Answer: avalanche, earthquake, flood, forest fire, hurricane, lightning, tornado, tsunami and volcanic eruption.
Explanation: Here extra catastrophic events
Answer:
Hurricane Katrina , the indian ocean tsunami,
Pangaea , and a volcanic eruption
Define what terms origin, insertion and tendon
Answer:
Origin: In biology, origin can be described as the location where the muscle joins a stationary bone and as a result, no movement occurs.
Insertion: In anatomy, insertion can be described as the point of attachment which allows movement of a bone to occur. It moves when the muscles contract.
Tendon: In biology, the tendon can be described as a type of connective tissue which attaches a bone to a muscle.
01:50:43
An individual is severely bumed in a fire. Which of these procedures would help doctors make replacement skin tissue for the
patient?
using reproductive cloning to produce a new layer of skin
manipulating adult stem cells to grow new skin tissue
creating skin tissue by combining cells from different cell lines
growing a layer of skin cells on a matrix that provides structure
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Answer:
C: creating skin tissue by combining cells from different cell lines
Explanation:
I hope this helps! :)
Answer:
The answer is C
Explanation:
What are the genotypes and phenotypic ratios is a black individual is crossed with a blush gray individual
Answer:
Let us consider the genes for black individual to be BB.
Let us consider the genes for bluish gray individuals to be BW.
The cross will be:
B W
B BB BW
B BB BW
The results show that there is a 50% probability that the offsprings produced will have black colour. There is also a 50% chance that the offsprings produced will have bluish graycolour.
The genotypic ratio for black individual : bluish gray individual will be 2:2.
The phenotypic ratio for black individual : bluish gray individual will be 2:2.
The genotypic ratio of the offspring is 1:2:1 (BB:Bb:bb), and the phenotypic ratio is also 1:2:1 (black:black:blush gray).
To determine the genotypes and phenotypic ratios of the offspring when a black individual is crossed with a blush gray individual, we need to know the genetic basis of the fur coloUrs and the mode of inheritance.
Let's assume that black fur (B) is dominant over blush gray fur (b). In this case, the genotypes and phenotypic ratios can be predicted using Punnett squares.
The genotypes of the parents are:
- Black individual: BB
- Blush gray individual: bb
Using a Punnett square, we can cross these genotypes to determine the possible genotypes and phenotypic ratios of the offspring:
B b
B | BB Bb
b | Bb bb
From the Punnett square:
- 25% of the offspring will be homozygous dominant (BB), with black fur.
- 50% of the offspring will be heterozygous (Bb), also with black fur.
- 25% of the offspring will be homozygous recessive (bb), with blush gray fur.
So, the genotypic ratio of the offspring is 1:2:1 (BB:Bb:bb), and the phenotypic ratio is also 1:2:1 (black:black:blush gray).
To prevent the pollution of groundwater, waste water collected from landfills should be A. diluted by mixing it with drinking water. B. filtered by soil and plants. C. piped to nearby lakes and streams. D. treated before it is released.
Answer:
D.
Explanation:
Answer:
D
Explanation:
what happens to pyruvic acid in the krebs cycle
Answer:
During kerbs cycle pyruvate is converted to Acetyl CoA .The so formed Acetyl CoA then enters the krebs cycle.
Explanation:
Pyruvate is the end product of glycolysis.Pyruvate is converted into Acetyl CoA by the catalytic activity of pyruvate dehydrogenase enzyme which uses NAD+ as a coenzyme.
The formation of pyruvate to Acetyl CoA is termed as oxidative decarboxylation.
In the Krebs cycle, pyruvic acid is converted into acetyl CoA, a two-carbon molecule. This acetyl CoA then undergoes a series of reactions in the cycle, producing high-energy molecules such as NADH, FADH2, and ATP.
Explanation:In the Krebs cycle, pyruvic acid is converted into acetyl CoA, a two-carbon molecule. This acetyl CoA then undergoes a series of reactions in the cycle, producing high-energy molecules such as NADH, FADH2, and ATP.
