After initiation of CPR and one shock of VF, A second shock is delivered and chest compressions are immediately resumed. An IV was in place. For the next intervention, you should give epinephrine 1 mg IV / IO.
Epinephrine 1 mg is used bluntly during CPR to increase ROSC (Return of spontaneous circulation) rates and survival to hospital discharge. Epinephrine has a more pronounced therapeutic effect when given early in a resuscitation attempt, especially in non-shock cardiac arrest.
Arterial pulse palpation and end-tidal CO2 monitoring are typically used to detect the return of spontaneous circulation (ROSC) during chest compression.
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consider a hypothetical signaling pathway where the initiating signal is a, the terminal response is e, and there are three intermediate components, b, c, and d, such that the complete pathway is a-b-c-d-e. experimentally, you determine that e acts to simulate a. this is an example of
This is an example of Positive feedback
In contrast to negative feedback, positive feedback occurs when an output is used as a signal to increase further response of the output. In other words, if process A results in consequence E, E reinforces process A, resulting in a cascade where more of E occurs, which causes more of A to occur, and so on.
That is to say, E signals to A to continue the sequence of reactions leading to output E in itself. In most cases, positive feedback always acts to elicit a response from the initiating or preceding steps in a pathway. It is called positive feedback because the result of the action is to amplify the output of a process.
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Ichthyosaurs were aquatic dinosaurs. Fossils show us that they had dorsal fins and tails, as do fish, even though their closest relatives were terrestrial reptiles that had neither dorsal fins nor aquatic tails. The dorsal fins and tails of ichthyosaurs and fish are * 1 point Homologous Examples of convergent evolution. Adaptations to a common environment. Examples of convergent evolution as well adaptations to a common environment
The dorsal fins and tails of ichthyosaurs and fish are examples of convergent evolution as well adaptations to a common environment (option 4).
What is convergent evolution?Convergent evolution is a type of evolution that produces similar features in organisms which are not evolutionary-related individuals. This type of evolution is different from divergent evolution, which generates different features in evolutionarily related species.
Therefore, we can conclude that convergent evolution leads to the generation of similar features in non related species such as occurring in the dorsal fins and tails of ichthyosaurs and fish.
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Kendis eats predator fish that feed on small oysters in a river ecosystem. the river has become polluted with moderate levels of heavy metals which are absorbed by the oysters. what is the most likely cause of this pollutant on kendis if he keeps eating the predator fish? nothing will happen because the oysters are small. nothing will happen because the fish will stop eating the oysters. kendis will get sick because the pollutants will biomagnify. kendis will get sick because the pollutants will enter the drinking water.
The most likely cause of the pollutant on Kendis if he keeps eating the predator fish is that Kendis will get sick because the pollutants will biomagnify (option C).
What is biomagnification?Biomagnification is the process, in an ecosystem, in which a higher concentration of a substance in an organism is obtained higher up the food chain.
According to this question, Kendis eats predator fish that feed on small oysters in a river ecosystem. However, the river has become polluted with moderate levels of heavy metals which are absorbed by the oysters.
This means that a continuous consumption of the predator fish will lead to a bioaccumulation of the heavy metals in Kendis causing the metal concentration to biomagnify.
Therefore, Kendis will likely get sick due to the bioaccumulation of the metal.
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Which of these statements expresses a scientific theory?
O A. Any cell that contains a nucleus is usually larger than any cell
without a nucleus.
B. A study of material found on a beach showed the presence of
cells.
OC. A material that consists of one or more cells is a living organism.
O D. All living organisms have a body that consists of one or more
cells.
Answer:
D.
Explanation:
when performing phage typing to identify an unknown bacterium, you must have in your possession. group of answer choices antiserum containing antibodies that will bind to the bacterium to be identified dna that will hybridize to the dna of the bacterium to be identified fluorescent molecules that will light up when bound to the dna of the bacterium viruses that will specifically infect the bacterium you're trying to identify rna that will hybridize to the rna of the bacterium to be identified
When performing phage typing to identify an unknown bacterium, we must have into account the viruses that will specifically infect the bacterium we're trying to identify.
What is a bacteriophage?A bacteriophage is a specific virus that is able to infect a given bacterium or a group of bacteria species. The expression phage typing involves the identification of these bacteriophages in a given sample, which may depend on our ability to biochemically identify these entities (ie., these viruses).
Therefore, we can conclude that bacteriophages are viruses that infect bacteria and they can be identified by phage typing.
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the fungi then absorb the deconstructed organic matter as simple compounds. which of the following explains how this affects the surrounding environment
The absorption of deconstructed organic matter as simple compounds by fungi can help in the cleaning of the environment as well as the availability of nutrients in the soil.
How do fungi actions affect the surrounding environment?
Fungi are heterotrophic organisms means they get their food from other organisms in the environment. They get their nutrition by absorbing organic compounds that are present in the environment. Fungi and bacteria are found in soil which are the primary decomposers of organic matter in land ecosystems. Fungi decompose organic matter by releasing enzymes that can break down the decaying material. After absorbing the nutrients in the decaying material. Hyphae break down the organic matter and absorb nutrients that are used in the growth and reproduction of fungi.
So we can conclude that cleaning of the environment, as well as the availability of nutrients in the soil, occurs when the fungi absorb deconstructed organic matter as simple compounds.
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Which produces more energy, aerobic respiration or
fermentation?
a. Fermentation
b. Respiration
c. They produce the same amount of energy
d. It depends on the type of cell
Answer:
aerobic respiration
Explanation:
Aerobic respiration produces more usable chemical energy in the form of ATPs than fermentation because aerobic respiration involves the complete oxidation of glucose and the release of carbon dioxide and water as end products.
air and water pollution are directly responsible for the loss of some species. in their studies of these pollution effects, biologists have determined that are especially sensitive to air pollution, and are now being used as an index of urban air quality. air and water pollution are directly responsible for the loss of some species. in their studies of these pollution effects, biologists have determined that are especially sensitive to air pollution, and are now being used as an index of urban air quality. evergreen trees lichens deciduous trees warblers songbirds
The lichens are especially sensitive to air pollution.
What is air quality index?The Air Quality Index (AQI) is used for reporting daily air quality. It tells you how clean or polluted your air is, and what associated health effects might be a concern for you. The AQI focuses on health effects you may experience within a few hours or days after breathing polluted air.
Urban air quality refers to how “clean” the ambient air is inside of cities with a density, population, and level of activity that generally are recognized as “urban.” Urban air quality generally differs from rural air quality since there are more concentrated sources and the ability for the pollutants in the air to be dispersed are limited by the physical constraints of the urban environment. Urban air quality varies significantly in urban cities in industrialized worlds, and non industrialized world generally because of the difference between control on pollution sources and use of open fires in the urban areas. Nevertheless, illness, deaths, and damage to the environment are still attributed across the world to air pollution.
To grow, lichens obtain their nutrients from the air.
Since lichens have neither roots nor a protective surface, they cannot filter what they take in, so they take in whatever is in the air directly. Pollutants can accumulate in the lichen and become toxic very quickly.
Museum lichen researcher Gothamie Weerakoon believes lichens are excellent indicators of air pollution. She says, "They are very sensitive, respond to pollution within a short period of time, and we have access to very good databases that allow us to understand different species of lichens.
Butterflies, nematodes, frogs and toads are very good indicators of environmental pollutants, but lichens are easier to study and respond more quickly to environmental changes. To grow, lichens obtain their nutrients from the air.
Hence, The lichens are especially sensitive to air pollution.
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You are standing on a street corner and you hear an ambulance siren. The
pitch of the siren seems to be getting higher. What do you expect will happen
next?
A. The siren will get louder and higher as the ambulance moves
toward you.
OB. The pitch of the siren will continue to get higher, but you will not
see the ambulance because it is moving away.
C. The pitch of the siren will change unpredictably as it approaches
you.
OD. The siren will eventually fade as the ambulance moves away from
you.
Answer:
The pitch of the siren will drop and then we know that ambulance is going away .
Explanation:
Answer
The siren will get louder and higher as the ambulance moves
toward you.
Explanation:
the lack of double bonds in phospholipids with saturated fatty acids allow them to pack together tightly, and therefore the membrane is fluid. kinks introduced by double bonds in lipids with unsaturated fatty acids prevent them from packing together tightly, and therefore the membrane is fluid.
The lack of double bonds in saturated fats allows them to pack together tightly, and therefore the membrane is less fluid. The presence of double bonds in unsaturated fats prevents them from packing together tightly, and therefore the membrane is more fluid.
Dietary fats include saturated fat. In addition to trans fat, it is one of the most harmful fats. At room temperature, these lipids are frequently solid. High quantities of saturated fat are found in foods like butter, cheese, red meat, palm and coconut oils, and butter.
