in high elevation forests n Pennsylvania, ecologists have noticed a serious decline in certain tree species. Some scientists propose that increased soil acidity might be the cause. Whats the phenomenon? A. Mercury contamination B. Decreased in pH caused by climate change C. Acid rain, which is caused by SO2 from combustion mixed with atmospheric water vapor D. Ozone depletion
Answers
Answer:
I would choose answer B.
Explanation:
Acid rain is caused by combustion chemicals mixing with water vapor in the atmosphere. It normally results in high amounts of acid in the soil, and surrounding bodies of water.
Related Questions
I PROMISE TO GIVE BRAINLIEST!!!!! PLEASE HELP MY EXAM IS TIMED!!!! have a great day (:
Which of the following is a correct description for the relationship between DNA, Chromosomes, and Genes?
Question options:
A genes are made of chromosomes and contains many DNA's
B DNA is made of genes and contains many chromosomes
C chromosomes are made of DNA and contain many genes
D genes are made of DNA and contain my chromosomes
Answers
Answer:C
Explanation:Chromosomes are big piles of DNA that unravel when needed. DNA are made up of billions of genes that correspond to the order of TC AG. to C is the correct answer. hope this helps. brainliest pls
PLEASE HELP ASAP!!! CORRECT ANSWERS ONLY PLEASE!!
Answers
Answer:
Fault H, then layer G and F
Explanation:
The fault H first because the layers are deformed , which means the rocks accumulated on the fault under pressure.
For this discussion post, I read the article “A creator of ‘CRISPR babies’ nears release from prison, where does embryo editing stand?
This article explained how biophysicist He Jiankui, who used the genome editor CRISPR to create the world's first genetically engineered babies, may be released from prison this week.
His November 2018 announcement about gene editing was well received. Still, Fyodor Urnov sees no circumstance that would justify efforts to modify babies genetically. Urnov supports using CRISPR to fix disease-causing mutations after birth. The work has proceeded with little notice, and oversight measures to stop rogue experiments like He's have stalled. A study showed how CRISPR could get rid of a newly fertilized egg of an extra copy of a chromosome. This problem can lead to Down syndrome and other medical conditions. The initial concerns about designer babies centered on CRISPR's sloppiness. But a study of CRISPR-altered human embryos found 16% had these "unintended editing outcomes" at the targeted DNA, and genetic screening of edited IVF embryos might not catch these errors. Stem cell researcher Dietrich Egli hopes to find a way to start and stop CRISPR at the embryo's single-cell stage. In a preprint posted on bioRxiv on 10 March, Egli's group demonstrated a strategy for trisomy, an errant third chromosome, by targeting an extra paternal or maternal chromosome copy with a CRISPR cut at or near its centromere.
If CRISPR does not correct the trisomy in all of the cells in an early embryo, a natural "rescue mechanism" might eliminate the abnormal cells. However, there are still multiple obstacles to overcome. Researchers are trying to use CRISPR to edit human embryos but need help beyond science. Editing the DNA of egg or sperm precursor cells may avoid some of these hurdles, improving the odds of getting it right. Orwig's team is exploring a different route to creating edited sperm stem cells by reprogramming adult human cells into a stem cell state and trying to coax them partly down the pathway that produces sperm. However, reprogrammed adult cells only survive when placed into newborn animals, which is unrealistic for humans. Scientists say the increased awareness of CRISPR's shortcomings has underscored the recklessness of transplanting edited embryos with today's technology. Still, some scientists are openly advocating for the practice.
find something interesting and 1-2 questions about the summary
Answers
One interesting aspect of the article is the discussion around using CRISPR to edit disease-causing mutations after birth, rather than in embryos.
What is the authenticity if genetically modifying babies ?Fyodor Urnov supports this approach and believes that there is no circumstance that would justify modifying babies genetically. This raises the question of whether there is a moral or ethical line that should not be crossed when it comes to genetic modification of humans, even if it is done to prevent or treat disease.
Another interesting point is the potential use of CRISPR to edit the DNA of egg or sperm precursor cells to avoid some of the hurdles of editing embryos. This raises the question of how this approach would be implemented and regulated, as it involves altering the genetic material of potential future offspring before they are even conceived.
Overall, the article highlights the ongoing debate and ethical considerations around the use of CRISPR for genetic modification in humans, as well as the need for continued research and oversight to ensure that any such use is safe and ethical.
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HELP ME PLEASEEEE !!!
