According to the cell theroy all cells are arise from the division of preexisting cells ture or false

The answer is B pharynx

:)

The correct answer is DNA helicase.  

DNA helicases help in the unwinding of DNA. They play an essential function at the time of DNA replication as they distinct the double-stranded DNA into single strands, and permit each strand to undergo copying or duplication.  

It works by melting the hydrogen bonds, which holds the DNA into the double helical composition. The region of the DNA where the DNA helicase has unzipped the DNA is called replication fork.  

Wait when is that due??

I cannot provide the answer key, but I can help you understand the concepts and steps in the photosynthesis lab.

Sorry, but I cannot provide an answer key for a specific lab activity as it would violate academic integrity and the purpose of the lab is for students to engage in the process of scientific inquiry and discovery.

However, I can help you understand the concepts and steps involved in the photosynthesis lab, so you can find the answers on your own.

In the photosynthesis lab, students typically use a snail, an Elodea plant, and a light source.

They observe changes in the oxygen and carbon dioxide levels using a dissolved oxygen probe and a carbon dioxide probe, respectively. Through this experiment, students learn how photosynthesis produces oxygen and consumes carbon dioxide.

If you have any specific questions about the photosynthesis lab, feel free to ask, and I'll be happy to help!

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Correct answer: Subtract the p from the s

The study of earthquake is known as seismology, it study its effect and waves form. The two seismic waves studied in earthquake are P wave and S wave. P-wave is known as primary wave and S-wave is known as secondary wave.

P-wave are fastest wave and it travels through solid, liquid and gas. S-wave are slower as compared to p-wave and are second to arrive, it could pass only through solid and could not pass through liquid and gas. They travel in perpendicular direction to the vibration of the particles.

Example: Suppose the P-wave arrives at t = 1.0 s and the S-wave arrives at t  = 6.0 s, then the difference between the arrival time of the P-wave and the S-wave can be calculated as:

Time Difference = 6.0 −1.0=5.0 s

The correct answer is option Subtract the P wave from the S wave.

In a seismographic centre, there are two types of waves, which are recorded, these are the P and the S waves. The P waves are the primary waves and travel fast, and the S wave is the secondary wave travels slow. The time of the approaching of the S wave increases as the as distance from the epicentre increases.  The time lag between the P and the S wave determines the t. So, it can be recorded by subtracting the time of the arrival of the P wave from the timing of the arrival of the S wave.

I think C because scientific research can make them humans do

the answer is B because i found out the hard way

Answer:

By 1900, Fingerprint was the evidence which was collected at crime scenes to help positively identify suspects by one particularly unique trait.  No two people can have the same type of fingerprints. It is a unique characteristic which is even not common among identical twins. Therefore, was considered as an important evidence for identification of suspects and linking them with the scene of offence. In 1904, the city of St.Louis, Missouri used fingerprint evidence for the first time for criminal identification.

Correct answer: False

A primary source provide the first hand proof and the original information of the event, object, person or work.

Example: Research data, e.g. public opinion polls, speech

Secondary source is that source of information that is not performed or collected by the individual but it is taken from old information. It is updated by someone who is not participation in the event or the research.

Example:  Library, ebook, reviews.

In real life examples cytoskeleton can be :

If we take cell as a factory, then cytoskeleton is like a building frame of that factory because it provides mechanical support that enables cells to carry out essential functions like division and movement.

If we take cell a whole  society then cytoskeleton is like roads to that society because it provides a path for the movement of other organelles and materials.

The best solution is - B. replacing fossil fuels with renewable energy sources.

By replacing the fossil fuels with renewable energy sources the enormous release of carbon dioxide into the atmosphere will be stopped and minimized because the renewable energy sources are not emitting Greenhouse gasses into the atmosphere.

Unfortunately, this type of energy sources still can not satisfy the demand, and also big problem represents the economic justification of their usage, and lots of countries are not willing to lose profit in order to protect the environment.

replacing fossil fuels with renewable energy sources

The evidence to support the student's prediction would come from the growth measurements of the two plants over 28 days. If Plant A, which is watered and fertilized, consistently grows taller than Plant B, which is only watered, this would support the hypothesis that fertilizer aids plant growth.

In this experiment, the evidence to support the student's prediction that fertilizer helps plants grow taller would come from comparing the measured growth of the two plants over the 28 day period.

For Plant A, which is both watered and fertilized, the growth is expected to be more substantial due to the additional nutrients provided by the fertilizer. Plant B, which is only watered, serves as a control in this experiment and its growth will provide a baseline to compare against the growth of Plant A.

The data collected through these measurements will provide the scientific evidence necessary to either confirm or refute the student's prediction. If Plant A consistently grows taller than Plant B over the 28 day period, this would support the prediction that fertilizer leads to taller flowering plants. If no significant difference in growth is observed, this would suggest that the presence of fertilizer does not significantly affect plant height.

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The nucleus is an organelle found in eukaryotic cells. Inside its fully enclosed nuclear membrane, it contains the majority of the cell's genetic material. This material is organized as DNA molecules, along with a variety of proteins, to form chromosomes.

The cell nucleus is a membrane-bound structure that houses the cell's genetic information and regulates its growth and reproduction. It is the command center of a eukaryotic cell and is usually the most visible organelle in the cell, accounting for about 10% of the cell's volume.

When viewing a cell image, the nucleus is one of the most visible parts of the cell. The nucleus is located in the center of the cell and contains all of the cell's chromosomes, which encode the genetic material.

It contains the cell's genetic information and regulates its growth and reproduction.

The nucleus has been defined as a membrane-bound structure that contains a cell's genetic material.

The structure of nucleus includes:

Thus, above mentioned is the structure of the nucleus along with the function of each part.

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A tropical dry rain forest is Warm and gets little rain, less than tropical rainforest. Found in places like Mexico, centural India, southeastern africa, indochina, madagascar, eastern bolivia, and other places..

Tropical rain forests typically rain all year around in locations of South America, Western Africa, and Southeast Asia.

I donot know if this is what you meant to ask or to answer a correct sentence pair but I hope this helps. :)

Thyroxine is an important hormone released into the bloodstream by the thyroid gland in the body. When tyroxine is released into the blood stream, it moves through certain organs such as the kidney and liver, where most of it is changed to an active form known as triiodothyronine. Thyroxine perform important roles in brain development, heart and digestive functions, bone maintenance, controlling muscle and metabolic rate of the body.

Collagen and elastic fibers make up dense connective tissue. This type of tissue, with its combination of strength and flexibility, is notably found in tendons and ligaments.

Collagen and elastic fibers form a crucial component of a type of connective tissue known as dense connective tissue. They combine to create the dense, fibrous connective tissue found particularly in areas where flexibility and strength are required, such as tendons and ligaments. Collagen provides strength and firmness while elastic fibers impart flexibility to the tissue. Hence, the combination of these two results in a tough, flexible tissue capable of withstanding considerable mechanical stress.

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Answer:

A. energy obtained from coal --------------> Non Renewable

B. energy obtained from burning plant waste. --------------> Non Renewable

C. energy obtained from water springs inside the Earth. ---------Renewable

D. energy obtained from natural gas.------------Non Renewable

Explanation:

Renewable energy resources are those which can be used again and again. This reuse is possible because either they are present in ample amount or they are produced in a very short span of time.  

While a non-renewable energy resource cannot be used again and again. Also if they are recreated,  they take millions of years which in other way round lead to their depletion.  

Based on the above explanation, the classification is as follows -

A. energy obtained from coal --------------> Non Renewable

B. energy obtained from burning plant waste. --------------> Non Renewable

C. energy obtained from water springs inside the Earth. ---------Renewable

D. energy obtained from natural gas.------------Non Renewable

The classification of the energy sources is as follows:

A. energy obtained from coal: Non renewable

B. energy obtained from burning plant waste: Non renewable

C. energy obtained from water springs inside the Earth: Renewable

D. energy obtained from natural gas:Non renewable

Renewable energy resources are those energy sources that are gotten from natural materials which can be used and reused again. Examples include water, soil and plants.

Non renewable energy resources are those energy sources that are artificially gotten and they can't be renewed. Examples include coal, oil,steel aluminium.

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If the marine plant is placed in a freshwater environment, then the cells will undergo plasmolysis.  

The plants found in the freshwater surroundings are adjusted for osmoregulation in hypotonic environments. If one place this type of plant in a marine environment, that is, one with a greater concentration of dissolved salts, then the environment is considered as hypertonic environment. The cells of the plant will lose water and will go through the process of plasmolysis.  

The Cell will burst or swell due to the large amount of water enters in plan call.

It’s C, a microscope can see the blood cells since they are so small. A barometer is used to measure atmospheric pressure while a micrometer measures spaces and thicknesses.

Answer:

The answer is C. Microscope. Microscopes are known for allowing the naked eye to see things.

Explanation:

Answer:

The correct answer is C. Mammals can produce milk for their offspring.

Mammals are the members of class mammalia. The word mammalia was derived from Latin word "mamma" which means "breasts" as they had a unique feature i.e. presence of mammary glands.

These glands were evolved from a special types of sweat glands and became specialized in the production of milk, especially in females.

They help the mothers in providing nourishment to the offspring.

Other features of mammals may include four chambered heart, hair and fur, three middle ear bones, etc.

I just took a test with this question and the answer is:

the correct answer is missense mutation

Answer:

c. increased waste production

Explanation:

Scientific advances are a boon to mankind because they really make our life easy, fast and worth living. But increased waste production is the greatest disadvantage of scientific advances. In recent years, various industries have been established to meet the ever increasing demands of scientific equipments, various chemicals, goods required for use in day to day life etc. After manufacturing goods these industries are left with a lot of toxic and hazardous waste products which they either dump in nearby water bodies or open land which leads to soil pollution, water pollution and air pollution.

Answer:  

Aerobic respiration is a process glucose produces energy in the presence of oxygen. In this process glucose is oxidized to produce carbon dioxide, water and energy in the form of ATP.

C₆H₁₂O₆ + 6O₂ = 6CO₂ + 6H₂O + Energy (ATP)

Three main processes that make up aerobic respiration are:

1. Glycolysis:  it takes place in the cytosol of the cell. Here, glucose is oxidized to form three carbon molecule pyruvate. This process produces energy in the form of 2 ATP molecules and 2 NADH molecules. These NADH molecules carries 2 energy electrons these electrons are utilized by the electron transport chain.

2. Kreb's cycle: it takes place in the cytoplasm and mitochondria of the cell. Here, the molecules of pyruvate produced during glycolysis is utilized to produce ATP.

3. Electron transport chain:  glucose is not entirely converted into ATP. The NADH molecules produce during glycolysis  produces 2 energy electrons these electrons are taken up by electron transport chain in the mitochondria inner matrix. A proton gradient develops across the matrix after donation of electrons to electron transport chain. This gradient in turn produces energy in the form of ATP.

Aerobic cellular respiration has three stages: glycolysis (anaerobic process), the Krebs cycle, as well as oxidative phosphorylation.

Aerobic respiration is a chemical process that produces energy from carbohydrates by using oxygen. Cell respiration, aerobic metabolism, and oxidative metabolism are other terms for the same thing.

The citric acid (Krebs) cycle, an electron transport chain, and chemiosmosis are the four stages of aerobic respiration.

Aerobic respiration produces energy, which is used to power all cellular processes. The reactions produce ATP, which is then used to power other life-sustaining processes like growth, repair, and maintenance.

Glycolysis is a cytoplasmic pathway that produces energy while converting glucose into two three-carbon compounds.

The tricarboxylic acid (TCA) cycle, also known as the Krebs cycle or the citric acid cycle, is the primary source of energy for cells and is required for aerobic respiration to occur.

Oxidative phosphorylation is the method by which ATP generation is encompassed to the movement of electrons via the mitochondrial electron transport chain as well as the associated grabbing of oxygen.

Thus, these are the three main processes that makes up aerobic respiration.

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I cannot find the propositions if it is a MCQ, so I will tell what a bacterial mutualism is:

Mutualism is an exchange between species (two or more) in which the mixed organisms profit from this exchange. Unlike commensalism, the associated species adapt, because the modification of one can affect the survival and reproduction of the affiliated species.

Many mutualistic bacteria live and develop in us, for example, the intestinal flora synthesizes vitamin K, a vitamin that is necessary for the absorption of our food. This same intestinal flora also hinders the proliferation of pathogenic bacteria as well as that of commensal bacteria potentially dangerous.

Bacteria and the human both get benefit from each other and this relation is mutualism. Bacteria stay inside nose, mouth, intestines, and many more areas of the body surface. They help human by giving response to pathogenic bacteria for protection of immune system.

They metabolize nutrients, vitamin production and wastes process in human’s digestive system. On the other hand, human provides them place to live. These above best demonstrates mutualism between bateria and humans.    

the answer is chemical.

hope this helps!!!

The anglerfish will exhibit healthy health rating.  

The anglerfish refers to a bony fish named after its featured mode of predation. The species of the fish occur globally, most of the anglerfish are benthic, that is, they dwell close to the floor of the sea. At the depth of deep-sea, the pressure is very high, however, various creatures exhibit no issue living there.  

In the absence of gas-filled spaces like swim bladder or lungs, the species in the great deep sea are less influenced by the pressure than one can think. Though the species adapted to such pressure conditions, when being brought to the surface of the sea may encounter with certain metabolic issues. Thus, increasing the pressure will cause no harm to the health of anglerfish.  

Answer:

(A) Gravity pulls gas and dust together.

Explanation:

Answer:

Gravity pulls gas and dust together.

Explanation:

nebula (as the first stage is called): the first stage before the birth of star is seen by a slow rotating, clouds of cold gas and dust. the nebula condenses into a huge globule of gas and dust which shrink under its own gravity

Answer:

Answer:

B. Erosion and D. Index fossils are geologic features that help scientists to determine relative ages of rocks by their positions.

Explanation:

The relative ages of rocks is calculated by comparing them to the ages of other ones.  It involves methods namely intrusions, index fossils and cross-cutting relationship.

Relative age is determined by comparison of the rock with other rocks. It can be determined by the position of the rock.

There are two ways to determine rock age, these are relative dating and absolute dating.

This involves cross-cutting relationships, intrusions and index fossils.

Thus, B, C and D is the correct option.

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the correct answer you are looking for would be letter B. formation of geological layers

hope this helps :)

The correct answer is option B, that is, the formation of geological layers.  

The flow of heat from the interior of the Earth to the surface is predicted in term of terawatts and it comes from two prime sources and it comes in approximately equal concentrations, that is, the radiogenic heat generated by the radioactive decay of isotopes in the crust and the mantle, and the accretion heat or the primordial heat left over from the creation of the Earth.  

Apart from this, the gravitational compression refers to a procedure in which gravity functioning on the mass of an object, compresses it, minimizing its size, and enhances the density of the object. At the center of a plant, the gravitational compression generates heat by the mechanism of Kelvin-Helmholtz.  

The generation of the geological layers refers to the fundamental unit of lithostratigraphy. It is a formation comprising of some amount of rock strata, which exhibits a comparable facies, lithology, or other identical characteristics. However, the process does not directly contribute to Earth's high internal temperatures.  

Certain vitamins might not be synthesized and foods might not break down as well.

The use of antibiotics can disrupt Sally's gut flora, leading to digestive issues and increased susceptibility to infections like chronic diarrhea due to an overgrowth of antibiotic-resistant bacteria. Treatments such as fecal transplants have been employed to restore the natural balance of gut microbes.

Sally's digestive function is likely to be affected by the antibiotics due to the disruption of her gut flora. Antibiotics are known to kill bacteria, including the beneficial microbes that assist with digestion and protect against infections. The loss of these normal gut bacteria can lead to an overgrowth of antibiotic-resistant bacteria like Clostridium difficile, causing severe gastric issues such as chronic diarrhea and may contribute to other health problems like yeast infections. To address these issues, treatments like fecal transplants have been utilized to reestablish a healthy intestinal microbial community.

Antibiotics are crucial in fighting off harmful bacteria that cause illness; however, they do not distinguish between harmful and helpful bacteria. This can result in the harmful side effects like diarrhea and yeast infections that Sally is experiencing. It is important for antibiotics to be prescribed and taken correctly to minimize the negative impact on normal microbiota.

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2 to counteract the protons