what will happen when a red blood cell is placed in distilled water?
Answers
Because it is 100% water and has no salt, the distilled water outside the red blood cell is hypotonic (it contains less salt than the red blood cell).
The red blood cell will absorb water, expand, and explode. Hemolysis is the process through which red blood cells rupture. When a red blood cell is put in a 0.85% NaCl solution, water travels evenly out and into the cell, and the solution in the cell and the solution around the cell are the same, or in equilibrium. The cell has no net gain or loss of water. The 0.85% NaCl solution outside the red blood cell is isotonic to it.
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Related Questions
The model shows how phosphorous is cycled between organisms and the soil. Based on the model, which components of the ecosystem act as long-term storage of phosphorus?
plant tissues
plant tissues
animal tissues and feces
animal tissues and feces
sedimentary rocks
sedimentary rocks
dead and decaying matter
dead and decaying matter
Answers
The component of the ecosystem that acts as long-term storage of phosphorus is sedimentary rocks.
Phosphorus cyclePhosphorus is one of the important nutrient elements for living organisms. Thus, its biogeochemical cycling is essential to the earth's ecosystem.
The cycling of important nutrient elements is usually between the biotic and abiotic components of the ecosystem. As far as phosphorus is concerned, the component of the ecosystem that acts as the long-term reservoir is the sedimentary rocks.
Through weathering, phosphorus becomes available to plants in the soil. Animals obtain their own phosphorus by consuming plants. When living organisms die, their phosphorus contents return back to the soil.
Phosphorus can be lost in the soil through erosion into rivers. Thus, the floor of water bodies represents another reservoir of phosphorus.
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What is a Objective Summary on Global Warming?
Answers
Answer:
Global warming is the long-term heating of Earth's climate system observed since the pre-industrial period (between 1850 and 1900) due to human activities, primarily fossil fuel burning, which increases heat-trapping greenhouse gas levels in Earth's atmosphere.
Explanation:
Answer:
The study, published last month in the journal Geophysical Research Letters, found that climate change is making summers hotter and longer, while shrinking the three other seasons. ... They found that over the nearly 60-year period, summers grew from an average of 78 to 95 days long
Which cell structures work together to form a pseudopod?
A. cell wall and nucleus
B. eyespot and chloroplast
C. cytoplasm and plasma membrane
D. contractile vacuole and mitochondria
Answers
cytoplasm and plasma membrane
Pseudopodia are formed by some cells of higher animals (e.g., white blood corpuscles) and by amoebas. During amoeboid feeding, pseudopodia either flow around and engulf prey or trap it in a fine, sticky mesh.
What configuration do atoms usually take by forming covalent bonds?
Answers
which of the following philosophies is the most anthropocentric?
Answers
The philosophy that is the most anthropocentric is b. conservationism
An ideology known as conservationism emphasises on prudent use and management of natural resources for the benefit of people. It strongly emphasises the sustainable use of natural resources, the preservation of ecosystems, and overall preservation of biodiversity for benefit of present and future human generations.
Conservationism emphasises value of protecting and conserving nature, but its main focus is on people. It advocates for managing and conserving the environment in a way that maximises the advantages and well-being of human societies. It is the most anthropocentric worldview among the alternatives since it emphasises human welfare and advantages over other considerations when managing the environment.
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Complete Question:
Which of the following philosophies is the most anthropocentric ?
a. ecological footprint
b. conservationism
c. Biocentrism
Vector contact involves contact with __________. a. an infected surface b. contaminated water c. an infected organism d. a carrier organism please select the best answer from the choices provided. a b c d
Answers
Vector contact involves contact with an infected organism. Details about vectors can be found below.
What is a vector?A vector is a carrier of a disease-causing agent or pathogen.
This means that a vector must come in contact with an infected organism to carry the disease-causing organism.
An example is the case of mosquitoes, which carries plasmodium pathogen that causes malaria when it feeds on an infected organism.
Therefore, vector contact involves contact with an infected organism.
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How are a straightedge and compass used to make basic constructions?
Answers
Answer: they are used to measure and keep things precise during constuction
Explanation: because if you watch videos and look up info and research it tells you about their jobs and what they use for their jobs
tips bark at people BARK BARK BARK
Answers
Answer:
You talking about a dog or something
Explanation:
BARK BARK BARK BARK BARK BARK
What do organs combine to form?
O organ systems
O tissues
O organisms
O cells
Answers
Answer:
organ systems
Explanation:
cells combine to form tissues, tissues combine to form organs, and organs combine to form organ systems such as the digestive system.
The answer is:
A.(organ systems)
I took the test, hope this helps!
pls help ill give brainliest and 5 staarts
Answers
2nd is volcano
3rd is subduction
18) The following are true characteristics of prokaryotic cells except A. Complex in cellular structure B. Are unicellular and extremely microscopic C. May occur singly, in pairs, chain and clusters. D. Members are from kingdom eubacteria and arcahaebacteria
Answers
A. Complex in cellular structure
In constructing phylogenetic trees, it is useful to think of monophyletic groups as being defined by ________.
synapomorphies
Answers
In constructing phylogenetic trees, it is useful to think of monophyletic groups as being defined by synapomorphies.
A monophyletic group is a group of organisms that includes a shared ancestor and all of its descendants. They are also known as holophyletic groups. All descendants share a common ancestry with a single branch or root. In other words, it is a group that only includes organisms descended from a shared ancestor. Monophyletic groups are defined by shared derived characteristics, or synapomorphies, in constructing phylogenetic trees.
These are traits that are specific to a particular group of organisms and distinguish them from other organisms that do not have the trait. In cladistics, synapomorphies are used to define monophyletic groups, which are a kind of clade. Synapomorphies are used to define clades because they indicate common ancestry between groups of organisms. Therefore, by identifying synapomorphies, biologists can identify which organisms are related and which are not.
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answer asap
Why can’t you add macrofauna, mesofauna, and microfauna directly to your soil?
Answers
One cannot add macrofauna, mesofauna, and microfauna directly to the soil because they may not survive in the environment of the soil. The organisms require specific environmental conditions to thrive or grow, and these conditions may not be present in the soil.
Additionally, adding these organisms directly to the soil can disrupt the existing soil biology, which could be harmful to the health of the soil .It also can cause the problems such as parasites and disease carriers, leading to soil contamination and poor crop yields. It can also disrupt the existing soil ecosystem, causing the soil to become unbalanced and leading to nutrient deficiencies or an increase in the presence of certain pests.
Additionally, adding macrofauna, mesofauna, and microfauna directly to soil can be difficult to control, and inadequate numbers of these organisms can cause increased competition for resources and a decrease in overall soil fertility.
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HELP URGENT ASAP PLEASE
Instructions: Create an in-depth answer to the following Essential Questions:
How do investigations explain the world around us?
How can models be adjusted to increase accuracy?
For each question, you need to include an overall answer, evidence related to the answer, and an explanation of how the evidence supports the answer.
The answers should be written in long paragraph format.
Answers
ANSWER TO: How do investigations explain the world around us?
Investigations in the field of biology play a critical role in explaining the natural world. Through observation, experimentation, and data analysis, biologists use investigations to understand the mechanisms of life and the interactions between living organisms and their environment. Biologists investigate a broad range of topics, from the structure and function of individual cells to the complex ecosystems of the planet. By using a variety of investigative techniques, such as microscopy, genetic analysis, and ecological surveys, biologists can gain insights into how organisms function, evolve, and interact with each other and their environment. Investigations in biology help us understand how life has evolved over time, how different organisms are adapted to their environments, and how we can preserve and protect the natural world for future generations.
ANSWER TO: How can models be adjusted to increase accuracy?