Unsaturated fats, which are liquid at room temperature, are thought to be good fats because they have a number of advantages for well-being, including lower blood cholesterol levels, reduced inflammation, stable heart rhythms, and more. Unsaturated fat molecules can be connected by one, two, or three double or triple bonds. These fats exist as liquid oil at normal temperatures. At room temperature, these fats are liquid in the form of oil.
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what does bonsai means?
Bonsai are like tiny miniature trees.
Literally, it means "planted in a container."
Question 3 of 25
Which best explains stream of consciousness?
A. Narration that is written quickly and left unedited
B. Narration that tries to imitate the patterns of real thought
C. Narration that does not emphasize sound and rhythm
D. Narration that focuses on dialogue between characters
B. Narration that tries to imitate the patterns of real thought.
Explains the best stream of consciousness
What is consciousness?Consciousness is the individual awareness of your unique thoughts, memories, feelings, sensations and environment. Basically, your consciousness is your awareness of yourself and the world around you. This awareness is subjective and unique to you.
The Māṇḍūkya Upanishad are the source of Hindu revelations about the four states of consciousness and define these states as waking, sleep, deep sleep, and turya. - the fourth state, which is the state of enlightenment.
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PLEASE HELP, WILL GIVE BRAINLIEST
How do humans reproduce? Explain fully in detail.
Answer:
female conception. females and males have 46 chromosomes in 23 pairs. the female's egg (ovum) has 23 chromosomes, and the male's sperm has 23 chromosomes. fertilization occurs. a zygote is formed, containing 46 chromosomes in 23 pairs. meiosis occurs, and the embryo is formed. after after becoming an embryo after being a 4-cell blastomere and a blastocyst after 6 days, after 23 days, it develops (as an embryo) for 33 days, it becomes a fetus and is usually birthed after 9 months of pregnancy.
Walter Disney - Why are they inspiring and how will you use them as an example to accomplish your goals?
Please help me In your own words I need help I only have 30 minutes
Answer: Take What You Do Seriously
He never took his art or talent for granted. Never would you find Walt Disney in his studio slacking off or procrastinating on his projects. He always took the lead when it came to doing what he loved, never putting his passion on the back burner. another answer might help you
He was thoughtful and creative to the people around him and that made him a natural success, inspiring young kids and even older people that wanted to think outside the box was a possibility. In conclusion, Walt Disney inspired everyone that loved his work and wanted to follow their dreams or even wish upon a star.
Explanation: The key to Walt's legacy of success was turning his failures into learning opportunities, and pushing through when times got rough. “All the adversity I've had in my life, all my troubles and obstacles, have strengthened me
A line of mutated yeast cells, called wee mutants, has no mitochondria. Their name comes from the fact that these cells are very small compared to other yeast cells. Which energy-harvesting processes can wee mutants perform?.
The tiny mutant yeast cells can engage in the glycolysis and fermentation energy-harvesting processes.
These procedures for gathering energy take place outside of the mitochondria. The cytosol serves as this processes' natural habitat. The altered yeast cells lack mitochondria, as was mentioned in the question, making it difficult for them to obtain energy through the tricarboxylic acid pathway or by electron transport, both of which take place inside the inner mitochondrial membrane. Therefore, the wee mutant yeast cells can only harvest energy from sugar (glucose) either by glycolysis or fermentation and this is as a result of the mutation that has robbed them of a mitochondrion.
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the result of adrenergic stimulation varies: adrenergic stimulation of smooth muscles of bronchioles results in a(n) effect while adrenergic stimulation of the heart results in a(n) effect.
Answer:
Inhibitory; excitatory
Explanation: from biology class your welcome!
ach of two parents has the genotype , which consists of the pair of alleles that determine , and each parent contributes one of those alleles to a child. assume that if the child has at least one allele, that color will dominate and the child's will be . a. list the different possible outcomes. assume that these outcomes are equally likely. b. what is the probability that a child of these parents will have the genotype? c. what is the probability that the child will have ?
Each of two parents has the genotype blonde divided by red, which consists of the pair of alleles that determine hair color, and each parent contributes one of those alleles to a child.
If the child has at least one allele, that color will dominate and the child would be blonde.
a. The different possible outcomes are blonde-blonde, blonde-red, red-blonde, and red-red.
b. The probability that a child of these parents will have the dominant genotype is 3/4 or 0.75.
c. The probability that the child of these parents will have a recessive genotype is 1/4 or 0.25.
