Answer:
A scientific view.
Explanation:
A scientific model is a physical and/or mathematical and/or conceptual representation of a system of ideas, events or processes.
Which statement best explains why fossil fuels are unevenly distributed throughout Earth?
A It took a specific environment and the correct organisms for them to form.
B Earthquakes have shaken them into new locations.
C When Pangea split up the fossil fuels only went to certain locations.
D The fossil fuels were scattered, millions of years ago, when an asteroid hit Earth.
The fossil fuels were scattered, millions of years ago, when an asteroid hit Earth.
Thus, The components of fossil fuels are decaying plants and animals. These fuels may be burned to provide energy and can be found in the crust of the Earth.
An example of a fossil fuel is coal, as well as oil and natural gas. Coal is a substance that is typically found in sedimentary rock formations, which are collections of rock, dead plant and animal materials, and layers of silt.
A chunk of coal must contain more than 50% fossilized plant material. Shale is one sedimentary rock type that contains oil in its native form.
Thus, The fossil fuels were scattered, millions of years ago, when an asteroid hit Earth.
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What type of pollination creates hybrids?
Answer:
Cross-pollination
Explanation:
Active transport move particles in and out of the cell_____
Answer:
against the concentration gradient
Explanation:
give 5 characteristics of the soups include two appropriate garnish for each
Answer:
is there supposed to be a image attached?
Explanation:
what soups are they talking about
Cool air can hold less water vapor than warm air. Apply this fact to explain why clouds and precipitation form on the windward side of the mountain.
Answer:
Clouds and precipitation form on the windward side of the mountain due to change in temperature and pressure.
What is the relation between pressure and temperature?
Temperature of any substance is directly proportional to the pressure of that substance.
If the temperature of the wind increases so that winds get warmer and at the same time pressure of gas also increases, due to which particles will go far from each other. After this warm air rises up and cools down will condenses to form clouds, after this precipitate will falls on the windward side of the mountain.
Hence due to temperature and pressure precipitate will form on the windward side of the mountain.
Explanation:
How does the food move in my body ?
Answer:
Food moves through your GI tract by a process called peristalsis. The large, hollow organs of your GI tract contain a layer of muscle that enables their walls to move. The movement pushes food and liquid through your GI tract and mixes the contents within each organ.mark me brainlist if it is helpful to you
When you eat, food enters your alimentary canal. The alimentary canal is a series of organs that form a pathway from your mouth to your anus.
As food moves down this pathway, it's processed and changed to waste. After food is modified to waste, it's pushed out of your body in a bowel movement.
The stomach breaks down food into a liquid mixture. The small intestine absorbs nutrients from the liquid mixture. What remains is a liquid waste. The large intestine (colon) absorbs water from the liquid waste, converting it into solid waste (stool).
Nerves throughout your alimentary canal tell your muscles how fast to contract. Muscles within the intestines contract to move food and waste through the digestive tract. The rectum stores stool until a movement occurs. The anus is the opening where stool leaves the body.
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Why women died of the giving birth?
Answer:
probably because of high blood preasure and heavy bleeding
Answer:
Women sometimes pass while giving birth because of immense bleeding, sepsis, eclampsia, or unsafe abortions
Select the correct answer.
A group of environmental activists in West Virginia wants to save a large forest. Which act will help them in this activity?
A.
Nature Conservancy
B.
Toxic Substances Control Act
C.
Eastern Wilderness Areas Act
D.
Endangered Species Act
A group of environmental activists in West Virginia wants to save a large forest , the act that help them in activity is Eastern Wilderness Areas Act.
Option C is correct.
The Act established 16 brand-new wilderness areas in the Eastern United States, including 207,000 acres (84,000 ha) of wilderness on 13 states' national lands. Despite the fact that it was initially untitled, the bill endorsed by Portage has come to be known as the Eastern Wild Regions Act.
