Answers
Answer:
If there's a higher concentration of solutes outside of the cell (the solution is known as hypotonic solution) then the cell will swell up as the solutes will flow into the water through the process of osmosis. The cell may also swell up & burst (if it's an animal cell).
Related Questions
Match each organ with the germ layer from which it is formed.
Answers
The organ with the germ layer is formed Ectoderm, Mesoderm, and Endoderm.
Matching organs with the germ layer from which they are formed:
1. Ectoderm:
Skin (including the epidermis and nervous system): The ectoderm is the outermost germ layer and gives rise to the epidermis, which is the outer layer of the skin. It also gives rise to the nervous system, including the brain, spinal cord, and peripheral nerves. The ectoderm is responsible for the formation of structures such as hair, nails, sweat glands, tooth enamel, the lens of the eye, and the inner ear.
2. Mesoderm:
Bones: The mesoderm is the middle germ layer and gives rise to the skeletal system, including bones and cartilage.Muscles: The mesoderm also forms the muscular system, including smooth, skeletal, and cardiac muscles.Connective tissue: Connective tissues such as tendons, ligaments, and adipose tissue are derived from the mesoderm.Kidneys: The kidneys, along with the urinary system, develop from the mesoderm.Reproductive organs: The reproductive organs, including the gonads, develop from the mesoderm.Blood vessels: The mesoderm forms the cardiovascular system, including blood vessels, the heart, and blood cells.Spleen: The mesoderm also gives rise to the spleen, a part of the immune system.3. Endoderm:
The lining of the digestive tract: The endoderm is the innermost germ layer and gives rise to the epithelial lining of the digestive tract, including the stomach, intestines, and liver.The lining of the respiratory tract: The endoderm also forms the epithelial lining of the respiratory tract, including the lungs.Pancreas: The endoderm gives rise to the pancreas, which plays a key role in digestion and blood sugar regulation.Thyroid gland: The thyroid gland, involved in hormone production and metabolism, develops from the endoderm.Bladder: The lining of the urinary bladder is derived from the endoderm.Tonsils: The endoderm contributes to the development of the tonsils, which are part of the immune system.Thymus: The endoderm also forms the thymus, an organ involved in immune cell maturation.know more about Ectoderm here:
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Q1) Based on the information in the unit, explain why the number of predators is declining in the
Appalachian region. What effects might this have on the forest?
Q2) Why is it important that diverse areas of the forest are monitored when counting trees? What
could happen if this wasn't done?
Q3) The unit discusses measuring growth in forests. Where else might it be important to measure
the growth of trees? Why?
Q4) If trees in a timber cruise were found to be of many different species, would that mean that the
forest could be used for timber? Explain your answer.
Q5) Why do you think that biodiversity is good for ecosystems?
Answers
Answer:
Q1) The number of predators is declining in the Appalachian region due to factors such as habitat loss, hunting, and disease. This can have significant effects on the forest ecosystem, as the absence of predators can lead to an increase in the populations of their prey. This can, in turn, cause a decrease in the populations of other species that rely on those prey for food, and can also result in an overgrazing of certain plant species, leading to a disruption in the balance of the forest ecosystem.
Q2) It is important to monitor diverse areas of the forest when counting trees because different areas may have different types of trees or different densities of trees. Focusing on only one type of area or tree species could result in an inaccurate count and misrepresentation of the forest's overall health. If diverse areas of the forest are not monitored, it could lead to an incomplete understanding of the forest's ecosystem, and potentially lead to poor management decisions.
Q3) It is important to measure the growth of trees in other areas such as urban environments, parks, and nature reserves. This is because trees provide essential benefits such as shade, air purification, and carbon sequestration, and monitoring their growth can help determine their health and inform management decisions. In urban environments, for example, trees can help mitigate the effects of heat islands and improve air quality.
Q4) The presence of multiple species in a timber cruise does not necessarily mean that the forest can be used for timber. The species of trees, their size, and their density all play a role in determining the economic viability of a timber harvest. Additionally, other factors such as the terrain and accessibility of the forest also need to be considered.
Q5) Biodiversity is important for ecosystems because it provides stability and resilience. A diverse ecosystem can better withstand environmental stressors such as climate change, disease, and natural disasters, as different species may have different adaptations and roles within the ecosystem. Biodiversity can also provide important ecosystem services such as pollination, nutrient cycling, and pest control. Furthermore, a diverse ecosystem can be more aesthetically pleasing and provide recreational opportunities for people.
Which position of the sun, the moon, and the earth that gave the greatest effect on ocean tides?
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It’s when the moon is closest the earth and the tide generating forces are stronger than usual
And
At perihelion -
When the earth is closest to the sun and the tidal RANGES are enhanced
list the four main categories of spinal nerves
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The cervical, thoracic, lumbar, and sacral regions are the four divisions of the spinal cord.
The 31 pairs of spinal nerves are located where?The cervical, thoracic, lumbar, sacral, and coccygeal levels of the spine each have 31 pairs of spinal nerves: cervical nerves in 8 pairs (C1-C8). Thoracic nerves come in 12 pairs (T1-T12). five sets of lumbar nerves (L1-L5). There are 31 pairings in humans: 1 coccygeal, 8 cervical, 12 thoracic, 5 lumbar, 5 sacral, and 5 sacral. Each pair joins a certain part of the body to the spinal cord. Each spinal nerve splits into two roots close to the spinal cord.
What are spinal nerves and what do they do?Between your brain, spinal cord, and the rest of your body, your spinal nerves transmit electrical messages. You may move your body and perceive feelings thanks to these electrical nerve signals (sensory nerve) (motor nerves).
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Help Please….screenshot attached
Answers
The central nervous system is impacted by the tetanus neurotoxin produced by Clostridia tetani by attaching to and preventing the release of neurotransmitters that prevent muscle contraction.
What causes lock-jaw?The release of neurotransmitters causes unopposed muscular contractions or spasms, which causes the typical lockjaw symptoms. Reflexes may be impacted by lockjaw, so be aware of that. Reflexes involve the activation of particular muscle groups in response to a stimulus and are controlled by the spinal cord.
The reflex, however, may be inhibited or altered if the muscles involved in the reflex reaction are harmed by the toxin and are in a condition of prolonged contraction. Furthermore, lockjaw sufferers may find it challenging to elicit or detect responses due to the severity of their muscle spasms.
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Do this and get 100 points.every question done. Please and thank you. NO LINKS
Answers
Answer:
what the first guy said is right
When a controlled experiment is not possible, why do scientists try to identify as many relevant variables as possible?
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Answer:
When a controlled experiment is not possible, why do scientists try to identify as many relevant variables as possible ? You want to find more variables because you need to find the relevant variable in order to identify what is causing the change.
Explanation:
Answer:
Explanation:
When a controlled experiment is not feasible, scientists attempt to identify as many relevant variables as possible because it helps them understand and account for potential confounding factors that may influence the observed outcomes. Here are a few reasons why scientists aim to identify relevant variables:
Reduce Bias: By identifying and accounting for relevant variables, scientists can minimize bias in their observations and analyses. Bias occurs when factors other than the one being studied affect the results, leading to inaccurate or misleading conclusions. Identifying relevant variables allows scientists to control for their potential influence, increasing the reliability of their findings.
Improve Validity: Validity refers to the accuracy and truthfulness of research findings. By identifying and considering relevant variables, scientists can enhance the validity of their research by ensuring that they are examining the actual relationships and effects they intend to study. This strengthens the reliability and generalizability of the results.
Enhance Understanding: Identifying relevant variables can provide a more comprehensive understanding of the phenomena under investigation. It allows scientists to explore potential underlying mechanisms, interactions, and contextual factors that may influence the observed outcomes. This deeper understanding contributes to the advancement of scientific knowledge.
Inform Future Research: Identifying relevant variables, even in non-controlled settings, can guide future research endeavors. By documenting and considering various factors that may impact the research outcomes, scientists can identify areas that require further investigation. It helps in designing more controlled experiments or observational studies in the future to specifically target those variables of interest.
Strengthen Recommendations and Interventions: In fields such as public health or policy research, identifying relevant variables can lead to more informed recommendations and interventions. Understanding the broader context and factors that influence outcomes allows scientists to develop more effective strategies to address the issues at hand.
In situations where controlled experiments are not possible, identifying relevant variables helps scientists better navigate the complexity of real-world scenarios. It allows them to account for confounding factors, improve the robustness of their findings, and contribute to a more nuanced understanding of the research topic.
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GUYS I NEED HELLPPPP
so, what is mitosis and how does it help cells?
Answers
Answer: A process were a single cell divides into two identical daughter cells during Mitosis divides to form two Identical cell the major purpose of mitosis is for growth and to replace worn out cells
Explanation:
How does adenosine triphosphate (ATP) become adenosine diphosphate (ADP)?
ATP stores energy as a phosphate bond is formed.
ATP releases energy as a phosphate bond is formed.
ATP releases energy as a phosphate bond is broken.
ATP stores energy as a phosphate bond is broken.
Answers
The correct answer is ATP releases energy as a phosphate bond is broken.
ATP (adenosine triphosphate) is converted into ADP (adenosine diphosphate) when a phosphate group is removed from ATP, resulting in the release of energy. This process is known as hydrolysis, where water molecules are used to break the bond between the terminal phosphate group and the rest of the molecule.
During cellular metabolism, ATP serves as the primary energy currency of the cell. When energy is required for various cellular processes, the phosphate bond in ATP is broken by an enzyme called ATPase. This enzymatic hydrolysis reaction cleaves off one of the phosphate groups, resulting in the formation of ADP and an inorganic phosphate molecule (Pi). The released phosphate group is then available to be used in other cellular reactions.
The conversion of ATP to ADP is an essential part of energy metabolism in cells. The energy released during this process is utilized to drive various cellular activities, such as muscle contraction, active transport of molecules across cell membranes, and synthesis of macromolecules. Once ATP is converted to ADP, it can be further hydrolyzed to AMP (adenosine monophosphate) if more energy is needed. Ultimately, the energy stored in ATP is released when the phosphate bond is broken, allowing cells to perform their vital functions.
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Present five incidences,as examples, where sports personalities'rights were violated.
Answers
Violation of privacy: Instances where sports personalities' personal information, such as private photos or videos, were leaked without their consent, infringing on their right to privacy.
Discrimination and harassment: Cases where sports personalities faced discrimination based on factors like race, gender, or sexual orientation, leading to unequal treatment or exclusion from opportunities.
Contract disputes: Instances where sports personalities' contractual rights were violated, such as unfair termination, breach of contract, or non-payment of agreed-upon fees.
Doping allegations and false accusations: Accusations of doping or performance-enhancing drug use without sufficient evidence, tarnishing the reputation and rights of the athletes.
Media intrusion and sensationalism: Invasion of privacy through aggressive media coverage, paparazzi harassment, or spreading false rumors, affecting the mental well-being and privacy rights of sports personalities.
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92ml 3.0 fl oz what is the ratio
Answers
The ratio between 92 mL and 3.0 fl oz is 46 : 44, or it can be further simplified to 23 : 22.
To find the ratio between 92 mL and 3.0 fl oz, we need to convert the units to a common measurement. Let's convert 3.0 fl oz to milliliters (mL).
1 fluid ounce (fl oz) is equal to approximately 29.5735 milliliters (mL).
Therefore, 3.0 fl oz is equal to 3.0 * 29.5735 = 88.72 mL (rounded to two decimal places).
Now we can express the ratio between 92 mL and 88.72 mL:
92 mL : 88.72 mL
Simplifying the ratio by dividing both sides by the greatest common divisor, we get:
46 : 44
So, the ratio between 92 mL and 3.0 fl oz is 46 : 44, or it can be further simplified to 23 : 22.
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What role does the hypothalamus play in regulating blood glucose levels
Answers
Answer:
The ventromedial hypothalamus is a crucial nexus in the initiation of the glucose counter-regulatory response which is partially mediated via glucagon release by the pancreas. The arcuate nucleus of the hypothalamus is preferentially implicated in fine-tuning insulin release
Explanation:
PLEASE HELPPP!!!!!!
1) Use the following situation and tables to choose the correct answer.
Randomly sampled students from two high schools were asked what color the district should paint the new stadium. The results are presented in the following tables:
Stadium Color - North Valley High
Color: Survey Results:
silver 30
blue 54
teal 36
Stadium Color - South Hills High
Color: Survey Results:
silver 78
blue 24
teal 18
Make an inference comparing which color each of the two high school populations should choose for the stadium, based upon a qualitative comparison of the sampled data.
A.) North Valley High should choose silver to give the minority of the students who selected silver a win in the selection process. South Hills High should choose teal because a minority of their sampled students selected the color teal than other colors.
B.) North Valley High should choose blue because more of the sampled students selected the color blue compared to the other colors in the survey. South Hills High should choose silver because more of the sampled students selected the color silver than other colors.
C.) North Valley High should choose teal because that color was selected between the other two colors and would appeal to a broader base of students. South Hills High should choose blue in order to appeal to a broader base if its students.
Answers
North Valley High should select blue because more of the sampled students picked the color blue compared to the other colors in the survey. South Hills High should select silver because more of the sampled students picked the color silver than other colors.
This is the correct inference based on the given data. The survey results show that blue was the most popular color among the North Valley High students, and silver was the most popular color among the South Hills High students. Therefore, it would make sense for each high school to choose the color that was most popular among their respective student populations.
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6. Rebecca wants to see if her kitten prefers new chicken flavored treats over her
usual beef flavored treats. She puts 10 chicken treats in one bowl and 10 beef
flavored treats in another bowl. She sees which treats her kitten eats first and
repeats this experiment for 3 days,
a. Independent Variable =_
b. Dependent Variable =
c. Control =
Answers
Answer:
independent: treat flavor
dependent: which treat the kitten eats first
control: beef flavored treat
Explanation:
In Rebecca's experiment, the independent variable is the type of treat, the dependent variable is the kitten's preference of treat, and the control includes factors such as the number of treats in each bowl and the timing of the experiment.
Explanation:In this experiment, the independent variable is the type of treats given to the kitten, either chicken flavored or beef flavored. The dependent variable is the kitten's preference, determined by which bowl the kitten eats from first. The control could be factors like the number of treats in each bowl (which is kept constant at ten), the time of the experiment, the location of the bowls, etc, which are kept unchanged in the experiment to ensure that any change in the kitten's behavior can be attributed to the change in the variable being tested, not due to some extraneous factors.
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I will give 20 points!
What has happened to Cinder in Chapter 7 and 8?
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What best describes the purpose of taking vitamin supplements?
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the myelin sheath consists of
Answers
breathing in physical phenomenon. what movement does happen when a person breathe in?
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When a person breathes in, the diaphragm contracts and the lungs expand, creating a vacuum that draws air into the lungs. The air is then circulated through the lungs, where oxygen is absorbed and carbon dioxide is released.
What should know about the body parts that functions when you breath-in?The diaphragm is a vital muscle in inhaling (breath-in) and exhaling, separates the chest cavity from the abdominal cavity.
When the diaphragm contracts, it flattens and moves down. This increases the space in the chest cavity, which causes the lungs to expand. The lungs are elastic, so they expand when the space around them increases.
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why do some animals eat their own kind
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To answer your question, some creatures inflict all manner of horrible torments on others in order to feed and reproduce, or even just to play. Many species across the animal kingdom are cannibals, eating members of their own species for sustenance or dominance
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How are genes expressed into visible traits, such as eye color or tail length?
A) They are instructions for how sugars are transported in the body
B) They tell cells how to grow
C) They are instructions for how new new cells should divide
D) They are instructions for how proteins should be made
Answers
Answer:
D
Explanation:
What is the biggest error, methodologically, in the following scientific study? "The goal of the study was to determine whether the ebola virus is as deadly in rhesus monkeys as it is in gorillas. I took a sample of four healthy rhesus monkeys and four healthy gorillas. The animals were a random mixture of sexes and ages. I arranged eight cages so that each animal would be in a separate cage, and I made sure there would be no contact among the cages that would allow transmission of the virus. Then I obtained a sample of the ebola virus from the National Institute of Infectious Diseases and injected all the monkeys and gorillas with the same size dose. At the end of four days, I noticed that all the gorillas were dead but only one of the monkeys was dead. An autopsy revealed that three of the four gorillas had died of ebola fever but that the fourth, nicknamed Curious George, had died of internal bleeding after swallowing the small pair of scissors that were left within reach of its cage. The dead monkey had died of ebola fever. At the end of two months there were no more deaths. I concluded that my dosage of the ebola virus is three times as likely to be deadly to gorillas as it is to rhesus monkeys, but I recommended repeating the study to see if the percentages of deaths due to ebola fever remained steady over a wide range of dosages of the virus."
Answers
Answer:
The sample obtained for the study is not enough. Also, a control group is not established thus making the study erroneous.
Explanation:
The total sample size of 4 specimens from each of the two groups does not qualify as an appropriate sample size for the generalization of the results. Furthermore, the mixing of different ages and genders is not suitable for this kind of sample.
Also, the control group is not established where healthy specimens are kept in a similar environment to factor out the effects of the environment and other components on the health/death of the animals.
Help pls!
The rhinophore is
A. species of rudibrnach
B. a specialized set of tentacles
C. A gill for respiration
D. Defisive sting structure
E. All above, depending on the species
Answers
Genes are located on
A. dna
B. Proteins
C. Rna
Answers
Answer:Dna
Explanation:
Some genes act as instructions to make molecules called proteins. However, many genes do not code for proteins. In humans, genes vary in size from a few hundred DNA bases to more than 2 million bases. (medlineplus.gov)
Maths is a difficult subject. (Make exclamatory.)
Answers
Answer:
so true
Explanation:
i wish it was easier
Now choose one of the resources used for energy production that you have studied in this lesson. Describe how the way humans use or obtain this resource might impact the natural resource you described in part A. If you don’t think the natural resource in part A is affected, explain why.
Answers
Answer:
HERE
Explanation:
One resource used for energy production that can impact the natural resource of ozone layer depletion is coal. Burning coal releases pollutants like sulfur dioxide, nitrogen oxides, and mercury into the atmosphere, which can contribute to the formation of smog and acid rain. These pollutants can also react with other chemicals in the atmosphere to break down ozone molecules, contributing to the depletion of the ozone layer. So, the way humans use coal as an energy resource can have a negative impact on the ozone layer and the environment.
True or False?The sun is the only star in our galaxy.
Answers
A galaxy is composed of numerous solar systems. These systems are composed of stars, planets, dwarf planets, asteroids, and comets.
ANSWER: False
A scientist hypothesizes that the temperature at which an alligator's egg is incubated will determine whether the alligator will be male or female. The independent variable is
Answers
Answer:
9
Explanation:
(iii) 2. (a) (i) IV: V: VI: VII: VIII: State two fi The diagram below is an illush. in mammals. Study it and answer questions 2(a) to 2(f). VI- V VII les involved in the circulation of blood Lok (ii) Identify the parts labelled I to VIII. I: II: III: VIII Pulmonary vein 11 111 IV Name two features that show that the structures are possessed by humans. ria [2 marks]
Answers
The two blood vessels involved in the circulation of blood shown in the diagram are the pulmonary vein (VI) and the pulmonary artery (VII). The pulmonary vein carries oxygenated blood from the lungs to the heart, while the pulmonary artery carries deoxygenated blood from the heart to the lungs.
The parts labelled in the diagram are as follows: I- Superior vena cava, II- Right atrium, III- Tricuspid valve, IV- Right ventricle, V- Pulmonary valve, VI- Pulmonary vein, VII- Pulmonary artery, VIII- Left atrium.
Two features that show that the structures are possessed by humans are the presence of four-chambered hearts and the existence of a closed circulatory system. The four-chambered heart in humans allows for efficient separation of oxygenated and deoxygenated blood, ensuring that oxygenated blood is supplied to the body's tissues. The closed circulatory system in humans ensures that blood is transported within blood vessels, preventing blood from coming into direct contact with other body tissues and organs. This system allows for the efficient transport of oxygen and nutrients to the body's tissues, while also removing waste products such as carbon dioxide. These features are critical for the survival of humans, as they ensure that oxygenated blood is supplied to all body tissues, promoting overall health and well-being.
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what i. Growth of body tissues is the result of:
A. Mutualism B. Meiosis C. Metamorphosis D. Mitosis
s geography?
Answers
a shark's sharp teeth would be an example of a(n)
A-structural adaptation
B-behavioral adaptation
C-instinctual adaptation
Answers
Shark's sharp teeth is a good example of a structural adaptation.
What is Structural adaptation?These refers to the physical characteristics of organisms which make them able to survive in the environment.
Sharks have sharp teeth which makes it catch preys as food for its survival in the ecosystem. This therefore makes the option A the most choice in this scenario.
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