What is a common cause of underlying tissue not receiving an adequate blood supply?
Answers
Atherosclerosis, the buildup of plaque in arteries, is a common cause of inadequate blood supply to underlying tissues.
Atherosclerosis is a condition where fatty deposits called plaque accumulate within the arteries, leading to their narrowing and reduced blood flow. This buildup occurs over time due to factors like high cholesterol, smoking, high blood pressure, and diabetes. As the arteries become narrower, the blood supply to the tissues they serve diminishes, resulting in inadequate oxygen and nutrient delivery to the underlying tissue. This can lead to various complications, such as tissue damage, organ dysfunction, or even complete blockage of blood flow. Addressing risk factors, adopting a healthy lifestyle, and managing conditions like hypertension and diabetes are crucial in preventing or managing atherosclerosis and its consequences.
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Related Questions
A biologist in Antarctica is trying to fudge some penguin data by moving the cute little guys across the ice. The evil biologist ties three, 4 kg penguins together such that there is a one meter length of rope between each penguin. The evil biologist then pulls the first penguin with a force of 24 N. What is the tension in the cord between the last two penguins?
Answers
A biologist in Antarctica is trying to fudge some penguin data by moving the cute little guys across the ice. The evil biologist ties three, 4 kg penguins together such that there is a one-meter length of rope between each penguin. The evil biologist then pulls the first penguin with a force of 24 N. The tension in the cord between the last two penguins is 102.4 N.
There are three penguins with a mass of 4 kg each. They are tied together such that there is a one-meter length of rope between each penguin. The biologist pulls the first penguin with a force of 24 N. We need to calculate the tension in the cord between the last two penguins.
Here, the distance between each penguin is 1 m, and the total distance between the 1st penguin and the 3rd penguin is 2 m. The penguins are tied together, so they will move together at the same acceleration. The weight of the penguins is given by:
w = mg
where,
w = weight of the penguins
m = mass of each penguin = 4 kg
g = acceleration due to gravity = 9.8 m/s²
w = 4 × 9.8 = 39.2 N
Now, let's find out the acceleration of the penguins:
a = F/m
where,
a = acceleration
F = force applied = 24 N
M = total mass of the system = 3 × 4 = 12 kg
a = 24/12 = 2 m/s²
The tension in the cord between the last two penguins can be calculated using Newton's second law of motion.
F = ma
Where,
F = force applied
m = mass
a = acceleration
The forces acting on the last two penguins are their weights and the tension in the cord. These two forces are acting in the opposite direction from the force applied by the evil biologist.
Therefore, the net force will be the difference between the tension and weight. Let's find the weight of the last two penguins:
W = mg
where,
W = weight
m = mass of each penguin = 4 kg
g = acceleration due to gravity = 9.8 m/s²
W = 4 × 9.8 = 39.2 N
Let the tension in the cord between the last two penguins be T. So, the net force will be:
Fnet = T - 2w
where,
Fnet = net force = ma = 2 × 12 = 24 NT = 2w + Fnet
T = 2 × 39.2 + 24T = 102.4 N
Therefore, the tension in the cord between the last two penguins is 102.4 N.
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2. Identify each of the following as either an open, closed, or isolated system:
a. Reef ecosystem:
b. Nitrogen cycle:
c. Earth:
d. Biosphere:
e. Solar system:
f. Digestive system:
g. A national park:
h. A large lake:
Answers
Answer:
See explanation
Explanation:
a) open system
b) open system
c) open system
d) open system
e) closed system
f) open system
g) isolated
h) open system
The identification of the following as different systems is given below:
a. Reef ecosystem: open system.
b. Nitrogen cycle: open system.
c. Earth: open system.
d. Biosphere: open system.
e. Solar system: closed system.
f. Digestive system: closed system.
g. A national park: isolated system.
h. A large lake: open system.
What is a closed system?When there is a continuous change brought about by the interchange of matter, energy, and information with its surroundings, a system can be regarded as open.
When there is energy transfer between the system and its surroundings but no exchange of matter, the system is said to be closed.
In contrast, an isolated system is practically never found in nature since it requires the interchange of matter, energy, and information with its surroundings.
Thus, the different types of systems are:
a) open system, b) open system, c) open system, d) open system, e) closed system, f) closed system, g) isolated, h) open system.
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summarize in your own words how plants take energy from the sun and convert it into chemical energy (sugar)
Answers
Answer:
Steps of photosynthesis:
Step 1: Energy is captured from sunlight.
Step 2: Light energy is converted to chemical energy,
which is temporarily stored in ATP and the energy
carrier molecule NADPH.
Step 3: The chemical energy stored in ATP and NADPH
powers the formation of organic compounds, using carbon
dioxide (CO2 ).
Explanation:
Which organism is a primary consumer in the food web below?Chesapeake Bay Waterbird Food WebTertiaryConsumers:SecondaryConsumers:PrimaryConsumers:Producers:GullsandTermsOspreyWading BirdsLargePiscivorous FishSmall PlanktivorousFishZooplanktonBenthicInvertebratesSea DucksBivalvesBald EagleHerbivorousDucksPhytoplankton Submerged AquaticVegetationTundra SwanGeese andSwansVegetation
Answers
The primary consumer is the organism that eats the producer. It gets the at least 10% of the energy stored in a producer. It is above the producer at the trophic level. It may be a herbivore or an omnivore.
ANSWER: Zooplankton, Herbivorous ducks, small planktivorous fish
Thank you I’d really appreciate it
Answers
Magnification calculation:
The following equation should be applied to determine a drawing or image's linear magnification:
Magnification is defined as: Actual size ÷ Image size (with a ruler)
Actual Size Calculation:
The equation can easily be changed to determine a magnified specimen's actual size:
Actual Size = Ruler-measured Image Size ÷ Magnification
Knowing how much an object has been enlarged and being able to determine its true size are both crucial.
As a result, we can describe a structure more precisely and provide comparisons with other structures.
The ratio of the image's height to the object's height is represented by the formula for magnification.
Additionally, the letter "m" stands for the object's magnification. Its formula is also as follows:
Magnification (m) = h / h' Here, the object's height is indicated by the letters h and h'.
Since magnification is a length ratio, it has no units.
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Thrush is caused by ____________ _______________. Group of answer choices Crytococcus neoformans unicellular yeast Trypanosoma brucei infected ticks
Answers
Thrush is caused by the yeast species.
What is Thrush?Thrush is caused by the yeast species Candida albicans, which could be a unicellular organism. Crytococcus neoformans could be a distinctive yeast species that can cause a sort of parasitic disease called cryptococcosis, whereas Trypanosoma brucei could be a protozoan parasite that causes African trypanosomiasis (resting affliction) and is transmitted by contaminated tsetse flies, not ticks.
Cryptococcal meningitis is an contamination caused by the organism Cryptococcus after it spreads from the lungs to the brain. The indications of cryptococcal meningitis incorporate: Cerebral pain. Fever. Neck torment.
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what is the basis for the tremendous genetic diversity resulting from sexual reproduction?a. independent assortment during gemete productionb. crossing over and shuffling of linked genes during meiosisc. random fertilizationd. all of these choices
Answers
The tremendous genetic diversity resulting from sexual reproduction is based on all of the choices listed: independent assortment during gamete production, crossing over and shuffling of linked genes during meiosis, and random fertilization.
Independent assortment refers to the random arrangement of chromosomes during gamete formation, resulting in gametes with unique combinations of genes. Crossing over occurs when homologous chromosomes exchange genetic material during meiosis, leading to new combinations of genes. Random fertilization involves the chance encounter of any two gametes during fertilization, leading to an even greater diversity of genetic combinations in the offspring. Overall, sexual reproduction allows for the creation of offspring with unique genetic traits that increase their chances of survival in changing environments.
The basis for the tremendous genetic diversity resulting from sexual reproduction can be attributed to all of the choices mentioned: independent assortment during gamete production, crossing over and shuffling of linked genes during meiosis, and random fertilization. Independent assortment ensures a unique combination of chromosomes in each gamete, while crossing over during meiosis exchanges genetic material between homologous chromosomes, creating new gene combinations. Finally, random fertilization brings together two genetically distinct gametes, producing offspring with a unique genetic makeup, thus contributing to overall genetic diversity.
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please help
Read the selection from the section "Geological Oceanography."
Resolution drills sediment-core samples and collects measurements from under the ocean floor. This research helps scientists understand our paleoclimate. Paleoclimatology is the study of weather and climate patterns over hundreds of millions of years. Changes in the seafloor reflect changes in Earth's climate, and this information is very useful in predicting our future climate.
What conclusion is BEST supported by this selection?
A
Seeing how the climate affected the seafloor in the past can help oceanographers understand what is happening now.
B
More sediment samples are needed to understand how the landscape of the seafloor has changed over millions of years.
C
The future changes that will occur in the Earth's weather climate patterns are all events that have happened before.
D
Paleoclimatology is unconcerned with the way the effects of weather and climate patterns on the ocean affect marine life.
Answers
adolescents who make the greatest gains in moral understanding have parents who
Answers
Adolescents who make the greatest gains in moral understanding often have parents who engage in open communication, provide consistent guidance, and serve as positive role models.
These parents encourage their children to express their thoughts and feelings, helping them develop critical thinking skills and empathy. By discussing moral dilemmas and ethical choices, they foster an environment that promotes reflection and problem-solving.
Furthermore, such parents consistently set clear expectations and boundaries for their adolescents, instilling a sense of responsibility and self-discipline. They apply consequences that are fair and teach important life lessons, ultimately shaping their children's moral development.
Lastly, these parents serve as positive role models by demonstrating moral values and ethical behavior in their everyday lives. Adolescents who witness their parents acting with honesty, kindness, and respect towards others are more likely to adopt similar values and behaviors themselves. In summary, adolescents with the most significant moral growth typically have parents who communicate openly, provide consistent guidance, and act as positive role models in their lives.
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Give three ways the human body would change if all cells in the human body were the same.
Answers
HELP I’LL GIVE BRAINLIEST!! WORTH 15 POINTS!!!
• State your name and your views on whether prisoners should be permitted to
vote.
• Tell your classmates whether you think voting is a privilege that can be taken
away or a human right that everyone should always have. If it is a human right,
also explain whether you think minors should be allowed to vote.
. State why you think sociologists would be interested in studying the debate
about the voting rights of prisoners.
Answers
Sociologists may be interested in studying the debate about the voting rights of prisoners because it is an issue that involves questions of social justice, political power, and inequality.
Should sociologists study prisoners?The right to vote is a fundamental aspect of democratic societies, and the denial of this right to any group of individuals raises important questions about citizenship, representation, and social exclusion.
Moreover, the debate about the voting rights of prisoners is connected to broader issues of criminal justice and social inequality, including questions about the over-representation of certain groups in the criminal justice system and the ways in which social disadvantage and discrimination may be linked to incarceration.
As such, the study of this issue may shed light on the dynamics of power, inequality, and social change in contemporary society.
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5. Which example demonstrates that all cells come from pre-existing cells?
A. A caterpillar feeds on leaves from an oak tree.
B. An oak tree grows from the seed material in an acorn.
C. Water drips from underneath an oak tree leaf in the morning.
D. Sediment from an area where oak trees were cut down builds up alongside a stream
Answers
Que ocurre con la frecuencia cardiaca cuando vas a hacer una exposicion o presentar una evaluacion
Answers
Answer:
Su ritmo cardíaco aumentará significativamente.
Explanation:
El sistema nervioso simpático es de acción más rápida que el sistema parasimpático, y se mueve a lo largo de neuronas muy cortas y rápidas. El sistema nervioso simpático activa una parte de la glándula suprarrenal llamada médula suprarrenal, que luego libera hormonas en el torrente sanguíneo. Estas hormonas activan los músculos y glándulas objetivo, haciendo que el cuerpo se acelere y se ponga tenso, así como más alerta. Las funciones que no son inmediatamente esenciales (como el sistema inmunológico) se cierran hasta cierto punto.
Cell misconceptions
Directions: For each of the following cell misconceptions, write fact or evidence that disproves the claim.
1. Cells are smaller than atoms.
2. Plant cells only have chloroplasts, not mitochondria.
3. There are two kinds of cells: plant and animal.
4. All cells are the same size.
5. Animal cells only have a cell membrane while plant cells only have a cell wall.
6. Cells are flat like a pancake.
7. Prokaryotic cells don't have a nucleus or DNA.
8. All of the cells in one species of organism are the same size and shape.
9. Cells are within the human body, but do not make up the human body 10. The larger the organism, the larger the cell size.
Answers
2. they have both just use sunlight to gather energy unlike animal cells
suggest two steps to save water
Answers
Answer:
There are a few easy things you can do at home to help relieve the strain on your local water supply while also saving money. While brushing your teeth, turn off the faucet. When you have a full load, just use the washing machine and dishwasher. Use a low-flow shower head and aerators on the faucets. Repair any leaks.
Explanation:
Answer:
use water carefuly.
use when needed.
Explanation:
Suppose 14C-labeled CO2 is used to form malonyl-CoA from acetyl-CoA. If this labeled malonyl-CoA is used for palmitate synthesis, which carbon atom(s) in the fatty acid would be radiolabeled? a. All even numbered carbons. b. The methyl terminal carbon. c. All odd numbered carbons. d. Only the alpha and beta-carbons. e. None of the carbons. Submit Answer Tries 0/99
Answers
If 14C-labeled CO2 is used to form malonyl-CoA from acetyl-CoA, the carbon atoms that would be radiolabeled in the resulting palmitate fatty acid are all even numbered carbons.
Palmitate synthesis involves a series of condensation reactions where malonyl-CoA units are added to a growing fatty acid chain. In each condensation step, the malonyl group is incorporated into the fatty acid chain, while the CoA moiety is released.
The acetyl-CoA that serves as a precursor for palmitate synthesis comes from the breakdown of glucose or other energy sources. When 14C-labeled CO2 is used in the conversion of acetyl-CoA to malonyl-CoA, the radiolabel is incorporated into the carbon skeleton of the malonyl group.
Since malonyl-CoA is used iteratively to extend the fatty acid chain, the radiolabeled carbon from the malonyl group will be present in each subsequent addition of a malonyl group. As a result, all even-numbered carbons in the resulting palmitate fatty acid would be radiolabeled. Therefore, the correct answer is option a.
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When you crack the back of a minion and then shake, they will glow like a glow stick. Kevin was wondering if temperature has any effect on how brightly they can glow. To test this, he will place one glowing minion in a walk-in refrigerator, one in the living room, and one in a sauna. He will then observe the brightness of each glowing minion. What is the independent or manipulated variable?
A. temp
B. brightness
C. shaking time
D. cracking the back of the minion
Answers
What is the role of oysters as a sustainable food source?
A: Oysters filter 50 gallons of ocean water a day
B: Zero inputs are needed to grow oyster populations.
C: Oysters reducing ocean acidity by removing nitrogen.
D: Shellfish sequester more carbon than land-based plants.
Answers
Answer:
The answer is B: Zero inputs are needed to grow oyster populations.
Explanation:
I took the test and got it correct
The oceans, lakes and rivers that cover 75% of Earth's surface are called the
A
lithosphere.
B
troposphere.
с
mesosphere.
D
hydrosphere.
Answers
How does exercise affect a person's body and homeostasis?
Answers
Answer:
In explanation.
Explanation:
-Exercise effects on the person's body and homeostasis.
Exercise stimulates the sympathetic nervous system and will induce an integrated response from the body; This response works to maintain an appropriate level of homeostasis for the increased demand in physical, metabolic, respiratory, and cardiovascular efforts.
-The Effect of Exercise on Homeostasis
1. Increased Oxygen Consumption.
2. Increased Oxygen Delivery.
3. Increased Body Temperature.
4. Increased Release of Carbon Dioxide.
5. And more.
-More information in this link (if you are looking for homeostasis effects): https://www.livestrong.com/article/369714-how-does-the-body-maintain-homeostasis-in-response-to-exercise/
-More information in this link: https://www.ncbi.nlm.nih.gov/books/NBK482280/
As the body shifts to partial dependence on ketones for energy during prolonged fasting:
A) the body increases its energy output.
B) the body conserves its lean tissue.
C) the body increases its metabolism.
D) the body's loss of lean tissue increases.
E) the body's fat stores increase.
Answers
As the body shifts to partial dependence on ketones for energy during prolonged fasting: the body increases its energy output.
Correct option is A.
During prolonged fasting, the body shifts to partial dependence on ketones for energy, leading to a range of metabolic changes. The body conserves its lean tissue, as ketone production can generate energy without the need to break down lean tissue. In the long-term, the body’s loss of lean tissue can increase, as much of the energy generation through ketones comes from breaking down fat and fatty acids.
During prolonged fasting, as normalized by fat-based ketone production, the body’s fat stores generally increase as the body shifts its energy requirements from food to fat. Therefore, the metabolic changes associated with a shift to partial dependence on ketones for energy during prolonged fasting lead to a decreased energy output, an increased metabolism rate, an increased loss of lean tissue, and an overall increase in fat stores.
Correct option is A.
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Juan has collected a cricket. Which question can a dichotomous key help him
answer?
A. Are crickets attracted to porch lights?
B. Which species of cricket is this?
O C. Which species of cricket is the most popular?
O D. How many times do crickets chirp per minute?
Answers
The question that can be answered by a dichotomous key is the question; Which species of cricket is this?
What is a dichotomous key ?The term term dichotomous key has to do with the identification of a species based on its characteristics.
The question that can be answered by a dichotomous key is the question; Which species of cricket is this?
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Multicellular plants and unicellular algae have one important feature in common. What is it? A) They contain chlorophyll. B) They reproduce by cell division. C) All are made of one or more cells. D) The cells of each contain exactly the same parts.
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Natural selection explains how _________________ change as their environments change.
Answers
Individuals/living organisms
However to be specific as in Charles Darwin’s theory he mentioned finches and later this was observed in moths as well as mice
how does one type of rock is transformed to another type of rock?
Answers
Answer:
This can happen through the rock cycle. But there are 3 processes which are crystalization, erosion and sedimentation, and metamorphism.
Explanation:
There are several types of rocks, but only one large furnace in which parts of a single large rock are cooked and changed into the various types of rocks. Our planet is a massive rock and a massive furnace. All rocks are divided into three categories, or classes. They're classified as sedimentary, metamorphic, or igneous, with variances in how they're generated.
I'll show you a schematic of the Rock Cycle instead of a detailed answer. It shows how one type of rock may be converted (metamorphic) into another under certain conditions. Just bear in mind that some types of rocks, such as sedimentary rocks, may form in a matter of hours, while others, such as metamorphic rocks, take millions of years to create.
Protozoans are organisms that can reproduce asexually. Asexual reproduction can help species of protozoans survive because:
A. they do not use a lot of energy finding mates.
B. their populations have less genetic diversity.
C. their populations do not grow too quickly.
D. they use more cellular energy in reproduction.
Answers
Answer: option A is correct
Explanation:
they don't have to spend time and energy finding a mate so they can just keep reproducing
Question 1 (1 point)
Read the following description:
These organisms are large predators. They have been known to eat other carnivores and herbivores. Although these organisms are very successful, their population has been greatly threatened by humans.
Which of the following best fits the description of these organisms?
Question 1 options:
level one: photoautotrophs
level two: herbivores
level three: carnivores
level four: top predators
Answers
Large predators that feed on other carnivores and herbivores but are threatened by humans are best described as top predators.
An organism that feeds on another organism is known as a predator. The organism it feeds on is known as the prey.
In a typical ecosystem, top predators are organisms that exist at the top of the ecosystem's food chain without themselves being prey to any natural predator. Thus, such organisms have the capability to interact with humans in different ways, including being hunted down as food or pets.
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What are some 5 examples of thallium?
Answers
Answer:
It exists in trace concentrations in the earth's crust. It is imported for use in electronics, low temperature thermometers, optical lenses, and counterfeit costly jewels. It is also used in some chemical reactions and medical operations.
Explanation:
Small cut pieces of soft stems are placed in growth medium with following plant hormones. Which combination of plant hormones will show slowest growth?
A) Auxim+Cytokinin
B)Gibberellins+Auxin
C) Gibberellins+Cytokinin
D)Abscisic Acid +Auxin
Answers
Option D: Abscisic Acid + Auxin is the combination of plant hormones will show slowest growth because abscisic acid is a growth inhibiting hormone.
Auxin, gibberellin, and cytokinin are growth-promoting hormones, but abscisic acid inhibits growth. While all of the growth-promoting hormones are present in options A, B, and C, both growth-promoting and growth-inhibiting hormones are present in option D. As a result, this hormonal mix will result in the slowest growth. Hence, choice D is the right response.
Auxins, cytokinins, gibberellins, ethylene, and abscisic acid are the five main categories of plant hormones, and they are distinguishable from one another by their chemical compositions and the reactions they cause in plants. Any cell must be able to recognize the molecule in order to react to a hormone. A cell's ability to detect a hormone depends on its physiology at the time the hormone is present.
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hair cells in the vertebrate ear are responsible for transducing sound pressure waves. what would cause ion channels in the hair cell membrane to open? (when would ion channels open?)
Answers
In vertebrate ear, "hair-cells" are responsible for converting mechanical sound waves into electrical signals which can be interpreted by the brain and this process, involves the opening and closing of ion channels in the hair cell membrane.
When "sound-waves" enter into ear, it causes hair cells to vibrate. These mechanical vibrations cause the stereocilia, which are small hair-like structures on the surface of the hair cell, to bend. When the stereocilia bend, this can trigger the opening of ion channels in the hair cell-membrane.
The bending of stereocilia towards the tallest stereocilium leads to the opening of mechanically gated ion channels called transduction channels.
These channels are located at the tips of the stereocilia and are connected to each other by thin, elastic filaments called tip links. When the stereocilia bend towards the tallest stereocilium, the tension on the tip links increases and causes the transduction channels to open, which allows the positively charged ions to flow into the hair-cell.
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