How does the circulatory system work at the organ level?

The heart pumps the blood.

Blood cells carry nutrients.

Nutrients are delivered throughout the body.

Cardiac muscle contracts.

Answers

Answer 1

Answer:

THE BLOOD CELLS CARRY NUTRIENTS

Explanation:

Answer 2

Answer:

The heart pumps the blood.

Explanation:

I took the quiz and I used the other persons answer and got it wrong. The right one is the heart pumps the blood


Related Questions


The figure shows two water molecules held together by a/an
bond. (arrow tip)

A. covalent
B.hydrogen
C.ionic
D.van der Waals

Answers

Answer:

b) Hydrogen

Explanation:

The figure shows the hydrogen bonding of two H2O molecules. The red atom is Oxygen which is δ−, and the white atom is Hydrogen which is δ+, this is determined by their electronegativity. H2O molecules can form hydrogen bonding when the Hydrogen atom bonds through hydrogen bonding to the oxygen atom and vice versa.

This type of bond is an intermolecular bond

13. What difference(s) occur between mitosis and meiosis?
A. Mitosis involves the daughter cells being genetically identical to the parent cell
B. Meiosis involves the production of gametes (haploid cells), not so for mitosis
C. Meiosis results in genetic variation in the offspring
D. Meiosis involves two cell reductions (cell divisions)
E. All of the above are true

Answers

Answer:

E

Explanation:

E is the answer because first mitosis occur in cell while meiosis occur in a body

Define antibiotic resistance.

Answers

Answer:

Answer: Antibiotic resistance occurs when the body builds up a resistance to antibiotics.

Explanation:

Which of the following occurs when the moon is closest to the Earth?

periapsis

apogee

revolution

ellipse

Answers

Answer:

periapsis

Explanation:

Periapsis is the point when the orbiting object comes the closest to the thing it is orbiting around; for example, the moon is at periapsis when it is closest to the Earth.

Moon revolves around the earth in an elliptical pathway. At some point moon approaches earth at its closest point.  This point is called perigee. This closest approach is called periapsis.

What is periapsis?

Moon is the only satellite of earth. Moon revolves around earth along with rotating about its own axis. Earth have a gravitational pull into moon and this force will be different at different point of orbital revolution.

Moon's orbit is elliptical. The points of farthest approach to earth is called apogee  and the closest point is called perigee. Every planet will have an apogee and perigee with sun as for earth and also with their  satellites.

The farthest approach of moon from the earth is called apoapsis and the closest approach is called periapsis. Periapsis is also called perilunar, parselene, perilunar etc. Hence, option A is correct.

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the path of a nerve signal involved in kicking a ball .When and where do you motor or sensory nerves fire?​

Answers

Answer:

Explanation:

the path of a nerve signal involved in kicking a ball .When and where do you motor or sensory nerves fire?​

The nervous system is made up of two parts. Each part contains billions of neurons. The first part is the central nervous system. It contains the brain and spinal cord, which is a fibrous, ropelike structure that runs through the spinal column down the middle of the back.

The other part is the peripheral nervous system. It consists of thousands of nerves that connect the spinal cord to muscles and sensory receptors. The peripheral nervous system is responsible for reflexes, which help the body avoid serious injury. It's also responsible for the fight or flight response that helps protect you when you feel stress or danger.

Let's examine an individual neuron up close.

Here is a peripheral nerve. Each one of the nerve bundles, or fascicles, contains hundreds of individual nerve.

Here's an individual neuron, with its dendrites, axon, and cell body. The dendrites are tree-like structures. Their job is to receive signals from other neurons and from special sensory cells that tell us about our surroundings.

The cell body is the headquarters of the neuron. It contains the cell's DNA. The axon transmits signals away from the cell body to other neurons. Many neurons are insulated like pieces of electrical wire. The insulation protects them and allows their signals to move faster along the axon. Without it, signals from the brain might never reach muscle groups in the limbs.

