what type of chemical bond is shown in the diagram ?
Answer:
covalent bond
Explanation:
covalent bond involve sharing of electrons between atoms
HELP WILL GIVE BRAINLY IF RIGHT
an atom is stable if the outer level of electrons in atom contains the maximum number of electrons it can hold. what are the electrons found in the outer level called?
valence electrons
ionic electrons
shared electrons
bonding electrons
In multicellular organisms, cell division allows them to do which of the following?
a) develop from a single cell into a multicellular organism
b) all are correct
c) grow (i.e., increase the size of the organism)
d) make other cells to repair and replace worn-out cells
In multicellular organisms, cell division allows development from a single cell into a multicellular organism, growth and making other cells to repair and replace worn-out cells (Option b all are correct).
What is mitosis?Mitosis is a cell division process by which multicellular organisms can grow, repair tissues and also develop from a single cell called the zygote. This process is fundamental during the lifespan of multicellular life forms.
Therefore, we can conclude that mitosis is a multipurpose cell division process in multicellular organisms because it allows to growth and repair of tissues.
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Which kingdom does this organism most likely belong?
A. Plantae
B. Animalia
C. Fungi
D. Protista
A gene has three exons that are 140, 230, and 130 bp, respectively. Intron 1 is 125 bp and intron 2 is 95 bp. How long is the properly spliced mature rna transcript?.
The properly sliced mature RNA transcript will be 500 bp long due to the presence of exons.
Exons are the part of the genome that encode for the genetic information. These are present in a fully mature RNA as they are essential for the formation of protein. If a gene contains three exons with length 140, 230, and 130 bp, then the length of its mature RNA will be the sum total of all the exons only. Therefore the length is 500 bp.
Introns on the other hand are the sections of the gene that are removed by the process called splicing. However they are still important as they provide the opportunity to the gene for making various different combinations. Thus, introns have evolutionary significance.
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What is the principle product of the calvin cycle that is exported from the chloroplast for use by the plant cell?.
The main calvin cycle byproduct that is exported from the chloroplast and used by the plant cell is trise phosphate.
What is Calvin cycle ?Calvin cycle, also known as the C3 cycle, is a series of chemical processes used by plants to convert carbon dioxide and other chemicals into glucose.
Three molecules of carbon dioxide are used in a full cycle, which results in the production of one molecule of the three-carbon chemical glyceraldehyde-3-phosphate (Gal3P). Normally, the chloroplasts either export this three-carbon sugar phosphate or transform it internally into starch.Since the first stable compound in Calvin cycle is a 3 carbon compound (3 phosphoglyceric acid), the cycle is also called as C3 cycle. The reactions of Calvin's cycle occur in three phases.Learn more about Calvin cycle here:
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A scientist trying to amplify the green fluorescent protein (gfp) gene from a sample of jellyfish dna would primarily use which technology to separate the gfp gene from the rest of the dna? polymerase chain reaction gel electrophoresis artificial selection genetic engineering
The technology that needs to be used to separate the GFP gene from a sample of jellyfish from the rest of the DNA is gel electrophoresis.
What is gel electrophoresis?Gel electrophoresis is a technique used in molecular biology laboratories to separate molecules according to the electrical charges and size. DNA has a negative charge, thereby this molecule can be separated according to the size of its fragments that migrates to the positive pole.
Therefore, we can conclude that gel electrophoresis is a technique used to separate fragments of DNA in a sample.
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If anyone could answer this kind of fast that would be great; this is due tomorrow
The names of the biomolecules given in the image are: decanoic acid, glucose, adenosine, testosterone, uracil, serine, glucose and amino acid.
Biomolecules are the organic polymers found inside living organisms. These are made of repeating units of a structure called monomer. The biomolecules are essential for performing several reactions inside the body.
Glucose is one of the major biomolecule that belong to the class of carbohydrates. It is essential for the body as it is the source of readily available form of energy. Glucose is a sugar. It is a six carbon compound. It acts as a monomer that joins together with itself or other components to form several other carbohydrates.
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The blood brain barrier is formed by the processes of myelinating oligodentrocytes, and prevents the movement of many hydrophilic molecules from the circulation into the brain. True or false?.
False
Blood-brain barrier (BBB) is a selectively permeable membrane that regulate the the movement of molecules and cells into the brain from the blood.
It helps in maintaining the brain homeostasis by regulating the amount of molecules that enter the brain.
