Cuales fueron los primeros logros de la humanidad dentro del área de la biología

Answer:

In some nuclear reactors, water is used as a coolant. If this cooling mechanism fails, the temperature in the reactor core can rise dangerously high. The most dramatic such 'meltdown' was the Chernobyl disaster of 1986.

Answer:

C :D

Explanation:

Answer:

d

Explanation:

i hope this helps

Answer:

The cuticle is located outside the epidermis and protects against water loss; trichomes discourage predation. The mesophyll is found between the upper and lower epidermis; it aids in gas exchange and photosynthesis via chloroplasts.

Explanation:

thsis answer is not from google

Answer:

Explanation: The opening line, "One dollar and eight-seven cents" (in 1905) is equivalent to how much in today's dollars? Why is this amount both important and unimportant in the story?

Answer: The answer is cyclic

Explanation: just took the test

No, carbon-14 dating can only be used to establish the age of objects that have historically supported life. This is due to the method's foundation in the measurement of radioactive carbon-14, which is only found in organic materials, in a sample (i.e., materials that were once living).

Cosmic rays' interactions with nitrogen atoms in the atmosphere produce carbon-14, which is then absorbed by plants during photosynthesis. Animals consume carbon-14 when they consume plants, which is then absorbed into their tissues. Scientists can measure the length of time since an organism died by measuring the quantity of carbon-14 that is still present in a sample after the carbon-14 in the tissues starts to degrade after death at a known pace.

The four stages of photosynthesis include light absorption, electron transfer, ATP production, and carbon fixation. The equation for the photosynthetic process is 6CO2 + 6H2O → C6H12O6 + 6O2.

Green plants, algae, and some microorganisms transform light energy into chemical energy in the form of organic compounds like glucose through a process called photosynthesis. The plant cell's chloroplasts, where chlorophyll collects light and uses it to fuel chemical reactions that make glucose from carbon dioxide (CO2) and water, are where this process takes place (H2O). The plant stores the glucose created during photosynthesis as energy and uses it as a source of food for itself and other organisms that consume it.

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Answer:

BMI is Body Mass Index.

Explanation:

It has 5 Indexes. Underweight, Normal, Overweight, Obese, and Extremely Obese.

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Answer:

body mass index - a calculated number representing a person's level of fat or obesity. Weight (in kilograms) / height (in meters) ^2. BMI formula in metric units. Weight (in pounds) / height (in inches) ^2 * 703. BMI formula in English units. Your BMI is equal to your weight in pounds, times 704.7, divided by the square of your height in inches.

Explanation:

The formula for BMI is weight in kilograms divided by height in meters squared. If height has been measured in centimeters, divide by 100 to convert this to meters. When using English measurements, pounds should be divided by inches squared. This should then be multiplied by 703 to convert from lbs/inches2 to kg/m2.

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Testable hypotheses are statements that can be tested and measured by conducting an experiment or making observations. These hypotheses must be falsifiable, meaning that they can be proven false through testing.

Hypotheses must be phrased in a way that can be tested in an experiment or through observation. For the first question, an experiment could be conducted to determine whether children’s heart rates increase at the same speed when walking uphill. The hypothesis could be that children’s heart rates will increase at different speeds when walking uphill, depending on their fitness levels and overall health.

For the second question, an experiment could be conducted to determine the effect of temperature on how long blood can be stored. The hypothesis could be that blood stored at higher temperatures will degrade more quickly than blood stored at lower temperatures.

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The inheritance mechanism is straightforward Mandal in a dominant allele and the excel in a heterosexual female, where 50% of the functional Protein is enough to give a wild type phenotype.

For single-gene disorders, there are basically five different ways that inheritance can occur: autosomal dominant, autosomal recessive, X-linked dominant, X-linked recessive, and mitochondrial. Both simple multi-factorial diseases and complex single-gene diseases frequently exhibit genetic variability.

Inheritance patterns in humans include incomplete dominance, codominance, lethality, X-linked dominance and recessiveness, and autosomal dominance and recessiveness. A mutation is a change in the DNA's nucleotide sequence, which may or may not result in a phenotype.

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Answer:

The pancreas is not part of the respiratory system

Answer: H+ ions only move one direction through ATP synthase because ATP synthase is powered by the potential/gradient that comes from a difference in the concentration of H+ on either side of the inner membrane.

She postulates that this is due to primarily to coevolutionary relationships that are different in different areas due to the distribution of various parasites and mutualistic partners of the lobster species. If this hypothesis is correct it would be a clear example of mosaic coevolution.

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She postulates that this is primarily to coevolutionary relationships that are different in different areas due to the distribution of various parasites and mutualistic partners of the lobster species. If this hypothesis is correct it would be a clear example of mosaic coevolution.

The mosaic theory of coevolution states that geographic location and community ecology have an impact on the many coevolution between closely related species in different populations.

These populations may be separated based on time or place. Depending on the ecological context, interspecific relationships might be friendly or hostile.

In mutualism, both parties benefit from the interaction, whereas one party often has worse fitness in hostile interactions.

Arms races occur when two species try to outdo one another.

Trait mixing, hot locations, and cold places are only a few of the factors that affect these connections.

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A bacterial promoter sequence must be added to a eukaryotic gene's coding exons in order for the gene to be engineered into a bacterial colony and produced there. Option (c) is correct.

A promoter is a sequence that starts a gene's transcription, according to the discipline of genetics. The promoter region located upstream in the bacterial cell, and without the promoter sequences, transcription cannot take place.

Therefore, for the expression of the genes, a bacterial promoter sequence must be connected in addition to our desired code of exons. Since introns are non-coding sequences and do not affect how genes are expressed, additional options like them are not necessary. A core promoter in eukaryotes regulates the transcription of genes into RNA transcripts by the enzyme RNA polymerase II.

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Correct Question:

In order for a eukaryotic gene to be engineered into a bacterial colony to be expressed, what must be included in addition to the coding exons of the gene?

A) the introns.

B) eukaryotic polymerases.

C) a bacterial promoter sequence.

D) eukaryotic ribosomal subunits.

E) eukaryotic tRNAs.

Answer:

The answer is True

Explanation:

Answer:

it is true

Explanation:

Prokaryotic cells are surrounded by a plasma membrane, but they have no internal membrane-bound organelles within their cytoplasm. The absence of a nucleus and other membrane-bound organelles differentiates prokaryotes from another class of organisms called eukaryotes.

The sequence with the correct word in place would be DNA --> Gene --> Chromosome

The basic unit of genetic information is the gene.

Genes are made up of a base sequence of DNA.

Genes are organized into structures known as chromosomes.

Thus, DNA --> Gene ---> Chromosomes

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The expected polypeptide product from a poly-G mRNA that is 30 nucleotides long would consist of 10 glycine amino acids.

This is because a poly-G mRNA contains only guanine (G) nucleotides, which when translated, produce a repeated codon sequence (GGG) that codes for the amino acid glycine. Since there are 30 nucleotides, and each codon consists of 3 nucleotides, the resulting polypeptide chain would have 10 glycine amino acids.

Each codon codes for a specific amino acid, and in this case, since there are 30 nucleotides, there would be 10 codons, each consisting of three nucleotides. Since G is the only nucleotide present in the mRNA, each codon would consist of three guanine (G) nucleotides, which codes for the amino acid glycine. Therefore, the polypeptide product of this mRNA would be a string of 10 glycine amino acids.

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The lymphoma-associated fusion tyrosine kinase itk-syk requires pleckstrin homology (PH) domain-mediated membrane localization for activation and cellular transformation.

In this study, researchers investigated the role of the fusion tyrosine kinase itk-syk in lymphoma development. They found that itk-syk requires membrane localization mediated by the pleckstrin homology (PH) domain for its activation and cellular transformation.

The PH domain is a protein domain that has a high affinity for binding to phosphoinositides, which are lipid molecules found in the cell membrane. By localizing itk-syk to the cell membrane through its PH domain, it becomes activated and triggers cellular transformation, potentially contributing to the development of lymphoma.

This study provides insights into the molecular mechanisms underlying lymphoma-associated fusion tyrosine kinases and highlights the importance of PH domain-mediated membrane localization in their activation and oncogenic potential.

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During times of relaxation, the parasympathetic division of the autonomic nervous system utilizes discrete and localized innervation, stimulating only one or a few structures at the same time.

In general, parasympathetic and sympathetic divisions are very similar to the preganglionic axons are myelinated, on the other hand  post- ganglionic axons are unmyelinated. When Parasympathetic nervous system (PSNS) is activated, this slows our heart and breathing rates, also lowers blood pressure .

Hence, parasympathetic part of your autonomic nervous system helps in balancing sympathetic nervous system. Sympathetic nervous system controls your body's fight or flight response, while  parasympathetic nervous system control body's response times of rest.

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Answer:

The correct answer is - covalent bond.

Explanation:

Answer:

I did not watch the video

Explanation:

It keeps saying my answer has inappropriate words so I had to attach it as a pdf but anyway i hope this helps!

Answer:

21,19,25,23

Explanation:

You are adding 6 to get the next number, than subtract 2 from the the number

Answer:

Yes

Explanation:

When you put any force on an object (depends on how much mass it has), it should be moved by the force.

Explanation:

yes, force can cause motion

Answer:

potassium bromide, KBr is a binary ionic compound.

Answer:

D Ecosystem

Explanation:

Answer:

dd

Explanation:

The magnitude of the electric field in the membrane is 8.75 x 10⁶ V/m.

The magnitude of the electric field in the membrane is 8.75 x 10⁶ V/m.

The given values are:

Thickness of the cell membrane = d = 8.0 x 10⁻⁹ m

Potential difference across the membrane = V = 0.070 V

The electric field E is given by the formula: E = V/d

The magnitude of the electric field in the membrane is 8.75 x 10⁶ V/m.

A cell membrane is made up of two layers of lipid molecules, which are arranged in a specific way that separates the inside and outside of the cell. The inner and outer surfaces of a cell membrane carry a negative and a positive charge, respectively. Because of these charges, a potential difference of about 0.070 V exists across the membrane.

The thickness of the cell membrane is 8.0×10⁻⁹ m. To determine the magnitude of the electric field in the membrane, we use the formula:

E = V/d

where E is the electric field, V is the potential difference, and d is the thickness of the membrane.

Substituting the given values, we get:

E = 0.070 V / 8.0×10⁻¹⁹ m E = 8.75 x 10⁶ V/m

Therefore, the magnitude of the electric field in the membrane is 8.75 x 10⁶ V/m.

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Answer:

urethra

Explanation:

urine exit the bladder through the urethra.

In mathematics, the irrational number (1 + Square root of 5)/2, frequently represented by the Greek letter or, which is roughly equivalent to 1.618, is known as the golden ratio, also known as the golden section, golden mean, or heavenly proportion.

The Greek letter phi () stands for the irrational number known as the golden ratio or golden mean, which roughly equates to 1.618. When two numbers' ratios to one another and to their total to the greater of the two numbers is the same, this is known as the golden ratio.

The golden ratio, or roughly 1.618, is an irrational number that is equal to (1+5)/2. The ratio is a result of an old Indian mathematical formula that Western culture named after Leonardo Fibonacci, who popularized the idea in Europe.

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Polysaccharides are molecules formed of sugar monomers such as glucose, galactose, fructose, and so on, whereas polypeptides are molecules built of amino acids, and these amino acids are of 20 various sorts.

Nucleic acids are biopolymers, or macromolecules, that are necessary for all known forms of life.  Nucleotides are monomers made up of three components: a 5-carbon sugar, a phosphate group, and a nitrogenous base. Deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) are the two primary types of nucleic acids (RNA). The polymer is RNA if the sugar is ribose; DNA if the sugar is the ribose derivative deoxyribose.

Nucleic acids are naturally occurring chemical substances that function as the principal information-carrying molecules in organisms and comprise the genetic material.

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Heart and many blood vessels in the body make up cardiovascular system or circulatory system.

System of organs that includes the heart, blood vessels and blood which is circulated throughout the entire body of  humans or any other vertebrate is called blood circulatory system. It includes cardiovascular system that mainly consists of heart and blood vessels.

1. For the circulation to occur all of the following is needed except : B. pumping device

2. Fluid that bathes the specialized cells & function in exchanging maintaining constant environment is called: A. interstitial fluids

3. Which of the following is extra cellular fluid? D. Aqueous humor

4. One of the following includes all the others A. Cardio vascular system

5. All of the following are the function of the blood except B. Transpiration.

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