In the field of biology, models are used to understand complex biological systems and make predictions about their behavior. However, these models are not always accurate and may need adjustments to improve their performance. One way to increase the accuracy of biological models is to adjust the parameters used in the model. For example, if a model predicts the growth rate of a bacterial population, adjusting the parameters such as nutrient availability, temperature, and pH can improve its accuracy. Another approach is to incorporate more data into the model, such as experimental results or observational data. This can help to refine the model and make it more accurate. Additionally, modeling techniques such as machine learning can be used to improve the accuracy of biological models by allowing them to learn from data and make predictions based on patterns. Overall, adjusting models through parameter optimization, incorporation of new data, and the use of advanced modeling techniques can help increase the accuracy of biological models and enhance our understanding of complex biological systems.
By offering rational explanations for natural events, investigations such as scientific experiments, observations, and studies aid in our understanding of the world around us. With the help of these investigations, we may put theories to the test, gather information, and draw conclusions about how the world functions.
Models are frequently employed in research to aid in prediction or improve understanding of complicated systems. By adding new information, strengthening the model's underlying premises, or changing the equations or algorithms that are used to create predictions, models can be improved to boost their accuracy.
We can improve our understanding of complicated systems and generate more accurate predictions about natural events by adjusting models to increase their accuracy. For instance, models can be modified to incorporate fresh information and observations, improving the accuracy of their forecasts over time. Furthermore, models can be improved by changing their underlying presumptions or parameters, which can help to remove biases and better represent the system under study.
In general, research and models are crucial to improving our comprehension of the world around us. We can draw well-informed conclusions and predictions about natural phenomena through the gathering and analysis of data and the creation of precise models, which can ultimately result in new findings and improvements in science and technology.
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I need help with this practice problem solving In your words, give a short summary to my pic
Answers
Answer: The English settlers brought it over from England when they brought supplies to start a new life over
Explanation:
it is found that many regulatory genes have been co-opted for the development of different structures, such as limbs or digits. this is an example of what type of biological research?
Answers
The given statement "it is found that many regulatory genes have been co-opted for the development of different structures, such as limbs or digits," is an example of evolutionary developmental biology or "evo-devo."
This is a relatively new field of research that aims to understand how evolution has led to the development of biological organisms.
Evo-devo seeks to examine the developmental processes that give rise to the complex and diverse structures of living organisms. This is achieved by studying the genetic mechanisms that control how cells differentiate and grow during development and how these mechanisms have evolved over time.
Evo-devo research can help to explain how regulatory genes, which are genes that control the expression of other genes, have been co-opted for the development of different structures.
For example, some of the regulatory genes that control the development of limbs and digits in animals are also involved in the formation of other structures such as wings in birds or fins in fish. evolutionary developmental biology is a new field that studies how the evolution of organisms over time has contributed to the development of diverse and complex biological structures.
Through examining the genetic mechanisms behind the differentiation and growth of cells during development, evo-devo can reveal how regulatory genes, which control the expression of other genes, have been used to create different structures. Some of these regulatory genes are involved in the formation of not only limbs and digits but also wings in birds and fins in fish.
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Select the best answer for the question
19. Why do the proportions of sand, silt, and clay in a soil matter?
O A. Silt should be conserved but not other types of soil.
O B. Plants grow in clay but not other types of soil.
O C. Microorganisms live ingome but not all types of soil.
O D. This determines the texture and water retention of soil
Answers
Answer:
Explanation:
D
What did Francisco Gordillo find on bis explorer?
Answers
Answer:
He found Native Indians
Explanation:
The medulla is considered part of the brain rather than the spinal cord because it ____.
Answers
Answer:
is contained in the skull
Why will the radial velocity method fail to discover an extrasolar planet if the plane of the extrasolar planet’s orbit is oriented perpendicular to the line between Earth and the wobbling star?
Answers
The radial velocity method will fail to discover an extrasolar planet if its orbit is oriented perpendicular to the line between Earth and the wobbling star.
