Answer:
Hypotonic
Explanation:
there is less concentration in the blood compared to the brain
Answer:
Hypotonic
Explanation:
the blood is hypotonic compared to the matrix of the brain because it has less solutes than the matrix
In the auditory pathway, which of the following is the first to receive input from the spiral organ?
a. primary auditory cortex
b. superior olivary nucleus
c. inferior colliculus
d. cochlear nuclei
e. medial genticulate nucleus
In the auditory pathway, Cochlear nuclei is the first to receive input from the spiral organ.
The cochlear nuclei: What are they?
The auditory nerve sends information from the cochlea to the cochlear nucleus (CN), which is the first central auditory structure. The dorsal (DCN) and ventral cochlear nuclei are formed when the spiral ganglion cells exiting the cochlea split in two.
What is the cochlea's three components?
Scala media (SM), Scala tympani (ST most inferior and ends at the secondary tympanic membrane and the round window), and Scala vestibuli (SV most superior and connected with the vestibule) are the three membranous and fluid-filled canals that make up the cochlear tube, which is made up of a two-and-a-half spiral structure.
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8. How does upwelling affect the ocean ecosystem?
a. It increases the albedo of the ocean surface.
b. It brings nutrients from the ocean floor into the
surface currents.
c. It causes energy transfer that results in El
Niño/La Niña events.
d. It brings infrared radiation from the ocean floor
up to the ocean surface.
e. It brings ultraviolet radiation from the ocean
floor up to the ocean surface.
*THIS IS CLIMATE CHANGE*
The diffrence of a number and 4 thirds 11 thirds. What is the number?
For the word problem, If the difference of a number and the fraction \(\frac{4}{3}\) is \(\frac{11}{3}\), then the number is 5.
How do we solve for the number?The above mathematical problem is a word problem. Word problems are problems that are written in words, rather than in symbols.
To solve for the difference or mystery number, we say, Let x be the number.
The problem states that x - \(\frac{4}{3}\) = \(\frac{11}{3}\),
movin - \(\frac{4}{3}\) to the other side of the equation,
we get x = \(\frac{11}{3}\) + \(\frac{4}{3}\) = \(\frac{15}{3}\)
We solve the fraction by dividing 15 by 3
\(\frac{15}{3}\) = 5
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Which organelle is the location of protein synthesis? (4 points) Chloroplast Lysosome Mitochondria Ribosome
Answer :
ribosomes .
How would transcription be affected if a gene that needed to be expressed was missing its promotor?
Answer:
it can't be used to make a protein in that cell.
Explanation:
If a gene is not transcribed in a cell, it can't be used to make a protein in that cell. If a gene does get transcribed, it is likely going to be used to make a protein (expressed). In general, the more a gene is transcribed, the more protein that will be made.
The transcription is affected as when the gene has not been transcribed the protein will not make. When a gene is transcribed, protein synthesis can happen.
What is gene transcription?Gene expression begins with transcription. To create an RNA molecule, the DNA sequence of a gene must be copied. RNA polymerases, which join nucleotides to create an RNA strand, carry out transcription (using a DNA strand as a template).
A gene cannot be used to produce a protein in a cell if it is not transcribed there. If a gene gets transcribed, it will probably be used to produce a protein (expressed). In general, more protein will be produced the more a gene is transcribed.
Therefore, the transcription is impacted since the protein cannot be produced if the gene is not transcribed. Protein synthesis can take place when a gene is transcribed.
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Population of Rabbits based on Leg Length
Generation
Number with short Number with medium
Number with long
lege
135
155
1
2
3
97
23
22
95
150
5
18
15
13
175
180
97
A student is comparing the leg lengths of the rabbits in a population. She wonders if natural setection is occurring. She asks you to
evaluate her conclusions. Select ALL that are NOT supported by her data.
A)
The rabbits with medium length legs are the most stable and thus will out
survive the others.
B)
Medium length legs appears to be neither an advantage or disadvantage in
the current environment.
The rabbits with longer legs have a selective advantage that allows them
to survive and reproduce.
It is unlikely that evolution is occurring because none of the traits have
disappeared from the population
A predator is the likely source of natural selection in this population as the
rabbits with longer legs are more likely to escape compared with those
with the shorter legs
D)
E)
Answer:A and D
Explanation:
It’s the USA test prep question
The following data indicate that the statement "the medium rabbit leg is stable and evolution is unlikely to happen" is false. Hence, options A and D are the correct options for the statements.
What is the role of natural selection?Natural selection selects organisms that are best suited to their environment, and these individuals multiply to increase their population size. In this case, generation after generation, the population of short-legged rabbits decreased from 23 to 13. This indicates that the small-legged rabbits were eaten by the predators, resulting in a reduction in their number. The number of middle-legged rabbits did not vary much, so they did not gain a selective advantage, but long-legged rabbits easily escaped from predators, and as a result, they rapidly increased in number, and as a result, the small-legged population declined with the increase in long-legged rabbits.
Hence, the medium leg is stable and evolution is unlikely" is false. Hence, options A and D are the correct options for the statements.
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The question is incomplete, the complete question is the below,
Number with short legs (Generation 1 to 6) =23, 22, 20, 18, 15, 13
Number with medium legs (Generation 1 to 6) =97, 98, 95, 97, 96, 97
Number with long legs (Generation 1 to 6) =135, 155, 160, 163, 175, 180
A)The rabbits with medium length legs are the most stable and thus will out survive the others.
B) Medium length legs appears to be neither an advantage or disadvantage in the current environment.
C) The rabbits with longer legs have a selective advantage that allows them to survive and reproduce.
D) It is unlikely that evolution is occurring because none of the traits have
disappeared from the population.
E) A predator is the likely source of natural selection in this population as the rabbits with longer legs are more likely to escape compared with those with the shorter legs.
Which two generalizations can be made based on what you know about cycles of matter in a closed system?
-New-matter is added, and oid matter is destroyed:
-Matter changes its physical form, allowing it to return to its original state.
-The amount of matter within the system remains the same.
-Matter and energy can cross the boundaries of the system.
-The cycle has a well-defined starting and stopping point.
The amount of matter in the system is constant, and the cycle has a clearly defined beginning and end.
How does Physics Define Matter?A substance called matter is made up of several kinds of particles, occupies space, and has inertia. The many sorts of particle each have a unique mass and size according to the principles of current physics.
What exactly is a matter unit?The fundamental building block of the cosmos is the atom. Atoms are referred to be the basic matter units and have a nucleus made up of protons and neutrons with electrons revolving around it. Every component in the periodic table is made up of a unique arrangement of protons, neutrons, and electrons.
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1. Get a flashlight and switch it on.
What do you observe about the
beam it ernits?
Q1. What do
2. Examine the part where the bulb is positioned.
you notice?
Answer:
Explanation:
1. The beam emitted travels along a straight path and it is divergent in nature. It has its radius increasing progressively as the distance away from the source of light increases.
2. It would be observed that the region where the bulb is positioned has denser light beam. This gets fainter towards the edges of the beam and away from the bulb.
Light emitted travels in a straight path and change occurs its radius.
When a flashlight is switch on we observe two things. First that the beam emitted travels in a straight path and second, that its radius increases when the distance between flashlight and object on which light is fall increases.
The part where the bulb is positioned it would be observed that the region where the bulb is positioned has denser light beam at whereas away from the positioned has lighter beam so we can conclude that light emitted travels in a straight path or line.
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Would you be bothered if you were in a restaurant and people came in wearing scrubs? Why or why not?
Scrubs are accepted in restaurants because scrubs have become medical uniforms worn by the medical practioners.
What is Scrubs?Scrubs are a type of sanitary clothing worn by physicians, nurses, dentists, and other workers. It is worn by those who are involved in patient care.
The garment was initially a gown but now includes the shirt and pants worn by scrubs for surgery. Wearing scrubs has become a trend in the profession, as has wearing a white coat or carrying a stethoscope.
Scrubs were in one color, but often came as a dull blue (known as Dr. blue) or mint green. Scrubs are made of cotton, but scrubs made of a blend of polyester and cotton to maintain a wrinkle free dress.
Thus, scrubs are accepted in restaurants because scrubs have become medical uniforms worn by the medical practioners.
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Pituitary dwarfism results from a decreased secretion of.
, which in turn decreases the rate of cell division of
Answer:
Pituitary dwarfism results from destruction of the pituitary gland via a neoplastic, degenerative, or anomalous process. It may be associated with decreased production of other pituitary hormones, including thyroid-stimulating hormone (TSH), adrenocorticotropic hormone (ACTH), luteinizing hormone (LH), follicle-stimulating hormone (FSH), and GH.
Explanation:
Before the clincial trials, drugs are tested in the laboratory. The laboratory trials are not trials on people. What is the drug tested on in these laboratory trials?
Answer:
Explanation:
Before the drugs can be tested on humans they have to be tested using a few other methods first. Firstly they have to complete computer model tests and human cells grown from stem cells. After that, they are tested on animals to see even more possible side effects and how well the drug does. And after the animal and computer and lab tests they can be used in clinical trials.
A scientist injects a drug called rifampicin, which inhibits RNA synthesis, into a bacterium. What is the most likely direct result of this alteration?
The bacterial DNA will stop replicating.
The bacterial DNA will replicate in an uncontrolled way.
The process of protein synthesis will stop in the bacterium.
The most likely direct result of this alteration is that the bacterial DNA will stop replicating. Thus, the correct option for this question is A.
What is Rifampicin drug used for?The drug Rifampin is used to treat tuberculosis (TB) in many different parts of the body. It is also used by patients who have meningitis bacteria in their nose or throat who do not show symptoms of the infection to prevent the spread of the bacteria to other patients.
Rifampin specifically inhibits bacterial RNA polymerase. It is an enzyme that is responsible for DNA transcription, by forming a stable drug-enzyme complex with a binding constant of 10(-9) M at 37 C. The corresponding mammalian enzymes are not affected by rifampin.
Therefore, the most likely direct result of this alteration is that the bacterial DNA will stop replicating. Thus, the correct option for this question is A.
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Proteins are one of the three found in the diet and important structural molecules in living organisms.
a. True
b. False
Aside from Earth's tilt, what other factor contributes to Earth's seasons?
A. the time of the day
B .the energy as heat from the moon C. the angle of the sun's rays and the number of hours of daylight
D. cold or warm air blowing from the oceans
C. The angle of the sun's rays and the number of hours of daylight.
The length of daylight hours and the angle at which the sun's rays hit the Earth's surface both have a big impact on the seasons. The Earth's axis is tilted in relation to its orbital plane as it revolves around the sun.
Because of this tilt, various areas of the Earth's surface get sunlight at varying angles throughout the year. When one hemisphere is inclined towards the sun, more direct sunlight falls there, resulting in longer daylight hours and higher temperatures, giving rise to summer.
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4 How is the DNA described and what does this mean?
Answer:
Deoxyribonucleic acid (DNA) is a molecule that contains the biological instructions that make each species unique. DNA, along with the instructions it contains, is passed from adult organisms to their offspring during reproduction
Explanation:
why do the cytoplasmic strands pass nearer to the cell wall than to the sap vacuole
Transport from vacuoles happen through osmosis and diffusion, they lack plasmodesmata required for the passage of cytoplasmic strands.
All cells with a nucleus have cytoplasmic strands, which are spindle-shaped strands. Their major function is to keep the nucleus in place so that it doesn't move from its original position in the cytoplasm. They are additionally known as plamodesmata.When water enters the cell's vacuole but not the nucleus, plant cells experience turgor pressure.Plant cells have channels called plasmodesmata that cross their cell walls to allow for movement and communication. Strands of cytoplasm from a nearby cell communicate through these open channels called plasmodesmata, which are found in plant cell walls.As a result, unlike sap vacuoles which lack communicating channels, cell walls feature plasmodesmata that let cytoplasmic strands move from one cell to another.
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an acid enviroment for microorgsnisms and protection for the body is provided by the
An acid environment for microorganisms and protection for the body is provided by the stomach.
The stomach is one of the most important organs of the human body that helps in the breakdown of food with the help of stomach acid. It is a muscular sac that is situated in the upper abdominal cavity. The stomach performs a wide range of functions such as mechanical digestion, chemical digestion, and absorption of nutrients. The stomach has a lining of mucous membranes that protect the stomach wall from the corrosive action of hydrochloric acid and digestive enzymes. The pH level of the stomach ranges from 1.5-3.5. This level of acidity helps in the killing of any bacteria, viruses, or parasites that enter the body through food and drink.
The stomach acid also helps in the breakdown of protein molecules and the activation of pepsin, an enzyme that is responsible for protein digestion. The low pH level of the stomach acid is maintained by proton pumps, which are found in the parietal cells of the stomach wall.
The acid environment of the stomach is essential for the growth and survival of beneficial gut bacteria, which help in the synthesis of vitamins, absorption of minerals, and protection against harmful bacteria. In conclusion, the stomach provides an acidic environment for the protection of the body against harmful microorganisms and aids in the breakdown of food for the absorption of nutrients.
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Earth's temperature has increased slightly in the last 100 years. Many scientists believe that
the increase is related to human activities, particularly the burning of fossil fuels. What gas
produced in this process has been most closely linked to rising atmospheric temperatures?
A) soot
B) chlorofluorocarbons
C) nuclear waste
D) carbon dioxide
The gas produced in the burning of fossil fuels that has been most closely linked to rising atmospheric temperatures is carbon dioxide. Option D
What is the burning of fossil fuel?
As a byproduct of combustion when fossil fuels like coal, oil, and natural gas are used to produce energy, carbon dioxide is discharged into the atmosphere.
As a greenhouse gas, carbon dioxide absorbs heat from the sun inside the Earth's atmosphere, creating the greenhouse effect, which causes global warming. The Earth's natural greenhouse effect, which keeps the globe warm enough to support life, is caused by this phenomena.
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Quagga mussels, an invasive species of mollusk originally from
Russia, have been introduced to the lake after being carried in on
the hulls of boats. An assessment of the size of the quagga
mussel problem is needed, along with suggestions to curb their
population growth.
what field of science is this?
This is a problem in the field of ecology.
The problem of quagga mussels in the lake is an ecological issue that requires scientific assessment and management.
It falls under the discipline of ecology, which studies the relationships between organisms and their environment.
Ecologists investigate the impacts of invasive species on the ecosystem and devise strategies to control their spread and minimize their effects.
In this case, scientists will need to examine the size of the quagga mussel population, their distribution, and their ecological interactions with native species.
They will also need to recommend measures to prevent further introduction of quagga mussels and to manage their population growth, such as using chemical treatments or biological controls.
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During the process of mountain building, earthquakes sometimes occur along continental-continental converge
boundaries. Which statement best describes the motion of the plates along these boundaries that causes the
earthquakes?
Answer:
The main cause of earthquake is the motion of tectonic plates which occurs due to friction.
Explanation:
The tectonic plates moves slowly inside the earth crust but the edges of these plates stuck with each other due to friction that occurs during their contact. When these two plates detached from each other, the force of friction converts in a form of wave energy which can be observed in the form of earthquake. Divergent, convergent, and transform are the three types of plate boundaries which are responsible for earthquake.
Answer:
D) The plates smash together with no subduction
Explanation:
Got it right
Where is DNA, or genetic information, found in a eukaryotic cell?
Answer:
The nucleus
Explanation:
DNA info is found in the nucleus of a cell
A crane has a sharp and pointed beak while the duck has a flat beak.Explain why
Answer:
The crane has a sharp and pointed beak adapted for catching and grasping prey. The sharp beak allows the crane to effectively stab and pierce its prey, such as fish, frogs, or small animals. The pointed shape helps the crane to accurately target its prey and secure a firm grip.
On the other hand, the duck has a flat beak, which is better suited for its specific feeding habits. Ducks are primarily filter feeders, and their flat beak enables them to sift through water or mud to collect small organisms, insects, and plants. The flat beak acts like a sieve, allowing the duck to strain out food particles while retaining water.
The difference in beak shape between the crane and the duck reflects their distinct feeding strategies and ecological roles. Each species has evolved its beak shape to optimize its ability to capture and consume the specific types of food sources available in their respective habitats.
Beetles that are members of the family Lampyridae are more commonly known as fireflies. Seen around the world flashing and glowing in the evening hours, they also contribute to pollination and help control pests. Firefly populations are declining across the eastern United States. Scientists are reporting decreased numbers of fireflies appearing for their mating season in late spring. How might human activity be influencing the mating habits of the firefly?
Human activity, such as habitat destruction, light pollution, and pesticide use, can disrupt firefly mating habits by reducing suitable habitats, interfering with their light signals, and harming their food sources.
Human activity can have various impacts on the mating habits of fireflies, leading to population declines.
Habitat destruction: Human activities such as deforestation, urbanization, and agricultural expansion can destroy the natural habitats where fireflies live and breed. Loss of suitable habitat reduces the available mating sites for fireflies.Light pollution: Artificial lights from cities, buildings, and streetlights can disrupt firefly mating signals. Fireflies use bioluminescent flashes to communicate and attract mates, but excessive artificial light can interfere with their ability to see and respond to each other's signals.Pesticide use: The use of pesticides, particularly insecticides, can directly harm firefly populations. Firefly larvae live in soil and leaf litter, and pesticide applications can kill these vulnerable stages, reducing the number of adult fireflies that can mate.Reduction of food sources: Firefly larvae feed on small invertebrates, including snails, slugs, and worms. Human activities like the use of chemical pesticides and habitat destruction can reduce the availability of these food sources, leading to decreased larval survival and, subsequently, fewer adults for mating.Overall, human activity can disrupt firefly mating habits by reducing suitable habitats, interfering with their light signals, harming their food sources, and directly impacting their populations. This can result in declining numbers of fireflies during their mating season.
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When jaw become large enough to hold the permanent teeth . The milk teeth fall and permanent teeth appear
The "exfoliation" or "shedding" of milk teeth is the name of the procedure.
What is the Dentition of Humans?The primary and permanent tooth sets make up the human dentition. Maxillary (upper) and Mandibular (lower) are the two opposing arches in which teeth are arranged. These can be split into their left and right halves along the midline (mid-sagittal plane).
Four Different Teeth Types and Their Purposes
The majority of individuals have 32 permanent adult teeth, which can be classified into four groups:
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Pls help with these two anatomy questions
A. The calcaneus is __ to the toes
B. The scapula is __ to the sternum
The words that best complete the sentences are:
A. The calcaneus is proximal to the toes.B. The scapula is distal to the sternum.What is the Proximal?A. Proximal refers to a body part being closer to the center of the body, or closer to the point of attachment to the trunk of the body. The calcaneus, or heel bone, is proximal to the toes because it is located closer to the body and nearer to the point of attachment to the lower leg bones.
B. Distal refers to a body part being farther away from the center of the body, or farther away from the point of attachment to the trunk of the body. The scapula, or shoulder blade, is distal to the sternum, or breastbone, because it is located farther away from the center of the body and farther away from the point of attachment to the clavicle (collarbone).
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What are laws limiting the number of children parents are allowed to have?
birth regulations
planned parenthood
children's laws
contraception
Im
Answer:
birth regulations
Explanation:
Birth regulations are laws limiting the number of children parents are allowed to have.
birth regulations are laws limiting the number of children parents are allowed to have.
What is Birth Regulation?The process of getting a child out of the uterus, or womb, is known as birth, sometimes known as childbirth or parturition. In the article human embryology, the earlier development of the fetus is discussed.
The article pregnancy discusses the procedure and succession of alterations that occur in a woman's organs and tissues as a result of the growing fetus.
At the end of the first stage, when dilatation is complete, contractions occur more often and with more severe contractions, occurring around every three minutes. A two-fold effect is created with each contraction to aid in the cervix's dilation or opening.
Thus, birth regulations are laws limiting the number of children parents are allowed to have.
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which layer of earth is the thickest and contains hot softened rock?
Answer:
the mantle
Explanation:
How are fungi more like an animal?
Which of the following is considered a gender stereotype?
Question 7 options:
Men have more facial hair than women.
Women stay home and take care of the children.
Men are typically taller than women.
Women can become pregnant and give birth to children.
Answer:
Women stay home and take care of the children
Starch is broken down into individual units of maltose in the presence of an enzyme known as amylase. Which statement best
describes the role of amylase in this reaction?
A. Amylase lowers the activation energy needed for the reaction to occur.
B. Amylase provides the energy, in the form of ATP, needed for the reaction to occur.
C. Amylase donates the water molecules necessary to cleave the bonds between maltose units.
D. Amylase fits into the active site of starch, breaking the molecule into single maltose units.
The statement that best describes the role of amylase in this reaction is to lowers the activation energy needed for the reaction to occur (option A).
What is an enzyme?Enzymes are biological substances and globular proteins that catalyse a biological chemical reaction.
Enzymes enact their operation by reducing the activation energy, which is the energy required for the reaction to start.
According to this question, starch, a polysaccharide, is broken down into individual units of maltose in the presence of an enzyme known as amylase. The amylase as an enzyme acts to lower the activation energy.
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