Environmental activism :Environmental activists develop strategies to raise awareness or produce solutions that directly address the problem after determining issues that threaten the planet's viability—from local to global issues. The actions of individuals or groups that help or protect the environment are what are meant to be referred to as "environmental activism." The movement's participants identify issues that threaten the planet's survival, from local to global issues, and then devise strategies to raise awareness or come up with solutions that directly address the issue.
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How is a high mass star formed
Answer:
From Red Giant to Supernova: The Evolutionary Path ofHigh Mass Stars. Oncestars that are 5 times or moremassive than our Sun reach the red giant phase, their core temperature increases as carbon atoms are formed from the fusion of helium atoms. ... When the core contains essentially just iron, fusion in the core ceases.
Answer:
Educators' Corner
Background: Life Cycles of Stars
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The Life Cycles of Stars: How Supernovae Are Formed
It is very poetic to say that we are made from the dust of the stars. Amazingly, it's also true! Much of our bodies, and our planet, are made of elements that were created in the explosions of massive stars. Let's examine exactly how this can be.
Life Cycles of Stars
A star's life cycle is determined by its mass. The larger its mass, the shorter its life cycle. A star's mass is determined by the amount of matter that is available in its nebula, the giant cloud of gas and dust from which it was born. Over time, the hydrogen gas in the nebula is pulled together by gravity and it begins to spin. As the gas spins faster, it heats up and becomes as a protostar. Eventually the temperature reaches 15,000,000 degrees and nuclear fusion occurs in the cloud's core. The cloud begins to glow brightly, contracts a little, and becomes stable. It is now a main sequence star and will remain in this stage, shining for millions to billions of years to come. This is the stage our Sun is at right now.
As the main sequence star glows, hydrogen in its core is converted into helium by nuclear fusion. When the hydrogen supply in the core begins to run out, and the star is no longer generating heat by nuclear fusion, the core becomes unstable and contracts. The outer shell of the star, which is still mostly hydrogen, starts to expand. As it expands, it cools and glows red. The star has now reached the red giant phase. It is red because it is cooler than it was in the main sequence star stage and it is a giant because the outer shell has expanded outward. In the core of the red giant, helium fuses into carbon. All stars evolve the same way up to the red giant phase. The amount of mass a star has determines which of the following life cycle paths it will take from there.
diagram of the life cycles of low and high-mass stars
The life cycle of a low mass star (left oval) and a high mass star (right oval).
The illustration above compares the different evolutionary paths low-mass stars (like our Sun) and high-mass stars take after the red giant phase. For low-mass stars (left hand side), after the helium has fused into carbon, the core collapses again. As the core collapses, the outer layers of the star are expelled. A planetary nebula is formed by the outer layers. The core remains as a white dwarf and eventually cools to become a black dwarf.
On the right of the illustration is the life cycle of a massive star (10 times or more the size of our Sun). Like low-mass stars, high-mass stars are born in nebulae and evolve and live in the Main Sequence. However, their life cycles start to differ after the red giant phase. A massive star will undergo a supernova explosion. If the remnant of the explosion is 1.4 to about 3 times as massive as our Sun, it will become a neutron star. The core of a massive star that has more than roughly 3 times the mass of our Sun after the explosion will do something quite different. The force of gravity overcomes the nuclear forces which keep protons and neutrons from combining. The core is thus swallowed by its own gravity. It has now become a black hole which readily attracts any matter and energy that comes near it. What happens between the red giant phase and the supernova explosion is described below.
Which correctly lists three characteristics that are used to describe air? altitude, density, radiation O density, radiation, mass Omass, pressure, density Opressure, altitude, radiation
Answer:
The Correct Answer Is C
Explanation:
All Three Aspects are related to Air.
Air has mass, applies pressure, and takes up space. Therefore, option (C) describes the characteristics of air.
What is air?Air has particular qualities or features and is a mixture of gases, water vapor, and other elements. Gases make up air, which has mass, pressure, and weight as well as the ability to be compressed and be affected by temperature.