BBB is formed by endothelial cells of the brain and the barrier effectively seperate the brain from the rest of the body
Although study has shown that the interactions of endothelial cells with oligodendrocytes induce BBB function, the blood-brain barrier is not singlehandedly formed by oligodendrocytes.
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Which organ is best described as one in which there are some cells, there is more ground substance than extracellular fibers, and the ground substance is solid at maturity?.
Answer:
The femur or thigh bone. It's the longest, strongest bone in your body. It's a critical part of your ability to stand and move. Your femur also supports lots of important muscles, tendons, ligaments and parts of your circulatory system.
Explanation:
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Need help answer all 5 questions asap I need to turn it in 15 minutes some please help giving 30 points
Answering all 5 questions:
Answer 1: As shown in the picture- deer is one such biotic factor and water is an abiotic factor.
Answer 2: As an organism's survival, both biotic and abiotic play crucial parts in every organism's life. Abiotic factors are limited on this earth and with the growing population of organisms ( plants and animals), competing for getting basic things needs to become an edge for survival by parasitism, mutualism, and commensalism.
2 biotic factors like plants(food) and animals( meat) and 2 abiotic factors like soil and water- with these 2-2 biotic and abiotic factors, human beings as an organism compete with other human beings for survival.
Answer 3: Plants cannot move, however, from the germination of a seed to a fully grown-up tree, it requires space, sunlight, water, minerals, and air for which plants also compete with other trees and even with human beings for water consumption and space.
Answer 4: If animals living in arctic regions start experiencing global warming effects, they do three things: move, adapt or die. In adaptation, to the change in temperature, arctic animals may change their behavior and become less vulnerable to heat. They may also witness some body shape changes within themselves.
Answer 5: food chain is a chain of organisms where one organism acts as food for another organism to maintain the population of each organism. While food web is a collection of all food chains that exist in the ecosystem from an ant to a big elephant or a powerful lion.
Food chain and food web help in balancing the whole biodiversity of the environment.
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in biology, fitness describes an organism's ability to survive and reproduce. classify each example of inherited variation as acting to increase or decrease an organism's fitness. you are currently in a sorting module. turn off browse mode or quick nav, tab to items, space or enter to pick up, tab to move, space or enter to drop. increases fitness decreases fitness
In biology, fitness describes an organism's ability to survive and reproduce. According to Darwin's those organisms have greater fitness which are better adapted to live.
Darwin's idea of evolution, those organisms have greater fitness which are better adapted to live in an environment and which can adapt to changes in an environment. These organisms then pass their characteristics to their off springs. Increases fitness- A dark-colored moth is able to avoid predation on black-barked trees- Red male beetles are preferred by females over other color variants- A mouse with certain kidney adaptations requires less water Decreases fitness- Small-baked finches are less capable of eating large seeds- Bright orange beetles are more likely to be seen by the birds that eat the beetles.
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The question was incomplete. Check below the full question.
In biology, fitness describes an organism's ability to survive and reproduce. Classify the following examples of inherited variations as acting to increase or decrease an organism's fitness- A dark-colored moth is able to avoid predation on black-barked trees- Bright orange beetles are more likely to be seen by birds that eat the beetles- Small-beaked finches are less capable of eating large seeds- Red male beetles are preferred by females over other color variants- A mouse with certain kidney adaptations requires less water in the desert.
Biology !! Please help Glucose us broken down during ??
Answer: aerobic cellular respiration
Explanation: got u
Answer:
Glucose is broken down during cellular respiration.
Explanation:
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cyclodextrins are a group of compounds capable of removing cholesterol from membranes. the effect most likely to have a large impact on cells as a result of cyclodextrin treatment would be
Increased membrane fluidity at higher temperatures would be the effect of cyclodextrin treatment that is most likely to have a significant effect on cells.
What is cholesterol?A lipid that is essential for a healthy body and for the proper operation of cells. It is produced naturally in the liver and is absorbed from food as it travels through the intestines. All cells require it, and the bloodstream carries it.
A fluid buffer, cholesterol has this function. By preventing the membrane from getting too close, it keeps it more fluid even in extremely cold temperatures. It loses fluidity when the temperature is too high.
How does cholesterol function within the plasma membrane?It stabilizes the plasma membrane by preventing the phospholipids from moving around too much. Between the heads of the phospholipids, the OH group extends to the hydrophilic membrane surface.
