The 30 trillion or so cells in your body require a continuous supply of oxygen and nutrients and an unending removal of waste materials. the blood carries these materials in the body's circulation within a series of closed tubes, called

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Answer 1
Sounds like Your cardiovascular system, the closed tubes must be your blood vessels, siencey  term: your Angio, which means blood vesels


Related Questions

What is air pressure? A. Earth's gravity pulling down on air molecules. B. Constant collisions between air molecules due to their high energy C. The result of air being confined to a particular volume in the atmosphere D. The Sun's gravity pulling on Earth's atmosphere

Answers

Answer:

Earth's gravity pulling down on air molecules.

Explanation:

Answer on Odyssey-ware

A 33-year-old pregnant client asks the nurse about testing for birth defects that are safe for both her and her fetus. which test would the nurse state as being safe and noninvasive

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The correct answer is an Ultrasound The nurse would state that an ultrasound is a noninvasive test that is completely safe for both mother and child. Amniocentesis, CVS, and percutaneous umbilical cord sampling are invasive tests that are associated with maternal and fetal risk

Just before you went on a job interview you broke out into a cold sweat, experienced shortness of breath and felt a need to go to the bathroom. these symptoms were most likely produced by your ________ nervous system.

Answers

central nervous system

These symptoms were most likely produced by your sympathetic nervous system.

The autonomic nervous system regulates involuntary physiological activities through the sympathetic nervous system. The "fight or flight" response, which prepares the body to react to stress or imagined threats, is the system in question.

The sympathetic nervous system activates heart rate, airway dilation, sweating, and adrenaline release. These responses enhance vigilance and vitality and reallocate resources to vital functions needed to adapt to a stressful situation, such as a professional employment assessment.

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How do conservation tillage practices in agriculture benefit the soil?



a.

They increase soil erosion rates.


b.

They decrease water absorption.


c.

They decrease water storage.


d.

They increase soil nutrient levels

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Answer:

D. They increase soil nutrient levels

Tina's left tibial pulse is graded as 2+. this finding is:

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Tina's left tibial pulse is graded as 2+. This finding is normal. Pulses are graded on 4 point scale in which 4+ is a bounding pulse, sometimes visible, 3+ is bounding, full and brisk, easily palpable, 2+ is normal, average, slightly weak but palpable,1+ is weak, diminished and barely palpable, and 0 is absent. 

Why are habitats limited resources? how might their destruction affect the long-term survival of species?

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Habitats like forests are collected of there wood or animals science there's a limited amount of trees you can take in the world these are limited resources. if we were to chop down all the trees in the world there would be a lot less oxygen there would also be very little life on earth than there is today because of trees being used as shelters, cover and a source of water.

During baking, sometimes dough spills over the sides of the bread pan. this may occur because

Answers

4 possible answers:
1: the initial temperature was not hot enough.
2: the protein did not congeal properly.
3: the yeast continued to ferment during baking.
4: the dough was overfermented prior to baking.

Dough may spill over during baking mainly due to an excessive amount of yeast, which leads to an overproduction of carbon dioxide, causing the dough to rise and expand more than it should. The heat during baking can exacerbate this expansion.

During baking, dough may spill over the sides of the bread pan due to the action of yeast. Yeast is a key ingredient in bread making, as it ferments the sugars present in the dough, producing carbon dioxide gas. This gas causes the dough to expand and rise. If a chef accidentally puts too much yeast in the dough, the quantity of carbon dioxide produced during fermentation can be excessive, resulting in the dough rising too much and spilling over. This overexpansion is further exacerbated by the heat of the oven, which can encourage more fermentation and expansion as referenced by Charles's Law, which implies that gases expand when heated. The correct amount of yeast ensures that the dough rises just enough to make the bread light and fluffy without overflowing.

Moreover, over-kneading the dough can also affect the texture of the bread, making it tough. As the bread rises, the CO₂ that causes this rising action comes from the yeast fermentation process. When bread is baked, the yeast continues to ferment the sugars, which typically causes the dough to expand further before the yeast eventually dies from the heat.

which of the following is part of the cell theory

All cells are produced from other cells
All cells are the same.
cells are independent structures
Cells are able to make new organisms.

Answers

A. All cells are produced by other cells, and this is a confirmed answer, no worries

The part of the cell theory among the given options is All cells are produced from other cells.

The correct option is A

The cell theory is a fundamental principle in biology that describes the basic properties and functions of cells. It consists of three main principles: All living organisms are composed of one or more cells.

The cell is the basic unit of structure and function in living organisms.

All cells arise from pre-existing cells through cell division. The statement "All cells are produced from other cells" aligns with the third principle of the cell theory. It emphasizes that new cells are generated through the process of cell division, where existing cells divide to produce daughter cells. This principle applies to all forms of cellular life and is a cornerstone of our understanding of cellular reproduction and the continuity of life.

Hence , B is the correct option

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The intestinal epithelium absorbs monosaccharides by __________

Answers

facilitated diffusion plus cotransport mechanisms

Reduced vitamin b12 absorption from the small intestine due to reduced intrinsic factor production in the stomach results in condition called

Answers

its called pernicious anemia. 

How do environmental factors and genetic factors affect natural selection?

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Environmental and Genetic factors are both incredibly complex structures, but all will create mutations of the species. The genetic variability created by mutations will be tested by natural selection, which can and will determine which characteristics are inherited in a population over time. 

What substance is added during hydrolysis in order to break down food macromolecules? carbon dioxide amino acid oxygen water?

Answers

The answer should be water

Answer: Water

Explanation:

Hydrolysis is the process by which bond between the macromolecules splits by the addition of water. This process is catalysed is enzymes.

Most of the macromolecules like carbohydrates, protein, fat inside the human body is broken down by the help of water only.

WE can say that polymer is broken into monomer by the help of water.

Thus, the correct answer is Water.

The sequence that best illustrates the flow of energy through an ecosystem is

(1) sunlight → plant → wolf → rabbit



(2) plant → sunlight → rabbit → wolf



(3) sunlight → plant → rabbit → wolf



(4) wolf → rabbit → plant → sunlight

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the answer is 3 because the sun transfers to the plants, the plants transfer to the rabbits, and the rabbits get eaten by the wolves

The higher plant type that carries its seeds in cones is the ________.

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The higher plant type that carries its seeds in cones is the gymnosperm. Any vascular plant that imitates by methods for an uncovered seed, or ovule—not at all like angiosperms, or blossoming plants, whose seeds are encased by develop ovaries, or organic products.

Walking ____ is a good exercise choice for individuals with leg and back problems.

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Is this multiple choice because there could be several answers for this

Blood returning from the body (systemic circulation) first enters which chamber of the heart?

Answers

right atrium because

Which of the following scientists contributed to the current understanding of genetics

Answers

You have to put the options 
C. Rosalind Franklin

To ensure sound nutrition, the mother's diet during pregnancy should include:

Answers

an additional 25 grams of protein each day

One modification of the small intestine that increases the surface area is ____.

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Answer:  the "villi" .
_________________________________________
(in addition to the "microvilli" attached to the "villi" -- which further increase the surface area). 
_________________________________________

which energy molecule is produced as a result of cellular respiration?
A) ATP
B) RNA
C) DNA
D) ADP

Answers

A. ATP

during cellular respiration, glucose is broken down in the process of oxygen to produce carbon dioxide and water. The energy released during the reaction is captured by the energy-carrying molecule ATP.

The four components of cardiorespiratory training do not include weight. type. frequency. time.

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A cardio-respiratory training program comprise of activities that increases heart rate and involves muscle groups. It allows the lungs and heart to work more efficiently lowering the risk of coronary and respiratory diseases. The four components of cardio-respiratory training include:
1. Type
2. Frequency
3. Time
4. Intensity
It does not include weight.

Answer: WEIGHT

The correct option is A i.e. weight

The four components of cardiorespiratory training are Frequency, Intensity, Time, and Type. Therefore, weight is not included among these components.

The four components of cardiorespiratory training are described using the F.I.T.T. principle, which stands for Frequency, Intensity, Time, and Type.

In the context of this principle, the correct choice for the component that does not belong is weight.

Here's a quick rundown of each element:

Frequency refers to how often you perform the exercise, for example, 3 days a week.Intensity relates to how hard you work during the exercise session, like moderate or vigorous intensity.Time denotes the duration of each exercise session, such as 30 minutes per session.Type describes the kind of exercise you do, like running, cycling, or swimming.

The complete question is:

The four components of cardiorespiratory training do not include
a. weight
b. type
c. frequency
d. time

People feel happier in the presence of happy people than in the presence of depressed people. this is known as:

Answers

Answer:  "the chameleon effect" .
__________________________________

Condition without pulse (loss of consciousness that occurs when the body cannot get the oxygen it needs to function -
e.g., choking, drowning, carbon monoxide poisoning, suffocation)

Answers

ASPHYXIA is the loss of consciousness that occur when the body can not get the oxygen it needs to function. Asphyxia can be caused by chocking, drowning, carbon dioxide poisoning and suffocation. Symptoms of asphyxia include: breathing difficulty, rapid pulse, high blood pressure, convulsion, cyanosis, etc. Treatments include: removal of foreign body, emergency resuscitation, cardio pulmonary resuscitation, etc.

If a baby boy inherits a recessive allele from his mother, in which of the following circumstances would he most likely exhibit that recessive trait? (2 points)

a.The allele is X-linked.

b.His mother's father also exhibited the trait.

c.The allele skips a generation.

d.He inherited the dominant trait from his father.

Answers

a.The allele is X-linked

Women have two X chromosomes while men have one X and one Y.
In the case of a recessive mutation on the X chromosome passes from the mother to the baby boy, the boy will express the recessive allele. Even though it's recessive, and in allosomes both alleles need to be present, when it comes to this situation the boy only has one X chromosome so it's indifferent if the gene is recessive or dominant.

Answer:

The allele us X-linked

Explanation:

the rusty crayfish is harmful to Native species of crayfish because it clear cut the bottom of waterways leaving native species without a food supply

T or F

Answers

I think its true hope this helps.

Answer: True

Explanation:

An invasive species is the one which competes with the members of the native species for resources when introduced to a new ecosystem.

According to the given situation, a rusty crayfish is harmful to the native species of crayfish. This tells us that rusty crayfish is invasive for native species of crayfish. Thus the native species left without food as there exists competition for food.

Q40 stem cells that can differentiate into osteoblasts are called ________ cells.

Answers

The answer is osteoprogenitor 

What are the neurons called that pick up sensations from receptors and carry them into the brain?

Answers

Neurons that pick up sensations from receptors and carry them into the brain are sensory neurons.

Some investigators concluded that the first organisms consisted of rna rather than dna. what is importance of this "rna world" period?

Answers

It was the bridge from simple chemistry and DNA - based cells.

Which statement about the scientific method is true? The scientific method involves developing and testing conclusions. The scientific method is a linear approach to accumulating scientific knowledge. The scientific method is used in different ways by different scientists. The scientific method involves developing a question to answer a hypothesis.

Answers

the scientific method involves developing a question to answer a hypothesis.

Answer: The answer is Option D

When the urinary bladder becomes stretched, there is an increase in the frequency of action potentials traveling from..?

Answers

the urinary bladder to the sacral region.
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