature.

Carbon element exists in various parts of the atmosphere in the form of gases such as carbon dioxide. The growth of land plants proof that there is carbon in the atmosphere as they perform photosynthesis.

What is Atmospheric carbon?

The atmospheric carbon refers to the carbon dioxide which is present in the atmosphere. The main source of this carbon dioxide is respiration in animals.

There is an exchange of carbon from the atmosphere, vegetation, soils and the organic matter of the atmosphere, ocean and fossil fuels all of these are continually changing. The carbon cycle is the cycle through which carbon is exchanged among the various parts of the globe that is the biosphere, geosphere, and atmosphere of the Earth.

The growth of land plants is a proof that there is carbon present in the atmosphere because the land plants use carbon dioxide and water to grow. Carbon dioxide and water are both the gases and important part of the atmosphere, so when they are combined they usually form a liquid. This liquid is then absorbed by the plants and they use it to make their own food through photosynthesis.

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Which equation has water as a product in the chemical reaction?

Answers

Answer:

What are the options? If I had to guess NaOH+H2 Na+H2O

Explanation:

Answer:

B. NaOH + -> Na + H2O

Explanation:

Type several paragraphs describing the full carbon cycle in detail. i. Discuss all components of your poster, as outlined in step 3. ii. Describe the exchange of carbon through carbon-containing compounds between an organism and the environment. iii. Describe the contributions of photosynthesis and cellular respiration within and among the four spheres. Discuss how carbon enters and leaves each of the four spheres and in what forms. iv. Discuss the role of carbon storage in organisms. b) Click “Enter” on your keyboard a few times to leave enough space to answer the following question. i. How is a model of the carbon cycle different from the actual cycling of carbon in an ecosystem? c) Make sure your paragraphs include correct sentence structure, punctuation, grammar, and spelling. d) Ask your teacher where you should save your work. Your teacher may also have specific guidelines about the file name you should use.

Answers

Answer:

The carbon cycle is nature's way of reusing carbon atoms, which travel from the atmosphere into organisms in the Earth and then back into the atmosphere over and over again. Most carbon is stored in rocks and sediments, while the rest is stored in the ocean, atmosphere, and living organisms

Explanation:

I need help pls...
If a man has red-green color blindness, a sex-linked dominant trait, what is a possible genotype of his father? I. XR Y II. Xr Y III. XR XR IV XR Xr A. Only III B. I and III C. I and II D. I, III, and IV

Answers

Answer:

C

Explanation:

The possible genotype of his father is [tex]X^RY[/tex] and [tex]X^rY[/tex].

For sex-linked traits, an affected man always inherit the affected allele from the mother. The other chromosome, which is the Y chromosome is always from the father and this confers maleness on individuals.

The father of a man affected for a sex-linked trait can be affected for the same trait or otherwise. It does not have any bearing on the male child since the father only donates the Y chromosome to the male child.

Hence, in this case, the father can either be affected for the same trait ([tex]X^RY[/tex]) or be free from it ([tex]X^rY[/tex]).

The correct option is C.

The nurse is observing a set of new parents to ensure that they are bonding with their newborn. What displayed behavior would indicate that the parents bonding is maladaptive?

Answers

Answer:

Neglecting the child

Explanation:

Maldatives behaviors are the behaviors that do not facilitate the parent-infant bonding, meaning that they are those behaviors that are hindering the process. And the best way of removing that is to encourage the behaviors that counter them.

The process of pointing out the responsiveness of the infant is a positive strategy for facilitating parent-infant attachment. Telling the mother that she must pay attention to her infant may be perceived as derogatory and is not

appropriate. Educating the mother in infant care is important; however, pointing out the responsiveness

of her baby is a better tool for facilitating mother-infant attachment. .

Which statement describes gravity?
There is no defined unit of measurement for gravity.
O Gravity is the force that pulls objects toward Earth's center.
Objects that have a small mass will have no gravitational pull.
Gravitational pull between two objects decreases as the mass of one increases.​

Answers

Answer:

Gravity is the force that pulls objects toward the Earths centre

Explanation:

Answer:

O gravity is  the force that pulls  object  towards  Earths centre.

Explanation:

How are Dobzhansky and Mayr's ideas about the origin of species similar to Darwin’s?

Answers

Answer:

evolution of new species is linked to environmental changes

Explanation:

might help

What must happen before mistosis can being?

Answers

Answer:

The S phase of a cell cycle occurs during interphase, before mitosis or meiosis, and is responsible for the synthesis or replication of DNA. In this way, the genetic material of a cell is doubled before it enters mitosis or meiosis, allowing there to be enough DNA to be split into daughter cells

Answer:

The S phase of a cell cycle occurs during interphase, before mitosis or meiosis, and is responsible for the synthesis or replication of DNA. In this way, the genetic material of a cell is doubled before it enters mitosis or meiosis, allowing there to be enough DNA to be split into daughter cells.

what happens if stomach is removed

Answers

Answer: you die

Explanation:

Answer:

What happens after your stomach is removed?After surgery, the way you eat and digest food will change, and it’s important that you carefully follow your doctor’s recommendations for eating to ensure your body is absorbing much-needed nutrients.

“It is important to try to consume as many calories as possible to minimize rapid weight loss in the first few months following surgery, and to take in nutrients that the body needs to aid in the healing process,” said Jeffrey M. Farma, MD, FACS, a surgical oncologist at Fox Chase Cancer Center.

“Eventually the desire to eat and enjoy food will return,” he said.

Eating after your gastrectomyWithout your stomach, you aren’t able to handle regular portions of food and may not even feel hungry. Even if you are not hungry, it is important to remember that nutrition is a vital part of your health.

You will need to eat smaller amounts of food more often – six to eight small meals a day. Your doctor or nutritionist may also recommend that you stay upright for some time after eating. Your health care team can help you adjust your diet if you are having problems eating.

Some patients may experience a condition called dumping syndrome. When part or all of the stomach is removed, the food that is swallowed quickly passes into the intestine, leading to problems with nausea, diarrhea, sweating and flushing after eating. There are treatments to help with these symptoms.

“Since the stomach is no longer there to do the grinding and breakdown of food, it is important that patients take small bites and thoroughly chew the food,” Farma said.

Maintaining your weight without a stomachConsuming enough calories to return to your favorite activities will happen over time. Nutritious, high calorie, low sugar foods provide the best bang for the bite. Calories are your body’s first priority.

“You will not be able to eat the same quantity of food as you did before your surgery, so it is important to get the calories in smaller amounts of high calorie foods,” Farma suggested.

Dietary guidelinesEat a variety of foods including fruits, vegetables, whole grains, protein-rich foods and dairy, which provide a good balance for every meal.

Try not to go for more than 2 or 3 hours without eating.

Carry healthy snacks so you can take a bite here and there.

Nutrient-dense liquids can provide needed calories and are sometimes easier to consume than solid foods. Consider drinking milk, eggnog or unsweetened juice instead of coffee, tea or water.

While you can’t change the fact that your digestive system is different, you can change your diet and lifestyle to enjoy a full and rewarding life after surgery.

Which best describes the scientific process?
A. A guess about a scientific idea
B. A group of scientists
C. A type of mathematics
D. A way to answer scientific questions
SUBMIT

Answers

Answer: I thinks it’s a.  A guess about a scientific idea

Explanation:

A nonnative species of squirrel is introduced into a forest. Which would most likely prevent this squirrel from becoming an invasive species?

A. There are no natural predators for the squirrel in this ecosystem.

B. The squirrel must compete with stronger organisms for resources.

C. The forest ecosystem has very low biodiversity.

D. The squirrel is able to reproduce quickly in this ecosystem.

Answers

Answer:

B

Explanation:

competing with stronger organisms makes it difficult for the squirrel to be invasive

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If a nonnative species of squirrel is introduced into a forest, one of the things that can prevent it from reaching an invasive status is if the squirrel competes with stronger organisms for resources.

Competition is one of the factors that limit the growth of organisms' populations.

All other factors being equal, a combination of some of the following will make the squirrel attain an invasive status:

The absence of natural predators means that the squirrel's population is not threatened in any way.Low biodiversity in the forest ecosystem means that the squirrel will experience very little to no competition for resourcesReproducing quickly in the ecosystem means that the population will boom in no time.

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c. After about half an hour, what
change, if any, would
you
expect to find in the cobalt
chloride paper placed on the
dorsal and ventral surfaces
of the leaf? Give a reason to
support your answer.​

Answers

Answer:

It would melt

Explanation:

Because of the chemical

What time frame best describes when earthquakes occur?

a.Daily
b.Monthly
c.Yearly
d.Quarterly​

Answers

Answer:

D

Explanation:

it mostly occurs quarterly

Quarterly​ time frame best describes when earthquakes occur.

What is earthquake and its causes?

An earthquake is the shaking of the surface of the Earth resulting from a sudden release of energy in the Earth's lithosphere that creates seismic waves.

Earthquakes are the result of sudden movement along faults within the Earth. The movement releases stored-up 'elastic strain' energy in the form of seismic waves, which propagate through the Earth and cause the ground surface to shake.

Over 80 per cent of large earthquakes occur around the edges of the Pacific Ocean, an area known as the 'Ring of Fire'; this where the Pacific plate is being subducted beneath the surrounding plates.

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What is a nebula? A. The core of a massive star B. A cloud of gas and dust in space C. A swirling disk with a lot of gravity D. The debris remaining after a supernova

Answers

Answer:

its B. a cloud of gas and dust in space

Nebula is a cloud of gas and dust in space. The correct option is B.

What is special regarding nebula?

A nebula is a distinct luminescent component of the interstellar medium that can be composed of ionized, neutral, or molecular hydrogen, as well as cosmic dust.

When stars form within a nebula, they emit a stream of charged particles known as stellar wind.

Massive stars and young stars have stellar winds that are much stronger than the Sun's.

When the wind collides with the gas in the nebula, it creates shock waves or hydrodynamic instabilities, which shape the gas clouds.

Nebulae are frequently star-forming regions, as seen in the Eagle Nebula's "Pillars of Creation."

Thus, the correct option is B.

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explain the structure of nephrons

Answers

Structure of nephron : The filtration units in the kidney are called nephrons. Each kidney has a large number of nephrons which are packed closed together. Nephrons consist of a cup shaped Structure called Bowman's capsule in which a cluster of very thin walled blood capillaries form glomerulis . This cup shaped structure is followed by long tubular structure which is convoluted , twisted and finally leads to the collecting duct.

Functions of nephron : : Nephrons help in filtering nitrogenous waste from the blood. The blood entering the glomerulus contains waste which are filtered in the Bowman's capsule. The filtrate formed may contain some useful substances such as glucose, amino acids, salts and a major amount of water. These are selectively reabsorbed as the urine flows along the tube, The amount of water reabosrbed depends on how much excess water is there in the body andhow much dissolved waste there is to be excreted .

* For structure of nephron * refer to attachment !

What role to 'epigenetics' have to do in genetic expression?

Answers

Answer:Epigenetics is the study of heritable changes in gene expression (active versus inactive genes) that do not involve changes to the underlying DNA sequence — a change in phenotype without a change in genotype — which in turn affects how cells read the genes.

Explanation:Epigenetics is the study of heritable changes in gene expression (active versus inactive genes) that do not involve changes to the underlying DNA sequence — a change in phenotype without a change in genotype — which in turn affects how cells read the genes.

Epigenetics is the study of heritable changes in gene expression do not involve changes to the underlying DNA sequence a change in phenotype without a change in genotype which in turn affects how cells read the genes.

How many brains does a octapus have​?​

Answers

Answer:

9 brains

Explanation:

No explanation, but you can fact check this by looking it up :)

Answer:

9 Brains are there...!

hope this helps

a
11
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18
Change the stimulus to read: Edward Jenner?'s smallpox inoculation experiment was based on his observation that
dairymaids who had had cowpox did not contract smallpox. How did Jenner form his hypothesis from this observation?
He asked what would happen if he inoculated a person with cowpox fluid and then later with smallpox fluid.
He tested different existing inoculations to see which one was most effective in preventing smallpox.
He observed dairymaids who had contracted cowpox to see whether they became immune to smallpox.
He drew a conclusion about dairymaids who got cowpox becoming immune to getting smallpox.
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Next
Submit

Answers

Answer: It's A

Explanation:

Pollen grains help scientist

Answers

Answer:

true

Explanation:

Pollen grains help scientists identify plants and make assumptions on past climate conditions. understand tree growth and make assumptions on past climate conditions.

Answer:

A

identify plants and make assumptions on past climate conditions.

Which correctly lists three main causes of deforestation?

A.) air pollution, mining, logging
B.) mining, cattle ranching, logging
C.) cattle ranching, water pollution, air pollution
D.) water pollution, logging, mining

Answers

Answer:

B

Explanation:

Took the test 2021

This lab activity is designed to explore the effect of two substances on the heart rate of a Daphnia magna specimen. One of the activities in this lab is to measure the heart rate when the Daphnia is exposed to alcohol. In the experimental setup, what would be the independent variable?

Answers

Answer is given below

Explanation:

Heart rate was studied in this experiment and is the dependent variable studied or measured. This is a dependent variable. An independent variable is a variable whose modulation is not affected by any other variable in the experiment. Here is the alcohol independent variable. Other substances such as intelligence are also independent variables.

which of the following best describes the process of conjunction​

Answers

Answer:

there is not any options given..

Explanation:

but conjuction is a noun.it joining together elements..

for an example i can both play volleyball and football ...

hope this help you.

Aside from being a good marksman, what is the key to making a clean kill?
A
luck
B
patience
C
range
D
weather

Answers

Answer:

C. range

Explanation:

Being a good marksman requires a very good range of whatever target you intends to shoot.

Adrian caught a virus while staying with his grandmother. A few years later, his mother and sister got the same virus. This virus could spread through touch and direct contact. However, Adrian did not contract the virus this time, even though he was living with his mother and sister. Why did he not get sick? Adrian’s adaptive immunity remembered the antigens from the virus and gave him lifelong immunity to it. Adrian’s innate

Answers

Answer:

Adrian's adaptive immune system remembered the antigens from the virus. so he becomes immune to it.

Explanation:

Answer:

Adrian’s adaptive immunity remembered the antigens from the virus and gave him lifelong immunity to it.

Adrian’s adaptive immunity produced a higher amount of specific antibodies for the antigen, preventing the virus.

Explanation:

Continue adding new species to your volcanic island until you have a successful ecosystem. Drag and Drop the species in order to how they invade the volcanic island. Lichen, Climax community, Bushes, Primary consumers, Pollinators, Moss, Secondary consumers, Trees, Tertiary consumers, Flowers, and Grass

Answers

Answer:

The order of arrangement is as follows

Lichen →Grass → Moss → bushes → Flowers  → Pollinators → Trees → Primary consumers → Secondary consumers → Tertiary consumers

Explanation:

The type of succession that results in a successful ecosystem where initial soil condition is a volcanic island devoid of life any life form and without a soil formation is that of primary succession and involves the gradual ecosystem growth in a long time duration

Organic activity in primary succession is started by pioneer organic species which develop a community of interacting organisms from their biological activities resulting in the arrival of new species and the continuing development simple initial community into a successful complex ecosystem.

Which types of measurement are used to describe quantities of heat and temperature ?

Answers

Answer:

There are three different systems for measuring heat energy (temperature): Fahrenheit, Celsius, and Kelvin. In scientific measures, it is most common to use either the Kelvin or Celsius scale as a unit of temperature measurement.

Explanation:

Hope this helps you!

the main respiratory surface in man is; Select one: A. alveolar wall B. internal nostrils C. bronchial wall D. tracheal wall

Answers

Answer:

answer is alveolar wall

Answer:

Option A

Explanation:

Alveolar Wall forms the main respiratory surface where exchange of gass happens.

Which of the following processes takes place in the ribosomes of a cell

Answers

Answer:

protein synthesis

Explanation:

The answer is protein synthesis

Importance of freezing stem cells in South Africa?

Answers

Answer:

Stem cells are special cells found in the human body which has the ability to change into different cell types and functions.

They are expensive in South Africa and are freezing the stem cells helps in the preservation of the cells for research works in the medicine. They are also used in the treatment of different illnesses which requires cells and tissue transplants.

What about fast music high temperature? How fast would your friends move and how close would they be to each other

Answers

Answer:

Temperature can be called the high speed temperature.

Explanation:

Temperature can be called a speed at which the music has been played. In temperature, there are three primary ways through that a person can communicate their music.

The BPM: The beat per minute, it indicates the beep or beat per minutes. This is responsible for high temperature and low temperature in music. The Italian Terminology: When people talks about the tempo, it is Italian words that has communicate about the tempo in music. Modern language: The modern language of music tempo is fast, slow, relaxed, moderate etc. The drummer may develop the solo and tempo establishes for others.

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Which statement best describes a dominant allele which of the following angles is coterminal with 5pi/3? pi/3, 2pi/3, 4pi/3, 5pi/3 In response to the British armys killing of patriots at Lexington, the patriots attacked British troops at an element is something inserted into a web page light text images videos and hyperlinks which of the following sentences has both Compares and contrasts text and image hyperlink A) both text and image hyperlinks help users jumped to a different website or document and they are attached to the same type of element B) only text hyperlink connect users to other website and documents for both image in text hyperlinks can be inserted and blue Griffin C) text an image hyperlinks both help uses jump to a different website or document but they are attached to different types of elements D) text hyperlink to image hyperlinks are attached to the same type of elements but take users different locations HELP!!!!!!!!!!! Which are considered two of the special properties that are used to identify certain minerals?O hardness and lusterO magnetism and fluorescenceO streak and colorO cleavage and fracture PLS ANSWER I WILL MARK U AS THE BRAINLIEST!!! Correct 36.2598 to a) decimal place. b) To the nearest hundredth. c) to nearest 0.001 d) to the nearest whole number Translate the following statements into symbolic form using capital letters to representaffirmative English statement.If Maria Cantwell promotes alternative energy,then if Patty Murray supports wilderness areas, then Dianne Feinstein's advocating gun control implies that Susan Collins does so,too. Big Byte Inc. sold 15,000 computers to the government of India. Instead of receiving cash, the company received refined petroleum as payment. This is an example of how many millimeters are in a meter In a class of c children,2/5 are boys What fraction are girls? Which is the most plausible theme in the raven Hypochlorous acid is formed in situ by reaction of aq. sodium hypochlorite solution with acetic acid. Draw balanced chemical equations to show the formation of hypochlorous acid and protonated hypochlorous acid. Place the characteristics and goals of each country into the correct category.encouraged communist revolutionsUnited StatesSoviet Unionfought the spread of communismpursued stronger democracywanted buffer states for protectionhad a democratic governmentwas ruled by a dictator Line A has an x-intercept of -4 and a y-intercept of 8. What is its slope? The main setting of "Seventh Grade" is a Drag the tiles to the boxes to form correct pairs. Not all tiles will be used. Match the circle equations in general form with their corresponding equations in standard form. x2 + y2 4x + 12y 20 = 0 (x 6)2 + (y 4)2 = 56 x2 + y2 + 6x 8y 10 = 0 (x 2)2 + (y + 6)2 = 60 3x2 + 3y2 + 12x + 18y 15 = 0 (x + 2)2 + (y + 3)2 = 18 5x2 + 5y2 10x + 20y 30 = 0 (x + 1)2 + (y 6)2 = 46 2x2 + 2y2 24x 16y 8 = 0 x2 + y2 + 2x 12y 9 = 0 Which is true about all quadratic equations that contain a difference of squares? Only the value of c is a perfect square. Only the value of a is a perfect square. The value b=0. The value |b|=2[tex]\sqrt{a} \sqrt{c}[/tex] i-ReadySofiaThe area of a rectangle is 7/9 square feet. The width of the rectangle is 2 1/3 feet. What is the length of the rectangle? Which sentence contains the viewpoint?O I am writing to you today to discuss the situation atthe downtown park.O Recently, my family and I attended the annual townpicnic there.O Unfortunately, we were mobbed by unruly geesewho stole our lunches.O The overwhelming number of geese at the park hasbecome unacceptable Which of the following biotic organisms makes its own energy from inorganic substances?producersconsumersdecomposersminerals