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what is cell? define cell
Answer:
Cells are the basic building blocks of all living things
Explanation:
Answer: Cells are the basic building blocks of all living things
Explanation: WHATS UP GUYS >:D anywho I hope u guys are a great day and I hope this helps <3
Could an insoluble precipitate of an ionic compound pose a danger to theenvironment? Explain your reasoning.
The insoluble precipitate of ionic compound can pose great threat to the environment.
Insoluble precipitate is a solid substance formed during a chemical reaction. The precipitate of ionic compounds can cause danger to the environment as it is not degraded and hence can cause reactions that form toxic products.
The effects of insoluble precipitate on the environment are various. It can make soil less rich in nutrients that will then affect the quality and yields of plants. If the precipitate is present on the surface of plants, which is then ingested by humans, it can cause diseases in humans as well. It can cause eutrophication of waterbodies, therefore affecting the lives of aquatic species.
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What could you add to this model to show the role of photosynthesis and cellular
respiration in the cycling of carbon among the biosphere, atmosphere, hydrosphere, and geosphere?
In order to show the role of photosynthesis and cellular respiration in the cycling of carbon among the biosphere, atmosphere, hydrosphere, and geosphere, we would explain how they are important to the carbon cycle.
This is because the carbon cycle helps recycle carbon into the atmosphere and cellular respiration helps to release carbon dioxide and the use of photosynthesis pulls off the carbon dioxide from the atmosphere.
What is Photosynthesis?This refers to the process through which green plants generate food through the use of sunlight.
Hence, we can see that the role of photosynthesis and cellular respiration has been explained above.
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a group of experimental drugs focuses on blocking the construction of neurofibrillary tangles by keeping tau protein anchored to microtubules as a possible treatment for
Answer:
Alzheimer's disease
Explanation: did this in my biology class as well hope it helps though
A group of experimental drugs focuses on blocking the construction of neurofibrillary tangles by keeping tau protein anchored to microtubules as a possible treatment for Alzheimer's disease.
Neurofibrillary tangles are abnormal aggregations of tau protein that accumulate inside neurons in the brains of individuals with Alzheimer's disease. These tangles disrupt the normal functioning of neurons and contribute to the progression of the disease. Therefore, developing drugs that target the formation of neurofibrillary tangles is a potential therapeutic approach for Alzheimer's disease.
The experimental drugs mentioned in the statement aim to block the construction of neurofibrillary tangles by keeping tau protein anchored to microtubules. Tau protein normally plays a critical role in stabilizing microtubules, which are essential components of the cell's cytoskeleton responsible for maintaining cell shape and facilitating intracellular transport.
In Alzheimer's disease, abnormal modifications of tau protein cause it to detach from microtubules, leading to the formation of neurofibrillary tangles. These experimental drugs are designed to prevent the detachment of tau protein from microtubules, keeping it anchored and inhibiting the formation of tangles.
By maintaining the proper function of microtubules and preventing the aggregation of tau protein, these drugs aim to slow down or halt the progression of Alzheimer's disease. The potential benefits include preserving neuronal integrity, reducing cognitive decline, and improving overall brain function in affected individuals.
However, it is important to note that the effectiveness and safety of these experimental drugs are still being studied, and they have not yet been approved for clinical use. Ongoing research is vital to further understand the mechanisms involved and to develop effective treatments for Alzheimer's disease.
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How are messages carried throughout the human body from the brain to the nervous system?
Answer: The nervous system uses tiny cells called neurons to send messages back and forth from the brain, through the spinal cord, to all the nerves throughout the body. Billions of neurons work together to create a communication network. Different neurons have different jobs.
Explanation:
Neurons are the fundamental units of the brain and nervous system, the cells responsible for receiving sensory input from the external world, for sending motor commands to our muscles, and for transforming and relaying the electrical signals at every step in between.
Which metalloids would behave more like metals______?
Which metalloids would behave more like nonmetals_____?
The metalloids that would behave more like metals is known as metalloids in group 16.
The metalloids that would behave more like nonmetals are metalloids in group 13.
What are metalloids?This is a chemical element that forms a simple material with properties that fall somewhere between those of a conventional metal and a typical nonmetal is referred to as a metalloid in chemistry.
In chemical reactions, metalloids can behave either like metals or like nonmetals. The majority of metalloids exhibit both metallic and nonmetallic physical characteristics.
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Answer:
16
13
Explanation:
The american cancer society currently estimates that only about 10% of all people with melanoma have a family history of the disease. What factors might contribute to the development of melanoma in the other 90% of patients?.
The factors that might contribute to the development of melanoma in other 90% of patients is: all the given choices i.e., exposure to solar radiation, mutations in a melanocyte and exposure to chemical mutagens.
Melanoma is the cancer of the skin. It develops on the melanin pigment producing cells called melanocyte. It is also called the black tumor and is the most dangerous kind of skin cancer. Redness on the skin and change in the existing mole are a few symptoms.
Mutagens are the agents that cause cancer in the body. There are two types of mutagens: chemical and physical. The chemical mutagens can be alkylating agents, tobacco products, etc. The physical mutagens are the electromagnetic radiations.
The question is incomplete, the complete question is:
The American Cancer Society currently estimates that only about 10% of all people with melanoma have a family history of the disease. What factors might contribute to the development of melanoma in the other 90% of patients?
exposure to solar radiationmutations in a melanocyteexposure to chemical mutagensAll of these choices are correct.To know more about mutagens, here
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a chemical compound has been developed that disrupts the biological messages responsible for the later stages of embryonic development during the reproduction cycles of certain sea creatures. upon introduction into an area of the ocean, the compound spreads outwards and downwards, reaching an active depth of up to 20 feet. the inventors of the compound are aiming primarily at offering it as a method for controlling the numbers of jellyfish although this will clearly be unsuccessful since
The inventors of the compound are aiming primarily at offering it as a method for controlling the numbers of jellyfish although this will clearly be unsuccessful since shortly after fertilization jellyfish, and larvae become plant-like polyps, which rooted to the sea floor, facilitating budding, and the final release of offspring.
The informal popular names for the medusa-phase of several gelatinous members of the subphylum Medusozoa, a significant division of the phylum Cnidaria, are jellyfish and sea jellies. Many varieties of jellyfish are largely safe for people to consume. Others have the capacity to produce extreme discomfort and systemic response.
When jellyfish are stuck to coastal reefs, they are in the stalked (polyp) phase. When they are in the jellyfish (medusa) phase, they are floating among the plankton. The medusa is in the reproductive stage; its eggs undergo internal fertilization and grow into larval planulae that may swim freely.
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Other than oxygen the level of what substance needs to be maintained to give cells a constant supply of energy
Answer:
glucose
Explanation:
its stored in the mitochondria as Adenosine 5'-triphosphate
order the levels of organization from smallest (top) to largest (bottom)
A living thing
A collection of one species in a habitat
All species living in an area
Everything in a location, both living and nonliving
Briefing :An organism is a living thing. A living region only contains one species of the same species. The term "all species residing in a place" refers to all local organisms. An area's biotic and abiotic components both comprise living and nonliving elements.
What are the five organizational tiers of an ecosystem?Researchers in the field of ecology focus on five major levels: organism, population, community, ecosystem, and biosphere. These levels are sometimes studied separately and other times they overlap.
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I understand the question you are looking for :
order the levels of organization from smallest (top) to largest (bottom)
A group of the same species in a living area, all living and nonliving things in an area, a living thing, all species living in an area
The Green Revolution was
characterized by
A. fewer fertilizers
B. lower yields
C. increased yields
D. very small amounts of chemical pesticides
The Green Revolution was characterized by C increased yields by providing large improvements in the food production sector.
How should the Green Revolution be described?Large improvements in food production in developing nations were a hallmark of the “green revolution,” which was brought on by increasing use of herbicides, fertilizers, and different crop varieties.
What does the Green Revolution increase?The introduction of new, high-yielding cultivars into developing countries, which started in the middle of the 20th century with Borlaug’s work, had a significant role in the Green Revolution’s increased the production of different kind of food grains (particularly wheat and rice).
What effects has the Green Revolution had on the fertilizer sector?The green revolution boosted the availability and use of fertilizers, weedicides, and insecticides to increase farm output and minimize crop loss or damage.
With the development of commercial farming, it also assisted in promoting agriculture throughout the nation.
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a chemical that denatures proteins is most likely to be classified as a(n) agent. a chemical that denatures proteins is most likely to be classified as a(n) agent. detergent bacteriostatic bacteriocidal antiseptic
Bactericidal
A chemical that denatures proteins is most likely to be classified as a(n) bactericidal agent.