Acetyl CoA enters the cycle by combining with a four-carbon compound called oxaloacetate, resulting in the formation of a six-carbon compound called citric acid. The carbons from pyruvic acid are gradually released as carbon dioxide during the cycle.
In one turn through the cycle, one molecule of ATP is produced, along with three molecules of NADH and one molecule of FADH2.
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The Human Genome Project is devoted to mapping the general DNA sequence of our species. This could lead to the development of new medicines, as well as the possibility of using gene therapy to treat certain diseases. However, there are some ethical issues surrounding the mapping of individual genomes. One concern is A) that your genes may change over time, making the project useless. B) that insurance companies could discriminate based on genetic make-up. C) that since this has never been done before, we should probably not do it now. Reactivate D) that sequencing our individual genomes is so expensive, it is a counter-productive strategy.
Answer:
D) that sequencing our individual genomes is so expensive, it is a counter-productive strategy.
Explanation:
Gene therapy is a technique for correcting defective genes genes by the insertion, alteration or removal of genes within an individual's cells and biological tissues to treat disease.Although gene therapy is considered as a potential method of treating several diseases but till now a little progress has been seen in this field.Several controversial points include, short lived nature of gene therapy, immune response , problems arising due to viral vectors and possible multigene disorder.There arefew ethical considerations that are to be kept in mind while using gene therapy like deciding what is disability and what is disorder, does searching for a cure demean the lives of individual, the preliminary attempts of gene therapy is very costly etc.Answer:
the answer is B
Explanation:
What is the Thin layer around the earth in witch all living organisms exist
Answer:the atmoshere
Explanation:
The thin layer around the Earth in which all living organisms exist is known as the biosphere. It encompasses all the Earth's ecosystems and includes the interaction between living organisms and their physical environment.
The biosphere, which is made up of all the ecosystems on the globe, is the area where life is found. It encompasses the atmosphere, the land, and the aquatic bodies, and reaches from the lowest ocean depths to the highest mountains. From microscopic microbes to large animals, a variety of life forms are supported by this dynamic and linked layer.
The biosphere is critical for supporting life because it controls diverse ecological processes and offers vital resources including air, water, nutrients, and energy to living things. Human activities have a significant impact on the biosphere, raising concerns about climate change, habitat degradation, and biodiversity loss. The ongoing survival and wellbeing of all Earth's inhabitants depend on the biosphere's delicate balance remaining in tact.
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13. Direct source of energy for cell processes
Answer:
Adenosine triphosphate.
Explanation:
Adenosine triphosphate (ATP) is the direct source of energy for cell processes. It is produced in the mitochondria from the breakdown of glucose.
Explanation:The direct source of energy for cellular processes is adenosine triphosphate (ATP). ATP is often referred to as the 'energy currency' of cells. It is an organic compound that provides energy to drive many processes in living cells, such as muscle contraction, nerve impulse propagation, and chemical synthesis. ATP is produced from the breakdown of glucose during cellular respiration, a process that occurs in the mitochondria of the cell.
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1. Elephant seals from Antarctica dive into the ocean more than 1,500 meters deep at a time—nearly a mile. A seal can stay underwater for an hour or longer. To do that, the seal stores oxygen in its blood cells that is slowly released as it dives. The seal does not expend any extra energy releasing the oxygen stored in its blood cells. Do you think passive or active transport is at work in the blood cells of the elephant seal? Explain your answer.
Explanation:
Passive transport is at work- the release of oxygen is a passive process, not requiring energy.
Active transport is a mediated process that requires an energy input and the use of specialized membrane proteins to move against the concentration gradient. These proteins require energy in the form of adenosine triphosphate or ATP in order to facilitate necessary conformational changes to the large protein molecules to alter the spatial location of the molecule. For instance, with Na+, K+ pumps in cell membranes.
However, via passive transport or diffusion, small molecules can move from regions of high concentration to regions of low concentration until an equilibrium is reached. This occurs along the concentration gradient, and usually involves small non polar molecules in cells such as oxygen and carbon dioxide.
The passive process is more efficient, as ATP production for active transport requires oxygen; the O2 stores in the blood cells would be depleted quickly. This limits the depth at which the seals can dive, due to their need to resurface to replenish O2 stores.
