Answer:
the polygenic is influenced by more then one gene
Explanation:
Does compost cause tomato plants to grow faster and taller than artificial fertilizer?
Answer:
Many farmers and gardeners compost their plant and animal waste. The living material naturally decays in compost bins, forming a dirt-like substance that's rich in nutrients. ... This fertiliser caused his plants to grow faster and taller than they grew in unfertilised soil, artificial fertiliser provides lacking minerals which also speeds up growth, it depends on the richness of minerals in the compost and the quality of artificial fertiliser
How does Klinefelter syndrome caused by nondisjunction might have occurred??
Answer:
Cause. Klinefelter syndrome usually occurs as a random event during the formation of reproductive cells (eggs and sperm). An error in cell division called nondisjunction results in a reproductive cell with an abnormal number of chromosomes.
Explanation:
Im studying human scalp does anyone know what this is?
The picture represents the atypical mole or also known as dysplastic nevi. Such types of moles are looking unusual and have irregular features under the microscope.
What is a Human scalp?A human scalp may be defined as the fraction of the envelope of the human head usually covered with hair in both sexes. It is the region that is composed of soft tissue layers that cover the cranium.
The dysplastic nevi are although benign in nature but significantly have a potent threat to melanoma which is a dangerous form of skin cancer.
Such types of moles are painful, itching, crusting, and swelling with the duration of time. They are required to be checked immediately by a trusted dermatologist.
Therefore, the picture represents the atypical mole or also known as dysplastic nevi.
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How do you split cells in biology?
To split cells in biology, you can use a process called cytokinesis, which is the division of the cytoplasm and organelles between two daughter cells
In biology, the process of splitting cells is known as cytokinesis. There are two main types of cell division: mitosis and meiosis.
Mitosis is the process of a single cell dividing into two identical daughter cells. It occurs in somatic (body) cells and is used for growth and repair. During mitosis, the DNA is replicated and the cell goes through four phases: prophase, metaphase, anaphase, and telophase.
Meiosis, on the other hand, is the process of a single cell dividing into four non-identical daughter cells. It occurs in germ cells (cells used for reproduction) and is used to create gametes (sperm and egg cells). During meiosis, the DNA is replicated and the cell goes through two rounds of division, resulting in the production of four haploid cells.
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A
1
2
B
3
C
Circle A includes items that are red, hot, and round.
Circle B includes items that are red, cold, and
square. Circle C includes items that are purple, hot,
and square.
In which area of the Venn diagram above would you
write the word red?
O A. a
OB. 2
O C. 3
O D. 1
Answer:a
a
Explanation:
which is not one of the defense mechanisms used by antibodies group of answer choices precipitation neutralization localization aggultination
Neutralization is a defense mechanism used by antibodies to protect the body from harmful pathogens and toxins. So, the correct answer is option B.
An antibody's binding to a disease or toxin renders it inactive and stops it from doing any harm.
This is accomplished by neutralising the germs' or toxins' toxic components, rendering them incapable of harming the body.
Immunoglobulins' ability to neutralise pathogens or toxins before they can do any harm makes them particularly effective at preventing illnesses and infections.
If a person has already been exposed to the infection, neutralisation by antibodies may also assist to lessen the severity of symptoms.
Complete Question:
Which of the following is a defense mechanism used by antibodies?
Group of answer choices
A. Precipitation
B. Neutralization
C. Localization
D. Agglutination
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3. With regard to environmental management of waste
rock dumps, what is AMD, how is
it formed and how will you manage dump construction to minimize its
impact on the
environment? [6%]
AMD stands for Acid Mine Drainage. It is formed when sulfide minerals in rocks are exposed to air and water, resulting in the generation of sulfuric acid and dissolved metals. This acidic and metal-rich drainage can have detrimental effects on the environment, including water pollution and damage to aquatic ecosystems.
