In the middle ear, the hearing ossicles transmit & amplify sound waves. Sound waves go from the malleus, incus, and stapes in that order.
The ossicles began moving as a result of the eardrum's vibrations. The tiniest bones in the human body, the ossicles are essentially very small bones. The names of the three bones—the malleus (hammer), incus (anvil), and stapes—are based on their forms (stirrup). The ossicles magnify the sound even more. The oval window receives vibrations from the eardrum through to the middle ear through the auditory ossicles.In the middle ear, the hearing ossicles transmit & amplify sound waves. Sound waves go from the malleus, incus, and stapes in that order. The fluid in the inner ear is moved by a wave created at the oval window, which activates receptor cells and enables the conversion of mechanical vibrations into electrical impulses. Sound waves reach the outer ear & pass via the ear canal, a small tunnel that connects to the eardrum.
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During the water cycle, water moves
A.
in a continuous cycle.
B.
from the atmosphere to the Earth's surface.
C.
from oceans to the atmosphere.
D.
all of these
2) List ways that you would like to improve your Lab Report: Example: “I don’t like how my conclusion sounds.” “I don’t have enough evidence from lab.” Owl Pellet Lab
Making your title better, making your abstract better, enhancing your opening, enhancing your techniques, increasing your outcomes.
Enhancing your conversation, making your Conclusion Better, strengthening your references.
What are the qualities of excellent report?
An excellent lab report shows the writer's understanding of the ideas behind the data in addition to just presenting the data. It is not sufficient to just report the expected and observed outcomes; you must also explain any differences that emerged, explain how they affected the experiment, and demonstrate your comprehension of the theories the experiment was intended to test. You still need to properly organise and coherently communicate your ideas.
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Calculate the total amount of fibre there would be in a meal containing 200 g of chicken, 200g of rice and 100g of spinach. Show your working.
Predict what would happen to regulation of the lac operon in the lacI gene were moved 50,000 nucleotides upstream of its normal location.
Regulation of the lac operon should be normal. The location of the lacI gene isn't important, because the gene produces a protein that diffuses within the cell to the operator.
The lacI protein experiences a conformational shift upon lactose addition, which alters its affinity for the lac O sequences.
However, a protein made by the lacI gene, which controls the lac operon, prevents RNAP from attaching to the operon's operator?Only once allolactose binds to it and renders it inactive can this protein be eliminated. The lacI gene produces a protein that is referred to as the lac repressor.
If the lac operon system is turned on, what will happen?Only when lactose is present and glucose is absent do the genes come into play. Catabolite activator protein and lac repressor are the two proteins that control how much glucose and lactose is present in the body. Lac repressor prevents transcription of is an operon. It ceases to function as a repressor when lactose is present.
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What is a muckraker? A. a gossip columnist intent on finding the flaws in presidents B. an investigative journalist who wanted to uncover the truth about corruption C. a crime boss able to take advantage of others by rigging government contracts D. a farmer able to raise crops despite the difficulties in obtaining credit
A muckraker is an investigative journalist who wanted to uncover the truth about corruption (option B).
Who is a muckraker?A muckraker is one who investigates and exposes issues of corruption that often violate widely held values; e.g. one who exposes political corruption or the poor conditions in prisons.
A muckraker is synonymous to an investigative journalist who searches for and tries to expose real or alleged corruption, scandal, or other wrongdoing, especially in politics.
The original muckrakers were the journalists who exposed child labor, sweatshops, poor living and working conditions, and government inefficiency in the early 20th century.
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Answer:
B. an investigative journalist who wanted to uncover the truth about corruption
Explanation:
Just took the test and got it right
Which of the following is the process of detecting environmental stimuli and converting them into signals that can be detected by the nervous system?
(A) perception
(B) sensation
(C) top down processing
(D) difference threshold
(E) false alarm
Process of detecting environmental stimuli and then converting them into signals that can be detected by nervous system is called: B) sensation.
What is meant by sensation?Sensation is the process by which we receive information from the environment and our senses respond to a limited range of environmental stimuli. We cannot hear sound of frequencies above 20,000 Hz but dogs can hear them.
Stimuli means an event that causes a functional reaction in a tissue or organ and is the detectable change in the structure of an organism.
Reception is the first step in sensation. Reception is the activation of sensory receptors by stimuli such as mechanical stimuli, chemicals, or temperature.