Answers
Answer:
True
Explanation: hope this helps!
Answer:
true
Explanation:
Sustainability is the ability to exist constantly. In the 21st century, it refers generally to the capacity for the biosphere and human civilization to co-exist. -Wikipedia
A plant absorbs energy from the Sun. Where does the energy go from there? All of the energy is used by the plant. All of the energy is released as heat energy. All of the energy is transferred to primary consumers. Some of the energy is stored in the plant's tissues and the rest is released as heat energy.
Answers
All of the energy is transferred to primary consumers some of the energy is stored in the plant's tissue and rest is released as heat energy.
Photosynthesis is not a very effective process. Additionally inefficient is the transfer of energy from one trophic level to another. There is heat loss during these biological reactions.
Therefore, only a part of the sun's energy is transformed during photosynthesis into carbohydrates and subsequently plant tissue.
Additionally, only 30% of the energy in plant biomass is used by primary consumers when they eat plants.
Heat is lost from the other. The law of entropy is to blame for this.one trophic level to another. There is heat loss during these biological reactions.
Therefore, only a part of the sun's energy is transformed during photosynthesis into carbohydrates and subsequently plant tissue.
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write the phenotype and genotype
Answers
Explanation:
The concepts of phenotype and genotype are related to genetics.
The phenotype is generally called the external appearance of the living thing, which is formed by the genetic information and environmental effects.
Genotype is the genetic information that an organism carries in its DNA.
For example; Character A is the favorite black color. a is the blue color character.
While the Aa display shows the individual with black eyes in the phenotype, the genotype is expressed as heterozygous dominant black eyes.
A rock cycle model is shown.
(In image)
What type of rock is formed from cooling and hardening process?
A. Sedimentary rock
B. Igneous rock
C. Metamorphic rock
D. Magma rock
Answers
Answer:
b) Igneous rock
Explanation:
Igneous rock is formed from cooling and hardening process. As given in the diagram the magma undergoes cooling and hardening process to become an Igneous rock. Hence, the option (b) is correct.
Answer:
What type of rock is formed from cooling and hardening process?
A. Sedimentary rock
B. Igneous RockC. Metamorphic rock
D. Magma rock
Which of the following is the term for a red clay soil commonly found in the southeastern portion of the United States?
O mollisol
O ultisol
Oudoll
O aquoll
Answers
Answer:
Ultisols
Explanation:
....................
Todd has a see through glass tank with air, plants, and animals that eat those plants. He sealed the tank so no material can get into or out of it, but light can get in when the tank is not covered. The tank has been covered all night, and Todd measured the carbon in the air and found that it is increasing. How is carbon moving between the air and the living things in the tank? What is happening to the amount of carbon in living things? Explain your thinking as completely as possible.
Answers
The answers include the following below:
Carbon moving between the air and the living things in the tank by the process of respiration and from the surrounding back into plants via photosynthesis.The quantity of carbon in the living things are expanding or increasing because plants use this carbon in the process of photosynthesis from the environment and animals consumes those plants.What is Photosynthesis?This is referred to as the process in which green plants manufacture food in the presence of sunlight and other compounds such as water and cabon dioxide etc.
In the tank, there are plants and animals present which therefore means that the animals exhaled carbon dioxide from the animals will be used by the plant for photosynthesis while one of the product of photosynthesis which is oxygen is then used by the animals during respiration.
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studocu mutations are simply changes in the sequence of nucleotides. there are three ways this occurs: 1. change a nucleotide(s) 2. remove a nucleotide(s) 3. add a nucleotide(s)
Answers
Mutations occur through changes, removal, and addition of nucleotides.
Mutations are simply changes in the sequence of nucleotides in DNA. There are three ways that mutations occur: 1) change of a nucleotide(s), where one nucleotide is substituted for another; 2) removal of a nucleotide(s), where one or more nucleotides are deleted from the sequence; and 3) addition of a nucleotide(s), where one or more nucleotides are inserted into the sequence. These mutations changes in the sequence of nucleotides can have a range of effects on the function of the resulting protein, and can contribute to the evolution of species over time.
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The Complete Question is :
What are the three ways that mutations occur in the sequence of nucleotides?
As a result of your Zombie Apocalypse, the grass at a local park will no longer be mowed. What type of succession is this (primary or secondary)? Describe the stages of succession that will occur in the next 100 years.
What type of succession is this depicting?
Answers
Secondary succession is the kind of succession that might develop in a neighborhood park after the Zombie Apocalypse if the grass wasn't cut anymore and pioneer species would first colonize the bare soil.
Thus, pioneer species like weeds and grasses would colonize the bare soil and disturbed regions in the initial stage of secondary succession. These species can swiftly adapt to a new habitat since they are frequently resilient and rapidly developing.
In secondary succession, the pioneer species are the early settlers multiply and spread, the soil conditions become more stable and draw in additional species like shrubs and tiny trees. These animals are modifying the environment in a way that makes it possible for bigger and more diversified populations of creatures to live in more complicated settings.
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Identify how many amino acids exist in nature and make up all proteins in living organisms.
A: 20
B: 22
C: 24
D: 26
Answers
Answer:
The answer is 20 amino acids
Answer:
20 is the correct ans
Explanation:
hope it helps you
In rats, offspring of larger mothers tend to be larger than offspring of smaller mothers, even when fed the same diet and raised apart from their mothers. When fed higher calorie diets, rats tend to be larger than rats fed lower calorie diets, even when they are offspring of the same mother. These two experimental results suggest that rat body size is influenced by which factors
Answers
Answer:
The correct answer would be - environmental and genetic (allelic) factors.
Explanation:
The phenotype of an animal can be manipulated or affected by the change in gene expression through environmental factors. Environmental factors can be temperature, diet, oxygen level, light, and many other abiotic factors. In this case, diet is affecting the phenotype of the rats that eat high-calorie diets.
Genetic or allelic factors are also expressed in this case as the size of the rats also depends on the size of the mother rat which means that there are some genes also carry these traits
Which correctly lists three characteristics that are used to describe air? altitude, density, radiation O density, radiation, mass Omass, pressure, density Opressure, altitude, radiation
Answers
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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i need help with these
Answers
Phagocytes are a type of immune cells that specialize in engulfing and digesting foreign particles, such as bacteria, viruses, and cellular debris. The two phagocytes are Neutrophils and Macrophages.
Neutrophils are a type of white blood cell and are the most abundant phagocytes in the bloodstream. They are quick to respond to infections and are often the first immune cells to arrive at the site of an infection. Neutrophils engulf and destroy pathogens by a process called phagocytosis.
Macrophages are a type of white blood cell that is present in various tissues and organs of the body. They are highly specialized phagocytes and play a crucial role in engulfing and eliminating foreign substances. Macrophages not only participate in immune responses but also contribute to tissue repair and maintenance.
The correct answer is Neutrophils and Macrophages.
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Which label on the diagram to the right indicates the site of blood filtration?
A
B
C
Answers
Looking at the image and the labelings critically, the site of blood filtration, otherwise known as the glomerulus, is labeled as A.
The glomerulusThe kidney functions primarily in the process of excreting substances such as urine and toxic drugs.
The excretory substances in the blood are filtered off in the glomerulus of the kidney.
The structure marked A represents the glomerulus. C is known as the Bowman's capsule.
Thus, blood filtration happens at A.
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Answer:
A
Explanation:
edge 2022
Who is a recessives allele different from a dominant allele
Answers
Answer:
recessive allele requires two alleles for manifestation while a dominant allele manifests even in heterozygous condition
What macromolecules in the plasma membrane are most directly responsible for transporting large.
polar molecules into or out of the cell?
carbohydrates
nucleic acids
phospholipids
proteins
Answers
Answer:
Proteins
Explanation:
There are proteins in the membrane that have channels for large polar molecules to move into or out of the cell since the plasma membrane is made of a phospholipid bilayer where the inside is non polar. This means large polar molecules need help from proteins to cross the plasma membrane.
Describe how physical weathering and chemical weathering are the same and different, and explain why biological weathering can be either one.
Answers
The similarities between physical weathering and chemical weathering are that both of the processes wear away rocks. Physical weathering is the process of breaking down the rock's physical structure into smaller pieces, and it works with mechanical forces like friction and impact. On the other hand, chemical weathering alters or changes the rock's chemical composition that occurs at the molecular level. It is accompanied by exchanging of ions and cations.
Biological weathering usually involves the breaking down of rocks with the help of living things such as plants and animals.
For example, plant roots growing through the rocks resulted in the breaking of the rocks into parts. This process is within the scope of physical weathering. In some cases, plants and animals might release acid-forming chemicals that can result in weathering and thereby contributes to the breaking down of rocks. This can be within the scope of chemical weathering.
What is the difference between a solar pillar and a sun dog?
Answers
Assuming that correlation establishes causation is a common practice in "bad science". Explain what it means and why it is "bad science".
Answers
Answer:
The question is confusing and poorly worded I think, but correlation does not equal causation in normal science. Just because there is correlation between two variable, you cannot just assume one variable causes the other variable. Hence, I guess bad science here means it's conclusion with logical fallacy.
Drag the tiles to the correct locations. The tiles can be used more than once.
Identify which type of reaction the feature occurs in.
light-dependent reactions
light-independent reactions
Feature
releases oxygen
fixes carbon dioxide
takes place in the stroma
takes place in the grana
produces ATP
Type of Reaction
Answers
The correct answers are:
Releases oxygen: Light-dependent reactions.Fixes carbon dioxide: Light-independent reactions (Calvin cycle).Takes place in the stroma: Light-independent reactions.Takes place in the grana: Light-dependent reactions.Produces ATP: Light-dependent reactions.The features mentioned correspond to specific steps or characteristics of photosynthesis, which is a process carried out by plants and some other organisms to convert sunlight into energy. Photosynthesis consists of two main sets of reactions: the light-dependent reactions and the light-independent reactions (also known as the Calvin cycle or dark reactions).
Now let's match the features with the appropriate type of reaction:
Releases oxygen:
This feature occurs in the light-dependent reactions. During the light-dependent reactions, water molecules are split, and oxygen gas (O2) is released as a byproduct.Fixes carbon dioxide:
This feature occurs in the light-independent reactions. The light-independent reactions utilize the energy and ATP generated in the light-dependent reactions to convert carbon dioxide (CO2) into carbohydrates through a process known as carbon fixation.Takes place in the stroma:
This feature occurs in the light-independent reactions. The light-independent reactions take place in the stroma, which is the fluid-filled space within the chloroplasts, specifically in the chloroplasts' inner membrane.Takes place in the grana:
This feature occurs in the light-dependent reactions. The light-dependent reactions take place in the thylakoid membranes of the grana, which are the stacked membrane structures within the chloroplasts.Produces ATP:
This feature occurs in the light-dependent reactions. The light-dependent reactions generate ATP (adenosine triphosphate) through the process of photophosphorylation, using light energy to convert ADP (adenosine diphosphate) into ATP.Type of Reaction:
Releases oxygen, takes place in the grana, and produces ATP: Light-dependent reactions.Fixes carbon dioxide and takes place in the stroma: Light-independent reactions (Calvin cycle).In conclusion, light-dependent reactions: Releases oxygen, takes place in the grana, and produces ATP, and light-independent reactions (Calvin cycle): Fixes carbon dioxide and takes place in the stroma.
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The features 'releases oxygen', 'produces ATP' and 'takes place in the grana' are associated with light-dependent reactions. The 'fixes carbon dioxide' and 'takes place in the stroma' features are attributed to light-independent reactions.
Explanation:In photosynthesis, two types of reactions occur, which can be categorized as light-dependent reactions and light-independent reactions. We can locate features to their corresponding categories based on their characteristics. The releases oxygen and produces ATP features are part of the light-dependent reactions, which take place in the grana. These reactions utilize light energy more than once to convert water and ADP (adenosine diphosphate) into oxygen and ATP (adenosine triphosphate).
On the other hand, the fixes carbon dioxide feature is part of the light-independent reactions which take place in the stroma. This is where the carbon dioxide is fixed into glucose, a form of sugar, using the ATP produced in light-dependent reactions.
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Cause
The U.S. Constitution
establishes federalism.
A. The federal government cannot completely control the states.
B. State governments give up the power to collect taxes.
C. State governments are given the power to set up all courts.
D. The federal government gains the right to remove state leaders.
Answers
'The federal government cannot completely control the states' best completes the diagram.
What do you mean by Government?
Government is a system of organization through which a society or state is controlled, including its laws and policies. It is typically composed of an executive, legislative, and judicial branch, which operate together to ensure the protection of citizens and the effectiveness of laws and policies.
The federal government and the states exist in a system of shared power known as federalism. This means that the federal government and the states have certain powers that they can exercise independently of each other and that neither one can completely control the other. The federal government has certain enumerated powers such as the power to declare war, regulate interstate commerce, and raise taxes. The states, on the other hand, have the authority to pass laws on matters not specifically delegated to the federal government, such as education and local infrastructure. This division of powers ensures that the states maintain a certain level of autonomy and cannot be completely controlled by the federal government.
Hence, option A is correct.
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During an evening hike, you see a shooting star just like the one pictured here.
In which layer of the atmosphere does this shooting star occur?
troposphere
stratosphere
mesosphere
thermosphere
Answers
The shooting star occurs in the mesosphere, which is the layer of the atmosphere above the stratosphere and below the thermosphere.
The shooting star observed during an evening hike occurs in the mesosphere. Shooting stars, also known as meteors, are visible when small particles, typically from comets or asteroids, enter the Earth's atmosphere and burn up due to friction with the air molecules. The mesosphere is the third layer of the Earth's atmosphere, located above the stratosphere and below the thermosphere. It extends from about 50 to 85 kilometers (31 to 53 miles) above the Earth's surface. In the mesosphere, the air is thin and the temperature decreases with altitude. This layer is where most meteors burn up and produce the phenomenon of shooting stars that we observe from the ground.For more such questions on Mesosphere:
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Why do fat cells and nerve cells have different structures and functions?
A. The same set of genes codes for different proteins in fat cells and in nerve cells.
B. Fat cells and nerve cells contain different sets of genetic instructions.
C. Different sets of genes are expressed in the two types of cells.
D. Fat cells lack DNA and rely on nerve cells for their genetic instructions.
Answers
Fat cells and nerve cells have different structures and functions because Different sets of genes are expressed in the two types of cells. Option C
What should you know about the structure and function of fat and nerve cells?Genes are the basic units of heredity. They are made up of DNA and contain the instructions for building proteins.
Proteins are the building blocks of cells and tissues, and they perform a wide variety of functions in the body.
Different cells need different proteins to perform their functions. For example,
fat cells need proteins to store fat,
while nerve cells need proteins to transmit electrical signals.
The genes that code for these proteins are expressed in different cells.
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5.) Morgan buys a male python from a snake dealer who tells him that the snake carries the albino allele. Morgan mates the snake with an albino female, and ten normally pigmented offspring are produced with zero albino offspring. Morgan rushes back to the snake dealer and demands his money back stating that the male he bought is not heterozygous for the albino allele because all of its offspring had normal pigmentation. Is Morgan’s position supported by genetic theory? Why?
Answers
From the illustration, Morgan's claim could be valid and his position is supported by genetic theory.
Dominant/recessive allelesIt can be inferred from the claim of the snake dealer that albinism in male python is a recessive trait. If this claim is true, let us assume that the albino allele is represented by b and the alternate form is B.
The genotype of the snake Morgan bought will be Bb as claimed by the dealer.
Morgan mated Bb snake with an albino snake which would be bb.
Bb x bb
Bb Bb bb bb
Thus, the mating should have produced albino to non-albino snakes in the ratio 1:1.
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Which macromolecule is responsible for energy storage, cell membranë
structure, and insulation and protection?
Answers
Answer:
The Cell Wall
Explanation:
Answer:
Lipids.
Explanation:
Lipids are responsible for energy storage, cell membrane structure, and insulation and protection. Examples of lipids range to waxes, triglycerides, and oils.
what are
two positive and two negative effects of land use by humans.
Answers
Answer: Positive:
1. Keep humans alive
2. Adequate food
Negative:
1. pollution
2. over population
Explanation:
Describe the development of the zygote until implantation occurs.
Answers
Pikas grow thick fur in winter, and their small bodies conserve heat. Kangaroo rats
do not sweat, and oily fur helps them conserve moisture. They get water from seeds.
Predict what would happen if a pika and a kangaroo rat switched environments.
Answers
A pika's adaptation to its habitat includes growing thick fur in winter to conserve heat. In contrast, the desert environment where the kangaroo rat lives is very hot and dry; therefore, its oily fur helps to conserve moisture rather than heat. The pika's thick fur would make it too hot in the desert environment, whereas the kangaroo rat's oily fur would not be sufficient to conserve moisture in the colder environment.
Additionally, pikas get their water from consuming snow whereas kangaroo rats get water from seeds. In a colder environment, snow is readily available, but in the desert, there is no snow. The kangaroo rats might not be able to survive in colder environments if they do not have access to water, and the pika might not be able to survive in the desert without access to snow.
Therefore, it is likely that the adaptations that allowed the pika and the kangaroo rat to survive in their respective environments would make it difficult for them to survive if they were to switch habitats.