Responder:
Hipótesis científica
Explicación:
El procedimiento de representar un fenómeno que no puede explicarse a la luz de la teoría científica actual se llama hipótesis científica.
Generalmente, en el orden de los Métodos Científicos, las observaciones y las preguntas son los primeros pasos. Sin embargo, para proporcionar posibles explicaciones al fenómeno obtenido al hacer preguntas y observaciones, se necesita una suposición o sugerencia. Esta es la suposición científica: para que sea válida, debe ser refutada, basada en la observación cuidadosa del fenómeno.
su esencia es predecir los posibles resultados de un intento de experimentos y después de realizar los experimentos para confirmar si el resultado está de acuerdo con la predicción.
Answer:
Scientific hypothesis
Explanation:
The procedure of representing a phenomenon which can not be explained in the light of the present scientific theory is called scientific hypothesis.
Generally in the order of Scientific Methods observations and asking of questions are the early steps.How ever, to provide possible explanations to the phenomenon by asking questions and observation , a guess or suggestion is needed. This is the scientific guess,For it to be valid,it must be refuted, based on the careful observation of the phenomenon.
its essence is to predict the possible outcomes of an intending experiments and after conducting the experiments to confirm if the outcome agrees with the prediction.
What makes ribosomal RNA useful as a molecular clock? (2 points) A large portion of the DNA ring is not vital to structure or function, allowing it to accumulate neutral mutations. Its rate of mutation increases over time as organisms continue to evolve and differentiate from each other. A slow mutation rate makes it useful for determining evolutionary relationships between ancient species. It is only found in select organisms, making it easier to compare relationships between species that have it.
Answer:
The correct statement is that a slow mutation rate makes it useful for determining evolutionary relationships between ancient species.
Explanation:
The rRNA or ribosomal RNA has an application as a molecular clock because of many factors. It exhibits a very slow mutation rate, that is, around one million years because of which it stays highly conserved in all the organisms. In the ribosomal RNAs of two organisms, the degree of mutations can be associated directly with the time they were originated in the past.
In supplementation, it possesses essential biological function because of which it can be witnessed in almost all the species.
Answer:
A slow mutation rate
Your mom has started complaining to you about her varicose veins and is thinking about surgery. What true information could you tell about varicose veins?
Answer:
One very true and essential information to know about varicose veins is that there is often re-occurrence following after surgery.
Explanation:
Varicose veins are a group of large, benign, twisted, and superficial veins on the skin surface. They may come with no side effect in some sufferer (asides from the physical appearance), and can cause chronic pain and discomfort in others, usually pointing to an underlying circulatory problem. Varicose veins are caused by damaged or weak valves in the veins, and complications like bleeding might occur. Some people with the risk of developing this disease are obese people, people with genetic tendencies, and usually pregnant women. Treatment methods includes compression stocking, a lifestyle change, and some medical procedures like surgery. After surgery, there is usually re-occurrence.
Consider this microscopic image of bacteria. Rod-shaped bacteria is shown. Based on its shape, what is most likely the form of this bacteria? coccus staphus bacillus spirillum
Answer:
C) Bacillus
Explanation:
Trust the process
what doesnt occur in translation
Answer:
the sequences of nucleotides on the TRNA is read in triplet's called codons is not a key in the process of translation.
1. Escherichia coli is one of the most common causes of foodborne illness, yet it is also a common microorganism found within the human gut. What explains this disparity
Answer:
E. coli is commonly found in the large intestine of humans and other warm-blooded animals (2). These strains can be commensal, existing in a symbiotic state providing resistance against pathogenic organisms, or be pathogenic and cause diseases of intestinal and extra-intestinal sites
Explanation:
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Why does deleting just one nucleotide cause a dramatic change in the amino acid sequence produced by translation
Answer:
The deletion changes the genetic code.
Explanation:
The sequence of nucleotides determines the order of amino acids in a protein, the order of amino acids determines the shape and the shape determines the function. A very good example of one misplaced nucleotide having tremendous effects is sickle cell disease, where thymine is replaced with adenine(CAC instead of CTC). It means that glutamic acid is replaced with valine. This alters the shape of the protein(Beta chain of hemoglobin). So the red blood cells are deformed and carry a lot less oxygen leading to a lot of symptoms just because of one misplaced letter.
Mutations in the three genes are all autosomal recessive and the three genes are unlinked.Two different true breeding mice have been isolated that do not make any antigen (neither 1 or 2). A Cross of these two different mice produce F1 that make both antigens.What are the genotypes of the two parents?
Answer:
Let's call gene 1, 2, 3 as gene X, Y, Z respectively.
Parent 1 = xxYYZZ
Parent 2 = XXyyzz
(or vice versa)
Explanation:
Since all of the three mutations are said to be recessive and un-linked. According to the question statement, neither parents have the ability to make any antigen. When these two genotypes will be crossed, a genotype XxYyZz will be obtained. This one will be capable of producing antigen.
Obsessive-compulsive disorder has a(n) __________ genetic basis.
weak
strong
immeasurable
moderate
Answer:
Strong
Explanation:
Obsessive-compulsive disorder (OCD) is a psychiatric condition that affects both children and adults. In the last years, it has been shown that genetic and environmental factors contribute to the etiology of this disease. By applying genetic mapping techniques, different genes were observed to be associated with OCD. Moreover, it has also been discovered that OCD is a trait that has a complex pattern of inheritance (i.e., it is a quantitative trait). However, it is important to note that more research is needed to fully understand how genetic factors influence OCD condition.
Obsessive-compulsive disorder is defined as a mental illness in which repeated thoughts or obsessions occur repeatedly. OCD is partially genetic and half of the cause of OCD is genetic.
The correct word for the given blank is:
Obsessive-compulsive disorder has a(n) strong genetic basis.
Obsessive-Compulsive Disorder is a mental condition in which an adult or child can get affected.
The environmental and genetic factors contribute to the etiology of the disease. Genetic mapping and other research techniques have shown some of the genes are associated with OCD.
However, the research is still going on the fully understand the inheritance pattern of OCD.
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Endothermic animals maintain their body temperature by increasing metabolic heat production in cool environments. Which food chain loses the most energy to cellular metabolism? algae → mosquito → spider → bat algae → mosquito → bat algae → mosquito → spider → snake algae → mosquito → bat → weasel
Scientific laws explain how and why something occurs on a scientific level.
Answer:
Answer. Scientific laws DO NOT explain how something, or why something happens. A scientific law can be thought of simply stating what happened. A scientific theory tries to explain how and why something happens on a scientific level.
Explanation:
Which of the following is the best definition of osmosis?
A.
Transport of molecules across the cell membrane that requires the use of energy in the form of ATP
B.
The movement of molecules across the cell membrane from areas of low concentration to areas of high concentration
C.
The movement of water across the cell membrane from areas of high concentration to areas of low concentration
D.
Transport of substances that requires the cell membrane to pinch around the substance, forming a vesicle
Answer:
Option B ( the movement of molecules across the cell membrane form areas of low concentration to areas of high concentration)
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Water flowing across the cell membrane from high concentration areas to low concentration areas
The correct answer is C
What is the purpose of a cell membrane?A membrane that separates the interior from the outside environment is present in every cell. The term "cell membrane" or "plasma membrane" refers to this membrane. The cell membrane is composed of a semipermeable liquid layer. Materials are moved into and out of cells under the regulation of the cell membrane.
Cell membrane is composed of what?Proteins and lipids make up cell membranes. Only specific things can get through them because lipids make up the majority of their composition. The sort of lipid that is most prevalent in the membrane is called phospholipid. The outer layer and the inner layer make up phospholipids.
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What is binomial nomenclature? a two word system for naming organisms by using the genus and species a two word system for naming organisms by using the family and genus a two word system for naming organisms by using the order and family a two word system for naming organisms by using the domain and species
Answer:
binomial nomenclature is a two word system for naming organisms by using the genus and species .
Explanation:
As the name indicates" bi" two and "nomial" name therefore
binomial nomenclature is a two word system for naming organisms by using the genus and species . it uses both the genus and species of the organism.
The binomial nomenclature consists of a two word system for naming organisms by using the genus and species.
What is the purpose of binomial nomenclature?Binomial nomenclature is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin grammatical forms, although they can be based on words from other languages.
Binomial nomenclature is a binomial system of naming a species. A binomial name is comprised of two parts. They are (1) the generic name (genus name) and (2) the specific name (or specific epithet, in botanical nomenclature). It is often in a Latinized form.
Every recognized species on earth (at least in theory) is given a two-part scientific name. This system is called "binomial nomenclature." These names are important because they allow people throughout the world to communicate unambiguously about animal species.
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Ms. Jenson is a young woman who routinely uses a variety of herbal products to treat and prevent diseases. She knows there is a strong history of type 2 diabetes in her family and has read on the Internet about drinking black tea to prevent diabetes. She asks you whether you think that would work for her. What should you tell her?Do you think it is a good option for her?What has research shown out black as a preventive treatment for diabities?where could she find evidence based information about this?
Answer:
You should be advised to use it as a complementary natural treatment in addition to insulin or oral hypoglycemic, since it must be based on quality scientific evidence.
For this you can search in search sources such as PUBMED.
Explanation:
Some research maintains that black tea is responsible for stimulating the secretion of insulin by the beta cells of the pancreas
Which is a consequence of global warming?
cooling oceans
growing glaciers
less frequent hurricanes
rising sea levels
Answer:
Rising sea levels
Explanation:
Due to global warming the sea warms up and expands beyond it's basin causing the level to rise
I hope this helps.
Answer:
d.rising sea levels is the answer on edge2021
Explanation:
When sea levels rise as rapidly as they have been, even a small increase can have devastating effects on coastal habitats farther inland, it can cause destructive erosion, wetland flooding, aquifer and agricultural soil contamination with salt, and lost habitat for fish, birds, and plants
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An operation to repair inguinal hernia is called:
A. Hernioectomy
B. Herniotomy
C. Herniorrhaphy
D. Haemorrhoidectomy
Answer:
I think the answer would be option C
HERNIORRHAPY
Which type of selection leads to increased phenotypic and genetic variation? directional selection disruptive selection stabilizing selection species selection
In directional selection, a population's genetic variance shifts toward a new phenotype when exposed to environmental changes. Diversifying or disruptive selection increases genetic variance when natural selection selects for two or more extreme phenotypes that each have specific advantages.
Answer:
Species selection
Explanation:
Just took the test
A mosquito somatic cell contains 6 chromosomes. This means that ____ different combinations of chromosomes are possible in the mosquito’s gametes as a result of the random alignment of chromosomes during meiosis.
Answer:
8
Explanation:
The law of independent assortment of genes as proposed by Gregor Mendel states that the alleles of a gene will separate into gametes independently of the alleles of another. This means that during the metaphase stage of meiosis I, line up randomly at the metaphase plate of the cell in order to be separated independently.
According to the question, a mosquito has 6 chromosomes in its somatic cells. This means that 2n (diploid) = 6 Chromosomes. Hence, after meiosis, its gametes (n) will contain 3 chromosomes each. To find the number of different combinations of chromosomes possible in the mosquito’s gametes, we use 2^n where n represents the number of haploid chromosomes.
Hence, if 3 chromosomes are possible in a mosquito's gametes, 2^3 = 8 different combinations of chromosomes are possible in the gametes as a result of random orientation during the metaphase of meiosis.
Alternative to glucose based cellular respiration
Answer:
Cellular respiration is defined as a metabolic reaction occurs in cells, in which chemical energy from glucose is converted into adenosine triphosphate (ATP).
The alternative to glucose based cellular respiration is fermentation in which energy is produced from the oxidation of organic compounds, such as glucose from within a cell as "electron acceptors".
Unit Test
How does increasing the distance between charged objects affect the electric force between them?
O The electric force increases because the distance has an indirect relationship to the force.
The electric force increases because the distance has a direct relationship to the force.
O The electric force decreases because the distance has an indirect relationship to the force.
O The electric force decreases because the distance has a direct relationship to the force.
Answer:
C. The electric force decreases because the distance has an indirect relationship to the force.
Explanation:
The electric force decreases because the distance has an indirect relationship to the force. Therefore, the correct statement is option C.
What happens when the distance between two charged items grows?As the distance between two charged items grows, the electric force between them diminishes. Because of the inverse square law, which states that the force of attraction or repulsion between two charged objects diminishes as the square of the distance between them rises, this is the case.
The force exerted by two charged objects will be decreased to one-fourth of its initial strength if the distance between them doubles. Similar to this, if the distance is quadrupled, the force loses 90 percent of its initial power. As a result, the electric force between charged objects lessens with increasing distance.
The farther the distance between charged objects, the weaker the electric force between them becomes due to the decrease in the strength of the electric field. This relationship follows an inverse square law.
Therefore, electric force decreases because the distance has an indirect relationship to the force.
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Explain how respiration occurs in plants. Someone please answer
Answer:
Respiration is the process includes plants,receive their energy for a chemical chain system is called respiration.
Explanation:
Respiration is the biochemical process , is the external environment the cell,special living a tissues.
Respiration is the process plants oxygen gas inhaled and the carbon gas exhaled out the plants.
During the respiration is the gas exchange process different parts of the plants:-ROOTS, STEMS, plants exchange respiration easily.
Roots are the underground part of the plant and present in the soil particles, and the night the respiration plants is prominent.
Respiration in stems air the diffused the various parts of the cell for passes respiration.
Leaves is the process that pores referred as exchange of gas and the leaves.
The karyotype reveals that the aliens have a total of 200 chromosomes in each somatic cell. Assuming this alien reproduces sexually, how many chromosomes would its gametes have?
Answer:
100
Explanation:
in sexually reproduction gametes are formed by meiosis where number of chromosome is reduced by half(haploid gametes)
What bone runs parallel to the fibula?
Answer:
Tibia bone runs parallel to fibula.
Answer:
the tibia runs parallel to the fibula
Explanation:
both bones are present in the part of leg below the knee
Is cloning an organism the same as cloning a gene
Answer:no. In nature, some plants and single-celled organisms, such as bacteria, produce genetically identical offspring through a process called asexual reproduction. In asexual reproduction, a new individual is generated from a copy of a single cell from the parent organism.
Natural clones, also known as identical twins, occur in humans and other mammals. These twins are produced when a fertilized egg splits, creating two or more embryos that carry almost identical DNA. Identical twins have nearly the same genetic makeup as each other, but they are genetically different from either parent
Gene cloning produces copies of genes or segments of DNA. Reproductive cloning produces copies of whole animals. Therapeutic cloning produces embryonic stem cells for experiments aimed at creating tissues to replace injured or diseased tissues.
Gene cloning, also known as DNA cloning, is a very different process from reproductive and therapeutic cloning. Reproductive and therapeutic cloning share many of the same techniques, but are done for different purposes.
Explanation:
Fill in the blanks.
1. The phylum contains most common animals you are familiar with su
as eagles, dogs, foxes, and frogs.
2. While the earth is home to many members of this phylum, earthworms are
a member of
3. The most successful phylum on earth is which contains insects,
spiders, and crustaceans.
4. An animal that molts it exoskeleton is called a(n).
5. are cells that have the potential to become any type of cell; they hav
not yet received their genetic programming.
6. All members of the animal kingdom are multicellular, heterotrophic and
7. A starfish is a bilaterian deuterostome with symmetrical adults.
8. Complete the chart by describing what kinds of organs or tissues each type
germ layer becomes:
Moi
Answer:
1. chordata
2. nematoda
3. arthropoda
4. ecdysozoan
5. stem Cells
6. eukaryotic
7. radically
Chart answer:
Endoderm = Lungs, liver, pancreas, lining of gut organs
Mesoderm = Bone, muscle, heart, circulatory system
Ectoderm - Brain, nervous system, skin
Explanation:
Answer:
1. chordata
2. nematoda
3. arthropoda
4. ecdysozoan
5. stem Cells
6. eukaryotic
7. radially
8. Endoderm… Mesoderm becomes… Ectoderm becomes…
Lungs, liver, pancreas, lining of gut organs
Bone, muscle, heart, circulatory system
Brain, nervous system, skin
Explanation:
Larry recalls his first memory of riding a red tricycle at the age of 4. Larry’s memory is: True False
Answer:
True
Explanation:
False memory refers to remembering an event differently from the way it happened or remembering events that never happened at all.
Larry's memory is a true memory because it doesn't sound like something that could be made up. Also, most children ride tricycles around the age of 4 or even younger.
Hope that helps.
why the tropics have more species than the poles of the Earth
Answer:
the tropics have more species because of the more humid enviroments because not many warm blooded animals can live near the poles. because of the abnormally cold temperatures, not many animals can survive unlike in tropical areas where there is a more vaste amounts of food and plant species, also shelter.
What is the end result of the eukaryoic cell cycle?
A. no parent cells and two daughter cells
B. one parent cel and two daughter cells
C. two parent cells and one daughter cel
D. one parent cell and one daughter cell
Answer:
A. No parent Cells and two daughter cells
In 1998, paleoanthropologist Rick Potts published an article in The Yearbook of Physical Anthropology, a peer-reviewed journal. The article was titled “Environmental Hypotheses of Hominin Evolution.” In his paper, Potts claimed that great variations in environmental conditions over time were responsible for the adaptability of humans and the success of our species. Which would most likely be found in his paper? a review of modern human anatomical structure evidence of changing environmental conditions, with references the reasons competing hypotheses are wrong his opinion of what will happen to the survival of the human race
Answer:
Dr. Potts used environmental data to support environmental hypotheses capable of explaining human evolution
Explanation:
In this paper, the author stated that environmental factors have been fundamental for the emergence of adaptive traits during human evolution. In consequence, Dr. Potts explained how particular environmental factors and habitats might have shaped human evolution. For example, it has been hypothesized that dry savanna vegetation might have been a key environmental factor associated to the emergence of human traits including, among others, bipedality, making of tools from stones, the development of human brains, etc. In order to prove this hypothesis, the author recorded environmental data from different regions in Africa (Olorgesailie, Olduvai, Turkana, Zhoukoudian, etc), where it is believed that first hominids evolved about 6-8 million years ago.
ITS NOT B AND ITS NOT C
SOOO EITHER D OR A
Explanation
You have a nutrient broth, an agar slant, and an agar plate with bacterial growth in or on each. If you wanted to evaluate the macroscopic appearance of the bacteria growing in or on the medium, which of the cultures would be the best choice?
A. Agar slant
B. Broth
C. Agar plate
Answer:
The best option would be breeding ground.
Explanation:
The broths of culture show us better the macroscopy of the colonies of the bacteria, that is to say the forms of the bacterial groups, some bacteria are usually circular, others lunar, etc.
On the other hand, the environment in which you want to develop a bacterium depends fundamentally on its metabolism, since some should be analyzed on blood agar, or other means, which is why this response is considered very subjective.
A pharmaceutical company is working on a drug to slow the spread of Ebola. Which of the following should be the company's focus?
a. Sanitizing the drinking water
b. Protecting the food supply
c. Person-to-person contact
d. Killing the insect vector
Answer:
C
Explanation:
Although Ebola isn't transferred by the air and through touch. Bodily fluids like sweat, saliva, urine, breastmilk, semen, and vomit all transmit the disease, if a person gets it in a cut or is directly introduced by it (sexual intercourse.)