Explanation:
The purpose of a taxonomic system is to allow for a scientific classification throughout the world. Explanation:Taxonomy is the process that describes the diversity of living things. This process is done using devices such as classification and nomenclature.
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What can you conclude about DNA from the idea that it is a cell's "brain” ?
A. it helps think.
B. it controls what cells do
C. it requires a lot of blood to operate properly
D. it is located at the top of the cell
The conclusion about DNA from the idea that it is a cell's "brain” is that it controls what cells do.
DNA:
DNA, also known as deoxyribonucleic acid, is the nucleic acid responsible for storing the genetic material of the cell. The DNA is found in the nucleus of eukaryotic cells or in the cytoplasm of prokaryotic cells. The DNA molecule produces proteins via the process of gene expression. The proteins, which acts as enzyme and hormone, controls cellular processes. Therefore, the conclusion about DNA from the idea that it is a cell's "brain” is that it controls what cells do.Learn more at: https://brainly.com/question/19365715?referrer=searchResults
Cellular chemical energy produce during cellular respiration is A. Dna B. h20 C. ATP D. NAD
No explaination needed. 20 pts
What is the process that allows plants to grow
photosynthesis? girl idek i need points
Answer:
photosynthesis allows plants to grow. they convert solar energy from the sun into sugars used for staying healthy.
Explanation:
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What can be done to decrease the likelihood of these problems appearing?
Answer:
Which problems
Explanation:
Unclear Questioning
What is the density (in g/mL) of a 5.00 mL urine sample from a patient suffering from symptoms resembling those of
diabetes mellitus if the mass of the urine sample is measured to be 5.025 g?
O 0.995 g/mL
O 0.9950 g/mL
O 1 g/mL
O 1.00 g/mL
O 1.01 g/mL
The density (in g/mL) of the urine sample is 1.005 g/mL.
Density of a urine sample
The density (in g/mL) of a 5.00 mL urine sample from a patient suffering from symptoms resembling those of diabetes mellitus if the mass of the urine sample is measured to be 5.025 g can be calculated as follows:
Mass of urine sample = 5.025 g
Volume of urine sample = 5.00 ml
Density of urine sample is defined as mass per unit volume. The formula for density is as follows:
Density = mass/volume
= 5.025 g/5.00 mL
= 1.005 g/mL
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Of the following, which can we examine to see past climate patterns? A. magma B. oceans C. ice cores D. volcanic eruptions
Answer: B. Oceans.
Explanation: I have already done this and it was correct.
Answer: C. ice cores
Explanation:
perform the session at least once per week for four weeks. Symptoms were rated as mild, moderate, or severe. 1. What is the research question for this study? A. Do reflexology session reduce the severity of symptoms for breast cancer patients? B. Do weekly telephone calls reduce the severity of symptoms for breast cancer treatments? C. Are race, age, and level of education related to the effectiveness of reflexology sessions and weekly telephone calls? D. Can friends and family members of breast cancer patients learn to perform reflexology sessions? 2. Consider the study above. Match each statistical term to the appropriate aspect of the study. Note, you won't use all the available phrases from the right column. 1. Control group A. 13 medical symptoms 2. Response variable B. All patients undergoing treatment for breast cancer C. Whether patient has breast cancer or not D. All people trained to give reflexology sessions 3. Treatment group E. 256 patients undergoing treatment for breast cancer F. The change in breast cancer symptoms 4. Explanatory variable G. Patients who received only weekly telephone calls H. Whether a patient received reflexology sessions or not 5. Population of interest I. Trained data collectors J. Patients who received reflexology sessions and weekly telephone calls 6. Sample K. All adults living in the Midwest 3. Does this study make use of blinding? because A. All 256 breast cancer patients received weekly telephone calls. B. Half of the caregivers were not trained to give reflexology sessions. c. The breast cancer patients knew whether they were receiving reflexology sessions or not. D. The data collectors were trained to be impartial in the recording of patient responses.
The research question for this study is: A. Do reflexology sessions reduce the severity of symptoms for breast cancer patients?
Matching statistical terms to the appropriate aspects of the study:Control group: G. Patients who received only weekly telephone callsResponse variable: F. The change in breast cancer symptomsTreatment group: J. Patients who received reflexology sessions and weekly telephone callsExplanatory variable: H. Whether a patient received reflexology sessions or notPopulation of interest: B. All patients undergoing treatment for breast cancerSample: E. 256 patients undergoing treatment for breast cancerThis study does make use of blinding because:D. The data collectors were trained to be impartial in the recording of patient responses.Blinding refers to keeping certain individuals or groups unaware of specific treatment assignments or conditions in order to minimize bias. In this case, the data collectors being trained to be impartial indicates that they were likely blinded to the treatment assignments or whether the patients received reflexology sessions or not.
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compare and contrast the lytic and lysogenic life cycles of viruses. how does the virus reproduce in each of these life cycles? what happens to the host cell in each of these life cycles?
Answer:
The lytic cycle involves the reproduction of viruses using a host cell to manufacture more viruses; the viruses then burst out of the cell. The lysogenic cycle involves the incorporation of the viral genome into the host cell genome, infecting it from within.
Explanation:
when hydrogen ions are pumped from the mitochondial matric across the inner membrane and into the intermembrane space, the result is
The result of hydrogen ions being pumped into the intermembrane space is the formation of a proton gradient.
Oxidative phosphorylation is a metabolic pathway by using the energy released by the oxidation of nutrients to produce ATP, and reduce oxygen gas to water. Oxidative phosphorylation has two stages namely electron transport and chemiosmosis.
In the electron transport stage, high-energy electrons from NADH and FADH are transferred from one protein complex to another in the inner mitochondrial membrane. Electrons release energy which is used to pump hydrogen ions from the matrix into the mitochondrial intermembrane space resulting in the formation of a proton gradient.
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which is a homo recessive genotype?
a. r c. Tt
b. tt d. RRR
which is hetero genotype?
a.r c. Tt
b.tt d. RRR
Answer:
Homo Recessive is B. Hetero genotype is C
Explanation:
Homo recessive is two lowercase letters and hetero genotypes would be one capital letter and one lowercase letter.
The sickle cell allele is more likely to have higher prevalence in populations where:
a. Malaria is present
b. Malaria is not present
c. Antibiotics are available
d. Antibiotics are not available
The sickle cell allele is more likely to have higher prevalence in populations where malaria is present. Option (a)
This is because individuals who are carriers of the sickle cell allele are more resistant to malaria. Malaria is caused by a parasitic infection that is carried by mosquitoes. When the parasites infect red blood cells, they require a specific type of hemoglobin, the protein that carries oxygen in red blood cells, to reproduce.
Individuals who are carriers of the sickle cell allele have a different form of hemoglobin, which makes it more difficult for the parasite to reproduce, providing some protection against malaria. Therefore, in areas where malaria is prevalent, the sickle cell allele provides a survival advantage and is more likely to be passed down through generations.
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Name all types of variables (with a description)
Answer: In all there are six basic variable types: dependent, independent, intervening, moderator, controlled and extraneous variables. Independent and Dependent Variables In general, experiments purposefully change one variable, which is the independent variable.