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Which of the following elements is a trace element?
Which of the following is not a carcinogen
i think i have gotten this one
The correct answer is D. DNA.
DNA is an example of a substance which isn't a carcinogen.
What is a Carcinogen?These are substances which exposes someone to the risk of cancer. When the body is exposed to these compounds, mutations occur such as uncontrolled cell growth.
This forms tumors which are characteristics of cancerous cells. DNA however isn't an example of a carcinogen.
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explain the similarities and differences in the development of european culture and middle eastern culture
Answer:
There are many similarities and differences between the two cultures.
Explanation:
Similarities are as follows: -
Anti-regime movements in both Eastern Europe and Middle East brought many political and military changes. Regional concentration is good in both type of cultures which is evident even on the map.Differences are as follows: -
Eastern Europe states were not autonomous. There was stability in the region, Middle east has mix culture, on the other hand, with different levels of autonomy. In Eastern Europe, there were many protesters or revolutionists who were though in small number were popular and had great influences over people. But, even large number of opposition leaders in Middle east, they were not that effective.in the diagram the top square and circle represents the generation
Answer:
D
Explanation:
The top square and circle represent the decreased male and decreased female generation in a given diagram.
What are the causes of decreased men proportion within a generation?A square or rectangle represents a male gender, while a circle represents a female gender. The term decreased indicates a reduction in the population of males and females. In the given, diagram, the top square and circle represents the decreased male and decreased female generation.
Various factors are responsible for decreased male and decreased female generation in a given generation which include changes in birth rates, death rates, and migration patterns can all affect the number and proportion of males and females in a given population.
Exposure to environmental pollutants or toxins also have a negative impact on the reproductive health of both males and females resulting in lower birth rates. Economic factors such as poverty, lack of healthcare, illiteracy are some other factors. Smoking, alcohol consumption, and poor nutrition also effect the fertility and reproduction.
Therefore, the top square and circle represent the decreased male and decreased female generation in a given diagram.
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Induced pluripotent stem cells are cells from adults that have been reprogrammed to imitate embryonic stem cells. Why might
induced pluripotent stem cells be a valuaale tool in science and medicine?
O A. Induced pluripotent stem cells can become any cell type in the body, but are from adults, avoiding the controversies associated with
embryonic stem cells
O B. Induced pluripotent stem cells are the only type of stem cell that's truly pluripotent.
O C. Induced pluripotent stem cells may become any cell type in the body, but are fraught with ethical questions over their use.
O D. Induced pluripotent stem cells are derived from adult cells and therefore may have DNA abnormalities, allowing scientists to understand the
effects of sun exposure or toxins on dna
Induced pluripotent stem cells (iPSCs) are indeed a valuable tool in science and medicine for several reasons. Option A correctly highlights one of the significant advantages of iPSCs.
The correct option is A.
They can be generated from adult cells, such as skin cells, through a process of reprogramming. This avoids the ethical controversies associated with using embryonic stem cells, as no embryos are destroyed in the process.
iPSCs share similar properties with embryonic stem cells, including their ability to differentiate into various cell types in the body, which makes them a versatile tool for regenerative medicine, disease modeling, drug development, and personalized medicine. Their potential to generate patient-specific cells for transplantation or study offers opportunities to better understand diseases and develop targeted therapies without the need for embryonic tissues.
Hence, A is the correct option
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Explain the action of enzymes in digestion and the different roles of at least two named enzymes that are produced in the pancreas.
The pancreas aids digestion by producing enzymes like amylase and lipase. Amylase breaks down carbohydrates into sugars and lipase breaks down fats into fatty acids and glycerol. These processes mainly occur in the small intestine.
Explanation:The pancreas plays a key role in digestion by producing both enzymes and bicarbonate-rich pancreatic juice. Enzymes, which are protein molecules, accelerate various biochemical reactions. In digestion, enzymes facilitate the process by breaking down complex food particles into simpler forms that the body can easily absorb.
The pancreas predominantly produces two prime enzymes, namely amylase and lipase.