To manage dump construction and minimize the impact of AMD on the environment, several measures can be implemented:
Prevention: One of the primary approaches is to prevent or minimize the formation of AMD in the first place. This can be achieved by implementing proper waste management practices, including selecting suitable waste rock materials, limiting the exposure of sulfide minerals to air and water, and employing effective cover systems.
Neutralization: Implementing neutralization techniques can help mitigate the acidity of AMD. This involves treating the drainage with alkaline substances, such as lime or limestone, to raise the pH and reduce its harmful effects on the environment.
Containment: Constructing and maintaining effective containment systems is crucial to prevent AMD from infiltrating surrounding soils and water bodies. This can include using impermeable liners, such as clay or synthetic materials, to prevent the leaching of acidic drainage.
Water management: Proper water management is essential to control the movement and accumulation of AMD. This may involve implementing diversion channels, collection systems, and treatment facilities to contain and treat the acidic drainage before it enters the environment.
Monitoring and maintenance: Regular monitoring of water quality, pH levels, and metal concentrations is necessary to detect any potential AMD issues and take appropriate corrective measures. Ongoing maintenance and management of dump sites are crucial to ensure the effectiveness of preventive and mitigation measures.
AMD, or Acid Mine Drainage, refers to the acidic and metal-rich drainage that is formed when sulfide minerals, typically found in rocks associated with mining activities, come into contact with air and water. The exposure of sulfide minerals to oxygen and moisture leads to chemical reactions, resulting in the generation of sulfuric acid. This acid then dissolves metals present in the rocks, such as iron, zinc, and copper, which further contributes to the contamination of water bodies and soil.
The management of waste rock dumps is essential to minimize the impact of AMD on the environment. Dump construction should incorporate measures that aim to prevent the formation of AMD, neutralize its acidity, contain its spread, and manage water flow effectively. These strategies help to minimize the release of acid drainage and metals into the environment, protecting water quality and ecosystems.
The management of waste rock dumps is critical in mitigating the formation and impact of Acid Mine Drainage (AMD). By implementing preventive measures, neutralization techniques, containment systems, effective water management, and regular monitoring, the environmental impact of AMD can be minimized. Adhering to best practices and regulations ensures responsible waste management and helps safeguard water resources and ecosystems.
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Which event occurs during telophase of mitosis?cytoplasm dividesnuclear membranes reformsister chromatids separatechromosomes become visible
During the Telophase, the daughter chromosomes reach the poles. Telophase passes into the next interphase as the nuclear envelopes and the nucleoli re-form and the chromatin becomes diffuse.
On the other hand, remember that cytokinesis starts during the nuclear division phase called anaphase and continues through telophase. Cytokinesis is the physical process of cell division, which divides the cytoplasm of a parental cell into two daughter cells.
We can conclude that the correct answers are:
Answer:Nuclear membranes reform
and
Cytoplasm divides
Which human activity is correctly paired with its likely future consequence?
overfishing in the Atlantic - increase in supply of flounder and salmon as food for people
2.
development of electric cars or hybrid vehicles - increased rate of global warming
3
use of fossil fuels - depletion of underground coal, oil, and natural gas supplies
4
genetically engineering animals - less food available to feed the world's population
What happens when electrons are passed from one atom to a more electronegative atom? (A) The more electronegative atom is reduced, and energy is released. (B) The more electronegative atom is reduced, and energy is consumed. (C) The more electronegative atom is oxidized, and energy is consumed. (D) The more electronegative atom is oxidized, and energy is released.
When electrons are passed from one atom to a more electronegative atom then the more electronegative atom is reduced and energy is released.
The electronegative atom has the tendency to attract more electron and also has the ability to handle their charge better. So when an atom moves from less electronegative to more electronegative atom it means that it is transferred from a high energy to low energy.
The increase in electronegative is due to the increase in no. of proton in the nucleus. The energy that is released is used to maintain proton gradient.
Proton is a subatomic particle with a positive charge and its mass is less than neutron.
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How does an organisms life begin?
Answer:
Living organisms undergo growth and development. Every living organism begins life as a single cell.
Answer:
The life of an animal organism, obviously, begins at conception. But human life begins only at the moment that the animal has a mind. In some, very fast, developers this can happen before the age of one year; in a large majority of cases this happens between two and three years of age.
Explanation:
2. His eroployment ineome for 2021 which is shown on his \( 2021 \mathrm{~T} 4 \) slips is \( \$ 95,000 \) 3. Mr. Finch is 50 years old and is divorced. He has custody of his four children, Randy 25 ,
To determine the child support payments for Mr. Finch, we need to use the Federal Child Support Guidelines (FCSG), which consider the following factors:
the number of children who need supportthe annual income of the parent who will pay supportthe province or territory where the parent who will pay support lives Here, Mr. Finch has custody of his four children, and his annual employment income for 2021, shown on his T4 slips, is $95,000.Therefore, we will use the FCSG Table to determine the basic monthly child support amount. To find the basic amount, we have to:
Step 1: Identify the number of children who need support. Here, Mr. Finch has four children.
Step 2: Identify the annual income of the parent who will pay support. Here, Mr. Finch will pay child support.
Step 3: Determine the province or territory where the parent who will pay support lives. We don't have this information in the question, so let's assume he lives in Ontario.
According to the Federal Child Support Guidelines Table for Ontario, the basic monthly child support amount for four children where the paying parent has an annual income of $95,000 is $2,463. So, Mr. Finch will have to pay $2,463 per month as basic child support amount.
As he has sole custody of his children, there will be no shared custody reduction. However, there may be other factors that can affect the child support payments.
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The graph on the right is the blood oxygen graph. Using that and your knowledge of cellular respiration and the relationship between oxygen and carbon dioxide, what can you say about the rate of carbon dioxide production when you exercise?(did it increase or decrease? Did it stay the same? Did it change quickly? Did it change very slowly?)why do you think this happens? Please help me
The rate of carbon dioxide production increases when you exercise because of the process of cellular respiration.
What is cellular respiration?Cellular respiration is the process in which glucose combines with oxygen forming waste products such as carbon dioxide and water along with the energy in the form of ATP molecules which are used by the cell. We know that cell is the structural and functional unit of life and every cell requires energy to perform its activities. Respiration takes place at the smallest level of our body i.e. at the cellular level. Respiration is the opposite process of photosynthesis. In photosynthesis, food is produced from the combination of carbon dioxide and water in the presence of light.
So we can conclude that due to the process of cellular respiration, the rate of carbon dioxide production increases when you exercise.
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Three different dynamic carts of different masses are rolled down a ramp. The heaviest one rolls down the ramp the fastest. Before concluding that a more massive cart will roll down a ramp faster, what experiment with these three carts might you want to do?
A) Run an experiment with the ramp at a different angle.
B) Find a fourth cart to add to the test, then test again
C) Change the surface of the ramp, then test the carts again.
D) Add masses to each car until they have the same mass, then test the carts again.
Answer:
The answer is D ;)
Explanation:
I got it right on USA TEST PREP
D) Add masses to each car until they have the same mass, then test the carts again.
How does mass of an object does have an effect on its acceleration?The mass of an object does have an effect on its acceleration down a ramp, as described by the formula F=ma (force = mass x acceleration).
However, the relationship between mass and acceleration is not as simple as assuming that a more massive cart will always roll down the ramp faster.
This is because there are other factors that can affect the acceleration of the cart, such as the angle of the ramp, the surface of the ramp, and the friction between the cart and the ramp.
To isolate the effect of mass on acceleration, it would be necessary to control for these other variables. Adding masses to each cart until they have the same mass would allow for a fair comparison of the effect of mass on acceleration down the ramp.
By ensuring that the only variable that is changing is the mass of the cart, it would be possible to determine whether the heaviest cart does indeed roll down the ramp the fastest.
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You are testing enteric bacteria for catalase activity and some of the bacteria begin bubbling immediately upon addition of the H2O2, while others may take a few minutes before some weak bubbling occurs. Are these late, weak bubbles the result of a positive catalase test
Yes, the late, weak bubbles that occur in some enteric bacteria after the addition of hydrogen peroxide (H₂O₂) are a positive indication of catalase activity.
Catalase is an enzyme that catalyzes the decomposition of hydrogen peroxide into water and oxygen gas. It is a key enzyme in the defense against reactive oxygen species (ROS) produced by the immune system in response to bacterial infection, among other things. Hydrogen peroxide is the reagent utilized to test for catalase activity in enteric bacteria.
Catalase-positive bacteria will release oxygen gas upon the addition of hydrogen peroxide. The time it takes for the bacteria to release oxygen gas can vary. Some bacteria will release oxygen immediately upon the addition of hydrogen peroxide, while others may take a few minutes before some weak bubbling occurs.
The late, weak bubbles that occur in some enteric bacteria after the addition of hydrogen peroxide (H₂O₂) are a positive indication of catalase activity.
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List the three components of the cell theory. *
i givw 20 points
Answer:
All living things are made of cells and their products, New cells are created by old cells dividing into two, Cells are the basic building units of life.
are The nonpolar tails of a phospholipid are attracted to water.
Answer:
No
Explanation:
They're hydrophobic and face the inside, away from the water.
Over millions of years, all of the tiny changes caused by microevolution add up. With all the tiny changes over time, the species can look drastically different. This is referred to as ______________________. Sometimes the changes are so drastic that the new organisms are classified as a different species from what they used to be like.
Answer:
I think it is evolution???
Explanation:
it talks about the changes in animals and when a species changes to adapt to a new environment or conditions it is called evolution
Hope it helps
In the dihybrid cross,_____of the parents had black fur and black eyes. The offspring_____.
Answer:
both,varied
Explanation:
Answer:
Both, Varied
Explanation:
edge 2022
How can you test a scientific hypothesis?
Answer:
A hypothesis is a conjecture, based on knowledge obtained while seeking answers to the question. The hypothesis might be very specific, or it might be broad. Scientists then test hypotheses by conducting experiments or studies.
What relationship might exist between fish kill events and rainfall?
Answer:
Large rain events
Explanation:
They can also rapidly circulate the water in a lake or pond, causing changes in the position of oxygen rich water in a short period of time. This quick 'turnover' of the water can quickly decrease the amount of oxygen available to fish, essentially causing them to suffocate.
What is Important about the soil pH?
Answer:
Soil pH affects the amount of nutrients and chemicals that are soluble in soil water, and therefore the amount of nutrients available to plants. Some nutrients are more available under acid conditions while others are more available under alkaline conditions.
Does obsidian occur naturally
Answer:
yes
Explanation:
obsidian is formed when lava cools
7. For radio reception, diffraction is _________.
a. helpful
b.a hindrance
c.cannot tell its effect
d.not a factor
Answer:
well, i think the correct answer is
B_ a hindrance
For radio reception, diffraction is hinderance. The phenomenon of waves interacting with particles is known as diffraction.
What is diffraction?
The phenomenon of waves interacting with particles is known as diffraction. This happens when the aperture's or obstacle's size is of the same order of magnitude as the wave's wavelength.
The wave transmitted through an aperture that has a width smaller than its wavelength expands out completely and behaves like a point source of waves.
The small bending of light as it travels around an object's edge is known as diffraction. The ratio of the wavelength of the light to the opening size determines how much bending occurs.
Therefore, For radio reception, diffraction is hinderance. The phenomenon of waves interacting with particles is known as diffraction.
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The codons UUU, UUC, UUA, and UUG all code for the amino acid leucine. This shows that the genetic code is
The genetic code is a set of rules that governs the translation of nucleotide sequences in DNA or RNA into amino acid sequences in proteins. It is a universal code that is shared by all living organisms. The fact that the codons UUU, UUC, UUA, and UUG all code for the same amino acid, leucine, demonstrates the degeneracy or redundancy of the genetic code.
Degeneracy refers to the fact that multiple codons can code for the same amino acid. In the case of leucine, it is encoded by the codons UUU, UUC, UUA, and UUG. This redundancy in the genetic code provides a level of robustness and protection against mutations. Even if a single nucleotide in the codon is altered through a mutation, there is a high probability that the same amino acid will be coded for due to the degeneracy of the code.
The existence of multiple codons for a single amino acid also allows for variation and adaptability in the genome. It provides flexibility in the coding sequence, allowing for silent mutations that do not result in changes to the amino acid sequence. This flexibility can be advantageous in evolutionary processes, as it allows for genetic variation without necessarily impacting the function or structure of the protein.
Overall, the fact that the codons UUU, UUC, UUA, and UUG all code for leucine exemplifies the degeneracy and redundancy of the genetic code. It highlights the versatility and adaptability of the code, providing a mechanism for accurate protein synthesis and genetic variation.
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what strategy, taken to an extreme in organisms like humans and elephants, can increase an organisms fitness because, from the perspective of evolution, children must survive to the age of reproduction?
In species like humans and elephants, the use of excessive parental care can improve an organism's fitness.
Care can be advantageous if parents (1) increase offspring survival during the stage in which parents and offspring are connected, (2) enhance offspring quality in a way that increases offspring survival and/or reproduction in the future when parents are not connected with offspring, and/or (3) directly...
Parental care - which is defined as any parental behavior or adaptation that improves the fitness of the offspring, frequently at some cost to the caregiver, exhibits striking diversity among species, ranging from short-term and relatively simple behaviors, like egg attendance, to long-term and elaborate adaptations, like some forms of food.
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what did comparisons of the sequence of the mitochondrial genome in trypanosomes with the sequence of mature mitochondrial rnas demonstrate?
Comparisons demonstrated that RNA editing occurs in trypanosome mitochondria.
In trypanosomes, which are parasitic protozoa, the sequence of the mitochondrial genome differs significantly from the sequence of the mature mitochondrial RNAs. This discrepancy is primarily due to a phenomenon called RNA editing. RNA editing is a post-transcriptional process in which the primary RNA transcript is modified by the insertion or deletion of nucleotides or by base modifications, leading to the production of mature RNA molecules with a different sequence.
Comparisons between the mitochondrial genome and mature mitochondrial RNAs in trypanosomes have revealed that the RNA editing process extensively modifies the transcript, resulting in significant changes in the final RNA sequence. The edited RNAs are crucial for the proper functioning of mitochondrial processes and the synthesis of proteins within the mitochondria.
RNA editing in trypanosomes is a unique and complex process that involves the action of specialized enzymatic complexes. It plays a vital role in the adaptation and survival of these parasites by allowing them to generate diverse protein isoforms from a relatively limited set of genes. The comparisons between the mitochondrial genome and mature mitochondrial RNAs have provided valuable insights into the mechanisms and significance of RNA editing in trypanosomes.
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how did the bloods and krips began
Answer:
The Bloods gang was formed initially to compete against the influence of the Crips in Los Angeles.
Explanation:
I hope this helps! :)
What 2 types of point mutations will cause a frameshift mutation?
Answer:
Insertion and deletion
Explanation:
A frameshift mutation is when the entire reading frame of DNA is shifted, and incorrect.
Frameshift mutations can either be caused by insertion or deletion.
When insertion or deletion occur, a nonsense protein will be made.
So, the correct answer is insertion and deletion.
Hair-like structure that attaches the cell to a surface and can transfer genetic material from one cell to another.
Hair-like structure that attaches the cell to a surface and can transfer genetic material from one cell to another is called as fimbriae or pili
Bacterial cells' surfaces frequently have fimbriae and pili. Short, hair-like projections called fimbriae are used by bacteria to adhere to surfaces or other cells. Pili are similar structures that can help a bacterium move or transfer DNA to another bacterium, among other things. Many bacteria can move or locomote by using a whip-like structure called a flagellum (or flagella, if they have more than one).
Fimbriae or pili are proteins in nature. Fimbriae are formed by a pilin kind of protein.
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