There are several types of brain injuries that can occur. The primary (or direct) brain injuries are intracranial hemorrhage, intraparenchymal injuries, including DAI and contusions, cerebral edema, fractures, and extracranial soft-tissue injury/lacerations.
Specific areas of the brain are frequently damaged by focused and penetrating traumas. Depending on the location of the lesion and the cognitive functions affected in the affected part of the brain, a person with this kind of injury may experience less total damage as a result. In contrast, a person who falls and bangs their head on the ground may suffer damage to both the side of the brain opposite the impact and the portion of the brain at the point of impact.
It's referred to as a coup-contrecoup injury. The shearing and tearing that can happen as the brain travels back and forth within the skull can cause this type of injury to become diffuse. Contusions or bruises that cause swelling are other potential forms of harm. Brain tissue is also torn and sheared as a result of rotational trauma. When a baby is shaken, the brain frequently sustains a variety of wounds, such as coup contra coup, rotation wounds, and edema.
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which best describes what is occuring in this population of sqquirels
Answer:
Number of Squirrels Entering and Leaving a Population after 1 Year Cause of change Number of squirrels Died from predation 2 Born 4 Immigration 10 Left to find food 3 Died from disease 8 Left to find a mate 3 Population growth is decreasing.
Explanation:
What creates a sense not only of enclosure and connection, but also movement and direction?.
Implied line conveys a sense of direction and mobility in addition to enclosure and connection.
An inferred line is what?
An inferred line often depicts a little change in plane.
They are all implied by variations in color, tone, and texture as well as by the edges of objects.
A viewer's path to follow a figure's sight is illustrated here. It directs the viewer's gaze without actually displaying a line.
For instance, in portrait drawing, an inferred line is sometimes utilized across the nose's bridge or along the jaw to make it look more like the edge of a box.
thus, this creates a sensation of movement and direction as well as confinement and connection.
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define electric potential of 1 volt
Answer:
Explanation:
one volt is the potential difference between two points in electric field if one joule of work is done to move a charge of one coulomb from one point to another point against the electric intensity
1v=1w/1q
What are the five largest horse breeds?
The five largest horse breeds in the world, in terms of height and weight, are: Shire, Clydesdale, Percheron, Belgian and Dutch Draft.
Shire: The Shire is the largest horse breed, with an average height of 16 to 18 hands (64 to 72 inches, or 163 to 183 cm) and a weight of 1,800 to 2,400 pounds (816 to 1,088 kg).
Clydesdale: The Clydesdale is a Scottish breed that is known for its size and strength. It has an average height of 16 to 18 hands (64 to 72 inches, or 163 to 183 cm) and a weight of 1,800 to 2,200 pounds (816 to 998 kg).
Percheron: The Percheron is a French breed that is known for its power and endurance. It has an average height of 15 to 18 hands (60 to 72 inches, or 152 to 183 cm) and a weight of 1,800 to 2,600 pounds (816 to 1,179 kg).
Belgian: The Belgian is a draft horse breed that originated in Belgium. It has an average height of 16 to 18 hands (64 to 72 inches, or 163 to 183 cm) and a weight of 1,800 to 2,200 pounds (816 to 998 kg).
Dutch Draft: The Dutch Draft is a breed of draft horse that originated in the Netherlands. It has an average height of 16 to 17 hands (64 to 68 inches, or 163 to 173 cm) and a weight of 1,500 to 2,000 pounds (680 to 907 kg).
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Describe how the jump rope could be used to model the cell membrane of a plant
cell.
Answer: Plants can use the energy from sunlight to turn water and carbon dioxide into. When the cell has enough organelles to make two cells, the division process starts. Let's discuss the process of photosynthesis again, this time taking a closer look at it. Just A long rope to represent the cell wall.
Jump rope is thin and elastic which is made by twisting two threads together which somewhat looks like a cell membrane can be used as a model for plant cell membrane.