Nearly all of the air is made up of the molecules of two separate elements, nitrogen and oxygen. Carbon dioxide and argon, in trace levels, make up the remainder. (Trace amounts of other gases, including neon, helium, and methane, are also present.)
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George Box, a famous statistician, once said, "All models are wrong, but some are useful.” What did George Box mean by this statement?
Answer:
The 2nd part, "But some are useful" - simplifications of reality can be quite useful. They can help us explain, predict and understand the universe and all its various components. The idea of this quote is that every single model will be wrong, meaning that it will never represent the exact real behaviour.
George Box, a famous statistician, once said: "All models are wrong, but some are useful" he made an aphorism stating that mathematical models are flawed.
What is an aphorism?Maxim or sentence that, in a few words, explains a rule or principle of moral significance; apothegma, saying. “Short and succinct text, foundation of a fragmentary and unsystematic style in philosophical writing.
With this information, we can conclude that George Box, a famous statistician, once said: "All models are wrong, but some are useful" he made an aphorism stating that mathematical models are flawed.
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Summarize the function of checkpoints in the cell cycle
Answer:
Checkpoints stop the cell cycle when errors are detected.
Explanation:
After leaving the epididymis, sperm cells pass through the _________ on the way to the _________.
A. Seminiferous tubules, urethra
B. Urethra, seminiferous tubules
C. Vas deferens, urethra
D. Vas deferens, seminiferous tubules
Answer:
C, Vas deferens, urethra.
Explanation:
After leaving the epididymis, sperm cells pass through the vas deferens on the way to the urethra.
Which relationship is the arrow pointing to in the
cladogram?
A. the common ancestor for X and Z
B. the common ancestor for X and Y
C. the common ancestor for X, Y, and Z
D. the common ancestor for Y and Z
The answer is B on edge 2020
That isB the common ancestor for X and Y since that's where the branching of the two species occurs
Answer:
b its right
Explanation:
what are
two positive and two negative effects of land use by humans.
Answer: Positive:
1. Keep humans alive
2. Adequate food
Negative:
1. pollution
2. over population
Explanation:
Current Event on Biology Discussion
Find a news article with a publication date not older than 2018 about biology. List the website that vou found it on. List the author. List the publication date. Tell who was affected by the research and why do you think the research was important. Where was the research conducted. Summarize the article. Does the article remind you of anything? If it does what? Was there anything in the article that you wanted to know more about? If so what? If not why?
As a result of human activities, what has happened to the other species' populations?
A) Human activities have had no impact on other species' populations
B) 99% have grown
C) 66% are declining
D) 100% have seen a decrease
As a result of human activities, in the other species' populations:
C) 66% are declining
There is no denying that human activity has interfered with the planet's normal cycle of life. Human civilization has progressed over time but at an unmatched, alarming rate of environmental destruction. According to a new analysis, human activity is causing wildlife numbers to decline at an alarming rate.What is the Impact of the growing human population?With an expanding global population, our environment is under tremendous stress. From a very commonsense perspective, the size of the planet we live on is fixed, and the Earth is not becoming bigger. Although a substantial portion of Earth remains uninhabited and "unused," there is a reason for it: the surroundings do not fulfill (human) requirements.The sulfur dioxide that enters the atmosphere before raining back down on Earth is what gives acid rains their name.Desertification is a larger-scale form of deforestation. Some portions of Earth become deserts as a result of unchecked human resource consumption.To learn more about the Impacts of the human population, refer to:
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O blood is recessive to AB blood. What possible blood types could result from parents with O and AB Blood?
Answer:
Parents having blood type AB and O can produce offsprings having blood group A or Bbut not O
Explanation:
The possible blood type that could result in the offspring is it can be either A or b but not O as O is recessive.
What is blood?Blood is defined as a fluid that distributes oxygen and nutrients to cells while also removing carbon dioxide and other waste materials.
There are three types of blood cells.