Amylase is responsible for the break down of complex carbohydrates (like starch) into simple sugars. This process begins in the mouth but continues in the small intestine where pancreatic amylase is most active.
The second named enzyme, lipase, works on fats in the food. It decomposes complex fat molecules into simpler fatty acids and glycerol. This process wholly occurs in the small intestine, facilitated by bile salts that emulsify fats, making them easier for lipase to work on.
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Using the words below, complete the sentences. (Words CAN be used more than once.)
Low - energy - high - rises - equator - sinks - angle - density - high pressure - low pressure - cold
- 1. Cold air ______, has high ______, and creates areas of ______ pressure.
- 2. Warm air ______, has low density, and creates areas of ______ pressure.
- 3. Wind is the movement of air from an area of __________ to an area of ___________.
- 4. The ______ of the Earth affects the amount of __________ an area receives.
- 5. More sunlight reaches the Earth at the __________.
- 6. Tropics (near the ______) have warm air that rises, creating areas of ______ pressure.
- 7. North and South poles have ______ air that sinks, creating areas of high pressure.
Answer:
-1.Cold air sinks,has high density,and creates areas of low pressure.
-2.Warm air rises,has low density,and creates areas of high pressure.
-3.Wind is the movement of air from an area of high pressure to an area of low pressure.
-4. The angle of the earth affects the amount of energy an area receives
-5.More sunlight reaches the Earth at the equator
-6.Topics(near the equator) have warm air that rises,creating areas of high pressure.
-7.North and South poles have low air that sinks,creating areas of high pressure.
Explanation:
I just let y know that I don't now if I'm right or not
Black mice and tan mice are native species that are observed in a particular region. Human habitation in the region caused an invasive mouse species to enter the region. These mice are brown and share the same food requirements as black mice. Tan mice have different food requirements. How will this change affect the web in the region?
Answer:
Black mice will be at competition
Explanation:
Before the brown mouse came to the area, they black and tan mice did not compete with each other for food. but now the Brown and black mice compete for food the black mouse population will decrease because of this. tan mouse would have smiliar population to before. this would change the food chain because predators would have less food to eat.
100 POINTS TO ANYONE WHO ANSWER THIS
hat is a job of the muscular system?
remove waste
protect the body from germs
deliver nutrients to the body
provide movement
Answer:
provide movement
Explanation:
Nuclear power plants require a lot of water to operate.
Please select the best answer from the choices provided
T
F
Answer:
True!
Nuclean plants need to be kept at a relatively low temperature, which means that they need a lot of cooling. The most widely used cooling technique is water circulation similar to central heating system and this is why a lot of water is used.
Explanation:
Answer:
TRUE!!!
Explanation:
mention the feature of adaptation azadirachta indica
Answer:
Azadirachta indica is also known as the neem tree. It is mostly present in the Indian subcontinent hugely used for providing shade to people from the Sun.
One of the best adaptation quality of Azadirachta indica is that it is drought resistant. It can grow in any types of soil. However, it grows best in sandy soils and drained soil conditions.It has the ability to survive in very hot conditions and can survive at temperatures as low as 4 degrees Celsius.
What type of inheritance is observed in this pink and yellow flower?
Answer:
The correct answer is CODOMINANCE.
Explanation:
The transfer of genes from one generation to another is called inheritance.
The image shown above is the perfect example of codominance. when both the parents show equal dominance in the generation is called CODOMINANCE.
In this case, the mother genes (red) and the father gene( white) both show an equal effect on the offspring and both show their effect.
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Which of these describes a method in studying plate movements?
-Observing the absence of magnetic rocks in locations that do not match the poles
-Match relief elements only on the western side of the Atlantic Ocean
-Recording the spread of the seafloor in the mid-Atlantic region
-Correlate the rotation of Earth to plate movement
Answer:
C: Recording the spread of the seafloor in the mid-Atlantic region .
This describes a method in studying plate movements
Explanation:
Seafloor spreading is the ‘process’ by which oceanic crusts are formed as a result of volcanoes. Then these crusts slowly drift away from the edge/ridge. It usually occurs at mid-ocean edges.