What is cell?"The cell is structural and functional unit of life."Every organisms are made up of one or more number of cells.Each cell have various organelles that perform specific functions.What is cell membrane?"It is the outer layer of cell that separates interior of the cells to their surroundings."It is thin and flexible.Cell membrane is composed of bilipid layer in which proteins are embedded on it.It act as a semi-permeable membrane that only only specific molecules to pass through it.Hence, the thin and elastic nature of jump rope could be used to model the cell membrane of a plant cell.
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Which term is defined as masses of rock,earth and/or debris that flow downhill.
A.tsunami
B.aftershock
C.liquefaction
D.landslide
Answer:
The term that defines masses of rock, earth and/or debris that flow downhill is landslide (option D).
Explanation:
When a landslide occurs, a certain amount of the mass of earth is detached or displaced downwards, due to the instability present in a certain area, especially when there is a slope in that land or slope .
The area that is unstable is usually in proximity to a stable ground zone, over which the slide occurs. The instability produced by the phenomenon is due to the fact that this ground has reached its maximum tangential tension.
In a landslide, the movement of rocks, debris and everything in the strip of land that slides can also be observed.
The other options are not correct because:
A. Tsunami is the term for tidal wave, which impedes the displacement of large bodies of water, like waves, that reach the continent.
B. Aftershock is the term that defines the seismic movements after an earthquake.
C. Liquefaction of the earth implies that a compact terrain loses strength and becomes semi-liquid.
Which animal will have more biotic potential. A rabbit who gives birth in 4 months or an elephant who gives birth in 18 months? Why?
Answer:
I suppose that a rabbbit who gives birth in 4 months sounds correct.
Explanation:
Biotic potential is described by the unrestricted growth of populations resulting in the maximum growth of that population. Biotic potential is the highest possible vital index of a species; therefore, when the species has its highest birthrate and lowest mortality rate. So the rabbit giving birth in 4 months has better Biotic Potential because it has a more higher rate in population compared to the elephant.
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What elements were formed during the process of nuclear fusion in stars and supernova?
In the centres of most stars, lighter elements like hydrogen and helium are fused to form the most prevalent elements, such as carbon and nitrogen. However, only large stars that die in supernova explosions may produce the strongest elements, including iron.
Large nuclear reactors make up stars. Massive atomic collisions that tear apart atoms in the centre of stars change their atomic structure and unleash a great amount of energy. The result is hot and brilliant stars. Stars are powered by nuclear fusion, an atomic reaction. Because they are so strong, supernovae produce brand-new atomic nuclei. When a big star collapses, a shockwave is created that may trigger fusion reactions in the star's outer shell. Nucleosynthesis, a process that results from these fusion processes, produces fresh atomic nuclei.
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a bacterial genome has been sequenced. which would be the least likely finding? it has introns. eighty-eight percent of its genome is devoted to protein-coding sequences or rna genes. the bulk of its genome is contained in a single chromosome. it has about 8.4 million nucleotides in its genome. it has plasmids.
The least likely finding in a bacterial genome would be that (a) it has introns.
This is because introns are non-coding sequences that are typically found in eukaryotic genomes, but are rare or absent in bacterial genomes.
The other findings are all possible in bacterial genomes. Bacterial genomes are generally smaller than eukaryotic genomes and typically have a higher percentage of protein-coding sequences or RNA genes, with the bulk of their genome contained in a single chromosome.
Many bacteria also have plasmids, which are small, circular pieces of DNA that can replicate independently of the main chromosome and can carry extra genes that can confer benefits to the bacteria, such as antibiotic resistance or the ability to digest unusual substances
Therefore, The correct option is (a) it has introns.
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If a genetic mutation in a plant that produces flowers results in a lack of petals on the flowers, what do you predict would be the most likely consequence to the plant?
It would produce seeds, but the ovary surrounding the seeds would not be able to grow and form a fleshy fruit.
It would reproduce asexually instead of sexually since not all of its necessary reproductive structures would be present.
It would grow taller than other plants, because less energy would be needed to produce flowers and could instead be used for growth.
It would have less reproductive success since it would attract fewer pollinators than plants that produce flowers with petals.
Answer:
Though petals are the important part of a plant but if there are no petals on a flower, the flower will not die. It generally attracts the pollinators such as bees and other insects.
Classify each mutation example as definitely positive, definitely negative, or most likely neutral. Each category has two examples. Beneficial mutations ______Neutral mutations _______Harmful mutations ______Answer Bank :- A mutation causes tumor formation in humans. - A mutation leads to lactose tolerance in humans. - A mutation confers antibiotic resistance in bacteria. - A mutation produces bristled-antennae variants in moths. - A mutation results in blue eye color in humans. - A mutation induces chlorophyll deficiency in plants.
Definitely Positive: A mutation leads to lactose tolerance in humans. This is beneficial because it enables humans to digest lactose, which is a sugar found in milk and other dairy products.
This mutation is beneficial since it increases the ability of humans to digest these products, and thus gives them access to a wider range of food sources.
Definitely Negative: A mutation causes tumor formation in humans. This mutation is detrimental as it can lead to the development of cancerous tumors, which can cause serious medical conditions and even death.
Most Likely Neutral: A mutation produces bristled-antennae variants in moths. This mutation is most likely neutral because it does not have a direct effect on the moth’s ability to survive or reproduce.
The mutation may lead to changes in the moth’s behavior or physical appearance, but it is unlikely to have a significant impact on its survival. Similarly, a mutation that induces chlorophyll deficiency in plants is likely to be neutral, since it does not have a direct effect on the plant’s ability to survive or reproduce.
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In humans, widow's peak (A) is dominant over a continuous hairline (a), and short fingers (B) are dominant over long fingers (b). Two individuals with widow's peak and short fingers have a child with continuous hairline and long fingers. Determine the genotypes of the parents.
Answer:
Both parents are heterozygous for the traits and exhibit the dominant phenotype → AaBb
Explanation:
Available data:
widow's peak (A) is dominant over a continuous hairline (a)short fingers (B) are dominant over long fingers (b)Cross: Two individuals with widow's peak and short fingersF1) a child with continuous hairline and long fingersGenotypes Phenotypes
AA and Aa individuals with widow's peakaa individuals with no widow's peakBB and Bb shorted-fingered individualsbb longed-fingered individualsCross:
Parentals) A-B- x A-B-
Note: the - symbol represents either a dominant or recessive allele.
F1) child with continuous hairline and long fingers → aabb
Each parent provided one allele for each trait to the child. So the child inherited one recessive allele a and one recessive allele b from EACH parent. The fact that both parents could provide one recessive allele to the child for each character, indicates that both parents are heterozygous for the trait. It is the only way of having a child who expresses the double recessive trait.
Parentals genotypes → AaBb x AaBbChild → aabbWhich of the following is considered the control group in this experiment
Answer:
the source
Explanation:
if an artery that supplies blood to a lung lobe was blocked but ventilation to the lobe was unaffected, how would alveolar gas partial pressures change? reddit
Alveolar gas partial pressures change as Oxygen partial pressure increases in the lungs and the partial pressure of carbon dioxide decreases.
Because the artery is blocked, you will not be able to effectively exchange O2 and CO2; consequently, you will have greater partial pressure of O2 in the lungs than you normally would, and artery cannot effectively supply the CO2 that was produced to get expired, resulting in a decrease in CO2 partial pressure. Ventilation is unaffected, meaning that you are still breathing normally (no problem with inspiration or expiration).
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Chickens have 39 chromosomes in their haploid gametes, sperm and egg.
How many chromosomes are found in a chicken's diploid brain cell? *
23
46
78
19
Answer:
Explanation:
Chromosome specimens are prepared by the peripheral blood lymphocyte cultivation, airing and embryonic, with karyotype, G and C band analysis. The results showed that the number of chromosomes of chicken and quail are 2n = 78, including 10 pairs macrochromosomes and 29 minute chromosome, but apparented differences are existed in the morphos of chromosomes, there are comparatively large difference between the number of fringe and the width of fringe of G band stripe of chicken and quail.
Identify FOUR prescription drugs which are commonly abused.
Answer:
Oxycodone
Prednisone
Acetaminophen
Morphine
Explanation:
Answer:
Barbiturates
Benzodiazepines
Codeine
Morphine
three structures in a nerve cell that are found in all animal cells
Answer:
The Neuron Structure
Explanation:
what are the many forms of energy? how is energy either potential of kinetic
Answer:
The different types of energy include thermal energy, radiant energy, chemical energy, nuclear energy, electrical energy, motion energy, sound energy, elastic energy and gravitational energy.
You need energy to do any work, which is why the ability to do any work is energy. Read that again. Potential and kinetic energy are two forms of energy that can be converted into each other. Potential energy can be converted to kinetic energy and vice versa.
Explanation:
Which of the following will NOT affect carrying capacity?
a) amount of food
b) number of predators
c) water pollution
d) unlimited food
Explanation:
https://youtu.be/wmQMBJ_ce3k see this video
What happens to the body when motor neurons are injured?
ANSWER:
Lesions are areas of damage to motor neurons. Damage to upper motor neurons stops the signals your muscles need to move. When your muscles don't move for a long time, they become weak and stiff. Over time, it can become harder to walk and control your movement.
Explanation:
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Evaluate this statement. Is it correct? Pick the option that has the best argument for/against this claim
"Anaerobic respiration is only used when aerobic respiration is not an option."
Answer:
Explanation:
This statement is not entirely correct. While aerobic respiration is the most efficient way for cells to produce ATP (adenosine triphosphate), which is the energy currency of cells, anaerobic respiration can occur even when oxygen is available.
Anaerobic respiration, also known as fermentation, is less efficient and produces less ATP compared to aerobic respiration. However, it can occur in the absence of oxygen or in conditions where oxygen is not readily available, such as during high-intensity exercise when there is not enough oxygen to keep up with energy demand. Anaerobic respiration can also occur in certain microorganisms, such as some bacteria and yeast.
Therefore, a better statement would be "Anaerobic respiration is used when aerobic respiration cannot produce enough ATP to meet energy demand, or when oxygen is not available."
Character displacement differs from resource partitioning because character displacement ________.
Because character displacement is directly linked to the evolution of genotypes that have allowed alternate resource use.
What is resource partitioning ?Asset Apportioning alludes to the division of assets to keep away from interspecific rivalry for restricted assets in a biological system. A transformative variation assists different species with coinciding in an environmental local area.
Asset parceling concentrates on help in deciding the impact of the expansion or expulsion of an animal categories in a specific natural surroundings and the working of a biological system.
In a biological system, life forms require assets, for example, supplements and territories to develop, repeat and live. There are restricted assets present in a territory for which all organic entities contend.
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When organisms
they increase in size.
Answer:
The increase in size and changes in shape of a developing organism depend on the increase in the number and size of cells that make up the individual. Increase in cell number occurs by a precise cellular reproductive mechanism called mitosis.
Explanation:
Is the cell an open or closed system? Explain your
answer using at least one example of a cell
organelle and its function
· In an open system matter and energy can be transferred
· In a closed system only energy can be exchanged
· In an isolated system neither matter nor energy can be exchanged
· The cell has to be an open system because it needs to exchange matter and energy and the only way to do so is through an open system
· As an open system the cell allows nutrients to enter the cell and waste products to exit the cell
· The cell does this through the use of a semi-permeable membrane
· It needs nutrients in the forms of glucose, ions and many other molecules.
· The nutrients can come into the cell through either passive or active transport
· In passive transport the nutrients naturally move from a higher concentration gradient to a concentration gradient.
· During active transport the particle need to move against the concentration gradient. To do this the cell needs energy to transport the materials. The energy comes in the form of ATP.
closed systems exchange energy, but do not exchange what
Answer:
matter
Explanation:
"In thermodynamics, a closed system can exchange energy (as heat or work) but not matter, with its surroundings"
Answer:
In thermodynamics, a closed system can exchange energy (as heat or work) but not matter, with its surroundings
Explanation:
It doesn't exchange matter
How is it possible to explain one parent with curly hair, one parent with straight hair, and
a kid with wavy (in-between) hair?
Answer:
Let's assume curly hair is the dominant trait and trait hair is the recessive trait.
