What is the main job of the digestive system?
the main job of the digestive system is to turn the food you eat into the nutrients and energy. the nutrients and energy made from the food u eat helps you to survive. your body also uses these nutrients for growth and repair
2. What element is the building block of organic
compounds/macromolecules? I
Answer:
Explanation: So the answer is CARBON.
There are more hydrogen atoms in living organisms than any other atom, but oxygen is more abundant in terms of
mass.
Why is this statement true?
O Hydrogen is a gas, but oxygen is a solid.
O Hydrogen atoms have a lower mass than oxygen atoms.
• Hydrogen atoms make up more of water's mass than oxygen atoms.
Hydrogen is present as single atoms and oxygen is bonded in compounds,
Answer:
Hydrogen atoms have a lower mass than oxygen atoms.
Explanation:
The statement which is true is Hydrogen atoms have a lower mass than oxygen atoms. Thus, option C is correct.
What is hydrogen?
Hydrogen is the most abundanet element representing nearly three quarters of the mass of the universe. Hydrogen is found in the water that covers 70% of the surface of our planet as well as in all organic matter. Hydrogen is the simplest element in the universe. It is composed only of one proton (p) and only one electron (e-).
Hydrogen is the lightest element of all elements and gases; it is 14 times lighter than air. A "spill" of hydrogen gas immediately diffuses into the air and pollutes neither the ground nor the water table. Hydrogen is invisible, odorless and nontoxic. It does not cause acid rain, does not deplete the ozone layer and does not generate dangerous emissions.
Carbon is so abundant in living things even though oxygen is the most abundant element on Earth because carbon atoms can bond with one another to make chains and cyclic structures whereas oxygen atoms cannot form chains or cyclic structures.
Therefore, The statement which is true is Hydrogen atoms have a lower mass than oxygen atoms. Thus, option C is correct.
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What is another name for a flowering plant?
bryophyte
gymnosperm
angiosperm
polypodiophyte
Answer:
angiosperm is its other name.
I consiste of a small pan that fits into a larger pan, and I am used to cook foods gently. What am I?
Answer: Double Boiler
Explanation:
High frequency has a ________ wavelength. low frequency has a ______ wavelength. question 1 options: short, long long, short medium, short long, medium
High frequency has a short wavelength. low frequency has a long wavelength.
Frequency is defined as the number of waves that pass a specific point in unit time. The SI unit used in case of frequency is Hertz (Hz). If the frequency is 1 Hz, it depicts that only 1 wave passed the point at a specific amount of time.
Wavelength is the distance between two consecutive crests or troughs of a wave. The representation of wavelength is done by the symbol λ (lambda). The frequency and wavelength have an inverse relation. This can be observed by the formula
ν (frequency) = c (speed of light) / λ (wavelength).
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Adult female monkeys from one population breed with male monkeys of a nearby population. The introduction of new alleles into the first population's gene pool is an example of
Answer:
The introduction of new alleles into the gene pool of the first population, from another population, is an example of gene flow.
Explanation:
In population genetics, gene flow consists of the passage or transfer of gene alleles between populations, a process that is related to the migratory dynamics of a population.
When gene flow occurs, a population can gain new genetic material or lose it, which is reflected in traits or characteristics of that population.
If an adult monkey interbreeds with an adult monkey from another population there will be a gene flow that will probably introduce specific trait information into the gene pool of their respective populations.
Please help me, I have a F
Failure to build spindle - anaphase
Failure to dissolve the nuclear membrane - prophase
Failure to condense chromosome - metaphase
What is mitosis?Mitosis is the division of vegetative cells to produce two daughter cells. The process occurs in 4 steps:
Prophase: a stage where the nuclear membrane dissolves and the chromosomes condense to become visible under the microscope.Metaphase: a stage where the condensed chromosomes line up at the center of the cell to form a metaphase plate. each chromosome also gets engaged by the spindle fibers from the opposite ends of the cell. Anaphase: sister chromatids are pulled to opposite poles as a result of the shortening of the spindle fibers.Telophase: sister chromatids complete their migration to the poles. The chromosomes decondense back and the nuclear membrane reappears.Thus:
Failure to build spindle fibers will affect anaphase the most.Failure to dissolve the nuclear membrane will affect prophase the mostfailure to condense chromosomes will affect metaphase the most.More on mitosis can be found here: https://brainly.com/question/26678449
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how+long+does+it+take+for+approximately+75%+of+carbon-14+to+decay+into+carbon-12+(in+thousands+of+years)?
Carbon-14 is a radioactive isotope of carbon. Its atomic nucleus contains 6 protons and 8 neutrons. The half-life of carbon-14 is 5730 years. After 5730 years, half of the original amount of carbon-14 will have decayed into nitrogen-14.
Therefore, after another 5730 years, half of the remaining carbon-14 will have decayed, leaving only one-quarter of the original amount of carbon-14. In other words, it takes two half-lives for approximately 75% of carbon-14 to decay into carbon-12.
So, since each half-life of carbon-14 is 5730 years, it will take approximately 2 × 5730 years = 11,460 years for approximately 75% of carbon-14 to decay into carbon-12. Therefore, the answer is that it takes approximately 11,460 years for approximately 75% of carbon-14 to decay into carbon-12.
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Which best defines homeostasis? modifying the external environment maintaining a stable internal environment controlling what enters and exits the cell movement of materials into the cell
Answer:
B. maintaining a stable internal environment
Explanation:
Took the test :)
Answer: yes its B
Explanation:
Anemia is a medical condition in which the affected person lacks enough red blood cells. What two effects will such a condition have on the patient?
The two effects will such a condition have on the patient are as follows:
The patient will have less hemoglobin in the blood.The patient will have a reduced oxygen supply to the cells.What is Anemia?Anemia may be defined as a condition that leads to a deficiency of hemoglobin or Red blood cells in the blood.
The complete question is as follows:
The patient will have less hemoglobin in the blood.The patient will have less immunity against bacteria.The patient will have a reduced oxygen supply to the cells.The patient will have a thicker blood composition.The patient will have increased platelets in the body.Red blood cells are accountable for carrying oxygen to cells and when a patient is suffering from anemia it leads to a reduced oxygen supply throughout the body.
Therefore, the correct options are A and C.
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evidence for the spiral nature of dna came from . a. studies of disease-causing bacteria b. base rule studies c. bacteriophage studies d. x-ray crystallography studies
Studies using x-ray crystallography provided proof of DNA's spiral structure.
How did Watson and Crick figure out what DNA's structure was?Watson and Crick came up with a structure for DNA using proportionate metal models of the individual nucleotides that was in agreement with Chargaff's Rules and with x-ray crystallography data that was received (with some debate) from another researcher by the name of Rosalind Franklin.
Using X-ray diffraction, Franklin and Maurice Wilkins discovered hints concerning the structure of DNA. Franklin's "photograph 51" X-ray diffraction image of DNA demonstrated that DNA crystals take the form of an X on the film used for X-rays. These X-shaped patterns are common in molecules with helical shapes.
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which of the following best describes how carbon is cycled through plants
Carbon is cycled through plants through the process of photosynthesis, where carbon dioxide from the atmosphere is absorbed by plants and converted into organic carbon compounds such as sugars, starches, and cellulose. This carbon is used as a source of energy and building material for the plant's growth and development. In turn, plants release oxygen into the atmosphere through a process called respiration, where they break down organic carbon compounds to release energy for their metabolic processes. Additionally, carbon in the form of dead plant material can be stored in the soil as organic matter, where it can be decomposed and eventually released back into the atmosphere as carbon dioxide through processes such as microbial decomposition.
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The daughter cells that are produced during mitosis are
A.
completely different than their parent cell.
B.
partially similar to their parent cell.
C.
identical to their parent cell.
D.
somewhat different from their parent cell.
Ben measures the height of two bottles. One is 12 centimeters and the other is 15 centimeters. In millimeters what is the difference of the two heights
The difference in height between the two bottles is 30 millimeters.
To calculate the difference in height between the two bottles in millimeters, we need to convert the heights from centimeters to millimeters and then subtract one from the other.
First, we convert the height of the first bottle from centimeters to millimeters. Since there are 10 millimeters in a centimeter, we can multiply the height of 12 centimeters by 10 to get the height in millimeters:
12 centimeters * 10 millimeters/centimeter = 120 millimeters.
Next, we convert the height of the second bottle from centimeters to millimeters using the same conversion factor. We multiply the height of 15 centimeters by 10:
15 centimeters * 10 millimeters/centimeter = 150 millimeters.
Now that we have both heights in millimeters, we can calculate the difference. We subtract the height of the first bottle from the height of the second bottle:
150 millimeters - 120 millimeters = 30 millimeters.
Therefore, the difference in height between the two bottles is 30 millimeters.
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5. What are virus hoaxes? Why are the hoaxes sometimes more dangerous than an actual virus?
Answer:
An actual computer virus is a malicious software, often known as malware, that can harm a computer and its users.
Virus hoaxes are false or misleading information about viruses that circulate through various communication channels.
They can be more dangerous than actual viruses due to their ability to spread quickly, cause panic, and undermine effective public health measures.
Virus hoaxes are deceptive messages or claims that often exaggerate the severity or impact of a particular virus. They can be spread through social media, email chains, or word of mouth. These hoaxes may include misinformation about symptoms, transmission methods, or false remedies, leading people to take ineffective or even harmful actions.
What makes virus hoaxes particularly dangerous is their potential to create panic and misinformation at a rapid pace. The viral nature of social media and other communication platforms allows these hoaxes to reach a wide audience within a short period. As a result, people may make decisions based on false information, such as avoiding necessary medical treatment, taking unnecessary precautions, or spreading fear and misinformation to others.
Moreover, virus hoaxes can undermine public health efforts by diverting attention and resources from legitimate preventive measures. They can erode trust in healthcare authorities and disrupt the dissemination of accurate information, making it harder for individuals to make informed decisions and follow recommended guidelines.
This can have severe consequences, especially during outbreaks or pandemics, where timely and accurate information is crucial for public safety. Therefore, it is essential to verify the credibility of information and rely on trusted sources to mitigate the risks associated with virus hoaxes.
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Write a scientific explanation that explains how birds and fish are more similar than they appear to be based on their adult features. CER
Claim: Birds and fish are more similar than they appear based on their adult features.
Evidence: While birds and fish may appear very different on the surface, they share several key similarities that indicate a closer evolutionary relationship. Both birds and fish are vertebrates, meaning that they possess a backbone and spinal cord. They also both have a similar body plan, with streamlined shapes that enable them to move efficiently through their respective environments.
One of the most striking similarities between birds and fish is their respiratory system. Both groups of animals use a specialized respiratory organ to extract oxygen from their environment. In birds, this organ is the lungs, while in fish it is the gills. While the structure of these organs is different, they serve the same basic function, allowing the animal to take in oxygen and expel carbon dioxide.
Additionally, both birds and fish have adaptations that enable them to fly or swim through their respective environments with great efficiency. For example, both groups have streamlined body shapes that reduce drag, as well as powerful muscles that enable them to generate the necessary propulsion. Birds and fish also have adaptations that improve their vision and enable them to navigate their environments with precision.
Reasoning: The similarities between birds and fish can be explained by their shared evolutionary history. Both groups of animals evolved from a common ancestor that possessed many of the same features, such as a backbone and specialized respiratory organs. Over time, these features were modified and refined to better suit the animals' respective environments, resulting in the different adult forms that we see today.
Conclusion: While birds and fish may appear very different on the surface, they share several key similarities that indicate a closer evolutionary relationship. By examining their respiratory systems, body plans, and adaptations, we can see that these two groups of animals are more similar than they may appear based on their adult features.
Tetrodotoxin (TTX) and botulinum toxin (BTX) are two neurotoxins that causes paralysis. What is(are) the underlying mechanism(s)? a) Both block the voltage-gated Na+ channels to inhibit the firing of
Tetrodotoxin (TTX) and botulinum toxin (BTX) are two neurotoxins that cause paralysis. The underlying mechanisms are given below:a) Both block the voltage-gated Na+ channels to inhibit the firing of action potentials.
Both tetrodotoxin (TTX) and botulinum toxin (BTX) block voltage-gated Na+ channels to inhibit the firing of action potentials, which results in paralysis. Tetrodotoxin (TTX) is a potent neurotoxin that is found in pufferfish, whereas botulinum toxin (BTX) is produced by the bacteria Clostridium botulinum.
Both neurotoxins inhibit the release of neuro transmitters from nerve endings in muscles. TTX inhibits the release of acetylcholine (ACh) by blocking voltage-gated Na+ channels in the axons of nerve cells that supply the muscles. Botulinum toxin (BTX) prevents the release of ACh from nerve endings by blocking the docking of vesicles containing ACh with the plasma membrane of the nerve ending. As a result, muscle contraction is prevented, leading to paralysis.
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The USGS website from the Try It states, "We need to take the statement "Water is the universal solvent" with a grain of salt (pun intended). Of course it cannot dissolve everything, but it does dissolve more substances than any other liquid, so the term fits pretty well. Water's solvent properties affect all life on Earth, so water is universally important to all of us."
Water's solvent properties also affects Earth's non-living materials and surface features such as rocks, mountains, valleys, or caves.
Detail a plan for how you would conduct an investigation to answer the following question:
How does water's ability to dissolve more substances than any other liquid affect rocks in my neighborhood?
Which of the following best describes
which living organisms create the community of an ecosystem?
A. any living thing from single to multicellular plants or
animals
B. anything that is a multicellular organism
C. anything that has the ability to hunt for its own food
D. anything living that is considered to be plant life
Answer:
A
Explanation:
I'll see you safe to the end of the wood - and then I must
go back, you know. That's the end of my move.
-Through the Looking-Glass,
Lewis Carroll
Recall that chess pieces must move according to
specific rules. What do the White Knight's words
symbolize?
O Alice must enter adulthood on her own.
O Alice wants to be alone.
O
The White Knight wishes to be a child.
The White Knight chooses not to help.
Answer:
A
Explanation:
If a person were to damage or destroy the entire vision center of the brain, he/she would not be able to see even though the eyes were not harmed. (a) A person damages only the left vision center. Could he/she still seel _____. (b) How would the vision be limited _____.
If a person damages only the left vision center, he/she would still be able to see, but the vision would be limited by having difficulties seeing things on the right side of their visual field.
The left vision center is responsible for processing visual information from the right side of the visual field.
Therefore, if the left vision center is damaged, the person would have difficulty seeing objects on the right side of their visual field. Without the left vision center functioning properly, the brain would not be able to process visual information from the right side of the visual field, resulting in limited vision.
If a person were to damage or destroy the entire vision center of the brain, he/she would not be able to see even though the eyes were not harmed. This is because the vision center of the brain is responsible for processing the visual information received from the eyes and turning it into an image that we can understand.
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why it is very difficult to treat or curve viral disease with antibiotics
It is impossible to treat or cure viral diseases with antibiotics because they are medical drugs specifically designed to treat bacterial infections, which are different biological entities.
What are antibiotics medical drugs?The term antibiotics medical drugs makes reference to all medication developed during the drug development process and aimed at preventing or curing bacterial infections, while viral infections are treated with antivirals.
Therefore, with this data, we can see that antibiotics are medical drugs used to treat bacterial infections, while antivirals are developed in order to prevent or cure viral infections.
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Which of the following is true of asexual reproduction?A. Two parents are required for asexual reproduction.B. It results in genetically diverse offspring.C. It involves meiosis and fertilization,D. The offspring are clones of the parent.
The statement which is true regarding asexual reproduction is the last one, which says that the offspring are clones of the parents. This is because this process only takes part the genetic pool from one parent, not from two, as occurs in sexual reproduction. Here (in asexual reproduction), the process that occurs is mitosis, that is a replication of the parent information, and it's found in organisms like bacteria (by binary fission), and only in a few animals, as geckos, that reproduce themselves without a mate by parthenogenesis.
Which type of large-scale environmental impacts are the most detrimental? Is all human impact on the environment negative? How can we prevent the occurrence of large-scale, negative environmental impacts?”
Answer:d all of the above
Explanation:
Which characteristic of water quality provides the most information regarding the health of a water system ?
The characteristic of water quality that provides the most information regarding the health of a water system is the presence of an indicator species.
What do you mean by Water quality?Water quality may be defined as the state of the water, which consist of chemical, physical, and biological characteristics, usually with regard to its appropriateness for a particular intention such as drinking or swimming.
The presence of an indicator species reveals the actual condition of the biotic and abiotic state of the environment.
Therefore, the characteristic of water quality that provides the most information regarding the health of a water system is the presence of an indicator species.
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as part of their science grade, students watered lima bean seeds and watched them grow. each day they recorded the length of the sprout and took a picture. after two weeks, they organized their data into a report describing how lima bean seeds germinate. what type of assessment task is represented by the report?
Students watered lima bean seeds and observed their growth as part of their science grade. They compiled their data into a paper outlining the lima bean seed germination process after two weeks. The type of assessment task is represented by the report of a project.
Seed germination can be outlined as the fundamental process by which various plant varieties evolve from an alone seed into a plant. This process influences both crop yield and condition. A low model of source pregnancy is the sprouting of a tree from children of an angiosperm or gymnosperm.
An assessment task is a finish, maneuver, or assembled position that builds the time for learners to demonstrate or display the character and wisdom of their education. Assessment plays a main duty while education and inspiration. The types of assessment tasks that we request our undergraduate commotion decide by means of what juniors will approach the knowledge task and what study behaviors they will use.
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who proposed the polynucleic model, stating that DNA and RNA were composed of nucleotides.
What do proteins, nucleic acids, and carbohydrates all have in common?
A. They all use peptide bonds to form macromolecules.
B. They all contain the instructions for building organisms.
C. They are all formed from the same elements. D. They are all made of chains of amino acids.
Answer:
c)they are all formed from the same elements
Explanation:
that is carbon,hydrogen and oxygen but e.g proteins have additional like Nitrogen
Are people with bloom syndrome susceptible to diseases or things that a person with a normal set of chromosomes is not?
While people with BS are more susceptible to certain health issues, early detection and prompt treatment can help manage their symptoms and improve their long-term health outcomes.
What is Chromosomes?
Chromosomes are long, coiled-up strands of DNA (deoxyribonucleic acid) that carry genetic information in the cells of living organisms. They are visible under a microscope during cell division and can be seen to condense and separate into two identical copies before being distributed to daughter cells.
Yes, people with Bloom syndrome (BS) are more susceptible to certain diseases and health issues than individuals with a normal set of chromosomes. BS is a rare genetic disorder that is characterized by a high risk of developing various types of cancer, particularly leukemia and other types of cancer that typically affect the skin, digestive tract, and reproductive system.
In addition to an increased cancer risk, people with BS may also experience other health problems such as recurrent infections, respiratory issues, and gastrointestinal problems. They may also be more prone to sunburn and skin rashes, as well as premature aging of the skin and other organs.
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