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Select all that are required for the definition of a transcription factor
1.Binds to a specific sequence
2.DNA Alters the affinity of the polII
3.Alters the topology of the DNA
4.Is located a long distance from the promoter
A transcription factor - Binds to a specific sequence and alters the topology of the DNA.
The correct option is 1 and 3.
Transcription factors are proteins that bind to nearby DNA to help turn certain genes "on" or "off." Transcription factors that function as activators promote the transcription of a gene. Reducers make transcription easier.
It is located near the promoter and alters the topology of the DNA.
An enhancer or silencer is a collection of transcription factor binding sites that may turn a gene on or off in a particular region of the body.
Cells may "decide" whether to express a gene by using transcription factors to execute logic operations and incorporate several sources of information.
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Which statement best describes the relationship between the hypothalamus and the pituitary gland?The hypothalamus produces releasing hormones that promote the release of particular hormones from the anterior pituitary
The statement best describes the relationship between the hypothalamus and the pituitary gland is the hypothalamus produces releasing hormones that promote the release of particular hormones from the anterior pituitary. The correct answer is B
Since your hypothalamus controls it by secreting the "releasing hormones" somatostatin and dopamine through blood vessels in the pituitary stalk, your anterior pituitary interacts with it directly. The production and release of anterior pituitary hormones is either stimulated or inhibited (prevented) by these releasing hormones. Your anterior pituitary and hypothalamus are constantly communicating with one another.
The pituitary gland is referred to as the body's main gland. The anterior pituitary and posterior pituitary are the two primary sections of the pituitary. The pituitary gland releases a number of hormones.
The pituitary gland's operation is controlled by the hypothalamus. Different hormones that release and inhibit are released by the hypothalamus. These hormones function and promote pituitary gland activity. The hypothalamus affects the pituitary gland's secretion of several hormones.
Your question is incomplete but most probably your full question was
which statement best describes the relationship between the hypothalamus and the pituitary gland?
a. the anterior pituitary gland makes hormones that are released by the hypothalamus
b. the hypothalamus produces releasing hormones that promote the release of particular hormones from the anterior pituitary
c. the hypothalamus produces releasing hormones that promote the release of particular hormones from the posterior pituitary
d. the posterior pituitary sends nervous signals to the hypothalamus to prompt the release of hormones
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Homozygous tall x heterozygous
_____ x _____
genotypic ratio: ____ : ____ : ____
phenotypic ratio: ____ : ____
What is the probability of having a heterozygous plant? _____
Mendel knew that the parents' alleles segregated randomly when forming gametes and traits are passed independently of one another.
What is dihybrid cross?Dihybrid cross is a genetic cross for two traits ( like color and shape of the seed). The main purpose of the dihybrid cross that was performed by Mendel was to determine relationship between different pairs of alleles.
When he performed the dihybrid cross, he got the phenotypic ratio 9:3:3:1 corresponding to nine with round and yellow seeds, three with round and green seeds, three with wrinkled and yellow seeds, and one with wrinkled and green seeds.
Therefore, Mendel knew that the parents' alleles segregated randomly when forming gametes and traits are passed independently of one another.
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Chemicals used to kill insects and rodents are
solvents.
herbicides.
pesticides.
dioxins.
Answer:
Explanation:
herbicides.
Scientists have discovered that climate change is affecting how well fish can breathe in water.
Which of these factors is MOST likely the cause?
Ocean acidification speeds the rate at which water flows over fish gills.
Higher water levels reduce currents that carry oxygen from place to place.
Warmer waters hold less oxygen than colder ones.
Large fish are using up all the oxygen before the smaller fish can access it.
provide a brief description of and name two diseases caused by the following types of pathogen: protozoans
Two diseases caused by protozoans are malaria, giardia, and toxoplasmosis.
Malaria:-Malaria is a life-threatening disease that is caused by parasites that are transmitted to people through the bites of the infected female Anopheles mosquitoes.
Giardia:-Giardia is a tiny parasite (germ) that causes the diarrheal disease giardiasis. Giardia was found on surfaces or in soil, food, or water that has been contaminated with feces (poop) from infected people or animals.
Generally, humans get malaria via being bitten by means of an infective female Anopheles mosquito. most effective Anopheles mosquitoes can transmit malaria and they should have been inflamed through a previous blood meal taken from an inflamed character.
Safety towards mosquito bites consists of the usage of mosquito bed nets (ideally insecticide-treated nets), the sporting of garments that cowl the maximum of the body, and the use of insect repellent on exposed skin. type and attention of repellents rely on age and status.
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Which of the following is a type of lipid or composed of lipids?
All of the reponses are correct
triglycerides
plasma membrane
cholesterol
oils
The answers are all accurate. Lipids, or substances consisting of lipids, include triglycerides, plasma membranes, cholesterol, and oils.
Lipids are substances that contain lipids, such as glycerides, plasma membranes, cholesterol, and oils.
Glycerol is esterified into three fatty acid chains with distinct lengths and contents to form lipid molecules known as triglycerides. Saturated or unsaturated fatty acid chains are the two types.
The phospholipid bilayers that make up plasma membranes are lipids. Glycerol, a head with a phosphate connection, and two fatty acid tails make up a phospholipid. Hydrophobic interiors and hydrophilic exteriors characterize phospholipids.
In the blood, a lipid called cholesterol is carried by proteins called lipoproteins throughout the body.
Liquid lipids exist in the form of oils. Lipids share a similar chemical composition. They contain glycerol esters attached to fatty acids in the form of long-chain molecules.
As a result, we can conclude that every response is correct. Triglycerides, cholesterol, plasma membranes, and oils are lipids or lipid-containing compounds.
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The patient is a 69-yr-old Caucasian female with fair skin. She has recently moved to the U.S. and this is the first time she has had this mole examined. It has been developing since she was in her late teens. It is located on her left cheek and is 23 mm in diameter. is it cancerous?
Answer:
Yes, it is cancerous
Explanation:
The most common type of cancer worldwide, skin cancer is a malignant tumour that develops in the skin cells. Thankfully, malignant melanoma, basal cell and squamous cell carcinoma, and other skin cancers seldom affect youngsters. When melanomas develop, they typically start as big, asymmetric, pigmented moles with irregularly coloured borders and a diameter greater than 6 mm. Other indications of malignant transformation include bleeding, itching, and a lump under the skin.
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What is the purpose of our stress response system?
Will mark brainiest please hurry a unit test please hurry
Explanation:
The stress response, or “fight or flight” response is the emergency reaction system of the body. It is there to keep you safe in emergencies. The stress response includes physical and thoughtful responses to your perception of various situations. When the stress response is turned on, your body may release substances like adrenaline and cortisol. Your organs are programmed to respond in certain ways to situations that are viewed as challenging or threatening.
Mutations of keratins in the ________ that resist tensile forces in the skin cause the blistering disease known as epidermolysis bullosa simplex.
A. microtubules
B. microfilaments
C. actin filaments
D. intermediate filaments
Mutations of keratins in the microtubules that resist tensile forces in the skin cause the blistering disease known as epidermolysis bullosa simplex.
Hereditary mutations consist of cystic fibrosis, hemophilia, and sickle cell ailment. other mutations can show up on their very own for the duration of a person's life. those are referred to as sporadic, spontaneous, or new mutations. They have an effect on just a few cells.
A mutation is a alternate in the DNA series of an organism. Mutations can result from mistakes in DNA replication for the duration of cellular department, exposure to mutagens or a viral contamination.
Mutational outcomes may be beneficial, harmful, or neutral, relying on their context or place. maximum non-impartial mutations are deleterious. In popular, the more base pairs that are tormented by a mutation, the larger the impact of the mutation, and the bigger the mutation's probability of being deleterious.
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WILL GIVE BRAINLIEST AND 20 POINTS!!!
The stimulus-response model uses what as a metaphor for understanding human cognition?
The stimulus-response model uses behavior as a metaphor for understanding human cognition.
What is the stimulus-response model about?The stimulus-response model describes a statistical unit such as a neuron. The model predicts a quantitative response to a quantitative stimulus, such as one administered by a researcher.
During the early days of communication research, the stimulus-response model was the guiding perspective. The belief is that a subject is given a stimulus and then responds to that stimulus, resulting in behavior.
It should be noted that it's simply illustrates that the right behavior is important in the acquisition of knowledge. This illustrates the human cognition.
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Hormones are the chemical communicators of which biological system?
Answer:
endocrine system
Explanation:
hormones are produced by the endocrine glands of the endocrine system as a way of sending messages
Activation of naive T cells requires the signal delivered by a peptide:MHC molecule complex binding to the antigen receptor TCR and CD4/8 co-receptor. In addition to this first signal, naive T cells require a co-stimulatory signal delivered by _________ expression of _______ on the surface of an antigen-presenting cell that is recognized by a co-stimulatory receptor _____ on the surface of T cells, thereby leading to ______________ of T cells.
induced
B7 molecule
CD28
proliferation
Naive T cells require a co-stimulatory signal delivered by induced expression of B7 molecules on the surface of an antigen-presenting cell that is recognized by a co-stimulatory receptor CD28 on the surface of T cells, thereby leading to proliferation of T cells.
B7 molecules are the cell surface protein ligands. They acts as ligands for the CD 28 receptor family. The signals produced by them are costimulatory or coinhibitory.
Proliferation is the process of multiplying rapidly of the T cells in immune system. This occurs to create several memory cells for any foreign pathogen or the proliferation occurs in order to fight an infection in the body.
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How are ionic bonds formed?
Responses
A metal gives electrons to a nonmetal.
A nonmetal gives electrons to a metal.
Electrons are shared between metals.
Electrons are shared between nonmetals and metals.
Answer:
A metal gives electrons to a nonmetal.
Explanation:
Ionic bonds are formed when a metal gives electrons to a nonmetal. This creates a positive charge on the metal and a negative charge on the nonmetal. The positive and negative charges are attracted to each other, forming an ionic bond.
vampire bats need to eat often, and their only food is blood. when one bat is unsuccessful at gaining a meal, it returns to a communal roost where another bat is likely to give it a small amount of food. work by carter and wilkinson (2015) suggests that this arrangement meets the conditions needed for love the prisoner's dilemma kin selection reciprocity
Carter and Wilkinson (2015) suggests that this arrangement meets the conditions needed for __reciprocity____.
What is reciprocity ?
One of the fundamental principles of social psychology is the reciprocity principle, which states that we frequently give to others what we have got in return. In other words, you're likely to repay John for whatever favors he extends to you.
In a famous example of reciprocity, vampire bats feed their famished roost mates with their blood. It has since been discovered that they only share food after developing grooming relationships.
Furthermore, reciprocal food sharing happens between vampire bats who are related and those who are not, and it might be advantageous to fitness both directly and indirectly.
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Help please will mark as brainliest!!
There is a mojor relationship between carbon and human activities represented in the model.
What is human activities?Human activities are to the various actions for the recreation, living, or necessity done by the person or the people For instance it includes leisure the entertainment, manufacturing, recreation, of the war, and exercise.
Humans are moving more Carbon into the atmosphere with things like fossil fuels. We are also cutting down trees and other plants that actually take carbon away from our atmosphere through photosynthesis and adding oxygen. This is causing the carbon to get stuck in the atmosphere and contaminating our air.
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The largest form of pathogen is
bacteria.
fungi.
parasitic worms.
protozoa.
Answer:
Hi!
The answer would be C) parasitic worms.
I hope this helped you! :)
peristalsis is regulated in part by the intrinsic stretch reflexes. it is also thought to be stimulated by the hormone.. a. Gastrin b. Secretin
c. Cholecystokinin
d. Glucagon
The inherent stretch reflexes play a function in controlling peristalsis. Cholecystokinin is another hormone that is thought to stimulate it.
What is the function of cholecystokinin?In the small intestine, a hormone known as cholecystokinin is produced. It plays an important role in the digestive process. When fats and proteins enter your small intestine, cholecystokinin forces your pancreas and gallbladder to constrict.
What effect does cholecystokinin have?Following a meal, CCK works in a highly coordinated manner to: (1) control the flow of nutrients through the digestive tract; (2) constrict the gallbladder and increase pancreatic exocrine exudation to aid in digestion; (3) potentiate amino alkaline insulin secretion and postpone gastric emptying to aid in...
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in most of earth's ecosystems, which of the following trophic levels creates the most dead organic material?
The following trophic levels create the most dead organic material Organisms.
The first trophic level consists of autotrophs or primary producers. Autotrophs produce chemical energy from sunlight or inorganic compounds. This level also produces most of the dead organic matter within the ecosystem.
Active organic matter contains readily available energy that can be used by simple soil organisms in the second trophic level of the soil food web. The second trophic level contains simple soil organisms that decompose plants. Decomposers can be primary secondary and tertiary consumers depending on the level of the nutritional pyramid they consume. A worm that eats a dead plant is a primary consumer.
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short segments of newly synthesized dna are joined into a continuous strand by . short segments of newly synthesized dna are joined into a continuous strand by . dna polymerase primase single-strand binding protein ligase helicase
DNA ligases play a key role in maintaining genomic integrity by mending breaks in the phosphodiester backbone of DNA that occur during replication and recombination as well as as a result of DNA damage and subsequent repair.
Consequently, the enzyme Primasa synthesizes a primer, a small RNA fragment, as the first step in the production of DNA. The RNA polymerase known as Primasa uses DNA as a template. Every work by Okazaki begins with a Primer. The DNA polymerase III holoenzyme then creates the correct DNA fragment up until it comes into contact with the following primer. Then, DNA polymerase Ia takes the place of DNA polymerase Holoenzyme III. The function of DNA polymerase I's 5'P-3'OH exonueotic activity.Of order to make a double helix, two polynucleotide chains in deoxyribonucleic acid (DNA) coil around one another. All known organisms and many viruses have genetic information in the polymer that is necessary for their development, operation, growth, and reproduction. Nucleic acids include DNA and ribonucleic acid (RNA). Nucleic acids are one of the four main categories of macromolecules that are necessary for all known forms of life, along with proteins, lipids, and complex carbohydrates (polysaccharides)
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What is an evolutionary tree?
A. the location where the DNA of multiple
organisms differ
B. a map of the locations a species has
existed on earth
C. the fossil record of a species
D. a diagram that maps the evolutionary
progress of organisms and their
developments this is answer
Answer:
D. a diagram that maps the evolutionary
progress of organisms and their
developments this is answer
Explanation:
Phylogeny is the evolutionary history of a species or group of related species and organisms and determines their evolutionary relationships.
Each of the following molecules is processed by glycolysis to lactate. How much ATP is generated from each molecule?
(a) Glucose 6 -phosphate
(b) Dihydroxyacetone phosphate
(c) Glyceraldehyde 3 -phosphate
(d) Fructose
(e) Sucrose
(A) Glucose 6 -phosphate ; ATP is created by converting glucose 6-phosphate to lactate 3. As seen in the image, the purple shaded section is repeated twice (since DHAP is isomerized to PGAL), resulting in the generation of four ATPs.
When fructose 6 phosphate is transformed to fructose 1, 6-bisphosphate, one of these four is used. As a result, the net yield is 3 ATP.
(B) Dihydroxyacetone phosphate ; Two ATPs are created from dihydroxyacetone phosphate. Because the cycle only happens once, either from DHAP or PGAL (glyceraldehyde 3-phosphate),
(C) Glyceraldehyde 3 -phosphate; Two ATPs are created. Because the cycle only happens once, either from DHAP or PGAL (glyceraldehyde 3-phosphate),
(D) Fructose; Two ATPs are created from fructose. Fructose is first turned into fructose 1-phosphate, which is then transformed into glyceraldehyde. Glyceraldehyde is converted to glyceraldehyde 3 phosphate.
(E) Sucrose: 4 ATPs are created from sugar. Sucrose is broken down into glucose and fructose. 2 ATPs from glucose to pyruvate + 2 ATPs from fructose to pyruvate = 4 ATPs overall. (The net glycolysis yield is two ATPs. 4 ATPs are created and 2 are consumed, for a total of 4 ATPs.
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If dna is damaged or incompletely replicated in s phase, the inhibition of which of these molecules prevents the cell from entering m phase?.
cd25 is a molecule. Inhibition of these molecules prevents cells from entering m phase
Mitosis or M phase includes nuclear division and cytokinesis during which her two identical daughter cells are produced. Mitosis includes prophase, prometaphase, metaphase, anaphase, and telophase. Finally, cytokinesis leads to cell division. Cell division occurs in the M phase, which consists of nuclear division (mitosis) followed by cytokinesis (cytokinesis). DNA is replicated in the previous S phase. Two copies of each duplicated chromosome (called sister chromatids) remain glued together by cohesin. Mitosis is usually divided into four stages: prophase, metaphase, anaphase, and telophase. This is illustrated in Figures 14.23 and 14.24 for animal cells.
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(mitosis and the cell cycle fill in the blanks)
the cells at each phase of the cell cycle are shown as being the same size. In reality, the daughter cells are bigger than ___ smaller than ___ the same size as ___ the cells at the end of the G1, S, and G2 phases.
The cells at each phase of the cell cycle are shown as being the same size. In reality, the daughter cells are bigger than the parent cells, smaller than the parent cells, the same size as the parent cells at the end of the G1, S, and G2 phase.
What are mitosis and the cell cycle?Mitosis is defined as the process of cell division that occurs in cells in which the cell grows, divides, and produces daughter cells that have the same number of chromosomes as the parent cells.
The cell cycle refers to the cycle in which the cell passes through four stages to produce two daughter cells from a parent cell.
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