The radial velocity method is a technique used to detect extrasolar planets by observing the wobbling motion of a star caused by the gravitational pull of an orbiting planet. The method measures the Doppler shift in the star's spectral lines, which indicates the star's motion towards or away from Earth.
If the plane of the extrasolar planet's orbit is oriented perpendicular to the line between Earth and the wobbling star, the star's motion caused by the planet will be primarily in a direction parallel to our line of sight. In this case, the radial velocity method will fail to detect the planet, as there will be little to no Doppler shift in the star's spectral lines. This is because the Doppler shift is sensitive only to the component of the star's motion that is directly towards or away from us.
In summary, the radial velocity method is unable to discover an extrasolar planet when its orbit is oriented perpendicular to the line between Earth and the wobbling star because the method relies on detecting the Doppler shift caused by the star's motion towards or away from Earth, which is minimal in this specific orientation.
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two key observations underlying natural selection are that members of a population vary in their and that all species can produce more offspring than the environment can support.
Answers
Two key observations underlying natural selection are that members of a population vary in their inherited traits and that all species can produce more offspring than the environment can support.
Populations of living creatures evolve throughout time by a simple process called natural selection. In fact, it is so easy that it can be divided into five simple processes, which we'll refer to as VISTA in this instance: Variation, Inheritance, Selection, Time, and Adaptation.
The following are some of Darwin's observations that informed his theory of natural selection: Overproduction: Every species will have more foetuses than they can support till they reach adulthood. The same species' members can differ from one another. As a species evolves, it will acquire characteristics that make it more suited to its environment.
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The complete question is:
Two key observations underlying natural selection are that members of a population vary in their ____ and that all species can produce more offspring than the environment can support.
3.How are organisms grouped into producers, consumers, and decomposers?
Where do you fall
Answers
Answer:
Food webs are models to show how organisms are related in an ecosystem based on how they get their energy. The main roles are producers, consumers, and decomposers?
Explanation:
Producers
Producers make their own energy through photosynthesis. All most all plants, But not all, are Producers.
Consumers can be divided into
Primary > Primary consumers get energy by eating producers. They are usually small animals, insects and herbivores.Secondary > Secondary consumers get energy eating primary consumers. Secondary consumers are usually predators.Tertiary > Tertiary consumers get energy by eating secondary consumers. Owls and birds of prey, bears and large predator's, and carnivores are usually tertiary consumers. Humans are also among the tertiary consumers.And lastly Decomposers
Decomposers get by breaking down dead organisms and returning nutrients to the soil. Decomposers are usually fungi-like-mushrooms and bacteria
This excerpt is taken from a speech delivered in 1775 at the Second Virginia Convention, in which Patrick Henry urged the American colonists to fight for independence from the British.
I have but one lamp by which my feet are guided, and that is the lamp of experience. I know of no way of judging the future but by the past, and judging by the past, I wish to know what there has been in the conduct of the British ministry for the last ten years to justify those hopes with which gentlemen have been pleased to comfort themselves and the House. Is it that insidious smile with which our petition has been lately received? Trust it not, sir, for it will prove a snare to your feet. Suffer not yourselves to be betrayed with a kiss, but ask yourselves how this gracious reception of our petition agrees with those warlike preparations which cover our waters and darken our land.
I ask, sir, what means this martial array, if its purpose be not to force us to submission? Can gentlemen assign any other possible motive for it? Has Great Britain any enemy, in this quarter of the world, to call for all this accumulation of navies and armies? No, sir, she has none. They are meant for us: they can be meant for no other. They are sent over to bind and rivet upon us those chains which the British ministry have been so long forging.
Let us not, I beseech you, sir, deceive ourselves. Sir, we have done everything that could be done to avert the storm which is now coming on. We have petitioned; we have debated; we have appealed; we have submitted ourselves before the throne and have begged for its intervention to arrest the tyrannical hands of the ministry and Parliament. Our petitions have been slighted; our debates have produced additional disagreements and insults; our submissions have been disregarded; and we have been spurned, with contempt, from the foot of the throne! In vain, after these things, may we indulge the fond hope of peace and reconciliation. There is no longer any room for hope. If we wish to be free—if we mean to preserve inviolate those inestimable privileges for which we have been so long contending—if we mean not basely to abandon the noble struggle in which we have been so long engaged, and which we have pledged ourselves never to abandon until the glorious object of our contest shall be obtained—we must fight! I repeat it, sir, we must fight!
3
Select the correct answer.
How does the author's use of the word "throne" inform the reader?
A.
It emphasizes the rich, time-honored traditions of the British monarchy.
B.
It implies that the British monarchy commands respect from its subjects.
C.
It represents the rigid authority that Great Britain maintains over the colonies.
D.
It suggests that Great Britain is too civilized to go to war with the colonies.
Answers
A. It emphasizes the rich, time-honored traditions of the British monarchy does the author's use of the word "throne" inform the reader.
What was Patrick Henry's speech to the Second Virginia Convention summarised as?Patrick Henry delivered this statement on March 23, 1775, in protest to intervention from the Royal Fleet that Lord Dunmore, the King's designated governor, had sent in. Mr. Henry was arguing that the Virginia colony needed to form a militia to protect its right to freedom.
In his "Speech at the Virginia Convention," Patrick Henry uses the rhetorical devices of reference and repetition to argue that the colonists should feel that fighting for their independence and rights is vital and that they should do so as soon as feasible.
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Which resource do coal-fired power plants require to generate electricity? plants soil sunlight water
Answers
Answer:
Ores
Explanation:
Answer: sunlight
Explanation:
which statement describes a relationship that is an example of mutualism
Answers
Answer:
D
Explanation:
Mutualistic relationships are relationships in which each party, the bees and flowers, benefits from the interaction in some way.
Answer:
B.
Explanation:
In an antagonistic muscle pair: None of the other answer options is correct. both muscles undergo extension simultaneously. the two muscles combine forces to produce similar motions. one muscle undergoes flexion, whereas the other undergoes extension. both muscles undergo flexion simultaneously.
Answers
In an antagonistic muscle pair, one muscle undergoes flexion, whereas the other undergoes extension. These pairs of muscles work together to create movement in opposite directions. For example, the biceps and triceps in the arm are antagonistic muscles.
When you contract your biceps, your triceps relaxes, and when you contract your triceps, your biceps relaxes. This allows for smooth and coordinated movement. Both muscles do not undergo extension or flexion simultaneously in an antagonistic muscle pair. Rather, they work in opposition to each other.
When one muscle contracts, the other relaxes, and vice versa. This allows for control and precision in movement. The two muscles do not combine forces to produce similar motions, as they are working in opposite directions. Therefore, the correct answer is "one muscle undergoes flexion, whereas the other undergoes extension.
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At what point in the evolution of a star is the star actually born
Answers
Answer:
Once it is hot enough for fusion reactions to transcribe at the core, a Star is born.
Explanation:
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I need this in the next 10 minutes
Organelle
A mitochondria
B nucleus
C. Cell membrane
D. Cell wall
E vacuole
F chloroplast
G cytoplasm
name the functions of the organelles?i
Answers
Answer:
mitochondrion energy production from the oxidation of glucose substances and the release of adenosine triphosphate
nucleus DNA maintenance, controls all activities of the cell, RNA transcription
vacuole storage, transportation, helps maintain homeostasis
Explanation:
Question # 2
Multiple Choice
According to the CDC article on noroviruses, food can be contaminated by all except
direct contact with contaminated hands
tiny droplets of vomitus that spray through the air when an infected person vomits
indirect contact with animal feces
direct contact with work surfaces that are contaminated with infectious stool or vomit
Answers
Answer:
I think Indirect contact with animal feces
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Define nutrition in your own words ?
Thank you
Answers
The various kinds of chemical components in food that are essential for an organism to grow and survive are called nutrition.
Explanation:
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