Is an egg shell permeable or selectively permeable?
Answers
Answer:
Selectively permeable
Explanation:
The membrane is the part that is selectively permeable
Answer:
After someone dissolves an eggshell, the egg is surrounded by a membrane. This membrane is selectively permeable that means it lets certain molecules move through it and blocks other molecules. Water moves through this membrane very easily.
Related Questions
Cells in the primate premotor and parietal cortex that fire when an individual observes an action taken by another individual are called:
Answers
The cells in the primate premotor and parietal cortex that fire when an individual observes an action taken by another individual are called mirror neurons. These neurons were first discovered in macaque monkeys in the 1990s by a team of neuroscientists led by Giacomo Rizzolatti.
Mirror neurons are unique in that they fire both when an individual performs an action and when they observe the same action being performed by another individual. This neural activity allows individuals to understand and imitate the actions of others, and is thought to play a crucial role in social learning, empathy, and the development of language. The discovery of mirror neurons has revolutionized our understanding of how the brain processes social information and has opened up new avenues of research in fields ranging from psychology to robotics.
Cells in the primate premotor and parietal cortex that fire when an individual observes an action taken by another individual are called "mirror neurons."
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What process is similar in function to genetic engineering but different in the mechanism it uses? A. Replication in a bioreactor B. Cellular Respiration C. Breeding for specific traits D. Genetic Calculus
Answers
Option C. Breeding for specific traits is a similar process in function to genetic engineering but different in the mechanism it uses.
Genetic engineering refers to the process of using recombinant DNA methodologies to alter the genome of a particular organism and thus obtain the desired characteristics/traits in organisms derived from them. An example of genetic engineering is the use of recombinant DNA methodologies to develop Escherichia coli strains that generate human insulin.Moreover, selective breeding refers to the process aimed at developing organisms with desirable characteristics by choosing parents with these traits in order to cross them and produce offspring with these phenotypic traits.For example, wheat plants with better yields can be obtained by crossing between wheat varieties that exhibit desired phenotypic traits.In conclusion, Option C. Breeding for specific traits has a similar objective that genetic engineering but the mechanism to reach this objective is different.Learn more in:
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how many species of bacteria live under the gum line
Answers
200 to 300 different bacterial species live in the mouth, however, only a few of these species contribute to periodontal disease or tooth decay (caries).
Numerous bacterial species have the ability to survive below the gum line. The gums offer a favorable habitat for bacterial development in the oral cavity, which is a complex ecosystem with diversified microbiota. Although it is difficult to give a precise figure, it is believed that hundreds of different bacterial species, including those located below the gum line, can live in the oral cavity.
Porphyromonas gingivalis, Prevotella intermedia, Tannerella forsythia, and Treponema denticola are a few of the frequently recognized bacteria linked to gum disease (periodontal disease). If oral hygiene procedures are not correctly followed, these bacteria, along with several others, can colonize the gingival fissures and produce dental plaque, which can cause gum inflammation and periodontal disease.
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Q- How many species of bacteria live under the gum line?
aerobically trained muscles burn _____ more readily than untrained muscles.
Answers
The ability of aerobically trained muscles to oxidize fat as a primary fuel source is a key adaptation that supports endurance performance and metabolic health.
Decrie aerobically trained muscles?Aerobically trained muscles burn fat more readily than untrained muscles. This is because regular aerobic exercise increases the number and size of mitochondria, which are the cellular powerhouses responsible for converting fat into energy through a process called oxidative phosphorylation. As a result, trained muscles can generate more ATP (adenosine triphosphate) from fat, sparing glycogen and glucose as fuel for high-intensity exercise. Moreover, trained muscles also have greater capillary density and oxygen uptake, which enhance the delivery and utilization of fatty acids during exercise. Overall, the ability of aerobically trained muscles to oxidize fat as a primary fuel source is a key adaptation that supports endurance performance and metabolic health.
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What are some ways that humans can reduce the effect they have on the cycling of phosphorus?
Answers
Answer:
Pollution
Explanation:
Much of the Phosphorus in the earth has been depleted by pollution so if your looking for an answer that is the most common way the phosphorus depletion is pollution. So the answer is pollution. :D
Which best describes the reactants and products of photosynthesis?