Explanation:can i have a brainliest
A study was conducted in a particular preschool to investigate whether there is a link between breastfecding and a child's level of intellectual functioning, 20 breastfed and 40 not breastfed (non-breastfed) four year old children were involved. Each child is allocated a unique ID number between 1 and 60 (inclusive). Each child had to answer a few basic questions. To motivate them to answer all questions, the investigator offered Whittaker's Miraka Kirīmi (chocolate) bar. (a) For each of the following scenarios, identify the named distribution that can be used to model X, including its parameter(s). i. Each day a randomly chosen child is given a chocolate bar. All 60 children are in the draw every day. Let X be the number of days before the child with ID number 1 is chosen twice. Note that the day on which the child with ID number 1 is chosen for the second time is not counted. [2 marks] ii. Five children are randomly chosen to sit around one table and do their test. Let X be the number of non-breastfed children chosen. [2 marks] (b) Refer to your choice of named distribution in 2(a)ii above and answer the following questions. i. Find the expected value of X,E(X), and the variance of X,Var(X). [2 marks] ii. What is the probability that at least one child in the group of five children chosen to do the test is breastfed? [2 marks]
The variance of X, Var(X), for the hypergeometric distribution, the formula is: 1.67
How to calculate the valueThe hypergeometric distribution has three parameters:central idea
N: the total population size (60 children in this case)
K: the number of success states in the population (40 non-breastfed children in this case)
n: the number of draws (5 children chosen in this case)
To calculate the variance of X, Var(X), for the hypergeometric distribution, the formula is:
Var(X) = n * (K / N) * ((N - K) / N) * ((N - n) / (N - 1))
Using the same values as before, we have:
Var(X) = 5 * (40 / 60) * ((60 - 40) / 60) * ((60 - 5) / (60 - 1))
= 1.67
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Embryological development starts with gastrulation and then proceeds to
A. the zygote phase
C. neurulation
B. the blastula phase
D. blastulation
explain the chemical and mechanical factors involved in sliding filament mechanism
The sliding filament mechanism involves the chemical factors of ATP, calcium ions, actin, and myosin, and the mechanical factors of the cross-bridge cycle and the sarcomere.
The sliding filament mechanism is the process by which muscle fibers generate force and cause movement. This mechanism involves both chemical and mechanical factors.
The chemical factors involved in the sliding filament mechanism include ATP (adenosine triphosphate), calcium ions (Ca²⁺), and the proteins actin and myosin.
ATP provides the energy for muscle contraction. When a muscle fiber is stimulated by a nerve impulse, ATP is broken down into ADP (adenosine diphosphate) and inorganic phosphate, releasing energy that is used to power muscle contraction.
Calcium ions play a key role in regulating muscle contraction. When muscle fiber is stimulated, calcium ions are released from sarcoplasmic reticulum. Actin and myosin are the proteins that make up the muscle fibers.
The mechanical factors involved in the sliding filament mechanism include the cross-bridge cycle and the sarcomere.
The cross-bridge cycle is the series of events that occur when a myosin cross-bridge binds to an actin filament. When the binding occurs, the cross-bridge changes shape, pulling the actin filament toward the center of the sarcomere.
The sarcomere is the repeating unit of the muscle fiber that contains the actin and myosin filaments.
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Matt use a camera to take a picture of a rose on a piece of paper in the picture the rose appear to be bright red and the background appear to be white then Matt place a blue glass filter over the camera lens and took another picture in this picture of the Rose appear to be black in the background appear to be blue explain what happens to light waves to make the appearance of the rules in the appearance of the background different in the two pictures.
The blue glass filter absorbed most of the red light waves and allowed only the blue light waves to pass through, resulting in the appearance of the rose and the background being different in the two pictures.
What is Light?
Light is a form of electromagnetic radiation that is visible to the human eye. It is a type of energy that travels in straight lines and has both wave-like and particle-like properties. Light is a fundamental part of our world and plays a crucial role in our lives.
Light is produced by the motion of charged particles, such as electrons, and can be emitted by sources such as the sun, light bulbs, and fires. Light travels at a constant speed of approximately 299,792,458 meters per second in a vacuum, which is known as the speed of light.
When Matt took the first picture of the rose on a piece of paper without any filter, the camera captured the visible light waves that were reflected by the rose and the background. The rose appeared bright red because it reflects mostly red light waves and absorbs other colors, and the background appeared white because it reflects all the visible light waves equally.
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Describe the main molecule found in nucleus and explain how it controls the cells functioning
The main molecule found in nucleus is called DNA(deoxyribonucleic acid). This molecule is made of subunits called nucleotides. A nucleotide is made of a nitrogenous base that can be adenine, thymine, guanine or cytosine; a five carbon sugar called deoxyribose and a phosphate group. This molecule controns protein synthesis. Proteins are crucial to the cell's function.
A male with the condition has four children with a female who is a carrier. What are the expected genotypic and phenotypic ratios of the offspring? Include a Punnett square to support your answer.
Genotypic ratio: 1:1 (Aa: aa): half affected and half carriers. phenotypic ratio: 1:1 (carrier: affected) - Carriers and affected individuals make up equal numbers.
What are the expected genotypic and phenotypic ratios of the offspring?We ought to take into consideration the inheritance pattern of the condition as well as the genotypes of the guardians in arrange to expect the genotypic and phenotypic ratios of the sibling.
The male with the condition would have the genotype "aa," and the female with the condition would have the genotype "Aa," in the event that the condition could be a latent hereditary clutter.
We can cross the male genotype (aa) with the female genotype (Aa) using a Punnett square:
| A | a | ------------ A | aa | aa | ------------
From the Punnett square, we can observe the following:
chromosomal ratio:
The genotype "Aa" (carriers) is expected to be present in two out of four offspring, or fifty percent.
The genotype "aa" (affected by the condition) is expected to be present in two out of four offspring (50 percent).
phenotypic Ratio :
It is anticipated that two out of four offspring, or 50%, will be carriers (phenotypically unaffected).
2 out of 4 (half) posterity are supposed to be impacted by the condition.
As a result, the anticipated genotypic ratio is one-to-one (Aa: aa), and the anticipated ratio of phenotypes is also 1:1 (carrier: affected).
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Which of the following would you expect to find in the cells of all living things? *
Answer:
Explanation:
"All living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing. When viewed together, these characteristics serve to define life."
What type of reaction breaks the bonds that join the phosphate groups in an ATP molecule?
hydrolysis
anabolism
dehydration decomposition
dehydration synthesis
Answer:
Hydrolysis
Explanation:
The outer part of Earth's magnetic field ?
Answer:
The magnetosphere shields the surface of the Earth from the charged particles of the solar wind and is generated by electric currents located in many different parts of the Earth.
Explanation:
Describe the structure of large bones.
Answer:
Periosteum, Compact Bone, Spongy Bone, Bone Marrow, Articular Cartilage, Medullary Cavity
Explanation:
Periosteum: The outermost layer of a bone is called the periosteum. It is a tough, fibrous membrane that covers the bone's surface. The periosteum contains blood vessels, nerves, and connective tissue that nourish and support the bone.
Compact Bone: Beneath the periosteum lies a layer of compact bone, also known as cortical bone. Compact bone is dense and hard. It forms the main shaft or diaphysis of the long bone. Its structure consists of multiple layers of tightly packed mineralized matrix called lamellae, which contain collagen fibers. Compact bone provides strength and protection to the bone.
Spongy Bone: The interior of the bone, particularly at the ends and in the middle of long bones, contains spongy bone, also called cancellous or trabecular bone. Spongy bone has a porous, lattice-like structure composed of thin, branching bony plates called trabeculae. The spaces between the trabeculae are filled with bone marrow. Spongy bone helps reduce the weight of the bone while providing support and flexibility.
Bone Marrow: Within the spaces of spongy bone is bone marrow. There are two types of bone marrow: red marrow and yellow marrow. Red marrow is responsible for producing blood cells, including red blood cells, white blood cells, and platelets. Yellow marrow consists mainly of fat cells and serves as a storage site for adipose tissue.
Articular Cartilage: At the ends of long bones, where they articulate with other bones in joints, there is a layer of smooth, slippery cartilage called articular cartilage. It helps reduce friction and absorbs shock during movement, facilitating smooth joint motion.
Medullary Cavity: Within the diaphysis or shaft of the long bone, there is a hollow space called the medullary cavity. The medullary cavity contains bone marrow and serves as a storage site for yellow marrow.
A change in body temperature will have which of the following effects on enzymes in the body?
O A change in the ability of some enzymes to bind with their coenzymes
A change in the ability of some enzymes to bind with their substrate
A reduction in the concentration of some enzymes in the body
An increase in the concentration of some enzymes in the body
Answer:
A reduction in the concentration of some enzymes in the body
Explanation:
As temperature is increased the enzymes and substrate gain kinetic energy (move more quickly). This increases the frequency of collisions and the formation of enzyme-substrate complexes. Therefore as the temperature is increased the enzyme activity and the rate of reaction increases.
Increases in temperature increase molecular activity, and can result in a higher rate of collisions between enzymes and substrates. If the temperature rises too high, however, the enzymes could become denatured, and the positive effects of the temperature increase could be nullified.
.The millionaire, Mr. Big, has just died. He has left behind a wife, daughter and a large inheritance. The news of his death has brought forth 2 men who claim to be the long lost son of Mr. & Mrs. Big. Before Mr. & Mrs. Big were married, they had an illegitimate child and had placed him up for adoption. They had tried to find him after they became wealthy but had no luck in locating him. A DNA sample was taken from Mrs. Big, the Big daughter and the two men who claim to be the long lost son. Which, if any, of the men are telling the truth? Analyze the DNA sample below to answer the question. Explain how you determine the correct answer.
Answer:
Explanation:
use this it might help
As per the question, DNA analysis can be used to determine the biological relationship between individuals, so if the DNA of the two men claiming to be Mr. Big's son matches that of Mrs. Big and Mr. Big's daughter, it would be strong evidence that they are indeed Mr. Big's biological children.
What is DNA analysis?
DNA analysis is a scientific technique that is commonly used to identify biological relationships between individuals. It works by comparing the genetic markers or sequences of the DNA samples collected from the individuals in question. DNA is the genetic material that contains the genetic instructions for the development and function of all living organisms. In the case of the Big family, if one or both of the men claiming to be Mr. Big's son have a DNA sequence that matches the genetic markers of Mrs. Big and the Big daughter, it would be a strong indication that he is indeed the biological son of Mr. Big. The DNA analysis would be able to provide information about the probability of the biological relationship based on the number of matching genetic markers or sequences.
Hence, DNA analysis can be used to determine the biological relationship between individuals, so if the DNA of the two men claiming to be Mr. Big's son matches that of Mrs. Big and Mr. Big's daughter, it would be strong evidence that they are indeed Mr. Big's biological children.
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the ________ is a flagellated cell that sweeps water through a sponge's body.
The choanocyte is a flagellated cell that sweeps water through a sponge's body.
Choanocytes( or' collar- cells'), are grouped within chambers. They're the main' pumping stations' for sponger survival. These collar cells have a bitsy central hair- suchlike scourge( flagellum) that laboriously beats to produce a water current.
The abecedarian element of the suite of cells in a sponger body is the choanocyte. Choanocytes are the cells that line the spongocoel and conduits of poriferans. They retain flagella and the collaborative movement of flagella pollutants the nutrients out from the water.
Choanocytes are specialized cells that have a single flagellum girdled by means of a net- suchlike collar of microvilli. Choanocytes join together to produce the choanoderm, where they perform their main functions. The first is to produce a inflow of water and the second is to capture food particulars as they pass through these cells.
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Cells are surrounded and protected by. it's multiple-choice to fill in the blank. Here's the list of them.
Lipids
Nucleic Acids
Carbohydrates
Proteins
The structure which surrounds and protects the cell is the cell membrane. It is made up of lipids and proteins.
Lipids, specifically phospholipids, make up the cell membrane. Lipids are essential in the formation of the cell membrane's structure. They have a hydrophilic head and a hydrophobic tail, which repels water. The hydrophobic tails of the phospholipids point inward and the hydrophilic heads point outward toward the water-based environment both inside and outside the cell in a bilayer arrangement.
The cell membrane is made up of lipids and proteins in addition to these other substances. The lipid bilayer contains proteins that perform a variety of tasks like cell signaling, cell adhesion, and molecule transport in and out of the cell. In order to maintain its internal environment, the cell depends on these proteins to control the substances that enter and leave the cell.
Therefore, the most appropriate answer is proteins and lipids.
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Select the statement that is true when comparing solutions with a pH of 6 and a pH of 8. Multiple Choice 6 Solutions with a pH of 8 has a 2 times lower concentration of hydrogen ions than a solution with a pH of 6. The solution with a pH of 6 has a 100 times lower concentration of hydrogen ions than a solution with a pH of 8. The solution with a pH of 6 has a 100 times higher concentration of hydrogen ions than a solution with a pH of 8. The solution with a pH of 8 has a 100 times higher concentration of hydrogen ions than a solution with a pH of 6. The solution with a pH of 6 has a 2 times higher concentration of hydrogen ions than a solution with a pH of 8.
The statement that is true when comparing solutions with a pH of 6 and a pH of 8 is B. the solution with a pH of 6 has a 100 times higher concentration of hydrogen ions than a solution with a pH of 8
This statement is true because the pH scale is logarithmic, meaning that each unit increase or decrease represents a tenfold change in the concentration of hydrogen ions. A solution with a pH of 6 has a concentration of hydrogen ions of 1 x 10^-6 moles per liter, while a solution with a pH of 8 has a concentration of hydrogen ions of 1 x 10^-8 moles per liter.
This means that the concentration of hydrogen ions in a solution with a pH of 6 is 100 times greater than the concentration of hydrogen ions in a solution with a pH of 8. S the correct answer is B. the solution with a pH of 6 has a 100 times higher concentration of hydrogen ions than a solution with a pH of 8, the true statement when comparing solutions with a pH of 6 and a pH of 8.
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How are all forms of asexual reproduction similar
Answer:
Well they do not involve another specimen or a partner at that.
Explanation:
Sorry if this was not the answer you were looking for.
china experienced a great famine in 1958 that was partially due to the removal of eurasian tree sparrows. these sparrows ate an insect called a locust. when the sparrows were removed, the locust population increased exponentially. in this example, the sparrows acted as for the locust population
The sparrows acted as environmental resistance density dependent limiting factor predator for the locust population.
What do locusts do?Certain species of short-horned grasshoppers in the Acrididae family go through a swarming phase that is known as a locust. Normally solitary, these insects can change their behavior and habits to become gregarious under certain conditions that increase their abundance.
They consume plants, turning plant matter into protein that is used by many species in their bodies. Other insects dig up their ground-burrow-deposited eggs, and the young (nymphs) are caught by small birds and lizards. Overall, locusts play a significant ecological part in the food chain.
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the purpose of including glucose as a significant chemical parameter by a laboratory that performs macroscopic screening is to check for the presence of:
The purpose of including glucose as a significant chemical parameter in macroscopic screening is to check for the presence of abnormal blood sugar levels.
How does including glucose as a chemical parameter help detect abnormal blood sugar levels in macroscopic screening?When a laboratory includes glucose as a significant chemical parameter in macroscopic screening, it serves the purpose of checking for the presence of abnormal blood sugar levels. Glucose is a crucial indicator of the body's carbohydrate metabolism and can provide valuable information about the functioning of various organ systems, particularly the pancreas and liver, which play a role in blood sugar regulation.
By measuring glucose levels in the blood or other bodily fluids, macroscopic screening can identify potential abnormalities such as hyperglycemia (high blood sugar) or hypoglycemia (low blood sugar). These conditions can be indicative of underlying health conditions like diabetes mellitus, metabolic disorders, hormonal imbalances, or organ dysfunction.
Including glucose as a significant chemical parameter allows the laboratory to flag potential issues with blood sugar regulation, prompting further investigation or appropriate medical interventions. It helps healthcare providers assess a person's glycemic control, monitor diabetes management, and evaluate overall metabolic health.
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