RBC - RBC stands for red blood cells. They are defined as a kind of blood cell present in the blood that is produced in the bone marrow. WBC - WBC is also called white blood cells. They are defined as a kind of blood cell present in the blood and lymph tissue that is produced in the bone marrow.Platelets - Platelets are defined as the cells that circulate in our blood and link together when they detect damaged blood arteries.Thus, the possible blood type that could result in the offspring is it can be either A or b but not O as O is recessive.
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Susanna is a 4-year-old child. Which of the following would most likely be observed in Susanna?
A. Susanna's toddler potbelly would continue to grow.
B. Susanna would experience height and weight loss as she becomes more slender.
C. Susanna's cartilage would turn to bone at a faster rate.
D. Susanna would stop experiencing night terrors.
Answer:
A. Susanna's toddler potbelly would continue to grow.
The one that would likely to be observed in Susanna is that the cartilage would turn to bone at a faster rate. The correct option is C.
What is cartilage?Cartilage is a tough, pliable connective tissue that surrounds and protects your joints and bones.
It acts as a shock absorber all over your body. When you move your joints, cartilage at the ends of your bones reduces friction and keeps them from rubbing together.
Cartilage serves many purposes, including the ability to resist compressive forces, improve bone resilience, and provide support on bony areas that require flexibility.
The chondrocyte, which lives within the lacunae, is the primary cell that produces cartilage.
All of the cartilage is eventually replaced by bone. As a result, the cartilage tissue serves as a template for the bone that follows.
The skeletal components of the vertebral column, pelvis, and limbs are formed of cartilage first, then bone.
Thus, the correct option is C.
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If all the grass disappeared from this community, which change would be
most likely to occur?
squirrel
coyote cougar
mouse deer
XIA
acorns
grass
mushrooms
OA. The squirrel population would decrease.
OB. The coyote population would increase.
OC. The cougar population would stay the same.
OD. The deer population would decrease.
Answer:
If all the grass disappeared from a community, the most likely change to occur would be that the deer population would decrease. This is represented by option D. Deer are herbivores and rely on grass and other vegetation as a primary food source. Without grass, the deer would have less food available, which could lead to a decrease in their population. This could also have a cascading effect on other species in the community, such as predators that rely on deer as a food source.
Explanation:
2. Which stage of interphase do we see DNA being replicated?
A. Growth 1 (G1)
B. Growth 2 (G2)
C. Synthesis (5)
D. All of the above None of the above F. A and B only
Answer:
C
Explanation:
Synthesis is when DNA is being replicated.
Additional information:
Growth 1: Just a growth stageGrowth 2: Known as a checkpoint stage where the cell gets ready for mitosis.The fruits have several purposes. Which purposes might be similar to those of a cone?
Answer:
Flowers and cones have different structures. Cones when mature have a woody texture and is made up of scales while flowers have colorful petals, sepals and both male and female reproductive portions are called stamens and pistils.
Explanation:
Answer:
the other side of a cone
Explanation:
When jaw become large enough to hold the permanent teeth . The milk teeth fall and permanent teeth appear
The "exfoliation" or "shedding" of milk teeth is the name of the procedure.
What is the Dentition of Humans?The primary and permanent tooth sets make up the human dentition. Maxillary (upper) and Mandibular (lower) are the two opposing arches in which teeth are arranged. These can be split into their left and right halves along the midline (mid-sagittal plane).
Four Different Teeth Types and Their Purposes
The majority of individuals have 32 permanent adult teeth, which can be classified into four groups:
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Describe digestion in the small intestine and large intestine
What are villi and microvilli? What are their funcrions
Answer:
Villi and microvilli are both membranous structures that help facilitate the exchange of materials out and in the cell.
Explanation:
Since they are threadlike projections it increases the surface area while decreasing the volume (that's really good for any cell!). So they both indeed make the exchange of fluids and other materials easier.
What is included in growth rate factors
Answer:
Population growth is based on four fundamental factors: birth rate, death rate, immigration, and emigration.
Explanation:
GG.
Which of the following is a way humans use trees?
a.paper
b. food
c.wood
d. all of the above
Answer:
The answer is D: All the above
Explanation:
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11. What is the primary cause of eutrophication in aquatic ecosystems (2 points)
O nutrient-rich runoff
O increased biodiversity
high oxgyen levels
loss of algae in that food web
Submit answer Skip for now
End qu
the primary cause of eutrophication is the input of nutrient-rich runoff into aquatic ecosystems, which fuels the excessive growth of algae and ultimately leads to oxygen depletion and other negative impacts on the ecosystem which is the first option.
Eutrophication is primarily caused by the influx of nutrient-rich runoff into aquatic ecosystems. This occurs when excessive amounts of nutrients, such as nitrogen and phosphorus, enter the water. The main sources of these nutrients are often human activities, including agriculture, urban development, and wastewater treatment. When these nutrients enter the water, they act as fertilizers, fueling the growth of algae and other aquatic plants.
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19. A student wants to test the effect of temperature on relative enzyme activity. The table below shows data from this experiment.What are the independent and dependent variables in this experiment?independent--temperature;dependent--relative enzyme activityindependent--relative enzyme activity;dependent--number of minutesindependent--number of minutes;dependent--relative enzyme activityindependent--relative enzyme activity;dependent--temperature
The variables can be independent (cause) that causes an effect on the dependent variables of the experiment, or it can be a dependent variable that is the effect caused by some action made in the study. Therefore, in the test that the student show in the table, the independent variable is the temperature, while the relative enzyme activity is a dependent variable to the temperature changes in the experiment.
Dynamic cell seeding allows higher cell seeding efficacy to engineered 3D scaffolds therefore it is mostly preffered by the scientists. Fibroblasts tend to attach on the silicone tube wall but this stiuation is not appropriate for reching maximum cell seeding efficacy on a scaffold. Preventing cells for not to attach on silicone tube, applied force on a single fibroblast should exceed 6500 picoNewton (required minimum force). In the designed cell culture dynamic fibroblast seeding experiment, silicone tube inner diameter is 3.8 mm and fibroblasts surface area is 450 μm2. Please calculate the minimum flow rate as liter per minute of the fibroblasts included cell culture media through silicone tube to prevent fibroblasts adhesion on silicone tubes.
The minimum flow rate as liter per minute of the fibroblasts included cell culture media through silicone tube to prevent fibroblasts adhesion on silicone tubes is 769.210527 L/min.
What is the minimum flow rate about?To calculate the minimum flow rate of the fibroblasts-included cell culture media through the silicone tube, we have to use the following equation:
Flow rate (L/min) = (Force (pN) * Surface area (μm^2)) / (Viscosity * Inner diameter (mm))
In this case, the force applied on a single fibroblast should exceed 6500 picoNewtons, the surface area of the fibroblasts is 450 μm2, the viscosity of the cell culture media is typically around 0.5-1.5, and the inner diameter of the silicone tube is 3.8 mm. Plugging these values into the equation gives us:
Flow rate (L/min) = (6500 pN * 450 μm^2) / (1.0 * 3.8 mm)
= (2925000 pNμm^2) / (1.0 Pas * 3.8 mm)
= 769210.527 pNμm^2 / (Pas * mm)
= 769.210527 L/min
So the minimum flow rate of the fibroblasts-included cell culture media through the silicone tube to prevent fibroblast adhesion would be around 769.210527 L/min.
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How is editing the genetic code?; Is genetic modification artificial selection?; How is artificial selection different from genetic engineering ?; How does genetic engineering differ from selective breeding?
Humans can change a species' members through genetic engineering and artificial selection to make them better suited to human needs.
However, the method for change is different. Artificial selection selects for existing qualities in a species, whereas genetic engineering develops new traits.
Scientists use artificial selection to breed only individuals with desirable features. For example, for many generations, scientists may breed (cross pollinate) only the highest yielding crops with one another.
The outcome is a population of plants that all generate a larger yield (e.g., copious fruit output) than other members of the species. Scientists can modify the qualities of a population through selective breeding. Evolution has taken place.
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