Genotype is the genetic make-up of a single characteristic, a collection of traits, or a full complex of traits in relation to an organism or group of organisms. Genotype of an organism represents the phenotype of that organism.
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The image shows rock layers and magma under Earth's
surface.
Existing rock layers.
At which location are metamorphic rocks most likely
forming?
A) 1
B) 2
C) 3
D) 4
Under the surface of the Earth, the graphic depicts magma and rock strata, metamorphic rocks most likely to form 3rd layer.
The ideal answer is C.
Igneous rocks: what are they?the frozen magma layer Igneous rock, a subclass of rock, is formed by stone. Extrusive igneous rocks are created by magma that freezes after it has reached the earth's surface. While the earth's frozen magma, which has not yet reached the surface, creates an intrusive rock type. Igneous rocks, on the other hand, refer to all rocks created by the freezing of magma.
What is magma?Magma was present before the occurrence ever began. The foundation of all rock formation is this magma. Due to the presence of magma that was crystallizing beforehand, the formation of rocks was the first.
Under the surface of the Earth, the graphic depicts magma and rock strata, metamorphic rocks most likely to form 3rd layer.
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In 4 sentences explain What happens in the brain during creative thinking.
answer 4 questions for 100 points and brainliest!
1; how does carbon stay in the bottom of the ocean.
A: animals eating dead animals
B: it disappears
C: there is none
2: the mucus trap for hunting
A: false
b; true
3: the physical pump is based on circulation.
A: false
b true
4: why do twilight zone creatures migrate to the surface every night.
A: to visit family
b: to eat organisms and plankton
C: say hello to friends
D: to evade larger pedtaors in the deep
E: both b and d
Answer:
Carbon dioxide is naturally stored in the ocean through chemical processes, either as a dissolved gas or, over a longer time scale, as carbonate sediments on the seafloor
Explanation:q.1
3. Calculating You use a lever to lift a 100-N box onto a shelf. If you push down an effort distance of 1.5 m using an effort force of 60 N, how high will the box rise? (Hint: In this problem, the box's weight is equal to the resistance force.)
If you push down an effort distance of 1.5m using an effort force of 60N, the box will rise distance of 0.9m.
To lift a 100N box onto a shelf. If we push an effort distance of 1.5m using an effort of 60N. The 100N box will rise up by a distance H.
This distance d can be calculated,
Using law of conservation of energy,
As there is no external force on the body the concept of conservation of energy can be used here,
It means that the applied energy will be equal to the output energy in the ideal conditions.
So, we can write,
Energy(applied) = Energy(Output)
mgh = MgH
Where,
mg is the effort force of 60N,
Mg weight of the box to be lift which is 100N,
h is the effort distance of 1.5 meters and,
H is height by which the box will rise.
Putting all the values,
60×1.5 = 100 × H
H = 90/100
H = 0.9m
The 100N box will rise upto a distance of 0.9 meters.
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What is one negative ecological (ecosystem-related) impact on rangelands from grazing livestock?
A. the land owners make too much money
B. the weight of the cattle compacts the soil
C. the livestock are very expensive
D. increased profits for owners
Answer: B the weight of the cattle compacts the soil
Explanation:
ecosystem related would mean that the answer relates to the land. this rules out A and D as they are related to profits off of the land and not necessarily the health/wellbeing of the physical land. C is also out-ruled as the price of the cattle is not a directly going to negatively effect the land.
The weight for the cattle is very relevant as cattle are very heavy and with regular walking/grazing/standing on the rangeland the soil will become harder (aka. compact) resulting in less loose soil for grass to grow.
This can be off set by allowing the land to rest or other means such as plowing occasionally so that it is easier for grass to continue to thrive for feeding the cattle.
What is a nucleosome?
The Answer is C
hope this helps!
A researcher placed a sample of purified lipid in a test tube containing water. She observed the formation of spherical micelle structures in the solution. Ultrastructural analysis of the micelles showed a light outer shell and a denser inner core.
Use the passage to answer the question.
The researcher hypothesizes that the lipid micelles are held together by non-covalent interactions. She tests this hypothesis by vigorously agitating the solution. Which of these observations would provide the STRONGEST support for her hypothesis?
A.
The number of micelles decreases, and the size of the micelles decreases.