When plates move, they collide. Because of these collisions volcanoes and earthquakes occur. Volcanoes occur when one plate sinks under another plate. This allows the lava to get inside the plates and volcano occurs after the build-up of this magma or lava. Earthquakes are caused when two plates collide and slide with each other. Thus, Option C is the correct answer as plate movements eventually cause se floor spreading.
actually science but no subject for thou
How is carbon dioxide exchanged between the biosphere and the atmosphere?
A. Plants and animals remove carbon dioxide by cellular respiration, and plants release it by photosynthesis.
B. Plants and animals release carbon dioxide by cellular respiration, and plants remove it by photosynthesis.
C. Nitrogen-fixing bacteria remove carbon dioxide from the biosphere, and denitrifying bacteria release it into the atmosphere.
D. Denitrifying bacteria remove carbon dioxide from the biosphere, and nitrogen-fixing bacteria release it into the atmosphere.
Answer:
The correct answer is B plants and animals releases carbon dioxide by cellular respiration and plants removes it by photosynthesis.
Explanation:
Cellular respiration occur in both plants and animals.Cellular respiration in case of both plants and animals consist of 3 steps glycolysis, krebs cycle and oxidative phosphorylation.
The net yield of these 3 steps are carbon dioxide,water and ATP.Carbon dioxide is generated as waste material which is released by plant and animals.
on the other hand only in case of plant Carbon dioxide is removed from the atmosphere as CO2 is utilized by plants during the course of photosynthesis.
The correct answer is B. Plants and animals release carbon dioxide by cellular respiration, and plants remove it by photosynthesis.
Carbon dioxide is exchanged between the biosphere and atmosphere through the processes of cellular respiration and photosynthesis. Animals and plants release carbon dioxide through cellular respiration, while plants absorb it during photosynthesis.
Explanation:The correct answer to the question, 'How is carbon dioxide exchanged between the biosphere and the atmosphere?' is choice B: Plants and animals release carbon dioxide by cellular respiration, and plants remove it by photosynthesis.
In other words, cellular respiration in plants and animals produces carbon dioxide as a by-product. This carbon dioxide is released into the atmosphere. Plants, on the other hand, take in carbon dioxide from the atmosphere during the process of photosynthesis. Through photosynthesis, plants convert carbon dioxide and sunlight into oxygen and glucose (a type of sugar).
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Help ASAP
Answer A:
The process of photosynthesis is occurring in image A.
Photosynthesis can be described as a process by which plants use light energy and convert water and carbon dioxide into sugar and oxygen. The sugar produced is the food for the plants. This process occurs in the leaves where chloroplasts are present. Chloroplasts trap light energy.
Answer B:
The organelle is mitochondria. The process which occurs in the mitochondria is cellular respiration.
Mitochondria are known as the power house of a cell. The process of cellular respiration occurs in the mitochondria. By this process, glucose and oxygen are converted into carbon dioxide and water. Energy in the form of ATP is released during this process. The energy is used normal cell functions.
Georgia's overall coastal habitats were rated and the results can be seen in the bar graph. The coastal habitats by in large were rated as "fair". One important indicator in the graph is the chlorophyll a category. Explain how the ratings for chlorophyll a might influence the overall ratings of coastal habitats. A) The algae that contains chlorophyll a can be detrimental to other life forms. As algae increase the total organic carbon increases. B) The more chlorophyll a present, the more algae present. This can be a result of higher nitrogen and phosphorus and may result in lowered dissolved oxygen if algal blooms develop, C) Chlorophyll, a plant pigment, is measured to indicate the amount of algae in the water. The more chlorophyll a present, the more plant growth and the healthier the aquatic environment. D) There is a direct correlation between algae present and benthic organisms. The more algae, the more benthic invertebrates. That means more abundant food for other animals in the coastal habitats.
Answer:
b
Explanation:
The more chlorophyll a present, the more algae present. This can be a result of higher nitrogen and phosphorus and may result in lowered dissolved oxygen if algal blooms develops. periodt pooh
Answer:
The answer is: B) The more chlorophyll a present, the more algae present. This can be a result of higher nitrogen and phosphorus and may result in lowered dissolved oxygen if algal blooms develop.
Explanation:
"Eutrophication" is the enrichment of surface waters with nutrients for plants, both nitrogen and phosphorus contribute to eutrophication.
A lake with total concentrations of phosphorus and chlorophyll-a of 10 and 2.5 mg / m3 respectively, can be classified into different eutrophication classes.
The symptoms and effects of eutrophication are as follows:
· Increased production and biomass of phytoplankton, associated algae and macrophytes.
· Production of toxins by certain algae.
· Deoxygenation of water, especially at the end of algal growth situations.
The answer is: B) The more chlorophyll a present, the more algae present. This can be a result of higher nitrogen and phosphorus and may result in lowered dissolved oxygen if algal blooms develop.
The fundamental sedimentairy rock unitcan be normally traced for long distances
Formation is the fundamental sedimentary rock unit can be normally traced for long distances .
Explanation:
When the energy of the transformation is not enough it is settled and deposites in the particular area for the long time. It can be formed at the earth surface by the accumulation of sediments.
The sedimentary rocks are separated by the break called bedding planes. For the formation of the sedimentary rock the sedimentary bed is the basic unit of the formation.
The sedimentation of rock can be classified as weathering erosion, transportation, deposition, lithification of the sedimentary rock unit.
Pure substances are made up of single elements or compounds. (2 points) True False
Answer:
true
Explanation:
The statement is true as pure substances consist of only one type of matter, which can be an element or a compound. Elements are made of single types of atoms, while compounds are composed of two or more types of atoms chemically bonded together.
Explanation:The statement 'Pure substances are made up of single elements or compounds' is true. A pure substance has a constant composition and properties that are constant throughout the sample. By definition, pure substances can either be elements or compounds. An element is the simplest form of matter composed of only one type of atom and cannot be broken down into any simpler substance through chemical means. For example, aluminum is an element. A compound, on the other hand, consists of two or more types of atoms chemically bonded together, such as water, which is made up of hydrogen and oxygen atoms. Therefore, pure substances maintain a uniform composition and exhibit definite physical and chemical properties.
. A pure substance is a type of matter that has a constant composition and properties that are constant throughout the sample. Elements are the simplest substances made up of only one type of atom, while compounds are substances that are made up of more than one type of atom.
A certain stem cell produces only muscle cells. What kind of stem cell is this?
O
O
A. Multipotent
B. Totipotent
C. Unipotent
O
O
D. Pluripotent
Explanation:
the kind of cell it is is unipotent cell
Answer:
The answer is C.
C. Unipotent
Explanation:
Question 7 of 10
2 Points
Relative Rate of
Enzyme Action
0
10
20 30 40
Temperature (°C)
50
60
According to the graph, what condition is best for enzyme activity?
O
A. A temperature of 20°C
O
B. A temperature above 50°C
O
C. A temperature below 30°C
D. A temnerature of 35 C
PREVIOUS
Answer:
c
Explanation:d
D. A temperature of 35°C. According to the graph, the condition that is best for enzyme activity is a temperature of 35°C.
Enzymes are biological catalysts that speed up chemical reactions. Their activity is influenced by several factors, including temperature.
At low temperatures: Enzymes have reduced kinetic energy, leading to fewer collisions between the enzyme and substrate. This results in a slower reaction rate.
At optimal temperature: Enzymes exhibit maximum activity. The enzyme's molecular structure is at its most efficient for catalysis.
At high temperatures: Excessive heat causes the enzyme's structure to denature (unfold), losing its shape and function. This results in a sharp decline in enzyme activity.
Since the graph shows the highest point at 35°C, then this is the optimal temperature for the enzyme.
forces between compounds that hold them in place
Answer:
intermolecular forces and intramolecular forces
Explanation:
Intermolecular forces can be described as the forces that are present between molecule or compounds.
Intramolecular forces are forces which are present within a compound or molecule.
For example, consider HCl which is made of hydrogen and chlorine atoms. The forces which will be present between the molecules of HCl will be called as intermolecular forces. The forces which will be present between hydrogen and chlorine will be termed as intramolecular forces.