How does your body sense head position?
Select one:
O a. Fluid displaces the ossicles in the middle ear.
O b. Fluid displaces hair cells in the saccule and utricle.
O c. Fluid displaces hair cells in the cochlea.
O d. Fluid displaces the tympanic membrane.
Answers
The answer to the question is fluid displaces hair cells in the saccule and utricle.
These hair cells are located in the vestibular system and are responsible for detecting the movement and position of the head. The vestibular system is a sensory system that is located in the inner ear. It is responsible for providing information about head movement and position to the brain.
This system consists of two parts: the utricle and the saccule. These structures contain hair cells that are embedded in a gelatinous substance and covered by crystals called otoliths. When the head moves, the otoliths shift and this displaces the hair cells. This movement is detected by the hair cells, which send a signal to the brain. The brain uses this information to help maintain balance and coordinate movement.
The vestibular system also works in conjunction with other sensory systems, such as vision and proprioception, to provide a complete picture of body position and movement. In conclusion, the correct option that completes the sentence is “Fluid displaces hair cells in the saccule and utricle”.
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Related Questions
Most fossils are found in _____ rock. A. Igneous B.Metamorphic C. Sedimentary D. All of the above
Answers
Answer:
metamorphic rock
Explanation:
because most of the fossils are found there
An area on a topographic map
has the following contour line configuration:
First, the lines are fairly widely spaced. Then
they are closely spaced. Finally, they form
concentric circles. Describe the topography
represented by these lines
Answers
The laetoli footprints provide valuable information about the ____ of early hominins.
Answers
Early hominins walked on two legs is the answer.
Laetoli's footprint provides a clear snapshot of early Hominini bipedalism with slightly but significantly different limb postures. These data support the hypothesis that significant evolutionary changes in Hominini bipedalism occurred 36 million years ago.
Laetoli is a prehistoric site in the Enduleni district of the Ngorongoro district in the Arusha region of Tanzania. The site dates from the Pliocene to the Pleistocene and is famous for its Hominini footprints preserved in volcanic ash. The location of Laetoli's footprints is 45 km south of the Olduvai Gorge.
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When the Hubble Space telescope was first launched, it was the most advanced technology of its kind. Astronomers and astrophysicists all over the world celebrated its launch. Why was this event so important to these scientists??
Answers
Answer:
The telescope can see galaxies really far away, and it can "remap" time, to give a view of what it would've looked like
Explanation:
Which type of fascicle arrangement in a muscle would allow for power, but not range of motion?
Answers
The Pennate fascicle arrangement is the kind of fascicle configuration in a muscle that would enable power but not range of motion.
c) Pennate fascicle arrangement
Pennate fascicle arrangement is characterized by short fibers that are arranged obliquely to the tendon, creating a feather-like or penniform appearance. This arrangement allows for a large number of muscle fibers to be packed in a relatively small space, resulting in a greater cross-sectional area and increased power output. However, due to the short fiber length and oblique orientation, the range of motion of muscles with pennate fascicle arrangement is limited.
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Complete Question
Which type of fascicle arrangement in a muscle would allow for power, but not range of motion?
a) Circular fascicle arrangement
b) Parallel fascicle arrangement
c) Pennate fascicle arrangement
d) Fusiform fascicle arrangement
During weeks 17-20, quickening occurs, which is when the __________. a. fetus’ sense of hearing is developing at a rapid pace b. mother can hear the fetus’ heartbeat with headphones c. fetus’ heart rate increases to 150 beats per minute d. mother is able to feel the fetus move inside her womb please select the best answer from the choices provided a b c d
Answers
During weeks 17-20, quickening occurs, which is when the (d) mother is able to feel the fetus move inside her womb.
The period during which a fetus develops inside a woman's womb or uterus is known as pregnancy, it typically lasts about 40 weeks or just over 9 months in humans.
During the course of pregnancy, the fetus develops from being a single cell to a complete individual.
Quickening is the movement of the baby inside the mother’s womb at around 16-20 weeks of pregnancy. It assures the health and growth of the baby inside the uterus. A fetus that is growing well stimulates more quickening movements.
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4. Name the dark, linear, thread-like structures that you can see in some of the onion root tip cells. What Biomolecule of heredity do they contain
Answers
What are Autotrophs?OOOOmust ingest food in order to obtain energy,have the ability to trap sunlight and produce glucose.were probably the first organisms to appear.are also known as consumers.
Answers
Autotrophs are organisms that can synthesize their own food through the consumption of inorganic material and sunlight. Examples of autotrophs are plants and some bacteria.
OPTIONS:
X must ingest food in order to obtain energy.
X were probably the first organisms to appear
X are also known as consumers
ANSWER: have the ability to trap sunlight and produce glucose
If you find an object
that looks like an organism, how might you
determine if your discovery is indeed alive?
Answers
Answer: If it does any of these it is alive: order, sensitivity or response to the environment, reproduction, adaptation, growth and development, homeostasis, energy processing, and evolution.
Explanation: Since all organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, adaptation, growth and development, homeostasis, energy processing, and evolution. When viewed together, these characteristics serve to show you that, your discovery is indeed, alive.
describe in brief the function of heart
Answers
Answer: The human heart is an organ that pumps blood throughout the body via the circulatory system, supplying oxygen and nutrients to the tissues and removing carbon dioxide and other wastes.
Explanation:
Which of the following is not a benefit of wildfires to ecosystems? A) habitat loss B) underbrush reduction C) new growth.
Answers
Which of these best describes the smooth muscle?
a. muscles that control movements inside your body
b. muscles that provide force to move your bones
c. Tissue in the heart
d. Strong connective tissue that attaches muscle to bone
e. muscles that you cannot control
f. muscles that appear banded
g. muscles under your conscious control
Answers
Answer:
Options A , C , E
Hope it helps!!
Smooth muscle is one of the three types of muscles involved in controlling the movements inside your body organs and is involuntary. Thus, options a and e are correct.
What are smooth muscles?Smooth muscles are the non-striated muscle that lacks sarcomeres and striations and thus lacks bands. They are found through the internal body structures and have a variety of functions.
The smooth muscles can be found in the walls of the liver, intestines, pancreas, urinary tract, uterus, etc. but not in the heart. They also have a spindle shape that contains only one nucleus in it.
They are not under the control of the organisms and rather are controlled by the nervous system, skeletal system, chemicals, and hormones.
Therefore, the smooth muscles are involuntary muscles that control the internal structure. Options a and e are correct.
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Would balanced force be the correct answer.Need fast.
Answers
Answer:
at rest
Explanation:
could be
PLEASE HELP ME I am so confused. I put a picture of what the question is asking for!
Answers
Answer:
D, A, G, C, E, B, F
Hope it helps ❤️
Mike is a diabetic and cannot let his blood sugar get too high, what type of biomolecule should he avoid in foods?.
Answers
Mike is a diabetic and cannot let his blood sugar get too high, he should avoid Carbohydrates in foods. A carbohydrate is a biomolecule made up of carbon, hydrogen, and oxygen atoms.
Diabetes is a medical condition in which the body's blood sugar level is not properly maintained. In diabetes, the insulin level or insulin receptor does not function properly.
Diets that have the potential to raise blood sugar levels are not permitted for diabetics. Mike has diabetes, so he shouldn't eat a lot of carbohydrates. The glucose and sugar molecules that result from the hydrolysis of carbohydrates raise the blood sugar level.
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you are growing human cancer cells in a dish. suppose you count 101 cells in interphase and 34 cells in metaphase of 305 total cells. how much time, on average, do these cells spend in interphase?
Answers
To calculate the average time that these cells spend in interphase, we need to use the following formula:
Total time = (number of cells in interphase / total number of cells) x total time of cell cycle
Since the total number of cells is 305, and the number of cells in interphase is 101, we can calculate the percentage of cells in interphase as:
Percentage of cells in interphase = (number of cells in interphase / total number of cells) x 100
= (101 / 305) x 100
= 33.11%
Similarly, the percentage of cells in metaphase can be calculated as:
Percentage of cells in metaphase = (number of cells in metaphase / total number of cells) x 100
= (34 / 305) x 100
= 11.15%
We know that the total time of the cell cycle is the sum of the time spent in interphase and the time spent in mitosis. We can estimate the time spent in mitosis as the time spent in metaphase. So, we can calculate the total time of the cell cycle as:
Total time of cell cycle = (100 / Percentage of cells in interphase) x (number of cells in interphase + number of cells in metaphase)
= (100 / 33.11) x (101 + 34)
= 399.78
Therefore, the average time that these cells spend in interphase can be calculated as:
Average time in interphase = (Percentage of cells in interphase / 100) x Total time of cell cycle
= (33.11 / 100) x 399.78
= 132.12 hours
So, on average, these cells spend about 132.12 hours in interphase.
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To generate a knockout mouse cell line, the best strategy is to use the base excision repair pathway. a) True b) False
Answers
The given statement "To generate a knockout mouse cell line, the best strategy is to use the base excision repair pathway" is false. A knockout mouse is a genetically modified mouse that is missing one or more genes to investigate their function.
The gene that has been knocked out is called a knockout gene. Knockout mice are useful for studying the role of genes in physiology, development, and disease, as well as for validating the therapeutic potential of novel drugs. Knockout mice can be generated through various methods, including homologous recombination, gene editing using CRISPR/Cas9, and gene trapping. These methods all aim to disrupt the function of a specific gene within the mouse genome. The base excision repair (BER) pathway is one of many DNA repair pathways present in cells, which repairs DNA damage caused by the modification of a single nucleotide in the DNA chain.
Base excision repair pathway is not a strategy used to generate knockout mouse cell lines. Although it can be employed to introduce mutations into a specific gene in the mouse genome. The strategy to generate knockout mouse cell lines is homologous recombination, which is the insertion of a modified DNA sequence into the mouse genome, resulting in the disruption of a specific gene's function.
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A solution with a greater number of hydrogen ions (H+) than hydroxide ions is called a(n)
Answers
Answer:
An acid is a solution with more H+ ions than OH- ions.
Explanation: I'm pretty sure acid is correct, if not I'm very sorry.
:D
Which two fit?
Respiration
Photosynthesis
Fossil Fuel Formation
Combustion
Decomposition
Answers
Answer:
Explanation:
There are a few types of atoms that can be a part of a plant one day, an animal the next day, and then travel downstream as a part of a river’s water the following day. These atoms can be a part of both living things like plants and animals, as well as non-living things like water, air, and even rocks. The same atoms are recycled over and over in different parts of the Earth. This type of cycle of atoms between living and non-living things is known as a biogeochemical cycle.
All of the atoms that are building blocks of living things are a part of biogeochemical cycles. The most common of these are the carbon and nitrogen cycles.
Tiny atoms of carbon and nitrogen are able to move around the planet through these cycles. For example, an atom of carbon is absorbed from the air into the ocean water where it is used by little floating plankton doing photosynthesis to get the nutrition they need. There is the possibility that this little carbon atom becomes part of the plankton’s skeleton, or a part of the skeleton of the larger animal that eats it, and then part of a sedimentary rock when the living things die and only bones are left behind. Carbon that is a part of rocks and fossil fuels like oil, coal, and natural gas may be held away from the rest of the carbon cycle for a long time. These long-term storage places are called “sinks”. When fossil fuels are burned, carbon that had been underground is sent into the air as carbon dioxide, a greenhouse gas.
Recently, people have been causing these biogeochemical cycles to change. When we cut down forests, make more factories, and drive more cars that burn fossil fuels, the way that carbon and nitrogen move around the Earth changes. These changes add more greenhouse gases in our atmosphere and this causes climate change.
Carbon cycleThe Carbon Cycle
The element carbon is a part of seawater, the atmosphere, rocks such as limestone and coal, soils, as well as all living things. On our dynamic planet, carbon is able to move from one of these realms to another as a part of the carbon cycle.
Carbon moves from the atmosphere to plants. In the atmosphere, carbon is attached to oxygen in a gas called carbon dioxide (CO2). Through the process of photosynthesis, carbon dioxide is pulled from the air to produce food made from carbon for plant growth.
Carbon moves from plants to animals. Through food chains, the carbon that is in plants moves to the animals that eat them. Animals that eat other animals get the carbon from their food too.
Carbon moves from plants and animals to soils. When plants and animals die, their bodies, wood and leaves decays bringing the carbon into the ground. Some is buried and will become fossil fuels in millions and millions of years.
Carbon moves from living things to the atmosphere. Each time you exhale, you are releasing carbon dioxide gas (CO2) into the atmosphere. Animals and plants need to get rid of carbon dioxide gas through a process called respiration.
Carbon moves from fossil fuels to the atmosphere when fuels are burned. When humans burn fossil fuels to power factories, power plants, cars and trucks, most of the carbon quickly enters the atmosphere as carbon dioxide gas. Each year, five and a half billion tons of carbon is released by burning fossil fuels. Of this massive amount, 3.3 billion tons stays in the atmosphere. Most of the remainder becomes dissolved in seawater.
Carbon moves from the atmosphere to the oceans. The oceans, and other bodies of water, absorb some carbon from the atmosphere. The carbon is dissolved into the water.
Carbon dioxide is a greenhouse gas and traps heat in the atmosphere. Without it and other greenhouse gases, Earth would be a frozen world. But since the start of the Industrial Revolution about 150 years ago humans have burned so much fuel and released so much carbon dioxide into the air that global climate has risen over one degree Fahrenheit. The atmosphere has not held this much carbon for at least 420,000 years according to data from ice cores. The recent increase in amounts of greenhouse gases such as carbon dioxide is having a significant impact on the warming of our planet.
Explanation of how the wrong lipid would affect a cellular
process. Be specific.
Elevante hot for
-
Answers
Answer:
In all instances the lipids are fluid at temperatures at which the organism normally exists. In general, the higher this temperature. the higher the lipid melting point; the lower the temperature, the lower the lipid melting point.
Explanation:
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Design a fair test to compare the thermal conductivity of iron and aluminium. State an hypothesis, list the apparatus you need and write down a short step-by-step method. Identify the independent variable, dependent variable and any variables that must be kept constant.
Answers
By heating metal rods made of both iron and aluminum using a heating device and timing how long it takes for the temperature to rise a specific amount, you can create an unbiased test to compare the thermal conductivity of the two metals.
The idea is that iron conducts heat more efficiently than aluminum. The equipment required are two metal rods of equal length and diameter, one of iron and the other of aluminium, as well as a thermometer and a timer.
The type of metal being tested (iron or aluminum) is the independent variable, and the time it takes for the temperature to rise is the dependent variable. The length, diameter, amount of heat delivered and the starting temperature of the metal rod are all variables that need to be held constant.
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Trinucleotide repeat disorders are hereditary diseases caused by mutant genes containing an increased number of repeats of a DNA trinucleotide sequence. Which sequence(s) contain a trinucleotide repeat
Answers
This question is incomplete. The full question is:
Trinucleotide repeat disorders are hereditary diseases caused by mutant genes containing an increased number of repeats of a DNA trinucleotide sequence. Which sequence(s) contain a trinucleotide repeat
a)...CAC GGA AGA AGA AGA AGA AAT AGAC...
b)...AGC GAC AGC AGC AGC AGC AGC AAG T...
c)...TTC ACT GTC ACT GTC ACT GTC ACT GTC C...
d)...CAC GGC GGC GGC GGC GGC ATC GC...
e)...GGC AGGC AGG CAG GCA GGC AGG CTG...
Answer:
a)...CAC GGA AGA AGA AGA AGA AAT AGAC...
b)...AGC GAC AGC AGC AGC AGC AGC AAG T...
d)...CAC GGC GGC GGC GGC GGC ATC GC...
Explanation:
Trinucleotide repeat is a genetic mutation where a crack of three nucleotides is repeated, next to each other, so many times that it leaves the DNA molecule unstable.
This mutation is capable of causing errors in the reading of DNA, which results in disorders and syndromes in the affected organism.
The three strands of DNA shown above show this mutation.
Data was collected concerning Galapagos bird beak size over time. There are several species finches, and they are also known as
Darwin's Finches. These finches share the same habits and characteristics except for one; they all have different shaped and sized
beaks. The differences in their beaks might be the most important aspect of their survival. Around 1977, there was a huge drop in
finches with small beaks while there was a great increase in large-beaked birds. How can you explain this?
A)
The small-beaked finches were prey for larger animals.
B)
The large-beaked birds preyed on the small-beaked birds.
Available food changed and the small beaked birds could not readily adapt.
D)
Competition for food favored large beaks; the small beaked birds died off.
Answers
The struggle among Darwin's Finches, which is especially fierce during dry spells due to food scarcity, benefits those who are most adapted to their environment, according to the best conclusion.
Different finches species have nutritional specializations that are characterized by variations in their beaks due to diverse ecological settings on the same island.
Additionally, it has been demonstrated that finches that live in highly planted zones have a distinct call than those that reside in less vegetated areas, expanding their spectrum of mating calls.
A couple that belongs to the same milieu (environment) is more likely to be discovered as a result of this event, and it is from that point that the stabilization of genetic traits unique to the ecological environment occurs.
With this information, we can conclude that competition, which is particularly severe in periods of drought due to food shortages, favors the individuals most adapted to their environment. Because they have a greater chance of survival and, therefore, of reproduction, their particular genetic characteristics tend to be passed on to subsequent generations.
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the relative concentrations of atp and adp control the cellular rates of ________________.
Answers
The relative concentrations of ATP and ADP control the cellular rates of metabolic processes.
Cellular respiration is the process that produces ATP in living organisms. It is the biochemical pathway that releases energy stored in food molecules and uses it to produce ATP from ADP and inorganic phosphate. The energy released in cellular respiration is used to power the activities of the cell.
The relative concentrations of ATP and ADP control the cellular rates of metabolic processes. ATP inhibits the rate of ATP-forming processes while it stimulates the rate of ATP-consuming processes. ADP, on the other hand, stimulates the rate of ATP-forming processes while it inhibits the rate of ATP-consuming processes. Therefore, a cell with higher ATP concentration will tend to consume ATP and produce ADP while a cell with higher ADP concentration will produce ATP.
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What do all Organism Need? Select three Options
Nervous System
A Place To Live
Blood
Water
Food
Answers
Answer:
its blood water food
Explanation:
hope this help the person above me is correct
Answer:
your answers are
B. a place to live
D. water
E. food
Explanation:
3
Place the following types of EM radiation in order, from
lowest energy to highest energy: A) Visible light; B) Gamma
rays; C) Radio waves
А д, с, в
B. GA, B
С
B, CA
D C, B, A
Helppp!!!!
Answers
Answer:
B
radio waves, visible light, gamma rays
Answer:
B
C,A,B
Explanation:
1. En una investigación sobre el ADN de una especie animal se ha encontrado que del total de bases nitrogenadas un 30% corresponde a adenina. ¿Cuáles son los porcentajes de las demás bases?
Answers
Answer:
Adenina (30%), citosina (15%), guanina (15%) o timina (40%)
Explicación:
El 30% de las bases nitrogenadas totales lo ocupa la adenina, el 15% de las bases nitrogenadas totales corresponde a la citosina, el 15% de las bases nitrogenadas totales toma la guanina y el 40% restante de las bases nitrogenadas totales lo ocupa la timina. Entonces, al combinar todos estos porcentajes, obtenemos el 100 por ciento del volumen del ácido desoxirribonucleico (ADN).
What kind of mutation would lead to an increase in the expression, or inappropriate expression, of a gene?.
Answers
Answer: A mutation that lowers the efficiency of a repressor of said gene
Explanation:
I hope this helps :D
Chemically-defined generation of human hemogenic endothelium and definitive hematopoietic progenitor cells
Answers
The generation of human hemogenic endothelium and definitive hematopoietic progenitor cells from pluripotent stem cells has been a topic of scientific research in the field of developmental biology.
Hemogenic endothelium refers to a specialized type of endothelial cells that have the capacity to transition into hematopoietic stem and progenitor cells, which are the precursors for all blood cell lineages. Definitive hematopoietic progenitor cells are the cells that have acquired the ability to generate mature blood cells. The chemically-defined generation of human hemogenic endothelium and definitive hematopoietic progenitor cells involves mimicking the developmental cues and signaling pathways that occur during embryonic development.
These chemically-defined approaches provide valuable tools for studying the development of blood cells and have potential applications in regenerative medicine, disease modeling, and drug discovery. However, it's important to note that despite the progress made, generating fully functional and engraftable hematopoietic stem cells from pluripotent stem cells remains a challenge, and further research is needed to optimize these protocols and improve their efficiency.
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Distinguish between somatic and autonomic nerve fibers.