What are bactericidal agents used for?A bactericidal substance's primary distinguishing characteristic is that it kills bacteria on contact. The cell wall, lipids, enzymes, or protein synthesis within the cell are all affected by these chemicals as they "attack" microorganisms; occasionally, they even employ a mix of these methods.Describe a bactericidal example.The beta-lactam antibiotics (penicillin derivatives (penams), cephalosporins (cephems), monobactams, and carbapenems), as well as vancomycin, are bactericidal antibiotics that prevent the formation of cell walls. Daptomycin, fluoroquinolones, metronidazole, nitrofurantoin, co-trimoxazole, and telithromycin are all bactericidal substances as well.What does the bactericidal effect have on bacteria?Some anti-bacterial, such as penicillin and cephalosporin, are bactericidal because they completely eradicate bacteria. They could harm the bacterial cell directly by attacking the cell wall.These cells can no longer do additional harm to the body since the bacteria cannot attack it.To learn more about bactericidal visit:
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how long is the auditory canal
If the top level consumers were eliminated from a food web would the populations in the levels below them increase without bounds why or why not
If the top-level consumers were eliminated from a food web, then the populations in the levels below them would decrease due to the disequilibrium in the homeostasis of the ecosystem.
What does the homeostasis of the ecosystem mean?The expression homeostasis of the ecosystem makes reference to all relationships between biotic and abiotic factors in an ecosystem which are fundamental to maintaining the state of internal equilibrium of complex biological ecosystems.
The elimination of top consumers in a trophic chain will lead to the disequilibrium of the ecosystem because it would produce an increase in the organism located immediately below, and then organisms located at two trophic levels below would decrease as a consequence of the increase in the number of consumers.
Therefore, we can conclude that ecosystems are delicate complex biological systems where all trophic levels are related and maintain an equilibrium.
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who was a nineteenth‑century biologist who put forth the theory of evolution through natural selection and published his idea in the book entitled on the origin of species?
Charles Darwin was a nineteenth‑century biologist who put forth the theory of evolution through natural selection and published his idea in the book entitled on the origin of species.
Charles Darwin was the evolutionary scientist who can up with the theory of natural selection and published his findings in the book known as the origin of species. This book, written by Darwin, forms the basis of evolutionary biology.
According to the theory of natural selection, those organisms that are better able to survive and adapt to an environment are selected naturally by the environment to reproduce and pass on their characteristics. The organisms which are not adaptable to the environment get removed from the environment through the process of evolution.
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Complete the blank parts. a)____ are contains the genetic material called, ___, that enables the cell to perform its living functions & divide to form___ b) Chloroplast it is where the process of ________in plant cells occur. Contain ______that is green in colour. C) _______ are small structures where the process of respiration occurs. During respiration, _______, is released from food & used for ______ d) ______ is a jelly like substance surrounding the _______ structures of the cell. It transports _______around the cell & it is where the cell's _____are broken down.
e) Cell wall: is a _____ on the outside of the cell. It _____the cell & gives it ______& also allow _______ & fluids to pass through it.
f.) cell membrane: is the ______ structure of the cell . it allows only some ______ to pass through it.
g) ________ present in both plant & animal cells. It is storage space that contain __________ surrounded by a _________.
The nucleus is an organelle that contains the genetic material called, DNA, which enables the cell to perform its living functions & divide to form new cells.
b) Chloroplast is where the process of photosynthesis in plant cells occur. Contain chlorophyll that is green in colour.
C) mitochondria are small structures where the process of respiration occurs. During respiration, ATP, is released from food & used for meatbolism
d) cytosol is a jelly-like substance surrounding the inner structures of the cell. It transports nutrients around the cell & it is where the cell's glucose are broken down.
e) Cell wall: is a rigid structure on the outside of the cell. It protects the cell & gives it shape & also allows nutrients & fluids to pass through it.
f.) cell membrane: is the semi-permeable structure of the cell . it allows only some molecules to pass through it.
g) vacuoles are present in both plant & animal cells. It is storage space that contain enzymes surrounded by a memebrane.
What is cellular respiration?Cellular respiration is the process by which large food molecules are broken down in the body to release energy in the form of ATP.
Cellular respiration may be aerobic or anaerobic.
Aerobic respiration takes place in the presence of oxygen whereas anaerobic respiration takes place in the absence of oxygen.
The food molecules which are ingested and then broken down are produced by plants during the process of photosynthesis.
Photosynthesis takes place in organelles called chloroplast which contain the green pigment, chlorophyll.
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