A. Reactants are formed inside the plant, and products are taken in from the environment by the plant.
B. Reactants are taken in from the environment by the plant, and products are formed inside the plant.
C. Reactants and products are formed inside the plant.
D. Reactants and products are taken in from the environment by the plant.
Answers
Answer:
The answer is B
Explanation
reactants are taken in from the environment by the plant, and products are formed inside the plant.
Explanation: Photosynthesis is the process by which green plants are able to convert light energy into chemical energy. Green plants produce their own food via photosynthesis.
6CO2 + 6H20 + (light energy) → C6H12O6 + 6O2
In words, Carbon dioxide + water + energy from sun light produces glucose and oxygen.
Carbon dioxide, water and sunlight which are the reactants are external and it is taken up by the plant. However, the products glucose and oxygen are formed from within the plant.
When photosynthesis occur in green plants, light energy is trapped and utilized to convert water, carbon dioxide and other minerals to oxygen and energy-rich organic compounds such as ATP.
I agree with the other answer just took the test on edge 2021
Explanation:
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Complete the following sentence.
Sod is harvested and then shipped in the form of
often to local customers.
Answers
Answer:
Rolls
Explanation:
I took the test.
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Answers
Answer:
The answer is
1. 25 perfect
2. makeshift homes
3. soccer ( futball)
4. shrine of our lady of Guadalupe
Explanation:
Now give me five stars ok.
How does the structure of the plasma membrane determine the permeability of various types of molecules?.
Answers
The structure of the plasma membrane determines the permeability of various types of molecules.
The plasma membrane is composed of a phospholipid bilayer with hydrophobic tails and hydrophilic heads. The hydrophobic tails form a barrier that prevents the passage of charged or polar molecules such as ions, amino acids, and glucose.
On the other hand, small nonpolar molecules like oxygen and carbon dioxide can diffuse freely through the hydrophobic core of the membrane. The presence of membrane proteins such as channels, transporters, and pumps also affects the permeability of the membrane to various molecules.
Channels allow the passage of specific ions or molecules based on their size and charge, while transporters and pumps require energy to move molecules across the membrane. Additionally, the fluidity of the membrane and the presence of cholesterol molecules affect the permeability of the membrane to different molecules.
Thus, the structure of the plasma membrane determines the selective permeability of the membrane to different molecules.
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Tundra how move with carbon though atmosphere?
Answers
Answer:
Boreal and northern tundra ecosystems typically obtain carbon (carbon sink) stored in plant biomass and new soil organic matter during the short summer growing season, when photosynthesis and plant growth are greater than normal. normal. carbon respired by plants and soil back into the atmosphere.
Explanation:
how is prenatal androgen exposure related to differences in later behavior?
Answers
Prenatal androgen exposure refers to the male sex hormones that are secreted in large quantities by the testes of male fetuses.
Prenatal androgen exposure has been related to later differences in behavior in a number of ways: For example, women with higher levels of prenatal androgen exposure tend to show more "masculine" behaviors such as aggression and dominance. Similarly, men with lower levels of prenatal androgen exposure tend to show more "feminine" behaviors such as empathy and emotional sensitivity.
There is also evidence to suggest that prenatal androgen exposure may be related to later sexual orientation, with higher levels of prenatal androgen exposure being associated with a greater likelihood of same-sex attraction in adulthood.
Overall, prenatal androgen exposure appears to play an important role in shaping later behavior, although the precise mechanisms underlying this relationship are not yet well understood.
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_______ innervate striated muscle fibers, and _______ innervate specialized fibers called _______.
Answers
In conclusion, motor neurons innervate striated muscle fibers, allowing for voluntary movement, while sensory neurons innervate Pacinian corpuscles, enabling the detection of mechanical pressure and vibration.
The nerves that innervate striated muscle fibers are called motor neurons, while the nerves that innervate specialized fibers called Pacinian corpuscles are sensory neurons.
1. Motor neurons innervate striated muscle fibers, which are responsible for voluntary movement in the body. These motor neurons originate in the motor cortex of the brain and travel through the spinal cord to reach the muscle fibers. They transmit signals from the brain to the muscle fibers, causing them to contract and produce movement.
2. Sensory neurons, on the other hand, innervate specialized fibers called Pacinian corpuscles. Pacinian corpuscles are found in the skin and are responsible for detecting mechanical pressure and vibration.
When a mechanical stimulus is applied to the skin, the Pacinian corpuscles generate electrical signals that are transmitted by sensory neurons to the brain for interpretation.
In conclusion, motor neurons innervate striated muscle fibers, allowing for voluntary movement, while sensory neurons innervate Pacinian corpuscles, enabling the detection of mechanical pressure and vibration.
These two types of neurons play distinct roles in the nervous system, contributing to our ability to sense and interact with the world around us.
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Geneticists can transfer a gene from a DNA of one organism into another through a process called ...............................................
A) Natural selection.
B) Genetic engineering.
C) Artificial breeding.
Answers
Answer:
The answer is B.
Explanation:
Genetic engineering involve the change of genetic material of an organism by removing, changing or inserting individual genes.
What type of animal eye is this? Who's is it?
Answers
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why according to leopold, do we not grieve for the loss of plant and animal species due to human activity?
Answers
According to Leopold, we do not grieve for losing plant and animal species due to human activity because we have not yet learned to "think like a mountain."
Leopold argued that we humans have not yet developed an ecological consciousness or an understanding of the interconnectedness of all living things. It is what he called "thinking like a mountain."
As a result, we do not fully comprehend the consequences of our actions on the natural world and the impact that the loss of plant and animal species has on the functioning of ecosystems. Leopold argues that we need to develop a land ethic, which would give us a deeper appreciation for the value of all living things and help us to make more responsible decisions about how we use and interact with the natural world.
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Describe the difference in MPS (and hypertrophy) with overfeeding in an untrained/obese group compared to a group of trained individuals.
Answers
In an untrained/obese group, overfeeding can lead to an increase in muscle protein synthesis (MPS) and hypertrophy, but the response may be blunted compared to a group of trained individuals.
Trained individuals generally have a higher baseline level of MPS and muscle mass, which may limit the extent of MPS and hypertrophy in response to overfeeding.
In an untrained or obese group, overfeeding can provide an excess of nutrients, including protein, which can stimulate MPS and promote muscle hypertrophy. However, several factors may affect the response to overfeeding in this group. Untrained individuals may have lower baseline levels of MPS and muscle mass compared to trained individuals, which can limit the potential for substantial increases in MPS and hypertrophy.
Additionally, obesity is associated with metabolic dysregulation, such as insulin resistance and chronic inflammation, which can negatively impact muscle protein metabolism. These metabolic disturbances can impair the anabolic response to overfeeding and limit the extent of MPS and hypertrophy.
On the other hand, trained individuals who regularly engage in resistance exercise have already established a higher baseline level of MPS and muscle mass. Their muscles are more sensitive to the anabolic stimuli of overfeeding and may exhibit a greater response in terms of MPS and hypertrophy. Trained individuals also tend to have better metabolic health, which can further enhance the muscle protein synthesis response to overfeeding.
In summary, while both untrained/obese individuals and trained individuals may experience increases in MPS and hypertrophy with overfeeding, the response in the untrained/obese group may be blunted due to lower baseline levels of MPS, metabolic dysregulation, and impaired muscle protein metabolism. Trained individuals, with their higher baseline levels of MPS and muscle mass, may exhibit a more pronounced response to overfeeding in terms of MPS and hypertrophy.
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Which of the following is NOT an adaptation of the
parasitic tapeworm?
A. No digestive system because food is already digested.
B. Hooks to hang onto host intestine.
C. Fangs to pierce intestine wall and absorb nutrients.
D. Mucus for protection from being digested.
Answers
What is the difference between diffusion and facilitated diffusion?
Answers
Answer:
transport of substances across a biological membrane through a concentration gradient
Explanation:
if im wrong im deeply sorry, im not good at this but ill find an internet explination>
Main Difference – Simple Diffusion vs Facilitated Diffusion Simple diffusion and facilitated diffusion are two types of passive transport methods in which the cell membrane transports molecules across it. It uses natural entropy to move molecules from higher concentration to a lower concentration until the concentration becomes equalized. Hence, no ATP energy is used for the transportation of molecules. There are four main types of passive transport: osmosis, simple diffusion, facilitated diffusion and filtration. The main difference between simple diffusion and facilitated diffusion is that simple diffusion is an unassisted type of diffusion in which a particle moves from higher to a lower concentration across a membrane whereas facilitated diffusion is the transport of substances across a biological membrane through a concentration gradient by means of a carrier molecule.
Please help! how does a cell control gene expression through transcription?
A. by preventing the production of mrna molecules
B. by preventing mrna from binding to ribosomes
C. by preventing the binding of amino acids
D. by changing how a protein is folded
Answers
Answer: A. by preventing the production of mRNA molecules
Explanation:
In order to control gene expression through transcription, a cell can regulate the production of mRNA molecules. This control is achieved through various mechanisms:
1. Cells can produce transcription factors that bind to specific DNA sequences called promoter regions. These transcription factors can either enhance or inhibit the binding of RNA polymerase, the enzyme responsible for transcribing DNA into mRNA. By controlling the availability and activity of transcription factors, the cell can regulate the initiation of transcription and thus control which genes are expressed.
2. The DNA in the cell is packaged into a complex called chromatin, which consists of DNA wrapped around histone proteins. The cell can modify the structure of chromatin through processes such as DNA methylation and histone modifications. These modifications can either promote or inhibit the accessibility of DNA to transcriptional machinery, thereby influencing gene expression.
3. Cells can use small RNA molecules, such as microRNAs (miRNAs) and small interfering RNAs (siRNAs), to regulate gene expression at the transcriptional level. These small RNAs can bind to mRNA molecules and prevent their translation into proteins or promote their degradation, leading to reduced expression of the corresponding genes.
While options B, C, and D are involved in other stages of gene expression or protein synthesis, they are not directly related to controlling gene expression through transcription. Therefore, the most accurate answer is option A, by preventing the production of mRNA molecules.
GIVE ME GOOD ANSWER PLEASE! WILL MARK AS BRAINLIEST Remove a filament and anther from the flower, and write down your observations. Then, shake the pollen grains from the anther onto a microscope slide, add a drop of water, and place a coverslip on it. Observe the slide under a magnifying glass or a microscope. Describe the differences between the observations made with the naked eye and under magnification. If using a microscope, record specific observations for each magnification used.
Answers
Answer: when you put the pollen under a microscope you can see that the pollen isn’t just yellow and looks like dots but that that each one has a different shape and size
Explanation:
If 32% of the nucleotides in a DNA molecule are guanine, what percentage of the
nucleotides will be thymine?
Answers
Answer:
18% T (Thymine). pls brainliesttt
In a DNA sample according to Chargaff's rule adenine amount is always equal to thymine and guanine is always equal to cytosine, hence 18% will be thymine.
What is Chargaff's rule in DNA?In DNA simple adenine always pair with thymine and guanine paired with cytosine and both pair contribute to 50% for each.
If guanine is 32% so cytosine s also 32% in a sample and both make 64% of the nucleotides in the sample so the remaining nucleotide pair 36% is contributed by adenine 18% and thymine 18% in DNA.
Complementary base pairing adenine makes two hydrogen bond with thymine and guanine make three hydrogen bond with cytosine.
Therefore due to complementary base pairing, it simply has 32% of guanine so it includes 18% of thymine.
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Parkinson’s disease is a brain disorder that may be caused by mutations in several genes that code for the production of alpha-synuclein. Individuals who have Parkinson’s disease exhibit symptoms such as uncontrollable tremors, difficulty walking, and loss of coordination. How might geneticists determine where the mutations that cause Parkinson’s disease are located? PCR analysis gene mapping DNA fingerprinting STR analysis
Answers
Answer:
They could use SNPs(Single nucleotide polymorphisms) of DNA, which are an anaylysis of chromosomes using high tech laser magnification. This SNPing allows scientist to more closely view specific genes in chromosomes that cause certain traits. It allows for a greater genetic mapping and could also be used to see mutations, if you know which chromosome to look at.
IDK, just an idea, SNPs were used to look at different species trait exhibition, I thought it might work for this if used properly.
Answer:
B) gene mapping
Explanation:
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Bacteria which convert nitrogen gas into bio-available forms of nitrogen, such as ammonia and nitrate, are known as
O A. nitrogen emitting bacteria
O B. carbon emitting bacteria
C. nitrogen fixing bacteria
D. carbon fixing bacteria
Answers
Answer:
A. nitrogen emitting bacteria
Can 2 objects made from exactly same substance but different shape or size have the same density? Make a graph
Answers
Yes, 2 objects made from exactly same substance but different shape or size have the same density.
How is it possible for items to have varying sizes but the same density?A substance's density is typically independent of its size, both large and small, and independent of its shape. Despite having distinct masses and volumes, a gold brick and a statue both have the same density. A substance's density is generally understood to be its mass per unit volume.
Therefore, object with the highest density will be the smaller of two things if they both have the same mass but differ in size. So one can say that two things have comparable densities if they have the same mass.
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1. Explain the features of the molecule represented in the structural diagram below. You must identify and
describe each of the following:
a. Type of macromolecule and how you know
know
b. Functional groups present
Answers
Answer:The answer would be A
Explanation:
Biological macromolecule, A large, organic molecule such as carbohydrates, lipids, proteins, and nucleic acids
Which is the most likely reason for developing this type of transportation technology?
Answers
The most likely reason for developing this type of transportation technology is the need for a more efficient and sustainable form of transportation.
Solar cars use an inexhaustible energy source, making them an ideal choice for commuters who want to reduce their environmental impact. Additionally, solar cars are more efficient than traditional combustion engine vehicles and require less maintenance, making them a cost-effective option for daily commuters.
Finally, solar cars are available in a variety of sizes and styles, making them suitable for a wide range of uses.
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Sensory information from a painful stimulus on the skin will be received by the:.
Answers
Sensory information from a painful stimulus on the skin will be received by the nociceptors.
Nociceptors are specialized sensory receptors that are responsible for detecting and transmitting pain signals to the central nervous system. When there is a painful stimulus, such as a cut or burn, nociceptors in the skin are activated and generate electrical signals that travel along nerve fibers to the spinal cord and brain, where the perception of pain is processed. Nociceptors are highly sensitive to different types of pain, including mechanical, thermal, and chemical stimuli, and play a crucial role in our ability to sense and respond to potential tissue damage or injury.
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what is the overall polarity of dna
Answers
The overall polarity of DNA is negative due to the presence of phosphate groups in its backbone which carry negative charges.
DNA consists of two strands that are held together by hydrogen bonds between their nitrogenous bases. The backbone of each strand is made up of alternating sugar (deoxyribose) and phosphate groups. The phosphate groups carry a negative charge due to their structure, while the deoxyribose sugars are neutral. This negative charge of the phosphate groups gives DNA an overall negative polarity.
The polarity of DNA is important in many biological processes, such as DNA replication and transcription, which require the separation of the two strands and the formation of new complementary strands.
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In both meiosis and mitosis of eukaryotic cells, the nuclear dna is separated appropriately so that new cells end up with the correct number and type of chromosomes; however some of the dna in the cell is randomly assorted into the newly formed cells. This type of dna would most likely belong to which organelles?.
Answers
The nuclear DNA is correctly divided during cellular division but the DNA found in the mitochondrial and chloroplasts is distributed randomly among the newly created cells.
The process of creating clones from the mother cell is known as cell division. Meiosis and mitosis are two of the primary kinds of cell division. Meiosis is the mitotic cell reproduction that only happens in germline cells, whereas mitosis is the function reproduction that happens in all kinds of cells. Following the nuclear division of a cell (karyokinesis), the cytoplasm divides (cytokinesis). In karyokinesis, part of the DNA is randomly inserted into the newly produced cells while the nuclear DNA splits properly into the two daughters cells. Chloroplasts and mitochondria both contain this DNA. The DNA of mitochondria and plastids resembles that of prokaryotic cells. These organelles are referred regarded as semi-autonomous organelles since they contain their own DNA.
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Answer: mitochondria and chloroplasts! I just answered this one hope it helps... :)
Explanation:
What is the liquid layer of the earth core called
Answers
Answer:
Outer core.
Explanation:
Just thank me later.
Answer:
The outer core
Explanation: