What holds bones together?

Answer:

I would say an australian shephard

Explanation:

Answer:

The safety an​d effectiveness of vaccines​ are under constant study. Because vaccines are designed to be given routinely during well-child care visits, they must be extraordinarily safe. Safety testing begins as soon as a new vaccine is contemplated, continues until it is licensed, and is monitored indefinitely after licensure.

Explanation:

Answer:

well

Explanation:

Before a vaccine is ever recommended for use, it’s tested in labs. This process can take several years. FDA uses the information from these tests to decide whether to test the vaccine with people.

During a clinical trial, a vaccine is tested on people who volunteer to get vaccinated. Clinical trials usually start with 20 to 100 volunteers, but eventually include thousands of volunteers. These tests can take several years and answer important questions like:

Answer:

The complimentary code is TATCCG.

Explanation:

In the Arabidopsis which is mutant for cdk-1, the central cell of the gametophyte is not fertilized and so the endosperm will not form.

Arabidopsis one of the model organisms which is used in the studies in the field of plant biology as the changes in this plant can be observed very easily. It is also the first plant which has its entire genome sequenced.

In plants, A-type cyclin-dependent kinase or the CDKA, which is a homologue of the cdc2, plays an important role throughout the cell cycle. If there is a loss-of-function mutation in the CDKA;1; which encodes the only Arabidopsis CDKA, eventually results in the lethality of the male gametophyte. The central cell of the gametophyte will not be fertilized and this will lead to no formation of the endosperm.

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The substance, needed for protein synthesis, that is carried into a leaf from the stem is nitrate. Nitrate is an essential nutrient that plants use to produce amino acids and proteins. It is a part of the nitrogen cycle and is used in chloroplasts to create essential proteins.Option B is correct

The process of protein synthesis takes place in chloroplasts of the leaves of plants where nitrogen, along with other elements, is utilized to produce proteins. Nitrogen, in the form of nitrate, is an essential element required by the plant for the synthesis of amino acids and proteins.

Plants obtain nitrate through the soil from the water they absorb through their roots. It is transported from the roots to the leaves through the xylem vessels, which form a continuous pipeline from the roots to the stem and leaves of the plant. The process of protein synthesis is important for the growth and development of plants.

It is essential for the production of enzymes, hormones, and structural components such as cell walls and membranes. Nitrate is, therefore, a critical substance for protein synthesis and the growth and development of plants. Option B is correct

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A. La transferencia de energía no es la misma entre las tres pruebas del experimento debido a la variación en la concentración de vinagre.

La concentración del vinagre influye en la velocidad y la eficacia de la reacción química. El vinagre es una solución diluida de ácido acético en agua, y el ácido actúa para disolver la capa externa de carbonato de calcio que compone la cáscara del huevo. Cuanto mayor sea la concentración de ácido acético en el vinagre, más rápida será la reacción y mayor será la transferencia de energía. Por lo tanto, se puede observar que la prueba que utilizó la concentración de vinagre al 10% tuvo una transferencia de energía mucho más alta que las otras dos pruebas.B.

El aparato se puede modificar para medir con mayor exactitud la transferencia de energía en cada reacción. Esto se puede hacer utilizando un calorímetro, que es un dispositivo que se utiliza para medir el calor de las reacciones químicas o los cambios físicos. El calorímetro consta de un recipiente aislado que contiene una muestra y se coloca en un baño de agua. Se mide la temperatura del agua antes y después de la reacción, y la diferencia en la temperatura se utiliza para calcular la cantidad de calor absorbido o liberado por la muestra.

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The probability that a randomly selected potential traveler will fall within the permitted height range is approximately 0.8186. The probability that a randomly selected group of 25 travelers will all be within the permitted height range is approximately 0.1544. The probability that a randomly chosen group of 25 travelers is underneath the weight limit is approximately 0.0014.

To find the probability that a randomly selected potential traveler falls within the permitted height range, we can calculate the area under the normal distribution curve between the given height limits. Using the Z-score formula, we can standardize the height range and then use the standard normal distribution table or a calculator to find the corresponding probabilities. The result is approximately 0.8186.

To calculate the probability that a group of 25 travelers will all be within the permitted height range, we need to consider the probability of each individual being within the range and then multiply those probabilities together. Since the heights of individuals are independent, we can use the multiplication rule for independent events. The probability that an individual is within the range is approximately 0.8186, so the probability that all 25 individuals are within the range is (0.8186)^25, which is approximately 0.1544.

Step 3: To determine the distribution of the mean weight of a sample of 25 travelers, we need to consider the central limit theorem. According to the theorem, if the sample size is large enough (typically n ≥ 30), the distribution of sample means will be approximately normal, regardless of the shape of the population distribution. The mean weight of the sample will still have a mean of 78kg, but the standard deviation will be the population standard deviation divided by the square root of the sample size, which in this case is 4kg/sqrt(25) = 0.8kg. Therefore, the distribution of the mean weight will be a normal distribution with a mean of 78kg and a standard deviation of 0.8kg.

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Answer:

No

Explanation:

If that were to happen, the baby would stay an infant until he/she passes away. The baby will not have the chance to grow up.

Answer:

no

Explanation:

Answer:

Your answer would be B: a line graph

Have a good day!

The methods that are involved in making a smear are staining the slide background and then applying cells and applying a liquid suspension to a cover slip.

i) Take bacteria by the loop. If it is solid media, add water to the slide and mix it with culture. If it is liquid media, no need to add water to the slide.

ii)Spread the taken culture on the coverslip.

ii)The smear is then fixed by drying. The drying can be done by room temperature, hairdryer, or by keeping it on warmer slides.

iv)Now, the smear is ready.

The fixed smear can be stained and visualized. This method is followed in gram staining as well. The staining procedure is not involved in smearing.

So, the correct options are B and D.

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Answer: 0%

Explanation: If one parent is has BB genotype, and the other bb then the ofspring possibility would all be Bb

Answer:

zero percent

Explanation:

Answer:

Explanation:

Our car broke down. ...

They spoke to him in English, but she responded in Spanish.

She goes to the beach, and she takes her cat.

Although Michael reads novels, Joly reads comics.

5.As Alex was arriving to work, he realized he forgot his lunch.

Kidneys are used to excrete urine and toxic wastes. They are very essential for keeping the body clean. Usually it excretes urea, sodium and some salts which are considered as waste in the body.

Lungs are used to breathe in and out air. It helps us to stay alive. We breathe in oxygen rich air and breathe out foul carbon dioxide air.

Answer:

A. Produces all the power of the cell

Explanation:

Nucleus is the power house of the cell

PLZ MARK BRAINLIEST

Answer:

C

Explanation:

b/c the nucleus of the cell contains the information needed to build a whole new animal, plant, bacterium or fungus.

Species, Population, and Gene Pool:

Species: a group of organisms that share common characteristics and can interbreed to produce viable offspring.

Population: a group of individuals of the same species living in a specific geographic area.

Gene Pool: the collection of all the genes and their different alleles within a population.

Allele frequency:

Allele frequency: the relative proportion of a particular allele in a population's gene pool.

Genotype vs. Phenotype:

Genotype: an individual's genetic makeup, which determines their inherited traits.

Phenotype: an individual's observable physical or behavioral traits, which result from the interaction between their genotype and environmental factors.

Sources of Genetic Variation:

Mutations: changes in DNA sequences that can result in new alleles.

Genetic Recombination during Sex: the shuffling and recombination of alleles during meiosis, which can generate new combinations of alleles.

Lateral Gene Transfer: the transfer of genetic material between different organisms, which can introduce new genes into a population.

Genes and Traits:

Single-gene Traits: traits that are determined by the expression of a single gene.

Polygenic Traits: traits that are determined by the expression of multiple genes.

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Answer:

A

Explanation:

Definitely A I searched it up

A heterotroph is an organism that consumes other organisms in a food chain.

So the answer is D) heterotrophs.

Plants on the other hand, are autotrophs, they are able to produce energy from solar energy, so they are the first one on the food chain.

Answer:

Something like H2 would be a molecule because it is only made out of 1 element.

Explanation:

Answer:

The answer is hydrogen gas

The chloroplast is a unique organelle found in eukaryotic photosynthetic cells. It is a double-membrane bound organelle, consisting of an inner and outer membrane.

The inner membrane surrounds the stroma, which is the fluid-filled region of the chloroplast where the Calvin cycle takes place. The stroma contains the enzymes and other molecules needed for the light-independent reactions of photosynthesis.

The thylakoids are stacked, flattened, membranous structures located in the stroma of the chloroplast, where light reactions occur. The light-dependent reactions of photosynthesis take place in the thylakoid membrane, specifically in the thylakoid lumen.

Light energy is absorbed by pigments such as chlorophyll and converted into chemical energy in the form of ATP and NADPH. The light-independent reactions, also known as the Calvin cycle, take place in the stroma of the chloroplast. In this phase, CO2 is fixed by the enzyme RuBisCO into glucose and other sugars using the energy from ATP and NADPH generated in the light-dependent reactions.

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Answer:

1.Structural Divisions of the Nervous System. The nervous system can be divided into two major regions: the central and peripheral nervous systems. The central nervous system (CNS) is the brain and spinal cord, and the peripheral nervous system (PNS) is everything else.

2.Like the nervous system as a whole, the peripheral nervous system also has two divisions: the sensory division and the motor division. The sensory division of the PNS carries sensory information from the body to the central nervous system.

3.Sensory receptors with corresponding stimuli to which they respond.

Receptor Stimulus

Apmullae of Lorenzini (primarily function as electroreceptors) Electric fields, salinity, and temperature

Baroreceptors Pressure in blood vessels

Chemo receptors Chemical stimuli

Electromagnetic radiation receptors Electromagnetic radiation

Electroreceptors Electrofields

Hydroreceptors Humidity

Infrared receptors Infrared radiation

Magnetoreceptors Magnetic fields

Mechanoreceptors Mechanical stress or strain

Nociceptors Damage or threat of damage to body tissues (leads to pain perception)

Osmoreceptors Osmolarity of fluids

Photoreceptors Visible light

Proprioceptors Sense of position

Thermoreceptors Temperature

Ultraviolet receptors Ultraviolet radiation

Answer:

The transformation of plant cells occurs when a recombinant plasmid of an Agrobacterium, which has an inactive tumor-producing gene, infects the cell. In addition, another way for the transformation to occur in when the plant cell’s chromosomes would take the recombinant plasmid and regenerate into a new plant.  On the other hand, animal cells are transformed once the DNA is injected directly into the nucleus of the egg cell. This process triggers the enzymes to help insert the foreign DNA into the chromosome.

The transformation of plant cells occurs when a recombinant plasmid of an Agrobacterium, which has an inactive tumor-producing gene, infects the cell.

In addition, another way for the transformation to occur in when the plant cell’s chromosomes would take the recombinant plasmid and regenerate into a new plant.

On the other hand, animal cells are transformed once the DNA is injected directly into the nucleus of the egg cell. This process triggers the enzymes to help insert the foreign DNA into the chromosome.

A straightforward haircut won't drastically alter how you look, but if you colored your hair purple and had a tattoo across your forehead, that might be a different story.

Therefore, The transformation of plant cells occurs when a recombinant plasmid of an Agrobacterium, which has an inactive tumor-producing gene, infects the cell.

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Answer:

Coal-fired power plants and nuclear power plants have their own advantages and disadvantages. Coal-fired power plants are generally considered safer than nuclear power plants because a coal power plant's failure is not likely to cause catastrophic events such as a nuclear meltdown would². Coal-fired power plants are also more reliable than nuclear power plants because coal's ability to supply power during peak power demand either as base power or as off-peak power is greatly valued as a power plant fuel³. Additionally, coal-fired power plants are more affordable, abundant, and have known technologies². However, coal-fired power plants produce more outward radiation exposure than a nuclear power plant would produce¹. The emissions are also linked to increased levels of asthma and lung cancer for local populations compared to other forms of energy¹.

On the other hand, nuclear power plants are cleaner and more efficient than coal-fired power plants because they do not produce greenhouse gases or air pollutants¹. Nuclear power plants also have a smaller footprint than coal-fired power plants and can produce more energy per unit of fuel¹. However, nuclear power plants are more expensive to build and maintain than coal-fired power plants². Nuclear power plants also pose a risk of nuclear accidents and the disposal of nuclear waste is a major environmental concern¹.

It is important to note that both coal-fired power plants and nuclear power plants have their own advantages and disadvantages. The decision to choose between the two depends on various factors such as cost, reliability, safety, environmental impact, and energy efficiency.

Answer:

I hope you understand this ans

The factors that the environment plays in DNA expression are nutrition, temperature, oxygen levels, humidity, light cycles, and the presence of mutagens.

Gene expression is the process by which our DNA's instructions are transformed into useful products, such as proteins.

Environmental elements can change which genes in an animal are expressed, which in turn impacts the animal's phenotype.

Sometimes a gene's DNA sequence or degree of activity is altered by the environment. Both of these impacts have the potential to alter the proteins that a gene produces, which in turn influences characteristics.

The nucleotide sequence of a gene can be altered by some adverse environmental influences. DNA strands, for instance, can be damaged by UV light.

Therefore, the environmental factors are nutrition, temperature, oxygen levels, humidity, light cycles, and the presence of mutagens.

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Answer:

1. true

2. false

3. false

4. true

Explanation:

The explanation for the question is in the"Hardy-Weinberg principle" pdf attached below.

The frequency of the dominant allele (H) is 0.85 and the percentage of the population that is heterozygous (Hh) is 25.5%.

In Hardy-Weinberg equilibrium, the frequency of alleles and genotypes remains constant from generation to generation in a population. Hardy-Weinberg equation allows to calculate the expected frequencies of alleles and genotypes present in a population.

The equation of Hardy-Weinberg equilibrium is : p^2 + 2pq + q^2 = 1 where p is the frequency of the dominant allele and q is the frequency of the recessive allele.

The wire hair (H) is dominant to smooth hair (h) in a certain species of dog. p + q = 1 is known and q = 0.15 (frequency of smooth hair). By substituting q = 0.15 in the equation of Hardy-Weinberg equilibrium, the frequency of the dominant allele (H) can be calculated which is 0.85 and the percentage of the population that is heterozygous (Hh) is 25.5 percent.

Therefore, the frequency of the dominant allele (H) is 0.85 and the percentage of the population that is heterozygous (Hh) is 25.5%.

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These sports include all the above, which are:a) Weight-class sports such as boxing or wrestling.b) Those where appearance is judged along with performance, such as gymnastics.c) Those where thinness is thought to lead to improved performance.

Athletes in certain sports are at an increased risk for developing eating disorders due to the pressure to perform well. The body image issues are closely associated with the athletes in certain sports. They often feel that they have to maintain a certain weight or body shape to perform well in their sport. Some sports require athletes to be in a specific weight class while others require athletes to have a specific appearance.

Thus, athletes in certain sports are at an increased risk for developing eating disorders.

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Answer:

The answer is the nucleus,

Explanation:

Can I have brainliest? It would help me out, if not thanks anyways! Hope this helped and have a nice day!

Rr ⇒Dominant ,rr ⇒ recessive, RR ⇒ Dominant .The genotypes that homozygous are rr and RR.

Gene pool as a whole is characterized by the term "genotype," which roughly refers to an organism's genetic make-up. The term can also be used in a more precise sense to refer to the several alleles, or variations of a gene, that an organism possesses. A beta-globin gene variation known as sickle hemoglobin is what causes sickle cell disease (Hb S)

It is also known that the malaria parasite consumes a significant amount of hemoglobin both for survival and during the peripheral blood stage of replication and duplication.

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The complete question is :

Identify whether each genotype exhibits the recessive or dominant phenotype. Circle the genotypes that are homozygous?

Rr :

rr  :

RR:

The expected fraction of offspring with red eyes in a cross between Rr Ee and Rr Ee is 3/4.

This is because there are three possible genotypes that will lead to red eyes (RREe, RrEE, and RrEe) and one genotype (rree) that will lead to white eyes. Therefore, 3 out of 4 offspring will have red eyes.

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