Please help me?!?!?!

Answer:

LSD (lysergic acid diethylamide) is a synthetic chemical, made from a substance found in ergot, which is a fungus that infects rye (grain).

So d) Fungus.

Snakes periodically shedding skin shows a discontinuity in development.

Discontinuity in development is an inconsistent and inconsistent change in development. Discontinuous development is marked by irregular, non-linear changes that can occur in brief or long-term periods.

Shedding is a typical process in which snakes remove their outer skin layer, also known as shedding their skin or molting it. This process, known as ecdysis, is done by all reptiles, including snakes. It usually happens every few weeks or months, and it helps the snake in removing parasites, heal wounds, and get rid of damaged skin.

Snakes shed their skin periodically because it does not grow with their bodies. This results in discontinuity in development because snakes have an unpredictable change in development because of shedding.

The other options given in the question do not show discontinuity in development because: Changing rate of tree growth across seasons: Although the growth rate of trees may differ from season to season, there is no sudden and inconsistent change in tree growth.

Stages of caterpillar to chrysalis to butterfly: This is an instance of complete metamorphosis, where a creature goes through four distinct stages of development, but they follow each other linearly without any sudden or inconsistent changes.

Flowers blooming: Flowers bloom on a consistent schedule or based on environmental factors. Their growth and development are in a steady state without any sudden changes.

Therefore, snakes shedding their skin periodically shows a discontinuity in development.

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Meg, because trees with needles are not deciduous.

Evergreens have thick, waxy leaves that are coiled up into long, thin needles. The needle form allows evergreens to save water in the summer and winter, allowing photosynthesis to continue. This is why the needle leaves may stay connected and green all year.

Because evergreen needles are thinner and have less surface area to dry or freeze than huge deciduous leaves, they can endure low weather. Their breathing pores, known as stomata, are located at the base of the needles and stay closed during the winter to protect them from temperature extremes.

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Cell transport describes the passage of a material across a cell membrane. The material has the ability to enter or exit cells. Different substances travel through the cell membrane or plasma membrane.

Material moving across cell walls is referred to as cell transport. Both inactive and active cell movement are involved. Active transport needs energy to operate, whereas passive transport doesn't. Osmosis, assisted diffusion, and diffusion take place during passive movement.

In a cell, there are four different kinds of transfer systems. These are main active transport, secondary active transport, facilitated diffusion, and straightforward diffusion.

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Answer:

Observing chloroplasts in a cell under the microscope is evidence that the cell is a plant cell. Chloroplasts are organelles found in plant cells that are responsible for photosynthesis, the process by which plants convert sunlight into energy. Animal cells do not have chloroplasts, as they do not carry out photosynthesis.

Amoeba is a unicellular organism with shape-changing capabilities. They typically live in bodies of water like ponds, lakes, and slowly moving rivers.

A modification to a cell's chromosomes or genes is referred to as a mutation. The structure and growth of the progeny could be impacted by this change in the gametes. In biology, a mutation is an alteration to the genome, extrachromosomal DNA, or the nucleic acid sequence of a virus.

Gene mutations can be divided into two categories: small-scale mutations and large-scale mutations.

The structure and growth of the progeny could be impacted by this change in the gametes. In biology, a mutation is an alteration to the genome, extrachromosomal DNA, or the nucleic acid sequence of a virus.

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Answer:

I believe it's Dynamic Strength.

Explanation:

I hope this helps! :)

Answer:

1. Yes, the contribution of Jennifer Doudna has had a significant impact on the world of science, particularly in the field of molecular biology. She co-developed a groundbreaking gene-editing tool called CRISPR-Cas9, which is considered one of the most important scientific breakthroughs of the 21st century. This tool allows scientists to precisely cut, edit, and manipulate DNA, which has important implications for treating genetic diseases and advancing scientific research.

2. Yes, Jennifer Doudna's contribution has helped people in various ways. For instance, her work on CRISPR-Cas9 has the potential to revolutionize the treatment of genetic diseases, such as sickle cell anemia, cystic fibrosis, and Huntington's disease. It also has the potential to improve the yield and quality of crops, which can help to address issues of food insecurity and environmental sustainability.

3. Jennifer Doudna's primary contribution is the co-development of CRISPR-Cas9, a gene-editing tool that has transformed the field of molecular biology. CRISPR-Cas9 allows scientists to make precise edits to the genome, which has a wide range of applications in fields such as medicine, agriculture, and biotechnology. Jennifer Doudna's work on CRISPR-Cas9 has earned her numerous awards and accolades, including the 2020 Nobel Prize in Chemistry.

Explanation:

your welcome

The bases οn the mRNA strand are cοmplementary tο the DNA strand template, meaning that they fοrm base pairs with the cοrrespοnding nucleοtides οn the DNA strand.

DNA (Deοxyribοnucleic Acid) is a mοlecule that cοntains the genetic instructiοns used in the develοpment and functiοning οf all living οrganisms. It is a dοuble-stranded, helical structure cοnsisting οf nucleοtides that are cοmpοsed οf a sugar (deοxyribοse), a phοsphate grοup, and a nitrοgenοus base (adenine, guanine, cytοsine, οr thymine).

Translatiοn begins at the start cοdοn which is typically AUG, a prοcess called initiatiοn.

Translatiοn ends at the stοp cοdοn οf the mRNA strand, which can be UAA, UAG, οr UGA, a prοcess called terminatiοn.

The bases οn the mRNA strand are cοmplementary tο the DNA strand template, meaning that they fοrm base pairs with the cοrrespοnding nucleοtides οn the DNA strand.

Hοwever, there are a few differences between the twο types οf nucleic acid, such as the use οf uracil (U) instead οf thymine (T) in RNA, and the fact that RNA is usually single-stranded while DNA is dοuble-stranded.

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One example of a professional athlete who experienced a recent injury and required taping and wrapping to return to play/train is Anthony Davis.

Professional athletes are the people who have natural talent, stamina and competitive drive.

One example of professional athlete who experienced recent injury and required taping and wrapping to return to play/train is Anthony Davis, a basketball player for the Los Angeles Lakers.

In February 2021, Davis suffered a calf strain and aggravation of Achilles tendon injury, which caused him to miss several games. When he returned to play, he was seen wearing kinesiology tape on his lower leg to provide support and stability to injured area. The tape helps to reduce pain, swelling and inflammation and also improving joint function and muscle activation. By using kinesiology tape, Davis was able to continue playing while recovering from his injury.

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The correct order to represent how organic nutrients reach the cells of the body from the digestive system and fuel cellular respiration are:

The process of how organic nutrients reach the cells of the body from the digestive system and fuel cellular respiration starts with the daily food consumption, which provides fuel and building blocks for the body.

The food is then broken down via the digestive system, and with the assistance of the circulatory system, the digestive system supplies nutrients and water to the cells. Inside the cells, fuel molecules are further broken down through glycolysis, the prep reaction, and the citric acid cycle, which eventually lead to the production of ATP through the electron transport chain embedded in the inner membrane of the mitochondria. Thus, the steps are in the correct order to show how organic nutrients are transformed into energy for the cells to use.

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The complete question is:

Digestive system to cells Place the following steps in the correct order to represent how organic nutrients reach the cells of the body from the digestive system and fuel cellular respiration. Rank the options below.

Large quantities of ATP are produced when electron carriers travel to the electron transport chain embedded in the inner membrane of the mitochondria.

The daily food consumption of an organism provides fuel and building blocks for the body.

Food is broken down via the digestive system.

Within a cell, fuel molecules are further broken down during the following steps: glycolysis, the prep reaction, and the citric acid cycle

With the assistance of the circulatory system, the digestive system supplies nutrients and water to the cells

Answer:

Gene therapy is a medical technique that aims to cure diseases by changing a person's genetic material. Our genes are like a set of instructions that tell our cells what to do. Sometimes, these instructions can be wrong, and that can cause diseases. Gene therapy is a way of fixing those mistakes.

The process of gene therapy involves introducing new or modified genes into a person's cells to correct the faulty instructions. Scientists use different methods to do this, but the most common one is to use a modified virus called a "viral vector." This virus is engineered to carry the new or modified gene and infect the target cells, inserting the new gene into their DNA. Once the new gene is in the cell, it can produce the correct protein that was missing or defective, which can cure the disease.

Gene therapy can be used to treat a wide range of diseases, including genetic disorders like cystic fibrosis or sickle cell anemia, cancer, and viral infections like HIV. However, it is still a new field, and there are many challenges to overcome, such as making sure gene therapy is safe and effective and developing better ways to deliver the therapeutic genes to the right cells.

Hope this clears up your question

Answer:

How can someonebe political

As long as the number does not exceed 1000, 10% is typically a reasonable maximum sample size. The thing that reacts to the independent variable's change is the dependent variable.

The exact steps or methods used to find, pick, process, & analyze information on a subject are known as research methodology. The research methodology of a research paper provides readers with the opportunity to determine the high external validity and reproducibility of a study.

Those that work in a discipline employ a system of concepts, strategies, and processes known as a project management methodology. The top techniques differ not only in terms of structure, but also in other ways.

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The distribution of starch in a leaf is closely related to the parts of the leaf where carbon fixation reactions take place. Starch accumulates in the mesophyll cells of leaves, which are responsible for carbon fixation through photosynthesis.

Starch is a carbohydrate that is produced as a result of photosynthesis and is stored in various parts of the leaf to provide energy for growth and development. The distribution of starch is directly related to the parts of the leaf where carbon fixation occurs. Starch accumulates in the mesophyll cells of leaves, which are responsible for carbon fixation through photosynthesis.

Starch accumulation is critical because it serves as a reservoir of carbohydrates that can be used to support other plant functions, such as growth, development, and energy production. Starch is stored in chloroplasts, which are organelles that contain the pigments responsible for photosynthesis. Carbon dioxide is fixed in the chloroplasts, resulting in the production of sugar, which is then converted to starch for storage.

The greater the rate of carbon fixation in the chloroplasts, the more starch will be produced, and the higher the accumulation in the mesophyll cells. The location of starch within the leaf can be determined by staining the leaf tissue with iodine, which produces a blue-black color when it comes into contact with starch.

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Heavy rainfall or plant removal may limit the amount of nitrogen, phosphorus, or calcium available to a specific ecosystem, but the amount of carbon available to the system is rarely a problem because A Organisms do not require a lot of carbon. As you will see, carbon is the central element in compounds required for life. An organic substance is a compound that is found primarily in living organisms. Organic molecules are the building blocks of organisms' cells and other structures, as well as the carriers of living processes. Because carbon is the most abundant ingredient in organic molecules, it is critical to living on Earth.

Carbon exists naturally as carbon-12, which accounts for nearly 99% of all carbon in the world, and carbon-13, which accounts for about 1%.and carbon-14, which accounts for a negligible portion of total carbon but is crucial in dating biological things. Plants require more than just carbon dioxide to flourish (melting point: 6,422 degrees Fahrenheit/3,550 degrees Celsius). As previously stated, they require carbon dioxide, water, and sunshine to convert light into sustenance. Actually, any light, not just natural sunshine, will serve. But only to sustain their everyday photosynthesis. Plant physiology is more complicated than that.

Explanation:

cross: FF X Ff

off spring look like: FF,Ff

All of the genotype will be: FF,Ff,FF,Ff

Dietary fats such as trans fats and saturated fats have both been linked to poor health outcomes.

Dietary fats of the saturated variety are normally solid at room temperature. It can be present in some plant-based foods like coconut and palm oil as well as in animal products like meat, dairy, and butter.

The fact that both saturated and trans fats are solid at room temperature is one of their main commonalities. Animal goods including meat, dairy, and butter as well as tropical oils like coconut and palm oil often include saturated fats. Vegetable oils that have been partially hydrogenated, which are utilized in many processed meals like baked goods, fried dishes, and snacks, frequently include trans fats.

Saturated and trans fats both have the potential to elevate levels of the "bad" LDL cholesterol in the blood, which has been related to an increased risk of heart disease. Also, they may contribute to bodily inflammation, which raises the risk of other chronic illnesses including diabetes and cancer.

It is advised to minimize consumption of saturated and trans fats and concentrate on ingesting more beneficial unsaturated fats, such as those present in nuts, seeds, and fatty fish, in order to lessen their detrimental impact on health.

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Answer:

its arteries  

Explanation:

because there is arteries in every canal

Answer:

A

Explanation:

The Haversian canals surround blood vessels and nerve fibers throughout the bone and communicate with osteocytes. The canals and the surrounding lamellae are called a Haversian system (or an osteon). A Haversian canal generally contains one or two capillaries and nerve fibers

The statement that should be included to establish a claim to back the thesis is option C: "The penalty a polluter must currently pay is in many cases, laughably insignificant." This statement provides evidence to support the argument that polluters should be held accountable for their actions by highlighting the inadequacy of current penalties for polluting. By including this statement, the writer is making a specific claim about the need for stronger consequences for polluters, which supports the overall thesis that polluters should be held accountable for their actions. The other options do not provide specific evidence to support the thesis.

Answer:

Sickle cell anemia is caused by a genetic mutation in the hemoglobin gene.

Explanation:

Hemoglobin is a protein in red blood cells that carries oxygen throughout the body. In sickle cell anemia, the mutation causes the hemoglobin to form abnormal, sickle-shaped cells instead of the normal round shape. These sickle cells are stiff and sticky, and they can block blood flow in the small blood vessels, leading to pain, infections, and organ damage. The mutation that causes sickle cell anemia is inherited from both parents, and it is more common in people of African descent but can also occur in other populations.

The correct answer is A. Fat is the preferred fuel for low- to moderate-intensity activities.

During low to moderate-intensity activities, the body relies on fat as the primary fuel source. This is because fat is a long-term energy source that can provide sustained energy for longer periods of time.

B. Fat is a good short-term fuel since the fat stores in the body are almost unlimited is not true. Fat is not a good short-term fuel source because it takes longer to break down and convert into energy.

C. Oxygen is not needed to use fat to generate ATP is not true. Oxygen is required to break down fat and convert it into ATP, which is the energy currency of the cell.

D. Sprinting is an activity that primarily relies on fat for fuel is not true. Sprinting is a high-intensity activity that primarily relies on carbohydrates for fuel. Carbohydrates are a quick and efficient source of energy that can be used during short-term, high-intensity activities.

therefore, The correct answer is A. Fat is the preferred fuel for low- to moderate-intensity activities.

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Hypotonic and isotonic.

The original was Hypotonic because it grew. The second is Isotonic because they stayed normal. If the cells shrunk, they would be Hypertonic.

The original solution was hypotonic, while the second was isotonic to the cells. The correct answer is option d.

In a hypotonic solution, the concentration of solutes is lower outside the cell than inside the cell. This causes water to move into the cell through osmosis, causing the cell to swell and potentially burst.

Over a semipermeable membrane, a solution is referred to as a hypotonic solution if it contains less solute than other solutions with the same solute concentration. Such a solution results in a reduction in the concentration of solutes and complete water flow within the cell. This results in edema breaking down.

In an isotonic solution, the concentration of solutes is the same inside and outside the cell, so there is no net movement of water and the cell does not swell or shrink.

A solution that has the same osmolarity, or solute concentration, as another solution is said to be isotonic. Water will flow equally into and out of either solution if a semipermeable membrane is used to separate the two. We can say that the net flow is the same because the flow in and out is equal.

Therefore, the correct answer is option d. hypotonic; isotonic.

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During yeast fermentation lab, glucose shows a higher rate of fermentation than starch as : starch is a polysaccharide.

During the yeast fermentation, glucose is converted to ethanol and carbon dioxide by the action of yeast enzymes. Starch is a complex carbohydrate that is made up of many glucose units linked together in chain. In order for yeast to ferment starch, the starch must be broken down into component glucose molecules, which takes time and requires additional enzymes.

Therefore, glucose shows higher rate of fermentation than starch because it is already in the form of simple sugar that can be readily metabolized by  yeast. Starch, being a polysaccharide, is more complex and hence requires more processing before it can be used by yeast for fermentation.

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Answer:

It's A!

Explanation:

Option A is the correct answer because it correctly describes the information provided in the statement about the lobster's diet, and it is consistent with the general patterns of feeding seen in many other species.

Why it's (likely) not the other options:

Option B, "Many probably feed mostly within their own trophic level," is not supported by the information given. The statement mentions that a lobster's diet includes a variety of organisms from different trophic levels, so it is not accurate to say that they feed mostly within their own trophic level.

Option C, "Those in the top trophic level are the most numerous," is also not supported by the information given. The statement mentions the different types of organisms that lobsters eat but does not provide any information about the abundance or distribution of these organisms in the ecosystem.

Option D, "Those in the bottom trophic level have the most predators," is not directly relevant to the information provided in the statement about the lobster's diet. While it is true that organisms at the bottom of the food chain are often the most heavily preyed upon, the statement does not provide any information about predator-prey relationships in the ecosystem.

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Modern fish are a diverse group that are typically split into three groups: jawless fish (class or superclass Agnatha, approximately 75 species including lampreys and hagfish)

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Answer:

B. Eukaryote.

Explanation: I am not 100%, but I do believe this is the answer.

The length of the side of each of the smallest squares on your Hemocytometer is 50 micrometers.

The hemocytometer (or haemocytometer) is a counting-chamber device that was initially created for counting blood cells. 

Louis-Charles Malassez designed the hemocytometer, which consists of a thick glass microscope slide with a rectangular depression that produces a precise volume chamber. This chamber has a laser-etched grid of perpendicular lines. The gadget is meticulously built such that the region limited by the lines and the depth of the chamber are both understood. It is therefore feasible to count the number of cells or particles in a certain volume of fluid by watching a defined region of the grid, and hence compute the concentration of cells in the fluid overall, by observing a defined area of the grid. The Neubauer counting chamber is a popular type of hemocytometer.

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Answer: Cytoplasm

Explanation: