Arteries must be thicker than veins to be able to withstand the high pressure the heart exerts as it pumps blood into them. As blood travels
through the body, this pressure decreases. Blood pressure is the lowest in the veins as the blood heads back to the heart.
Based on blood pressure differences between arteries and veins, which of these must be true?
OA Blood flow tends to be faster in arteries than in veins.
O B. Blood pH tends to be higher in veins than in arteries.
OC. Blood flow tends to be faster in veins than in arteries.
OD. Blood viscosity tends to be higher in arteries than in veins.
Answers
Answer:
A Blood flow tends to be faster in arteries than in veins.
Explanation:
Veins and arteries are both blood vessels i.e. conducts blood in the circulatory system. As rightly said in the question, the walls of the arteries are thicker and stronger than that of veins in order to be able to withstand the high pressure of blood that flows into it from the heart. The veins, on the other hand, has a lower blood pressure since blood flows back into the heart.
Based on this fact that blood flows forcefully i.e. high pressure, out of the heart into the arteries, blood will flow faster in the arteries i.e. with high speed which is responsible for the high pressure that the blood exerts on its wall.
Answer:
Option A
Explanation:
Blood flow which is characterized by its velocity tends to be faster in arteries than in veins and inversely varies as its cross-sectional area. Blood flow is faster in the arteries as it carries blood away from the heart at high blood pressure rate and this continues if the cardiac output is continually compensated for.
Related Questions
: Level I: Reviewing Facts and Terms (Bloom's Taxonomy: Comprehension)
8) Kidneys regulate
A) water loss only.
B) water gain only.
C) both water loss and gain.
Answers
The kidneys regulate both water loss and gain. The answer is C)
The kidneys play a critical role in maintaining water balance in the body by regulating the amount of water excreted in urine. They do this by adjusting the concentration and volume of urine produced, which is influenced by a variety of factors such as hormone levels, blood pressure, and electrolyte balance.
If the body is in a state of dehydration, the kidneys will conserve water by producing concentrated urine, while if the body has excess water, the kidneys will excrete more dilute urine to remove the excess.
The kidneys work to maintain water homeostasis in the body, ensuring that the right amount of water is retained or excreted to maintain proper bodily functions and prevent water-related disorders such as dehydration or hyponatremia.
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Why are only some plants sexually produced?
Answers
Answer:
Explanation:
This is because some plants grown by seeds which is as a result of fertilization or fusion of the male and female gametes. Seeds carries the genetic information. These sexual reproduction lead to formation of offsprings which have different genetic information from the parent or that are genetically different from the parent and these help them to survive or thrive and adapt in various environment.
Which of the following describes flat inland areas, rich and fertile due to the constant replenishing of nutrients from decomposing grasses?
Estuary
Taiga
Temperate grassland
Tropical rainforest
Answers
Answer:
Taiga ,temperate grassland
Temperate grasslands are important biomes characterized by their fertility. The correct option is C. Temperate grassland are flat inland areas, rich and fertile due to the constant replenishing of nutrients from decomposing grasses.
BiomesBiomes are defined according to the vegetation structure and the other forms of life inhabiting them.Their location is determines by the climatic condition in each regions.Temperate grassland is one of the worlds biomes.Temperate grasslandsOpen plane areas covered by herbal vegetation, with a few deciduous woody species. Grasses dominate temperate grasslands.Distributed in the northern and the southern hemispheres.
They are severely affected by fires and tornados.
Fires, droughts, and grazing by animals prevent different woody species from establishing.
Temperature and rains in these regions widely vary with seasons.
The high levels of precipitation and humidity are characteristic of the biome.
Climatic conditions drove grass species to develop large roots to establish to the ground. This characteristic helps to reduce erosion and to keep soil humidity.The soils characterizes for being unusually rich, fertile, and deep.
Temperate grassland are then flat inland areas, rich and fertile due to the constant replenishing of nutrients from decomposing grasses. Option C is correct.
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Why don't some animals have vestigial structures?
Answers
Answer:
Vestigial structures are structures in the body that no longer serve a purpose but the organism has not lost them through evolution because the feature doesn't harm the organism.
In other words, it's a structure that used to have a purpose but doesn't anymore, so it's kind of just there.
Therefore, some animals don't have vestigial structures because they never lost the purpose of that structure. If it still serves a purpose, it can't be vestigial.
On the other hand, the feature could have become detrimental, meaning it caused the organism harm, in which case, over time, the species would evolve not to have them anymore.
Sammy is doing research that involves placing objects in the visual fields of visually impaired elderly men. you would suggest that sammy place the electrodes near the _______________
Answers
In Occipital lobe part of the brain can sammy place the electrodes.
One of the four main lobes of the cerebral cortex of the mammalian brain is the occipital lobe. The term comes from the Latin words ob, meaning "behind," and caput, meaning "the head," and refers to its location at the back of the head.
The majority of the physical region of the visual cortex is located in the occipital lobe, which is the mammalian brain's visual processing hub. The primary visual cortex is designated as Brodmann area 17, or V1 (visual one). Human V1 is situated in the calcarine sulcus, on the medial side of the occipital lobe.
The Occipital Lobe of the brain is the area that enables us to comprehend and perceive with accuracy what the eyes are perceiving and seeing. Processing the pictures that the eyes are seeing is another job of the occipital lobe. The occipital lobe performs more than just visualizing images received from the eyes; it also recognizes colors, which is necessary for reading and comprehension, as well as the movement of objects.
Correct Question:
Sammy is doing research that involves placing objects in the visual fields of visually impaired elderly men. He wants to discover what specific neurons fire in response to the features of the objects. The study requires electrodes to be implanted in the men's brains. In which part of the brain would you suggest Sammy place the electrodes?
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5. which of the following statements is true? a) mrna is the only type of rna found in the living system b) all forms of life employ the same genetic code c) a typical human liver cell has one set of chromosomes d) organisms interact but do not affect their environment
Answers
The true statement among the options provided is b) All forms of life employ the same genetic code.
The correct option is B
In general , genetic code, which consists of the correspondence between specific nucleotide sequences in DNA or RNA and the amino acids they encode, is universal among all known forms of life. This means that the same set of codons (three-nucleotide sequences) in DNA or mRNA specifies the same amino acids during protein synthesis, regardless of the organism.
On the other hand different types of RNA found in living systems, including mRNA (messenger RNA), rRNA (ribosomal RNA), tRNA (transfer RNA), and others. Each type of RNA serves distinct functions in gene expression and protein synthesis. Also, human liver cell (or any somatic cell) contains two sets of chromosomes, one set inherited from each parent, for a total of 46 chromosomes in humans.
Hence B is the correct option
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5. What are virus hoaxes? Why are the hoaxes sometimes more dangerous than an actual virus?
Answers
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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FUN FACT OF THE DAY (part:2)
Gorillas can actually catch human colds and sicknesses and make happy noises sometimes when eating!
What animal do you want to find out about tomorrow?
Answers
Answer:
a red panda maybe?? or a dolphin!!
Explanation:
this is cool keep doing you :) <3
Answer:
Bunnies
Explanation:
I am obsessed with them.Pls do it tmr
Why do multiple and lethal alleles often result in modifications of the classic Mendelian monohybrid and dihybrid ratios?
Select all that apply.
When the expression of a gene masks the effect of a second gene, it can result in a lethal phenotype. In this case, classic Mendelian monohybrid and dihybrid ratios will not be observed.
Multiple alleles means that there are more than two alternatives of a gene at a given locus. A diploid organism has two homologous gene loci that may be occupied by different alleles of the same gene. This can result in many different phenotypes for traits, which may not follow typical Mendelian ratios.
Multiple alleles means that there are more than one gene at a given locus. A diploid organism has one gene locus that may be occupied by different alleles of the same gene. This can result in many different phenotypes for traits, which may not follow typical Mendelian ratios.
When an essential gene is mutated, it can result in a lack of dominance. The resulting phenotype is called lethal. In the case of presence of a such allele, classic Mendelian monohybrid and dihybrid ratios will not be observed.
When an essential gene is mutated, it can result in a lethal phenotype. In this case, classic Mendelian monohybrid and dihybrid ratios will not be observed.
Multiple alleles means that the joint expression of several alleles in a heterozygote shows the third (not blended) phenotype. This can result in many different phenotypes for traits, which may not follow typical Mendelian ratios
Answers
Multiple alleles mean that there is more than one gene at a given locus. A diploid organism has one gene locus that may be occupied by different alleles of the same gene. This can result in many different phenotypes for traits, which may not follow typical Mendelian ratios, option B is correct.
Classic Mendelian ratios are based on the assumption of only two alleles, one dominant and one recessive, at a specific gene locus. However, when there are multiple alleles present at a locus, the interactions between these alleles can lead to deviations from the expected ratios. Different alleles can have different degrees of dominance or recessiveness, resulting in a range of phenotypic outcomes.
Additionally, lethal alleles, which cause death or severe impairment of the organism, can disrupt the expected ratios. When a lethal allele is present, individuals with that allele cannot survive to contribute to the observed ratios. Therefore, the presence of multiple and lethal alleles can modify the classic Mendelian ratios by introducing additional phenotypic variation and altering the expected frequencies of different phenotypes, option B is correct.
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The complete question is:
Why do multiple and lethal alleles often result in modifications of the classic Mendelian monohybrid and dihybrid ratios?
A. When the expression of a gene masks the effect of a second gene, it can result in a lethal phenotype. In this case, classic Mendelian monohybrid and dihybrid ratios will not be observed.
B. Multiple alleles mean that there is more than one gene at a given locus. A diploid organism has one gene locus that may be occupied by different alleles of the same gene. This can result in many different phenotypes for traits, which may not follow typical Mendelian ratios.
C. When an essential gene is mutated, it can result in a lethal phenotype. In this case, classic Mendelian monohybrid and dihybrid ratios will not be observed.
D. Multiple alleles means that the joint expression of several alleles in a heterozygote shows the third (not blended) phenotype. This can result in many different phenotypes for traits, which may not follow typical Mendelian ratios
The diagram below represents part of a process that occurs in cells. Which process is represented?
Answers
The process in cells represented by the diagram would be translation or protein synthesis.
The translation is a process in cell biology during which the genetic codes in messenger RNA are decoded into their respective amino acids and linked together by peptide bonds. The process usually takes place in the ribosome of eukaryotic cells.
During translation, the genetic codes on mRNA are read and the amino acid corresponding to each code is released. The small ribosomal unit first binds to the mRNA at the beginning. Thereafter, the tRNA binds to the start codon on the mRNA before the binding of the large ribosomal subunit to complete the initiation complex.
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taphylococcus epidermis is best described as: Group of answer choices an opportunistic pathogen a mutualist symbiotic partner resident microbiota
Answers
Staphylococcus epidermis is best described as a resident microbiota, which means that it is a normal part of the human skin microbiome and typically does not cause harm or disease. However, in certain circumstances, it can become an opportunistic pathogen and cause infections. It is not typically considered a mutualist symbiotic partner.
It can become an opportunistic pathogen in certain situations, such as when it enters the bloodstream through a breach in the skin barrier or during medical procedures such as surgery or the placement of medical devices like catheters or prosthetic joints. In those cases, it can cause infections, such as bloodstream infections or surgical site infections.
A pathogen is any organism or agent, such as a virus or bacterium, that can cause disease or illness in a host organism. Pathogens can be transmitted through various means, including direct contact, contaminated food or water, airborne particles, and vectors like mosquitoes or ticks. They can cause a range of illnesses, from mild infections to serious and life-threatening diseases.
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Which is a function of the cytoskeleton
Answers
Answer:
cytoskeleton is a structure that helps cells maintain their shape and internal organization, and it also provides mechanical support that enables cells to carry out essential functions like division and movement
Which of the below is NOT a law of thermodynamics?
Group of answer choices
Energy must be absorbed.
Energy cannot be created or destroyed.
Energy spreads out spontaneously.
The entropy of any isolated system always increases
Answers
A
Energy must be absorbed is not a law
Both Eukaryotic cell division and prokaryotic cell division cycles involve _____.
A. Growth
B. Replication of DNA
C. Cytokinesis
D. All of the above
Answers
Thereby, both eukaryotic cell division and prokaryotic cell division involves the growth, replication of DNA, and cytokinesis.
Both eukaryotic and prokaryotic cell division cycles involve growth, replication of DNA, and cytokinesis. However, there are some differences between the two types of cell division, such as the presence of a nucleus and membrane-bound organelles in eukaryotic cells, which affect the details of the process.
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Both Eukaryotic cell division and prokaryotic cell division cycles involve growth, replication of DNA, and cytokinesis. The correct Option is D. All of the above.
Cell division is the process of one cell dividing into two or more cells. The process of cell division is critical to the development, maintenance, and repair of multicellular organisms. Prokaryotic cells reproduce through a process called binary fission, which is a simple process involving DNA replication and cell division.''
Eukaryotic cells, on the other hand, undergo a more complex form of cell division called mitosis or meiosis, depending on the type of cells involved. Mitosis is the process of cell division in which a single cell divides into two identical daughter cells that are genetically identical to each other and to the parent cell. Meiosis is the process of cell division in which a single cell divides into four genetically diverse daughter cells. In both mitosis and meiosis, the cells undergo growth, DNA replication, and cytokinesis.
In conclusion, both eukaryotic and prokaryotic cell division cycles involve growth, replication of DNA, and cytokinesis. Prokaryotic cells reproduce through a process called binary fission, which is a simple process involving DNA replication and cell division. Eukaryotic cells, on the other hand, undergo a more complex form of cell division called mitosis or meiosis. In both mitosis and meiosis, the cells undergo growth, DNA replication, and cytokinesis. The correct Optionis D. All of the above.
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please someone help me I am so confused for question. what do I do?
Answers
In 2010, an explosion on an oil rig caused a terrible oil spill in the Gulf of Mexico. As oil started washing up on shore, the area wildlife was drastically affected. A scientist wonders: how do different amounts of water pollution affect the height of radish plants
Answers
When red snapdragon flowers and white flowers are crossed, pink flowers are produced . Cross a pink flower with a red flower. ( You definitely should make a Punnett Square) THERE ARE 3 ANSWERS TO THIS QUESTION: A) Is this codominance or incomplete dominance ? B) Genotype Ratio C) Phenotype Ratio
Answers
Suppose red is R, white=W, pink=RW
(Punett square is attached)
A) Incomplete dominance
B) 1:1
C) 1:1
How scientists know that these changes have happened, both today and in the past
Answers
Scientists use a variety of methods to study changes that have happened both today and in the past. The methods used depend on the specific type of change being studied and the time scale involved.
For current changes, scientists may use direct measurements, such as temperature readings, to monitor changes in climate. They may also use satellite imagery, remote sensing techniques, and computer models to track changes in things like land use, ocean currents, and atmospheric composition.
For past changes, scientists may use a variety of techniques to reconstruct past environments and climates. For example, they may analyze ice cores, tree rings, or sediment layers to study past climate patterns. They may also use fossil records to study changes in biodiversity over time. Additionally, isotopic analysis can provide information about past atmospheric composition and other environmental conditions.
Overall, scientists use a variety of methods and techniques to study changes in the Earth's environment, both past and present. These methods allow them to better understand the causes and effects of these changes, and to make predictions about future changes.
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An ASC would neverperform which of the following services?
Question 147 options:
A) Knee arthroscopy
B) Intraocular lens exchange
C) Hemorrhoid excision
D) Kidney-pancreas transplant
Question 148 (0.666666667 points)
This one-year-old boy has a midshaft hypospadias with a very mild degree of chordee. He also has a persistent right hydrocele. The surgeon brought the boy to surgery to perform a right hydrocele repair and one-stage repair of hypospadias with preputial onlay flap.
Question 148 options:
A) 54324, 55060, Q54.1, N43.3, Q54.4
B) 54322, 55040, Q54.1, N43.3, Q54.4
C) 54324, 55060-51, Q54.1, N43.3
D) 54322, 55041-51, Q54.1, N43.3
Answers
The answers include the following:
An ASC would never perform a Kidney-pancreas transplant and is denoted as option D.The code for the conditions such as one-stage repair of hypospadias is 54322, 55041-51, Q54.1, N43.3 ba dis denoted as option D.What is Medical coding?This is referred to as the process in which medical diagnosis and treatments are translated into numeric and alphanumeric characters in other to prevent ambiguity during documentation.
ASC is referred to as ambulatory surgery center and perform surgeries such as knee arthroscopy, intraocular lens exchange etc but are unable to perform transplants hence option D was chosen.
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The following is a short section of a DNA template before replication:
3’ TACGGCTTAACC 5’
Based on your knowledge of DNA replication, which sequence would be the correct complementary strand synthesized by DNA polymerase?
5’ AUGCCGTTUUGG 3’
5’ GGTTAAGCCGTA 3’
5’ ATGCCGAATTGG 3’
5’ CCAATTCGGCAT 3’
Answers
3’ TACGGCTTAACC 5’ based on knowledge of DNA replication, the correct complementary strand synthesized by DNA polymerase is
5’ ATGCCGAATTGG 3’ (option -c) is correct answer.
What is the procedure for DNA replication?There are three main steps in the replication process: priming the template strand, assembly of the new DNA segment, and opening of the double helix and separation of the DNA strands. The DNA double helix's two strands uncoil during separation at a specific spot known as the origin.
Additionally, in vitro DNA replication (DNA amplification) is possible (artificially, outside a cell). Starting DNA synthesis at recognized sequences in a template DNA molecule is possible using artificial DNA primers and cell-isolated DNA polymerases.
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Prokaryotic genomes ___. a. usually have introns. b. are composed mainly of noncoding DNA. c. usually have hundreds of millions of nucleotides. d. often have small circular DNA molecules that can be transferred across cells. e. have several chromosomes called plasmids.
Answers
Answer:
D,Prokaryotic genomes d. often have small circular DNA molecules that can be transferred across cells.
Explanation:
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A golf course is next to a river. The fertilizers they use for the golf course get washed into the river. What might happen as a result of the excess fertilizer?
A. The water warms due to excess nitrogen.
B. Nitrogen-fixing bacteria die off.
C. Fish die due to nitrogen-fixing bacteria.
D. Fish die due to algae blooms.
Answers
Anatomical similarities that represent variations on a structural theme present in a common ancestor are said to be analogous.
True
False
Answers
The process of osmosis in an animal cell
Answers
Answer:
diffusion of water molecules across a selectively permeable membrane from an area of higher concentration to an area of lower concentration.
Explanation:
Which part of a flowering plant transports pollen to the unfertilized egg cells?
O pistil
O petiole
O anther
O ovary
Answers
Answer:
pistil
Explanation:
Answer:
b
Explanation:
a. DNAse footprinting
b. Mobility shift assays
c. Chromatin Immunoprecipitation Assay
d. All of the above
e. None of the above
Answers
Why don’t we see an eclipse each month
Answers
Answer:
This is why we don't get a lunar eclipse every month.It's true that the moon goes around Earth every month, but it doesn't always get in Earth's shadow. The moon's path around Earth is tilted compared to Earth's orbit around the sun. The moon can be behind Earth but still get hit by light from the sun.
Explanation:
Hope this helped Mark BRAINLEST!!
How can diabetes be controlled?
Answers
Answer:
Diabetes can be controlled with insulin, medication, exercise and other things.
Explanation:
<3 Hopefully this helps! ^^
Polysaccharides, triacylglycerols, and proteins are similar in that they are.
Answers
Answer:
Dehydration reactions eliminate water from lipid membranes, and hydrolysis makes lip membranes water permeable. Polysaccharides, triacylglycerides, and proteins are similar in that they: a. all contain nitrogen in their monomer building blocks.
The process of glycolysis produces 4 ATP total, but we say that the net ATP production is 2 ATP. What happened to the two other ATP molecules