The finding that aposematic coloration in poison frogs is polyphyletic indicates that it is the result of convergent evolution.
Convergent evolution refers to the independent evolution of similar traits or characteristics in different lineages that do not share a recent common ancestor. In the case of aposematic coloration in poison frogs, the polyphyletic nature of this trait suggests that it has evolved multiple times in different lineages of frogs. It is not a shared ancestral trait that arose in a common ancestor.
Instead, different frog lineages have independently evolved similar warning coloration as a means of advertising their toxicity to potential predators. This convergence in coloration is driven by natural selection, as predators learn to associate bright and conspicuous colors with toxicity and avoid consuming these frogs.
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[Anatomy, Ear] The scala ______ carry the "exhaust waves" out of the cochlea and through the fenestra cochlea to middle ear.
The scala Tympani carry the "exhaust waves" out of the cochlea and through the fenestra cochlea to the middle ear.
What is scala Tympani?
This refers to one of the three canals found in the cochlea. The scala media contains the Organ of Corti, which is the receptor organ for hearing.
It is the part of the ear where sounds are changed into electrical signals and transmitted to the brain. It is important for hearing. Sound waves are converted to mechanical vibrations in the middle ear, and then into waves within the fluid-filled cavity of the scala tympani.
Hair cells suspended in the fluid then detect these waves, and transmit the sound information through the cochlear nerve to the brain. If the fluid-filled channels are damaged, impaired hearing or deafness can result.
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bioflix activity cellular respiration the stages
The stages involved in cellular respiration are: Glycolysis, Citric Acid Cycle and Electron Transport Chain (ETC).
Glycolysis is the process where the initial breakdown of glucose takes places. This process does not require oxygen and therefore is common in all of the organisms both aerobic as well as anaerobic. The process takes place in the cytoplasm of the cell and the end product formed is pyruvate.
ETC is the part of aerobic respiration that takes place in the inner mitochondrial membrane. Here the movement of electrons occurs in order to generate a proton gradient that is used in the production of energy in the form of ATP.
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Which of the following is NOT an example of a mechanical wave?
A: water wave
B: earthquakes wave
C: radio wave
D: Sound waves
Answer:
b
Explanation:
Put the following vessels in order from largest to smallest: superior vena cava, venule, capillary, median cubital
Vessels in order from largest to smallest: are vena cava, venules, capillaries, arterioles, arteries, and the aorta.
Which vessels are in which order?A tube that carries blood is referred to as a blood vascular. The left side of the heart's left ventricle empties into the aorta, carrying oxygen-rich blood. As the aorta divides into arteries, the smaller arterioles that follow follow.
The superior vena cava should release blood in what sequence?Blood is discharged into the right atrium by both the superior and inferior vena cava. The right ventricle is supplied with blood via the tricuspid valve. The pulmonary artery receives it after passing through the pulmonic valve, and the lungs receive it after that.
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Changing the temperature or pH can change an enzyme' hape. Explain how changing the temperature or pH might affect the function of an enzyme
Due to the fact that enzymes are made up of functionally-group-containing amino acid chains, the pH of a solution might have an effect on the enzyme.
By raising the bond energy, temperature impacts enzymes by forcing the atoms in the enzyme's bonds to drift apart from one another.
These functional groups are susceptible to adjustments caused by external charges. Each enzyme operates within a rather narrow pH range. There is a pH where it is most active (the optimal pH). This is due to the fact that pH variations can create and destroy intra- and intermolecular interactions, altering the structure of the enzyme and its functionality.
When certain circumstances are met, enzymes work at their best. pH, enzyme concentration, and substrate concentration are variables that influence enzyme activity. Enzyme activity is affected by temperature.
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soil compaction
erosion of tilled fields.
pests attacking monocultures
waste of non-renewable resources
:: use of alternative sustainable fuels and inputs
[[ ]]
:: planting multiple varieties of a crop plant
:: conservation farming
:: planting cover crops
Conventional agriculture is a type of farming that relies on synthetic chemical fertilizers, pesticides, and herbicides to maximize crop yields.
What is agriculture?
Agriculture is the science, art, and business of cultivating plants and livestock. It involves the cultivation of soil, crops, and livestock, as well as the processing and marketing of food, fiber, feed, and other agricultural products. Agriculture has been a major source of income for people throughout history and continues to be the basis of many economies today.
Conventional agriculture typically relies on monoculture, or the growing of a single crop over a large area, as well as large-scale mechanization to increase efficiency. Conventional agriculture is often contrasted against organic or sustainable agriculture, which utilizes natural methods and materials to maintain soil fertility and protect the environment.
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What are examples of nursing procedures?
Examples of nursing procedures are assessing patient health, Writing down the patient's medical history and symptoms, Monitor patient health.
Nursing is a prestigious profession and an incredibly rewarding career path. Nurses not only save lives, but they also provide compassion and kindness to those who need them most—often a source of comfort, safety, and security. If you have a passion for helping others, nursing may be a good career choice for you.
RNs typically perform the following tasks:
assess patient healthWrite down the patient's medical history and symptomsMonitor patient health or recovery while recording patient observationsAdminister medications and/or treatments to patients during careCreate or contribute to a uniquely tailored patient care plan.Know more about Nursing here: https://brainly.com/question/29655021
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Which structure predominates in the white matter of the brain?
Answer:
In contrast to gray matter, in which the cell bodies of neurons predominate, the term white matter refers to areas of the brain where there is a preponderance of axons coated with myelin. (Axons, which can be up to three feet long, are the longest projections of brain cells and carry a cell's signal to other cells.)
What is an organism that obtains energy by feeding on other organisms called?
An organism that obtains energy by feeding on other organisms is called a consumer or a heterotroph. Consumers are organisms that cannot produce their own food and must consume other organisms to obtain energy. This can include animals that eat plants or other animals, as well as decomposers such as bacteria and fungi that break down dead organic matter.
There are different types of consumers, depending on their feeding habits, for example:
- Herbivores: consumers that feed on plants
- Carnivores: consumers that feed on other animals
- Omnivores: consumers that feed on both plants and animals
- Scavengers: consumers that feed on dead organisms
- Decomposers: organisms that feed on dead organisms and break down organic matter.
Heterotroph is a term that encompasses all types of consumers, including animals, fungi and microorganisms.
What will happen in the future if we keep on using our non-renewable resources?
Perhaps the most well-known effect of using non-renewable energy sources is the release of greenhouse gases, particularly carbon dioxide and methane, which contribute to climate change [1]. The amount of greenhouse gases released by various non-renewable energy sources varies.
what are non-renewable?Natural resources that cannot be easily replenished by natural means at a rate quick enough to keep up with use are considered non-renewable resources. Fossil fuels made of carbon are one instance. With the use of heat and pressure, the original biological substance transforms into a fuel like gas or oil.
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If a male shark has 40 chromosomes in each of its sex cells, what is its diploid chromosome number?.
If a male shark has 40 chromosomes in each of its sex cells, its diploid chromosome number is 80.
What is the chromosome number?Chromosome number is the precise number of chromosomes typicаl for а given species. In аny given аsexuаlly reproducing species, the chromosome number is аlwаys the sаme. In sexuаlly reproducing orgаnisms, the number of chromosomes in the body (somаtic) cells typicаlly is diploid (2n; а pаir of eаch chromosome), twice the hаploid (1n) number found in the sex cells, or gаmetes. The hаploid number is produced during meiosis.
If a male shark has 40 chromosomes in each of its sex cells, its diploid chromosome number is 2n, 2 × 40. Thus, the answer is 80.
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Which hormone is responsible by gene regulation?
Thyroxin hormone is responsible by gene regulation.
In general , Regulation of gene expression is mediated by thyroid hormones (T3, T4) with the help of thyroid hormone receptors (TRs). TRs are considered as the DNA-binding transcription factors that works as an molecular switches in ligand mediated responses. TRs are well versed in activating or repressing gene transcription that depends ligand-binding outputs.
Thyroxin hormone is generally inactive so they are converted to an active form called triiodothyronine with help of liver and kidneys like organs. Thyroid hormones are responsible for regulating and controlling the body's metabolic rate, heart and digestive functions, brain development and bones development.
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One approach to gene therapy is to remove some of a patient’s bone marrow stem cells and “infect” them with a virus that contains a functional gene. The stem cells are put back into the patient’s bone marrow, so that they can
This approach to gene therapy is known as ex vivo gene therapy. In this process, some of a patient’s bone marrow stem cells are removed from the body and exposed to a virus that contains a functional gene.
What is therapy?Therapy is a form of psychological treatment used to help people process and work through emotional and mental health issues. It is typically provided by a trained mental health professional such as a psychologist, psychiatrist, counselor, or therapist.
The virus is designed to deliver the functional gene into the stem cells, allowing them to produce the desired protein or other product. Once the stem cells have been “infected”, they are returned to the patient’s body and continue to produce the desired product. This allows the patient to benefit from the effects of the functional gene without having to undergo the risks of direct gene transfer into the body, such as the risk of causing an immune response. Ex vivo gene therapy is currently being used to treat a variety of genetic conditions, including blood diseases and cancers that are caused by a genetic mutation.
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In horses, brown horses (BB) are codominant to white horses (WW). The heterozygous (BW) phenotype is an appaloosa horse (a white horse with brown spots). Cross a white horse with an appaloosa horse.
The genotypic and phenotypic ratio from the crossing of a white horse with an appaloosa horse would be 2BW:2WW and 50% white, 50% appaloosa respectively.
Monohybrid crossingBrown horses are BB
White horses are WW
Brown (B) and white (W) are codominant and BW horses are appaloosa.
We are to cross a white horse (WW) with an appaloosa horse (BW).
WW x BW
BW WW BW WW
Genotype ratio = 2BW:2WW
Phenotype ratio = 50% appaloosa and 50% white
In other words, the genotypic ratio from the cross involving a white horse and an appaloosa horse would be 2BW:2WW while the phenotypic ratio would be 50/50 white and appaloosa.
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If dometicated dog, hair type i controlled by two different allele. The allele for wire hair i (H) and the allele for mooth hair i (h). When two heterozygou dog are croed , what percentage of the offpring i expected to be homozygou for mooth hair?
The wire hair allele is (H), and the smooth hair allele is (h), and when two heterozygous canines are crossed, the level of the posterity is supposed to be thoroughbred for smooth hair, which is 25% present in choice B.
Heterozygous is a hereditary term used to portray an organic entity that has two distinct alleles for a specific quality. This implies that the organic entity has acquired two distinct adaptations of similar quality, one from each parent. In hereditary qualities, heterozygosity is a state wherein the two alleles of a quality present in an individual are not quite the same as one another, subsequent in various characteristics and attributes.
This is on the grounds that the two heterozygous canines have a hereditary cosmetics of (Hh). This implies that when the two canines mate, every one of their gametes has a 50/50 possibility of having either the H or h allele. By consolidating these two gametes, the posterity will have a 1/4 possibility of being homozygous for smooth hair (hh). This compares to a 25% possibility of having homozygous smooth hair posterity.
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Arrange the steps in the correct order to describe how a reflex occurs.
The steps in the correct order which describes how a reflex occurs include the following below:
A receptor detects a signala sensory neuron sends a signal to the spinal corda relay neuron sends a signal to a motor neurona muscle receives a signal to contracta bone moves.What is a Reflex?This s referred to as an involuntary and nearly instantaneous movement in response to a stimulus.
This starts with the receptor detecting a signal and the sensory neuron sends a signal to the spinal cord through different proceses. Signal is then sent to the motor neuron and parts of the body such as the bones move in response to the stimulus.
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The options are:
A receptor detects a signal. A relay neuron sends a signal to a motor neuron. A sensory neuron sends a signal to the spinal cord. A bone moves. A muscle receives a signal to contract. ↓ ↓
Determine which statement about the relationship between genes DNA and base pairs is correct.
A. DNA is made up of these pairs each of which is made up of thousands of genes.
B. Genes are made up of many days peers, each of which is made up of thousands of DNA molecules.
C. Genes are made up of many DNA molecules each of which is made up of thousands of base pairs.
D. DNA is made up of many genes each of which is made up of thousands of base pairs.
The correct statement about the relationship between genes, DNA, and base pairs is: DNA is made up of many genes, each of which is made up of thousands of base pairs. Option D. is the correct answer.
What is deoxyribonucleic acid (DNA)?This is refers to a polymer made up of two polynucleotide chains that coil around each other to form a double helix. The polymer contains genetic instructions for the development, functioning, growth and reproduction of all known organisms and many viruses. DNA and ribonucleic acid are nucleic acids.
Genes are segments of DNA that contain instructions for building the molecules that make the bodywork. Some of the molecules are proteins. Parents transmit their genes to their offspring.
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How might the destruction of rainforest affect the balance of gases in Earth's atmosphere by increasing carbon dioxide and decreasing oxygen?
Trees take in carbon dioxide and traps it into tissues and soil while at the same time releasing oxygen into the atmosphere. The removal of trees significantly reduces the rate of this process, resulting in higher carbon dioxide in the atmosphere and lower natural oxygen levels.
Definition of Rain ForestRain forest is a type of forest that grows in the tropics. As the name implies, this forest which has the nickname wet forest is never absent from rain. In other words, it is a forest that has a high rainfall intensity.
This forest has a long rainy season, with up to 1,200 millimeters of rain per year. The existence of this high rainfall, causing the dry season in forest areas to be very short. In some places, there is no dry season at all.
The average rain that falls in this area is around 50 to 250 inches each year. Air humidity in this forest area which is always wet averages 77% to 88%.
In warmer years, the forest areas rarely get above 33 degrees. The temperature is generally below 20 degrees Celsius.
Just like primary forest, rainforest is a forest that has fertile soil. This forest has a layer of humus that is formed from green leaves that decay on the ground surface.
Therefore, it is not surprising that scientists claim that because of the fertility of the soil, this forest is inhabited by more than half of the plant and animal species on earth.
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Black coat is dominant over white coat in guinea pigs. a homozygous black pig is mated with another homozygous black pig.-What are the genotypes of the parents?-What are the phenotypes?-what is the probability that white offspring will be produced?
The genotypes of the parents in this scenario are both homozygous dominant for the black coat color allele (B) and the probability that white offspring will be produced is 0%
How genotypes of the given parent pigs are defined based on the observation?Each parent has two copies of the dominant B allele, which codes for a black coat color, and no copies of the recessive allele (b) that codes for a white coat color. Therefore, their genotype is BB.
What are the phenotypes of the given parent pigs?The phenotypes of the parents are both black, as the dominant B allele masks the effect of the recessive b allele. This means that the physical appearance of the parents is black, as the black coat color is determined by the dominant B allele.
What was the probability of white offspring produced after mating?When two homozygous dominant black guinea pigs are mated, all of the offspring will be homozygous dominant for black coat color (BB), as both parents only have the dominant B allele to pass on. Therefore, the probability that white offspring will be produced is 0%. This is because the recessive allele for white coat color (b) is not present in the genotype of either parent, so it cannot be passed on to the offspring. In such a case, all the offspring will have black coat.
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Which process is least likely to happen to underground water?
flowing
melting
freezing
precipitation
( It is not melting )
Precipitation is the process which is least likely to happen to the underground water. Thus, the correct option is D.
What is Precipitation?Precipitation is any product of the condensation process of atmospheric water vapor which falls under the gravitational pull from the clouds. The main forms of precipitation include drizzle, rain, sleet, snow, ice pellets, graupel, and hail, etc.
Infiltration is the phenomena which happens when the water soaks into the soil from the ground level. It moves underground and moves between the soil and rocks. Some of the water will be soaked up by roots to help plants grow.
Therefore, the correct option is D.
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Mrs. Jones' class was learning about how molecules are arranged in solids, liquids, and gases. To model molecules in liquids, she had the students stand one meter apart.
Which ,begin emphasis,best,end emphasis, describes how the students would stand to model the molecules in a solid?
Answer options with 5 options
A.
as far apart as possible
B.
in rows one meter apart
C.
as close as possible
D.
against the classroom wall
E.
five meters apart
Is the X chromosome always inherited from the mother?
Not always, the X chromosome can be inherited from the father too, because the father has the X chromosome.
The X chromosome is one of the two types of sex chromosomes besides the Y chromosome. Females have XX chromosomes, while males have XY chromosomes.
Every human being has at least one X chromosome. Females have two X chromosomes. Males have X and Y chromosomes. A female's X chromosome is inherited from her mother and the other X chromosome is inherited from her father. Men with an X chromosome abnormality are exclusive of the mother.
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Please help Directions:
1. Count the number of molecules inside and outside of the cell.
2. Label the areas as high concentration or low concentration based on your numbers.
3. Determine if passive or active transport is taking place. The cell may also be at equilibrium.
(1) . Small molecule concentration is higher outside than inside. (2) High concentration denotes a high solute concentration in the solution, whereas low concentration denotes a low solute concentration.
what is a molecules with examples?A molecules is the smallest element of a substance that keeps its content and characteristics. It is made up of two or even more elements that are joined together by chemical bonds. Chemistry is built on molecules. The element symbol and a suffix indicating the number of atoms are used to identify compounds.
Is water a molecule?Molecules are created when atoms come together. Two hydrogen (H) atom and one oxygen (O) atom comprise the three atoms which make a water molecule. Because of this, water is often written as H2O. There are billions of drops of water in a single drop.
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Give an example of a mutation and explain if the mutation is good, bad, or does not change the organism.
Answer:It would all depend on the type of mutation but say a blue jay and a hawk it would most likely be good
Explanation: Because then they would both have traits of the other one. They would have a different colored body then regular ones.
How does process of becoming pregnant involving fertilization?
Sensory receptors Categorize the following based on the type of sensory receptor
Sensory receptors often react to one of four types of primary stimuli, chemicals (chemoreceptors) (chemoreceptors) temperature (thermoreceptors) (thermoreceptors) Pressure (mechanoreceptors) (mechanoreceptors) Light (photoreceptors) (photoreceptors).
The kind of stimulus that causes a response in a sensory receptor can be used to categorize sensory receptors. Depending on the type of cell and where it is located in relation to the stimuli it detects, receptors can be categorized structurally. On the basis of the transmission of stimuli, or how the mechanical stimulus, light, or chemical altered the cell membrane potential, they can also be categorised functionally.
Numerous tasks are carried out by sensory receptors in our bodies. Rod and cone photoreceptors react to colour and light intensity during vision. Mechanoreceptors in the inner ear's hair cells pick up vibrations coming from the eardrum while a person is listening.
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Can a psychiatrist perform a physical exam?
Yes, a psychiatrist can perform a physical exam on a patient who is suffering from a mental illness.
Psychiatry is a branch of science or medicine which mainly focuses on the treatment, diagnosis as well as prevention of mental disorders some of which include schizophrenia, bipolar disorder etc. A medical doctor who practices psychiatry is known as a psychiatrist.
The psychiatrists are trained medically and hence they can suggest medications to patients and also perform physical exams on them. Performing a physical exam of the patient is important before prescribing medicine to a patient in order to avoid any serious side effects.
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I’m Giving all my marbles to you pls help
Water vapor in the air forms rain. The rain falls into a pond. A cow drinks from the pond.
Which list best describes the order that water moves through Earth’s spheres in this example?
geosphere, atmosphere, biosphere
atmosphere, biosphere, geosphere
atmosphere, geosphere, biosphere
biosphere, atmosphere, geosphere
The term "spheres" refers to these four subsystems. They are the "lithosphere," "hydrosphere," "biosphere," and "atmosphere," respectively. There are sub-spheres within each of the four spheres.
What are the hydrosphere's five components?
Oceans, freshwater, groundwater, groundwater, glacier water, and water vapour vapour are the constituents.
What use does the hydrosphere serve?
The main significance of the aquatic environment is that it supports a variety of life forms, is crucial to ecosystems, and regulates the atmosphere. All of the water on the Earth is covered by the hydrosphere.
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The term "spheres" refers to these four subsystems. They are the "lithosphere," "hydrosphere," "biosphere," and "atmosphere," respectively. There are sub-spheres within each of the four spheres.What are the hydrosphere's five components?Oceans, freshwater, groundwater, groundwater, glacier water, and water vapour vapour are the constituents.What use does the hydrosphere serve?The main significance of the aquatic environment is that it supports a variety of life forms, is crucial to ecosystems, and regulates the atmosphere. All of the water on the Earth is covered by the hydrosphere.
How did the United States demonstrate its isolationist policy before World War II?
by avoiding alliances and other international relationships
by encouraging alliances and international relationships
by avoiding friendships with other foreign countries
by encouraging independence among states in the US
The US demonstrated its isolationist policy before World War II by avoiding alliances and other international relationships.
Why did the US want to maintain an isolationist nature?Because I wanted to avoid iterating with problems from other countries.Because the US government wanted to focus only on its own problems.Because American society encouraged individualism.Although alliances and international relations are currently not only desirable but necessary for the functioning of the world, in the past many countries adopted an isolationist position in relation to others.
The country that most maintained this type of position was the US, as it wanted to keep its wealth and not get involved in external problems, in addition to keeping the focus on its own disadvantages.
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Draw a food web for the ecosystem, and discuss the flow of mass and energy through the food chain.
Energy flow can also be interpreted as the separation of energy from one trophic level to the next. In the closing process, there is always a withdrawal of the amount of energy through each trophic level of eating-consuming.
The process of energy flow from plants to humans or animals can occur in the food chain or the biomass pyramid.
Plants as primary producers are located at the first trophic level. Then at the second trophic level, there are herbivorous animals that eat plants. Predators that eat herbivores are the third trophic level group, and if there are or are present even larger predators, they will represent an even higher trophic level.
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