Motor neurons are responsible for voluntary control of the muscles all over the body. The operation of the nervous system depends on how well neurons communicate. For an electrical signal to travel between two neurons, it must first be converted to a chemical signal. Then it crosses a space about a millionth of an inch wide. The space is called a synapse. The chemical signal is called a neurotransmitter.

Neurotransmitters allow the billions of neurons in the nervous system to communicate with one another. That's what makes the nervous system the body's master communicator.

'' ang wikang filipino ay dinamiko'' magbigay ng patunay​

Answers

sinasabing wika ay dinamiko sapagkat ito ay nagbabago at ito ay buhay

ito ay patuloy na magbabago at nagbabago ayon na rin sa pamumuhay ng tao na mabilis ang takbo dulot ng agham at teknolohiya ito ay nadadagdagan ng mga bagong bokabularyo

ang pagiging malikhain ng mga tao ang lumilikha ng mga bagong salita

'' the filipino language is dynamic '' give proof

examples of tissues

Answers

I HOPE IT WILL HELP YOU.

THANK YOU.

Tissues is based off of differences in their anatomy and functions

This illustration shows a kind of animal that is a free-living organism.

What is the common name of this organism?


planarian


tapeworm


fluke


amoeba

Answers

Answer: fluke

Explanation:

Which of the following is the observed result of aquatic species exposed to a toxin?

I. Developmental dysfunction
II. Gender imbalances
III. Increased reproduction rates

I, II, and III
I and II
II and III
I only

Answers

The release of toxins such as heavy metals into the water bodies has been deeply frowned at .This is because toxins usually have  a negative effect on aquatic species. The negative effects include:

Developmental dysfunctionGender imbalances

Toxins also gives rise to developmental dysfunction in the animals . The toxins ensures that there is a shortage by interfering/reacting with the nutrient needed for the growth of these organisms.

The issue of gender imbalance is also true as some toxins causes water bodies to be warmer which favors the presence of female  aquatic species such as reef fish.

Toxins causes aquatic bodies to be short of oxygen supply as the elements or compounds released vie for oxygen with the animals which may lead to less reproduction rates and death in severe occasions.

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Which option identifies the components of the crop nutrient management plan in effect in the following scenario?
A grower managing a particular field first grows a crop of alfalfa early in the season, which is then tilled into the soil as
green compost, accomplishing both nitrogen fixation and the addition of organics.
O recommended timing and recommended rates
O crop sequence, and sources and forms of nutrients
crop sequence and recommended methods

this is for my plant systems class
O estimated yield, and sources and forms of nutrients

Answers

Answer:

Recommended timing and recommended rates (assuming correct)

Explanation:

It may mean adding manure or compost to enrich the soil structure.

Brainliest!!!!!!!!!!!!!!!

Answers

Mitochondria, using oxygen available within the cell convert chemical energy from food in the cell to energy in a form usable to the host cell. The process is called oxidative phosphorylation and it happens inside mitochondria. ... In ATP the energy is stored in the form of chemical bonds.

please mark me the brainliest if i was helpful sorry if i was not

Answer:

A. Cellular Respiration.

Explanation:

3. Common reasons for landslides include all EXCEPT: *
(1 Point)
rain
O earthquakes
wildfires
space weather

Answers

Answer:

wildfires

hope it will help

Answer:

Space weather

Explanation:

Rain causes landslides.

Earthquakes cause landslides.

Wildfires cause landslides.

Space Weather has no geological effect possible to cause them.

'can i pls have brainliest? i need it for my goal Thanks! <3'

qué tipos de deformaciones pueden sufrir las rocas? Explicalas

Answers

Explanation:

Cuando una roca se somete a un esfuerzo creciente, pasa por 3 etapas sucesivas de deformación. Deformación elástica: en la que la deformación es reversible. Deformación dúctil: en la que la deformación es irreversible. Fractura: tensión irreversible en la que el material se rompe

During a third-trimester ultrasound, what would a doctor expect to observe in a fetus?

Answers

examine the placenta, oxygen, blood pressure, growth, measurement, if baby is head down

How does gulf stream affect global temperatures ?

Answers

The strong current of warm water influences the climate of east coast of Florida, keeping temperatures there warmer in the winter and cooler in the summer than the other southeastern states.

Which of the following factors was likely the greatest
contributing factor to the 1916 influenza outbreak?

Answers

Answer\

poor sewage systems

Explanation:

how are active faults and inactive faults similar

Answers

Active faults are structure along which we expect displacement to occur. By definition, since a shallow earthquake is a process that produces displacement across a fault, all shallow earthquakes occur on active faults. Inactive faults are structures that we can identify, but which do no have earthquakes.

Answer:

Active faults are structure along which we expect displacement to occur. By definition, since a shallow earthquake is a process that produces displacement across a fault, all shallow earthquakes occur on active faults. Inactive faults are structures that we can identify, but which do no have earthquakes.

Explanation:

90% of energy that gets lost as you move up a food pyramid or chain gets lost as

Answers

Answer→ heat

Hope that helps

Where do plants get water from ?

Answers

Answer:

Rain

Explanation:

please give brain award

Plants absorb water through their roots from the soil.

describe the factors that influence the declining of Amphibians population​

Answers

Answer:

Hypothesized causes for the declines include habitat destruction (the most obvious cause), climate change, pathogens, introduced exotic species, pollution, and increased UV radiation. These agents may act alone or in combination to contribute to the decline of amphibian populations.

Explanation:

I think this is the answer

Hope it helps you

Answer:

A few causes for the declines in the Amphibian population include habitat destruction, climate change, introduced exotic species, germs or pathogens, pollution increases, and increased UV radiation. These things may act alone or in combination to contribute to the decline of amphibian populations.

Here are 9 factors that have  impacted the amphibian population

Insects are attracted to lights making them scarcer within the amphibian habitats.

Habitat modification.

Habitat fragmentation.

Pollution and chemical contaminants.

Ozone depletion, ultraviolet radiation and cloud cover.

Disease.

Introduced predators.

Increased noise levels.

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Miss Hawaii

Question of the day, who ever answers it first gets brainliest:
Do animals have a cell wall?

Answers

Answer:

yes they do

Explanation:

Answer:

No, animals do not have a cell wall!⊂(・ω・*⊂)



Tell the story of the predator/prey loop.
If the owl population goes up, then ...


Answers

Answer:

Below : )

Explanation:

Well, in most cases if the predator population rises most likely the prey population decreases this is because there is a big population of the predator which allows more of them to eat the prey so the prey decreases. Now when the prey decreases this again affects the predators because now the predators are limited to food so that causes many of them to decrease.

In this scenario, if the owl is the predator, as the population rises, its prey will decrease.

If the owl is the prey, the predators would most likely increase.

Hope this helps!

HELP ASAP! I'M DONE WAITING! 100 POINTS AND BRAINLY!

Cancer occurs when signals for ________ are blocked or misinterpreted. A) apoptosis B) endocytosis C) exocytosis D) mitosis

Answers

Answer:

Apoptosis

Explanation:

its also in the comments, hope this helped!

I need this done before 3pm please and please DO NOT DELETE any one's answers unless its incorrect.
1. In the overall energy transformation in photosynthesis, the energy of ____ is converted to the energy of ____.

2. In the overall energy transformation in cellular (aerobic) respiration, the energy of ____ is converted to the energy of ____.

3. In the overall energy transformation in fermentation, the energy of ____ is converted to the energy of ____.​

Answers

Answer: 1. Photosynthesis converts solar energy into chemical energy that plants use to make glucose so they can grow.

2. Cellular respiration is a set of metabolic reactions and processes that take place in the cells of organisms to convert chemical energy from oxygen molecules or nutrients into adenosine triphosphate (ATP), and then release waste products.

3. Any chemical process that yields energy is known as a catabolic pathway. Cells release the energy in those organic molecules by breaking them down. Through cellular respiration and fermentation, those bonds are broken releasing the potential energy of organic molecules into kinetic energy that cells use to do work.

Explanation:

What is the purpose of technology?
A. Creating political pressure
B. Finding new scientific discoveries
C. Solving problems
D. Regulating the government

Answers

The purpose of technology is to solve problems and improve various aspects of human life. Option C.

The purpose of technology is multifaceted and encompasses various objectives.

However, at its core, technology is developed to address challenges, solve problems, and enhance different facets of human existence. Whether it is improving efficiency, increasing productivity, advancing communication, or creating innovative solutions, technology aims to provide practical and tangible benefits.

Technological advancements enable us to overcome obstacles and improve the quality of life.

From medical technologies that diagnose and treat diseases to renewable energy sources that combat climate change, technology plays a pivotal role in finding solutions to complex problems. It empowers us to tackle issues in areas such as healthcare, transportation, agriculture, education, and environmental sustainability.

Furthermore, technology drives scientific discoveries and innovation. It provides scientists with tools and methodologies to conduct research, gather data, and analyze information, leading to new insights and understandings of the world.

Technological advancements in fields like computing, artificial intelligence, and genetic engineering have opened up new frontiers for exploration and scientific breakthroughs.

While technology can be used for political advocacy, social mobilization, and improving governance processes, these are additional applications rather than its fundamental purpose.

The primary aim of technology is to address challenges, solve problems, and enhance human experiences in various domains. It serves as a catalyst for progress and development, shaping the way we live, work, communicate, and interact with the world around us. SO Option C is correct.

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Analysis of _____ can be used for very precise personal identification. It is even used in anthropology to identify the bones of a deceased person.

odontology
DNA
long bone measurement
fingerprinting

Answers

Answer:

DNA

Explanation:

The DNA of a human being is very unique as each human has a different sequence of it. This allows for it to be used for very precise identification of humans such that it has been used to solve crimes.

DNA is also present in every cell in the human body which is why it is useful in anthropology as well. Anthropologists can simply extract cells from a bone and through the DNA extracted, find out more about a dead person.

Therefore, DNA is the answer.

Answer:

DNA

Explanation:

The heart is positioned in front of the vertebral column and behind the sternum

Answers

Answer:

yes it is located in front of the vertebral column but i'm not sure if it's behind the setrum

Explanation:

PLEASE MARK BRAINLIEST

The sweetness of the cookies changes in every run of the experiment. What type of variable is the change in sweetness?​

Answers

Answer:

It's an independent variable

Explanation:

Because The independent variable is the variable the experimenter manipulates or changes, and is assumed to have a direct effect on the dependent variable.

WILL GIVE BRAINLIEST!!
ATP hydrolysis is needed for active transport. Which of the following requires the transfer of the terminal phosphate group of ATP?

Aquaporins
Carrier proteins
Channel proteins
Sodium potassium pump

Answers

Answer:

I would think Channel proteins but I could be wrong

The sodium potassium pump is the only one of the options that requires the transfer of the terminal phosphate group of ATP.

Active transport is the process of moving molecules across a cell membrane against their concentration gradient. This requires energy, which is provided by ATP hydrolysis.

Aquaporins are water channels that allow water to move through the cell membrane without requiring energy. Carrier proteins and channel proteins are also involved in passive transport, which does not require energy.

The sodium potassium pump is an example of active transport. It uses the energy from ATP hydrolysis to move sodium ions out of the cell and potassium ions into the cell. This creates an electrochemical gradient, which drives the movement of other ions and molecules across the cell membrane.

The sodium potassium pump is essential for maintaining the electrical potential of the cell membrane. It is also involved in the transport of nutrients and waste products into and out of the cell.

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khái niệm, tác dụng ,cơ chế tác dụng của vi khuẩn sinh acid lactic

Answers

Translation is Vietnamese to English:
The concept, effect, mechanism of action of lactic acid bacteria
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