Therefore, our cross is AA x aa. Drawing a Punnett square will then give us all heterozygous individuals.
there for all offspring with have wavy hair
Explanation:
Answer:
Genetic Variation
Explanation:
Mutations, gene flow, and sexual reproduction causes genetic variation. Mutatio is the changes in the sequence of genes in the DNA. Gene flow is the movement of genes from one organism to another, and sexual reproduction, is where new combinations of genes are created.
the concentration of ADP within the mitochondrial matrix would increaseSeveral genetic disorders of mitochondria have now been identified. If such a defect resulted in a less active electron transport chain, what would you predict might occur? (Note: think of this in terms of basic mechanisms: genetic disorders rarely affect just one process.)
If the electron transport chain was less active due to a genetic disorder, it would likely result in a decreased production of ATP and an increased concentration of ADP within the mitochondrial matrix.
The concentration of ADP would increase because the electron transport chain is involved in generating a proton gradient, and this proton gradient drives the synthesis of ATP by ATP synthase. When the electron transport chain is less active, less ATP is synthesized, and the concentration of ADP increases.
The electron transport chain is a sequence of proteins located on the inner mitochondrial membrane. These proteins are involved in electron transfer and ultimately in the generation of ATP, which provides energy to cells.
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In a desert environment that is becoming warmer over time, the average ear length in a jackrabbit population is observed to be longer than in other jackrabbit populations. Which statement best explains how natural selection would have influenced the change in the jackrabbits’ ears?
A.
Jackrabbits with longer ears were better able to find food and water in the warming desert environment.
B.
Jackrabbits in the warming desert environment hybridized with other species of jackrabbits living in the area.
C.
Longer ears are an advantage in the warming desert environment, so jackrabbits with the longest ears were best able to survive and pass on the allele for longer ears.
D.
Longer ears are an acquired trait that occurs when individual jackrabbits can obtain more food energy because the warming desert environment has a longer growing season.
The statement that best explains how natural selection would have influenced the change in the jackrabbits' ears is C: "Longer ears are an advantage in the warming desert environment, so jackrabbits with the longest ears were best able to survive and pass on the allele for longer ears."
In a warming desert environment, longer ears provide jackrabbits with several advantages that increase their chances of survival and reproductive success.
Here's an elaboration on how natural selection would have influenced the change in the jackrabbits' ears:
1)Thermoregulation: Longer ears have a larger surface area and can help dissipate heat more efficiently.
In a warming desert environment, this adaptation allows jackrabbits to maintain a lower body temperature by facilitating heat loss through the ears, reducing the risk of overheating.
2)Sensory perception: Jackrabbits rely on their excellent hearing to detect potential predators or prey.
Longer ears can enhance their auditory capabilities, enabling them to detect faint sounds more effectively.
This advantage helps them in locating food, water sources, and avoiding predation.
3)Cooling through blood vessels: Jackrabbit ears have extensive networks of blood vessels close to the skin's surface, which aids in cooling.
As warm blood flows through the ears, heat is transferred to the surrounding air, promoting efficient cooling and temperature regulation.
4)Natural selection: In the warming desert environment, jackrabbits with longer ears would have had a greater chance of survival and reproduction.
They would be better adapted to cope with the increasing temperatures, find essential resources like food and water, and avoid heat-related stress.
These jackrabbits would pass on the allele for longer ears to their offspring, leading to an increased prevalence of longer-eared individuals in the population over time.
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The movement of water across a membrane moving with the concentration gradient is called
A. facilitated diffusion
B. osmosis
C. active transport
D. None of the above
Answer: B
Explanation: Osmosis is the movement of water through a semipermeable membrane according to the concentration gradient of water across the membrane, which is inversely proportional to the concentration of solutes.
CAN SOMEONE HELP ME Effects of rays and chemicals on cell
Explanation:
They have very high levels of chemical reactivity, and therefore generate indiscriminate chemical reactions
Radiation and electrons bombarded by radiation move haphazardly inside the cell, resulting in damage to the various molecules forming the cell.
Chromosomal DNA inside the. cell nucleus can also be damaged
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