B.
The number of micelles increases, and the size of the micelles decreases.
C.
The number of micelles decreases, and the size of the micelles increases.
D.
The number of micelles increases, and the size of the micelles increases.
6 / 24
The hypothesis that supports that micelles are held together by non-covalent interactions are: (B) The number of micelles increases, and the size of the micelles decreases.
Non-covalent interactions are the bonds that are formed without the sharing of electrons. The example of the same are: ionic bonds, hydrophobic interactions, hydrogen bonds and Van der Waals forces.
Micelles are the spherical structures formed by lipids in aqueous solution. The hydrophobic tail of the micelles remains on the inside while the hydrophilic head remains on the outside. Since the micelles are held together by non-covalent interaction, they can break off easily upon constant agitation. This is why the micelle size decreases. Since it is the tendency of lipids to form micelles in aqueous solution, the separated lipids due to agitation will again join together to form another micelle, hence their number increases.
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sometimes the effect of gene interaction is that one gene masks (hides) the effect of another gene at a different locus, a phenomenon known as please choose the correct answer from the following choices, and then select the submit answer button. answer choices epistatic gene. hypostatic gene. duplicate recessive epistasis.
Answer:
c. albinism in snails
Explanation: answer from biology class hope it helps
during mitotic anaphase, chromosomes migrate… along with the other member of the homologous pair toward the equatorial plate. from the poles of the cell toward the equatorial plate. along with their sister chromatids toward one pole. toward the nuclear envelope. from the equatorial plate toward the poles.
During mitotic anaphase, chromosomes migrate from the equatorial plate toward the poles.
Mitotic Anaphase- Each set of chromosomes divides into two identical, individual chromosomes during anaphase. The mitotic spindle is a structure that separates the chromosomes. Each set of chromosomes splits into two identical, autonomous chromosomes during anaphase. The mitotic spindle is a structure that separates the chromosomes.
Chromosome- The thread-like chromosomes that convey the genetic data from to cell are formed of protein as well as a single DNA molecule. Chromosomes are found within the cell's nucleus in both plants and animals, including humans.
DNA- Deoxyribonucleic acid, also referred to as DNA, is a sophisticated molecule that houses all of the data required to create and maintain a organism. DNA is a component of every living thing's cells. In fact, almost all of the cells in a multicellular creature have all of the DNA necessary for that organism.
The given question pattern is wrong, fond below the correct form of the question,
Q. During mitotic anaphase, chromosomes migrate
a. from the poles of the cell toward the equatorial plate.
b. from the equatorial plate toward the poles.
c. toward the nuclear envelope.
d. along with their sister chromatids toward one pole.
e. along with the other member of the homologous pair toward the equatorial plate.
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Help me with question number 1 and 2.
the , the part of the brain that regulates many bodily functions, has been identified as a possible contributor to the development of eating disorders. cerebellum
The hypothalamus, the part of the brain that regulates many bodily functions, has been identified as a possible contributor to the development of eating disorders.
The hypothalamus also called the control coordinating center, regulates various body functions and is also a possible contributor to an eating disorder or 'anorexia'.
In anorexia, an eating disorder, orexigenic factors produce a mixed signal that weakens the hypothalamus and causes disturbances in its regulatory pathways thus allowing the brain to have control over the hypothalamus and ward off the eating signals.
It also regulates and maintains the internal balance of our body, known as homeostasis, through regulating or inhibiting body temperature, increased heart rate, and blood pressure.
In order to keep our body in a stable state, it influences our nervous system and also manages hormonal activities.
Other key processes regulated by the hypothalamus are thirst and hunger, mood swings, sleep cycle, and sex drive as well.
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If all of our senses ultimately send the same kind of electrical signals to the brain, how do we end up with our distinct sensory and perceptual experiences?.
Answer:
The electrical signals are sent to, and processed by, different parts of the brain that enable each of our senses.
Explanation:
what is schizophyta and cyanophta
Answer:
Schizophyte was a botanical classification proposed by Ferdinand Cohn to describe the class of primitive "plants" that reproduce solely by fission. It has been considered synonymous with the Protophyta of Sachs and the Monera of Haeckel
and
Cyanobacteria, also known as Cyanophyta, are a phylum of Gram-negative bacteria that obtain energy via photosynthesis. The name cyanobacteria refers to their color, which similarly forms the basis of cyanobacteria's common name, blue-green algae.
Explanation: