Use the numbers to put the steps of translation in order, from first (1) to last (5). The large ribosomal subunit completes the initiation complex. A stop codon is reached. The initiator tRNA binds to the start codon. Amino acids are paired with anticodons, gradually forming a long chain. The small ribosomal subunit joins the mRNA strand, and the start codon is identified.
3, the largest ribosomal subunit completes the initiation complex
5,A stop codon is reached
2, the initiator TRNA binds to the start codon
4,Amino acids are paired with anticodons gradually forming a long chain
1 , the small ribosomal subunit joints the mRNA strand and the start codon is identified
Studies show that the use of fat replacers will reduce the risk of obesity. false
Select the four statements about plasmodium that are true. view available hint(s) select the four statements about plasmodium that are true. plasmodium cells infect two specific types of cells in humans. the life cycle of plasmodium involves only haploid forms. plasmodium cells are transferred to humans through mosquito saliva. inside an infected mosquito, haploid gametes fuse, forming a haploid zygote that develops into an oocyst. when a mosquito bites a human with malaria, diploid plasmodium cells enter the mosquito. inside an infected mosquito, haploid gametes fuse, forming a diploid zygote that develops into an oocyst. the complete life cycle of plasmodium requires two hosts. submit
The four statements that are true are:
Plasmodium cells infect two specific types of cells in humans.Plasmodium cells are transferred to humans through mosquito saliva.Inside an infected mosquito, haploid gametes fuse, forming a diploid zygote that develops into an oocyst.The complete life cycle of Plasmodium requires two hosts.Humans and mosquitoes host Plasmodium. The female Anopheles mosquito injects sporozoites into humans during blood meals. Sporozoites infect liver cells and become schizonts, which burst and release merozoites.
Parasites infect red blood cells after liver replication. Infected mosquitoes fuse haploid gametes into a diploid zygote that becomes an oocyst. The mosquito's salivary glands get sporozoites from the oocyst rupture. Diploid Plasmodium cells penetrate mosquitoes after malaria bites. Plasmodium cells infect human liver and red blood cells.
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Final answer:
Four statements about Plasmodium that are true include its infection of two types of human cells, cell transfer through mosquito saliva, the formation of a diploid zygote in mosquitoes, and its requirement for two hosts to complete its life cycle.
Explanation:
The four true statements about Plasmodium, the parasite that causes malaria, are:
Plasmodium cells infect two specific types of cells in humans - the liver cells during the exoerythrocytic stage and the red blood cells during the erythrocytic stage.Plasmodium cells are transferred to humans through mosquito saliva - when an infected Anopheles mosquito bites a human, it injects sporozoites from its salivary glands into the bloodstream.Inside an infected mosquito, haploid gametes fuse, forming a diploid zygote that develops into an oocyst - this occurs in the mosquito midgut after it ingests gametocytes from an infected human.The complete life cycle of Plasmodium requires two hosts: a vertebrate host (humans) where the parasite develops in liver and red blood cells, and a mosquito vector where sexual reproduction occurs forming sporozoites that are passed on to the next vertebrate host.The statement that the life cycle of Plasmodium involves only haploid forms is incorrect because the zygote formed when gametes fuse is diploid. Additionally, the statement that inside an infected mosquito, haploid gametes fuse, forming a haploid zygote that develops into an oocyst is also incorrect as the zygote is diploid. Lastly, the statement when a mosquito bites a human with malaria, diploid Plasmodium cells enter the mosquito is incorrect because it is the haploid gametocytes that are ingested by the mosquito, not diploid cells.
Cultures of the lake of the ozarks water samples were grown on enrichment media for identification. however, these organisms are present to some degree in all samples. an important question from a clinical perspective is whether or not there is a significant increase in the fecal coliform populations that would put people's health at risk. if you were part of the team investigating this outbreak, how would you best enumerate the fecal coliform threat?
With a patient that is administered an injection of erythropoietin (epo) you would expect to see ________.
If a patient is administered with an injection of erythropoietin or EPO, it is expected to see an increase hematocrit. It is because erythropoietin stimulates red blood cell production in which when there is an over production of red blood cells, this could cause the hematocrit to increase.
Erythropoietin (EPO) injection stimulates the production of red blood cells (RBCs), benefiting patients with anemia and potentially enhancing endurance performance. Careful regulation is required to prevent complications from excessive increase in RBCs.
Explanation:When a patient is administered an injection of erythropoietin (EPO), you would expect to see an increase in the production of red blood cells (RBCs). EPO is a hormone that stimulates the bone marrow to produce more RBCs, leading to an increase in the total number of RBCs in circulation.
This increase in RBC production can have several beneficial effects. It can help treat conditions like anemia, where there is a decrease in the number of RBCs, and improve oxygen delivery to tissues. Additionally, it can enhance performance in endurance sports as more RBCs mean more oxygen is available to muscles.
However, it is important to note that the administration of EPO should be carefully regulated to prevent excessive increase in RBCs, which can lead to a condition called polycythemia. Polycythemia can increase the risk of blood clots and other complications.
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17) Compare the three scenarios below. Which scenario would natural selection most likely work?
A) An island with lizards that all look alike and are all eating the same food.
B) A population of salmon with different skin colors that attract mates.
C) A population of parakeets that have the same sized beak.
20) A new species of penguins is created, which of the following could cause this to happen?
A) An earthquake has happened to divide some arctic land and over time one penguin species became two different species that could no longer mate and reproduce.
B) A new predator moved into the environment lowering the number of the overall population of the penguins.
C) A sudden warming began melting the ice in the region causing the penguins to migrate further north.
21) Variation in a trait is a required condition for natural selection to act on a population for that trait. Assuming a population of organisms started with only one form of a trait, what is one way variation in the trait be introduced into the population?
A) Mutations
B) Fossils
C) There is no way to add variation to the population.
Answer 17: B). A population of salmon with different skin colors that attract mates.
The natural selection is a phenomena of differential survival and reproduction, the organisms that have better phenotypic trait are likely to survive and reproduce in the adverse environment. The population of salmon with different skin colors that attract the mates is the most likely scenario of natural selection because in the competition among members of the salmon in order to obtain their mates. The members that have a better phenotypic trait that is a color which is being more attractive for members of the opposite sex, likely to get the mate and reproduce.
20: A) An earthquake has happened to divide some arctic land and over time one penguin species became two different species that could no longer mate and reproduce.
Speciation is a natural phenomena in which a new species is formed from the existing parent species when some of the members of the population of the species get separated by geographic, behavioral and biological barriers. Such individuals because of these barriers do not inbreed resulting in the condition of reproductive isolation.
An earthquake has happened to divide some arctic land and over time one penguin species became two different species that could no longer mate and reproduce is an example of the speciation in the penguin population. The division of the land because of the earthquakes will separate the penguin population in two distinct lands. The separated land populations will evolve new traits and will be developed as new species.
21: A). Mutations
A mutation is a alteration or a change that occurs at either at a single base or the entire genome of the organism. This change brings the variation in the trait or particular characteristic of the organism. These variations can be transmitted to the population by sexual mode or reproduction and inheritance.
Biotic factors of an ecosystem could include which of the following? A. the quantity of water available B. all animal populations C. all types of plants D.the temperature range
Banded iron formations in marine sediments provide evidence of
Hybrid zones provide an opportunity to investigate _____. see concept 24.3 (page 514) view available hint(s) hybrid zones provide an opportunity to investigate _____. see concept 24.3 (page 514) mutations punctuated equilibrium the evolution of reproductive isolation allopatric speciation polyploidy
Hybrid zones allow us to study the evolution of reproductive isolation and speciation, as these zones facilitate significant genetic mixing and evolution of reproductive barriers.
Explanation:Hybrid zones provide opportunities to investigate the evolution of reproductive isolation. A hybrid zone is a region where interbreeding happens between two closely related species, resulting in hybrid offspring. In these zones, extensive genetic mixing can occur, offering a rich area for studying the mechanisms that can prevent or reduce gene flow, thereby influencing the formation of new species, a concept known as speciation. Moreover, as hybrids can have features from both parental lines, studying them can provide insights into allele fitness, leading to strengthened reproductive barriers, furthering our understanding of allopatric speciation.
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Hybrid zones enable examination of the evolution of reproductive isolation, along with reinforcement (increased divergence), fusion (merging of species) and stability (continuous production of hybrids). They provide insight into the processes of species evolution and speciation, especially concerning the nature of reproductive isolation and events like polyploidy.
Explanation:Hybrid zones provide an opportunity to investigate the evolution of reproductive isolation. This is because a hybrid zone is an area where two closely related species continue to interact and reproduce after speciation has occurred. Depending on reproductive barriers and the relative fitness of the hybrids, reinforcement, fusion, or stability may result.
Reinforcement refers to increased divergence between species due to the low fitness of hybrids, effectively encouraging the species to evolve further apart. Fusion, on the other hand, can occur when reproductive barriers weaken, causing two species to merge back into one. Stability occurs when reproductive barriers and the fitness of hybrids remain constant, allowing for the continuous production of hybrid offspring.
Species evolution, the formation of new species (speciation), the nature of reproductive isolation, prezygotic/postzygotic barriers and events like polyploidy are all related aspects that can be studied in the context of hybrid zones.
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According to the principle of competitive exclusion, two species cannot continue to occupy the same _____. (concept 54.1)
Which processes lead to most genetic variation in sexually reproducing organisms? select all that apply. select all that apply. crossing over independent orientation of chromosomes in meiosis random fertilization cytokinesis submitprevious answersrequest answer?
Answer:
The correct answer is crossing over.
Explanation:
Genetic variation in organisms is the basis of diversity of organisms on this planet.
This genetic variation in organisms happens during the time of gamete formation in meiosis where the exchange of chromosome takes place in pachytene stage of prophase I. This exchange of segment is called recombination which produces a unique combination of the allele.
Thus, crossing over is the correct option.
Which of the following characteristics of living things explains why plants bend and grow towards a light source?
A)they are made of one or more cells
B)the respond to stimulli
C)they reproduce
D)they maintain homeostasis
Answer:
b
Explanation:
Two parents of normal phenotype have a son with an autosomal recessive linked genetic disorder. What is the most likely cause of this?
a. Both parents must be heterozygous for the disorder, or carriers.
b. Because most of a human's genes are autosomal, it was never noticed that the parents had the condition.
c. Because the condition is on the X chromosome and the child only has one copy of the X.
d, Some environmental effect in the womb caused the child to express the disorder.
The answer: Both parents must be heterozygous for the disorder, or carriers. I'm positive of this answer because I took the test.
Veterinary scientists argue that for livestock, poisoning from plants often happens because of poor herd management.
a. True
b. False
Answer: True
Most livestock poisoning by plants often happens due to poor herd management. The poisoning is usually associated with lack of forage due to range conditions such as drought that leads to starvation, cold and other incidences that can influence an animal where it will eat too much of vegetation including those poisonous plants. Additionally, this could result to disruptive harvesting of livestock in rangeland and pastures, making it unprofitable.
Chemical digestion reduces large complex molecules to simpler compounds by the process of ________.
____________ is the process of taking material into the cell by means of infoldings of the cell membrane.
a.diffusion
b.endocytosis
c.exocytosis
d.infiltration
Select all that apply.
Which of the following statements about Boyle's law are correct?
The temperature and pressure must remain constant for the law to apply.
The temperature and the number of molecules must remain constant for the law to apply.
As the pressure of a gas increases, the volume increases proportionally.
As the pressure of a gas increases, the volume decreases proportionally.
Final answer:
Boyle's Law states the volume of a gas is inversely proportional to its pressure, provided temperature and the number of gas molecules remain constant. Correct statements about Boyle's Law include the necessity for constant temperature and number of molecules, and that an increase in pressure leads to a proportional decrease in volume.
Explanation:
The question asks for a clarification on statements about Boyle's Law, which is a fundamental principle in physics related to the behavior of gases under varying pressures. Boyle's Law states that for a given amount of gas at a constant temperature, the volume of the gas is inversely proportional to its pressure. This means if pressure increases, the volume decreases, and vice versa, assuming the temperature and the number of molecules of the gas remain unchanged.
The temperature and the number of molecules must remain constant for the law to apply.As the pressure of a gas increases, the volume decreases proportionally.Therefore, the correct statements relating to Boyle's Law are that the temperature and the number of molecules must remain constant for the law to apply, and as the pressure of a gas increases, the volume decreases proportionally. These principles help in understanding and predicting the behavior of gases under different pressures.
A species is a group of organisms capable of mating and producing offspring. this is another way of saying that a species is ____________ isolated. question 1 options: extremely geographically inductively reproductively
Answer:
reproductively
Explanation:
A biological species is defined as group of individuals that can interbreed among themselves and can produce fertile progeny. Members of two different species can not interbreed and produce the fertile progeny. Therefore, a species is a group of organisms capable of mating and producing offspring and is reproductively isolated from other species.
Which is a disadvantage of using aquaculture to produce fish? apes?
Total parenteral nutrition (tpn) should be used cautiously in clients with pancreatitis because such clients:
Total parenteral nutrition (TPN) should be used cautiously in clients with pancreatitis due to possible complications and the necessity of close monitoring for glucose levels. Consideration of quality of life and ethical implications is also vital in the management of such patients.
Total parenteral nutrition (TPN) should be used cautiously in clients with pancreatitis because it can contribute to complications such as higher rates of pressure ulcers and pneumonia, particularly in patients who are bedbound for extended periods. The use of TPN avoids the normal stimulation of the pancreas by enteral nutrition, which can affect the disease course of pancreatitis. It is important to consider the overall quality of life for such patients, as long-term artificial nutrition may lead to ethical dilemmas amongst healthcare personnel and the patient's family members. Implementing TPN requires careful planning and coordination of care.
Moreover, pancreatitis patients often face challenges related to glucose control, as their condition can affect insulin production and release. While insulin injections are a means to manage glucose levels, they cannot perfectly mimic the body's natural regulation of insulin. Therefore, patients receiving TPN must be carefully monitored for potential hyperglycemia or hypoglycemia, which are pathological sequelae of diabetes that can be exacerbated in cases of pancreatitis.
Based on the graph, which two organisms are most closely related?
A. brown algae and red algae
B. euglena and brown algae
C. brown algae and dinoflagellates
D. euryarchaeotes and diplomonads
When blood glucose levels drop below normal, hormones signal the breakdown of ______, which releases glucose into the blood?
When the level of glucose drops below the normal level there occurs the breakdown of glycogen so as to provide glucose molecule to the body as it acts as the immediate source of energy.
Further Explanation:
Glycogen is the stored form of carbohydrate in the body of living organisms. When the level of glucose in the blood drops down then this stored glycogen is broken down to release glucose in the blood which acts as an immediate source of energy.
Glycogen and Insulin hormone act as the main signals that determine the level of glucose in the bloodstream. Glucagon enhances the level of glucose in the blood while insulin decreases the level of glucose in the blood insulin induces the cells to take of glucose thereby decrease the amount of glucose in the blood. A high level of glucose may cause diabetes.
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Answer Details:
Grade: Middle school
Chapter: Biomolecule
Subject: Biology
Keywords:
Glucose, glycogen, energy, carbohydrate, living organism, blood, Insulin, bloodstream, glucagon, diabetes.
Which organs or tissues prefer to use ketone bodies such as acetoacetate as a fuel energy source instead of glucose?
In most plant-pollinator interactions, plants species are pollinated by
Answer:A E
Explanation:
In your own words, explain how cladograms provide reliable information about the evolution of organisms based on adaptations.
Answer: Cladogram can be defined as the diagram in which the cladistics shows the relationships among organisms.
It is different from an evolutionary tree as it does not shows how the species are related to their ancestors.
It uses a line that turns into different branches in different directions ending at a clade, which shows a group of organisms with last common ancestors.
Debridement is used to remove ________ from the skin. necrotic tissue wrinkles bacteria a cancerous tumor
One trait a plant can have is either red leaves (R) or brown leaves (r). Another trait is tall stems (T) or short stems (t). A plant used in a dihybrid cross has the genotype RRTt. What is the phenotype of this plant ?.
A. Brown leaves , tall stems
B. Red leaves , tall stems
C. Red leaves , short stems
D. Brown leaves , short stems
Answer: Option B. Red leaves, tall stems.
Explanation:
For a given gene there are two or more alternative forms present called as alleles. The alleles of a given gene can either be dominant or recessive.A dominant gene is the one which governs the phenotype in both homozygous and heterozygous condition whereas the recessive gene only gets expressed in homozygous condition.In the given question the allele R (red leaves) and T (tall stem) is dominant and, therefore, RRTt genotype will have red leaves and tall stem.Answer:
Red leaves, tall stems
Explanation:
on apex
The fact that a strain of yeast with a certain defective gene can use the human version of the gene to repair itself is evidence that yeast and humans - A) depend on the same food supply B) share a genetic code Eliminate C) both have eukaryotic cells D) have identical genomes
Answer: Option B
Explanation:
The yeast and human beings are genetically different but some part of their genome is same.
The yeast and the human beings are similar in the way that they share the same genetic code. This is the reason when required the yeast can use a part of the human genome to compensate for the defective part of the gene.
The yeast and the human genome contains some part as in common so that human genome can be used in case of the emergency.
Hence, the correct answer is option B
A client sustains a vertebral fracture at the t1 level and is admitted to the emergency department. during a detailed neurologic assessment, the nurse expects to identify which clinical manifestation? difficulty breathing inability to move the lower arms normal biceps reflexes in the arms loss of pain sensation in the hands
Plants use photosynthesis to meet their survival needs by enabling them to