What happens to an enzyme when a competitive inhibitor binds to it?.

Answer:

It Should Be D

Explanation:

Because if you put it in a diagram like in the picture dulow you will see all of the have 1 big P and one small p

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The p-value for z = 2.0146 is P (Z > 2.0146) = 0.0222.  there is sufficient evidence to suggest that the proportion of deaths due to heart attack during Corona infection is greater than the proportion before Corona.

Proportion of deaths due to heart attack in India before Corona infection was 28.9%

Medical researcher believes that the deaths due to heart attack has increased during Corona infection due to non-availability of ICUs. A medical researcher randomly selected 200 deaths in a city and found that 73 were died due to heart attack. Significance level, α=0.05. We need to test the medical researcher's claim of increased deaths due to heart attack during Corona infection. Let p be the proportion of deaths due to heart attack during Corona infection.

Null Hypothesis H₀: p ≤ 0.289 (Proportion of deaths due to heart attack during Corona infection is less than or equal to the proportion before Corona)

Alternate Hypothesis H₁: p > 0.289 (Proportion of deaths due to heart attack during Corona infection is greater than the proportion before Corona)

We will use a one-tailed z-test for testing the hypothesis at 0.05 significance level.

z = (phat - p) / √(p(1-p)/n)

where phat = 73/200 = 0.365

n = 200

p = 0.289

z = (0.365 - 0.289) / √ (0.289(1-0.289)/200) = 2.0146

The p-value for z = 2.0146 is P (Z > 2.0146) = 0.0222.

Since the p-value (0.0222) < α (0.05), we reject the null hypothesis.

Therefore, there is sufficient evidence to suggest that the proportion of deaths due to heart attack during Corona infection is greater than the proportion before Corona.

Yes, the data suggests that the deaths due to heart attack has increased as believed by medical researcher.

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Answer:

well that is possibly a zygote

The term used to describe male and female anatomical structures that derive from the same embryological structures is "homologous".

This term refers to the similarities in the structure and function of different organs or structures, despite differences in their external appearance or function. In the case of male and female anatomical structures, they are homologous because they are derived from the same embryological structures, but may have different functions or external appearances in males and females.
For example, the male and female are homologous structures because they develop from the same embryonic tissues, but have different external appearances and functions.
Understanding homologous structures is important in fields such as evolutionary biology, as it can provide insight into the evolutionary relationships between different species. In the case of male and female anatomy, studying homologous structures can also help us understand the ways in which biological intercourse is determined and how it affects development and function.

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Answer: inertia

Explanation:

a property of matter by which it remains at rest or in uniform motion in the same straight line unless acted upon by some external force

A double-stranded DNA molecule with three guanine and five thymine nucleotides (on one 5' to 3' strand) has 16 nucleotides in total.

A nucleotide is the monomer constituting DNA or RNA biopolymer molecules.

Each nucleotide consists of the following:

A double-stranded DNA molecule posseses two strands of DNA made up of nucleotides.

According to this question, a double-stranded DNA molecule has three guanine and five thiamine nucleotides.

This means that each stand of DNA has 8 nucleotides, hence, the double-stranded DNA will have 16 nucleotides in total.

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The option that can lead to cancer is a disruption in the cell cycle (option A).

Cancer is a disease in which the cells of a tissue undergo uncontrolled (and often rapid) proliferation.

Cell cycle is the life cycle of eukaryotic cells from a quiescent beginning, growth, duplication of DNA followed by mitosis and division. The period of time in the cell cycle when nothing is happening is known as the G0 phase i.e. inactivity.

Cancer is a genetic disorder. It happens when genes that manage cell activity mutate and create abnormal cells that divide and multiply, eventually disrupting how the body works.

Therefore, disruption or alteration in the normal procedure of the cell cycle can lead to cancer.

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Arthropods is not a vertebrate. The correct option is e.  

Arthropods, which include insects, spiders, crustaceans, and other related organisms, are invertebrates. Invertebrates are animals that lack a vertebral column or backbone. Instead of a vertebral column, arthropods have an exoskeleton, segmented bodies, and jointed appendages. They belong to the phylum Arthropoda, which is the largest phylum in the animal kingdom.

On the other hand, options a, b, c, and d (fishes, reptiles, mammals, and amphibians) are all vertebrates. Vertebrates are animals that possess a vertebral column or backbone, which is an internal skeletal structure that provides support and protection to the spinal cord.

Fishes are aquatic vertebrates with gills and fins, and they include a wide range of species such as bony fish and cartilaginous fish.

Reptiles are cold-blooded vertebrates characterized by their scaly skin, laying of amniotic eggs, and typically having four legs or being legless.

Mammals are warm-blooded vertebrates that have mammary glands for milk production, hair or fur, and a specialized internal system for regulating body temperature.

Amphibians are vertebrates that typically undergo metamorphosis from aquatic larval forms to terrestrial adults, and they have moist skin and usually lay eggs in water.

Therefore, the correct answer is e.

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Answer:

The important part in controlling spindle fiber is the centrosome.

The correct answer to this question is option D. The troponin and tropomysin must slide relative to each other, shortening the sarcomere.

Myelin sheath is a fatty, white substance that is insulating in nature and forms a covering around nerve fibers in the peripheral nervous system (PNS).

The functions of the myelin sheath are as follows:

1. It protects nerve fibers from damage

2. It provides insulation to nerve fibers, which helps to increase the speed of transmission of nerve impulses.

3. The myelin sheath also helps in the regeneration of nerve fibers.

4. It enhances the signal propagation speed by preventing the ion flow out of the neuron. The process of sliding relative to each other by troponin and tropomyosin proteins is a part of muscle contraction and does not have any association with the myelin sheath.

Thus, option D is the correct answer.

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The term used in the treatment of tumors with radiation is "radiation therapy," also known as "radiotherapy" or "radiation oncology."

Radiation therapy is a medical procedure that uses high-energy radiation, such as X-rays or protons, to target and destroy cancer cells within the body.

Radiation therapy is a common treatment modality for various types of tumors, both benign and malignant. It works by damaging the DNA of cancer cells, which hinders their ability to divide and grow. The goal of radiation therapy is to selectively target and kill cancer cells while minimizing damage to surrounding healthy tissues.

Radiation therapy can be delivered externally or internally. External beam radiation therapy involves directing radiation beams from a machine outside the body towards the tumor. This is the most common form of radiation therapy. Internal radiation therapy, also known as brachytherapy, involves placing radioactive material directly into or near the tumor site, delivering a high dose of radiation to the affected area.

Radiation therapy is often used as a standalone treatment or in combination with other modalities like surgery or chemotherapy, depending on the type, location, and stage of the tumor. The specific radiation treatment plan is carefully tailored for each individual patient, considering factors such as tumor size, location, and overall health.

The use of radiation therapy requires a multidisciplinary team of healthcare professionals, including radiation oncologists, medical physicists, dosimetrists, and radiation therapists. They collaborate to develop a treatment plan, ensure accurate delivery of the prescribed radiation dose, and monitor the patient's progress throughout the course of treatment.

It's important to note that the decision to use radiation therapy as a treatment option, as well as the specific approach and dosage, is made by healthcare professionals based on an individual's unique medical situation.

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Answer:

True

Explanation:

The members all have seven different protein segments that cross the membrane, and they transmit signals inside the cell through a type of protein called a G protein. When its ligand is not present, a G protein-coupled receptor waits at the plasma membrane in an inactive state.

Answer:

ناسحتصس حساب سكسوسشت كمسنصو م٩سس

The correct statements are:Ctenophores are filter feeders whereas cnidarians are carnivores.Cnidarians and Ctenophores are two phyla of animals in the Kingdom Animalia that exhibit significant diversity in form and lifestyle.

Cnidarians and Ctenophores both produce and use cnidocytes for prey capture. Cnidocytes are specialized cells with thread-like filaments that function in prey capture and defense.Both cnidarians and ctenophores exhibit two distinct body forms: a polyp and a medusa. A hydra or sea anemone displays the body form whereas a jellyfish displays the medusa body form.

Ctenophores swim using comb rows whereas cnidarians typically swim using muscle contractions.Cnidarians have an incomplete digestive system, whereas ctenophores have a complete digestive system.

The correct statements are:Ctenophores are filter feeders whereas cnidarians are carnivores.Cnidarians have an incomplete digestive system whereas ctenophores have a complete digestive system.Both cnidarians and ctenophores produce and utilize cnidocytes for prey capture.

Ctenophores swim using comb rows whereas cnidarians typically swim using muscle contractions.A hydra or sea anemone displays the polyp body form whereas a jellyfish displays the medusa body form.The correct answer is option A, C, D, and E.

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By using the vibrations of a bristle on a piece of soot-covered paper, Leon Scott's phonautograph, developed in 1857, had shown how ambient sound waves could be traced as a visual image.

When objects vibrate, pressure waves are created that our ears can detect as sound. These waves can be recorded when they move a microphone's membrane, and they can be reproduced by the amplified vibrations of a speaker's membrane.

Sound waves in the air are captured by recording equipment, which then transform them into electrical signals or digital data that can be saved on physical objects like records, CDs, and computer hard drives.

To replicate the original sound, playback equipment turns the recording process on its side.

Therefore, Édouard-Léon Scott de Martinvillefirst captured sound using a bristle and a coated cylinder.

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The 3-cell model, ENSO, and the MJO are interconnected phenomena that impact each other and play crucial roles in shaping regional and global climate patterns. Topography and ocean currents are two local influences on climate that can be more influential than a location's position in the 3-cell model. ENSO and the MJO do impact hurricane activity, with El Niño and the active phase of the MJO suppressing hurricane activity, while La Niña and the inactive phase of the MJO can enhance it.

The 3-cell model, El Niño Southern Oscillation (ENSO), and the Madden-Julian Oscillation (MJO) are all related to each other and impact each other in different ways.

1. The 3-cell model refers to the global atmospheric circulation pattern that divides the Earth into three cells: the Hadley cell, the Ferrel cell, and the Polar cell. These cells are responsible for the movement of air and transfer of heat from the equator to the poles. They play a significant role in determining regional climate patterns and wind systems.

2. El Niño Southern Oscillation (ENSO) is a climate pattern that occurs in the tropical Pacific Ocean. It involves the interaction between the ocean and the atmosphere, resulting in a warming or cooling of sea surface temperatures in the eastern tropical Pacific. This phenomenon has a major impact on weather patterns worldwide, affecting rainfall distribution and temperatures.

3. The Madden-Julian Oscillation (MJO) is an eastward moving disturbance that travels around the equator. It is characterized by a large-scale, eastward-moving area of enhanced and suppressed rainfall. The MJO has a significant influence on tropical weather and can affect precipitation and atmospheric circulation patterns in various regions.

These three phenomena are related in that they all involve large-scale atmospheric and oceanic processes. For example, during an El Niño event, the warming of sea surface temperatures in the eastern tropical Pacific can disrupt the normal trade winds and atmospheric circulation patterns associated with the 3-cell model. This disruption can, in turn, affect the behavior and strength of the MJO.

b) Two local influences on climate that can be more influential than a location's position in the 3-cell model are topography and ocean currents.

Topography refers to the physical features of the land, such as mountains, valleys, and coastlines. These features can greatly influence climate by affecting the distribution of precipitation, temperature, and wind patterns. For example, mountain ranges can block the flow of air masses, leading to differences in rainfall on the windward and leeward sides.

Ocean currents play a crucial role in climate regulation. They transport heat from the tropics to higher latitudes and influence regional temperature and precipitation patterns. For instance, the Gulf Stream, a warm ocean current, influences the climate of the eastern coast of the United States, making it warmer than other regions at similar latitudes.

c) Yes, ENSO and the MJO can impact hurricane activity.

During an El Niño event, the warming of sea surface temperatures in the eastern tropical Pacific can alter atmospheric conditions, leading to the suppression of hurricane activity in the Atlantic Basin. El Niño creates stronger wind shear, which makes it difficult for hurricanes to form and intensify. On the other hand, La Niña, the cold phase of ENSO, can enhance hurricane activity in the Atlantic.

The MJO can also influence hurricane activity. When the MJO is in its active phase, it can create more favorable conditions for tropical storm development, such as increased moisture and decreased wind shear. Conversely, during the inactive phase of the MJO, hurricane activity tends to be suppressed.

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The photophosphorylation is the synthesis of ATP from ADP and phosphate in the plants using the light energy absorbed during the photosynthesis process.

Answer:

Explanation:

Law enforcement establishes a crime scene of what happened.

The correct sequence of pre-embryonic structures formed is: d. zygote (made up of a single cell), morula (made up of 16 cells), blastocyst (made up of 70-100 cells).

The pre-embryonic period, known as the germinal phase, is the first and shortest phase of embryonic development. It lasts from fertilization to the second week of the embryo's life. In this phase of embryo development, the zygote repeatedly self-replicates.

Fertilization, union of a sperm nucleus, of paternal origin, with an egg nucleus, of maternal origin, to form the primary nucleus of an embryo. In simple words, the fusion of a haploid male gamete (spermatozoa) and a haploid female gamete (ovum) to form a diploid cell, the zygote, is called fertilization.

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Answer:

nitrogen and carbon

Explanation:

Answer:

co2 and oxygen

Explanation:

Answer:

Explanation:The potential energy is converted to kinetic energy in the process. But I see no transfer of energy between the earth and the body.

And how does energy transfer takes place in case of negative work ? When a body is moved across a surface which has friction, the friction does negative work. Does it mean that a sort of energy transfer occurs between the surface (source) and the body (object

Endocrine-disrupting chemicals (EDCs) are synthetic or natural compounds that interfere with the normal function of the endocrine system, which regulates physiological processes such as growth and development, metabolism, and reproductive functions.

Bisphenol A (BPA) is a common EDC found in many plastic products, such as food containers, water bottles, and toys. BPA can cause toxicity in humans and animals by mimicking or blocking the action of natural hormones, such as estrogen, androgen, and thyroid hormones, leading to hormonal imbalances and disruptions in the normal physiological processes regulated by these hormones.

BPA can bind to hormone receptors, which can activate or inhibit the receptor's signaling pathway, leading to altered gene expression, and disruption of cellular processes.

Exposure to BPA has been linked to a range of adverse health effects, including reproductive and developmental abnormalities, metabolic disorders, and cancer. The effects of BPA exposure depend on the timing, duration, and dose of exposure, as well as the susceptibility of the individual and the developmental stage of the organism.

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Answer:

there must be a pre-existing chain of nucleotides

Explanation:

So RNA primers are used for initiation of new DNA chains.

RNA primer is short piece of RNA, synthesised at the end of the new strand with the help of DNA specific RNA polymerase enzyme called primase and primers provide free -OH for DNA polymerase to start polymersing. leading template strand requires primer only ones. But lagging template strand requires many primers. Once primer is ready DNA Pol(III) will come & start adding deoxyribonucleotide to the  -OH of primer by complementary basepairing. Two nucleotides link each other by phosphodiester bond. The daughter DNA for template is synthesised continuously, Therefore called leading strand. DNA polymeraseIII has Exonuclease activityIt can add nucleotides in the  direction. Replication is discontinuous on the other template with polarity because only a short segment of DNA strand can be built in direction due to exposure of a small stretch of template at one time.

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Answer/Explanation: How and when does lake turnover happen? Due to seasonal changes in sunlight intensity, surface water temperature begins to transition in the spring and fall. In the spring, the water surface warms. This causes the temperature of the top and bottom layers of the lake to equalize.

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Answer:

Shield volcanoes have low profiles and broad distributions of lava flows while composite volcanoes can have smaller channels of rising magma called di.

Explanation:

Shield volcanoes have low profiles and broad distributions of lava flows while composite volcanoes can have smaller channels of rising magma called di.

The correct answer is b. The similarity in the cartilaginous endoskeletons of hagfish, lampreys, sharks, and rays can be explained by homology, not homoplasy.

The correct answer is b. The similarity in the cartilaginous endoskeletons of hagfish, lampreys, sharks, and rays can be explained by homology, not homoplasy. Homology refers to the similarity in structures due to a common ancestry, whereas homoplasy refers to similarity in structures due to convergent evolution. While it may seem intuitive that the cartilaginous skeletons of sharks and rays are homoplasic with those of hagfish and lampreys, recent evidence suggests that all jawed vertebrates, including sharks and rays, descended from cartilaginous placoderms, making their skeletons homologous to those of hagfish and lampreys. The fossil record is not clear on this issue, and analyzing phylogenetic trees alone cannot resolve this question. Therefore, understanding the evolution of cartilaginous endoskeletons in vertebrates requires multiple lines of evidence.

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Answer:

dendritic processes and spines

Explanation: