The concentration of prokaryotic cells at the surface of pelagic water compare with the concentrations at depths below 1000 m as option B: there is a decrease in concentration with increasing depth.
Prokaryotic cell counts often peak in sediments close to the surface and then rapidly decline as depth increases. However, the average cell concentration is still extremely significant at the typical marine sediment depth of 500 m. Prokaryotic cells are believed to have decreased by 97% due to the preferential removal of the most easily degradable organic matter components during burial. As a result, the remaining organic matter becomes more resistant and can only support a smaller prokaryotic population.
The Proteobacteria genus contains the majority of prokaryotic organisms in the ocean. These creatures have a variety of adaptations, such as compressible lungs and swim bladders that resemble lungs, to help them deal with the intense water pressure in their deep-water habitat.
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Complete question is:
How does the concentration of prokaryotic cells at the surface of pelagic water compare with the concentrations at depths below 1000 m?
A) There is a decrease in concentration from 1 m to 1000 m in depth, then a dramatic increase below 1000 m.
B) There is a decrease in concentration with increasing depth.
C) There is a steady increase in concentration with increasing depth.
D) There is an increase in concentration at depths below 1000 m.
Living organisms rely on four major biomolecules:carbohydrates, lipids, proteins, and nucleic acids.Carbohydrates are sugars and starches. Lipids are fatty acids. Proteins are long chains of amino acids. Nucleic acids are found in geneticmaterial. Two examples of biomolecules are shown here.Which elements from sugar molecules, such as glucose,are used to make amino acids?A. Carbon,Hydrogen, and OxygenB. Carbon, Hydrogen, Oxygen,and NitrogenC. Carbon, Hydrogen,and NitrogenD.Carbon, Oxygen, and Nitrogen
The elements from sugar molecules that are used to make amino acids are: Carbon, Hydrogen and Oxygen. Nitrogen is also necesay for amino acids, but carbohydrates are not a source of this element.
The correct answer is option A.
With this information, generate two hypotheses to address the question, "what type of molecule makes up the genetic material?". What two molecules could it be, based on known info at the time. Use meischer’s terminology.
The molecule present inside cells that carries the genetic material required for an organism to develop and operate is known as deoxyribonucleic acid (DNA), sometimes known as the genetic material carrier molecule. Thanks to DNA molecules, this knowledge can be transmitted from one generation to the next.
What is Deoxyribonucleic acid?The molecule that carries the genetic information required for an organism to grow and function is called deoxyribonucleic acid, or DNA. A double helix, which is made up of two linked strands that loop around one another to resemble a twisted ladder, is the shape of DNA. Deoxyribonucleic acid is a type of polymer consisting of two polynucleotide chains that coil around one another to form a double helix.referred to as deoxyribonucleic acid. Genetic material included in all recognised creatures, including many viruses, is essential to their growth, development, function, and reproduction. DNA and ribonucleic acid are examples of nucleic acids.To learn more about Deoxyribonucleic acid refer to:
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The rate at which a specific allele for red flower color appears within a population is known as its.
The rate at which a particular allele manifests itself within a population is known as the allele frequency (or gene frequency). In population genetics, evolution is referred to be a shift in an allele's frequency within a population.
The term "prevalent allele" refers to what kind of allele?Wild-type alleles are the most abundant alleles in a population. true. Usually, recessive alleles result in an increase in the production of functional proteins. false. When heterozygous for a recessive illness allele, a person typically has 50% of the normal protein levels.
What does the name allele mean?The alternative form or variations of a gene are referred to as "alleles." Individuals inherit one allele from each parent for each autosomal gene, and we routinely classify the alleles. They are typically referred to as wild-type, mutant, aberrant, or normal alleles.
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Why is sod valuable? a. loses fertility b. loses topsoilc. prevents soil erosion d. causes soil erosion
Sod or grass is valuable for an ecosystem because it prevents soil erosion, as stated in the
which characteristic(s) are used to distinguish members of the enterobacteriaceae from one another? group of answer choices both motility and the ability to ferment lactose. the presence or absence of the enzyme oxidase. both motility and the presence or absence of the enzyme oxidase. motility the ability to ferment lactose.
Litmus milk is primarily used to distinguish members within the genus Clostridium. It distinguishes Enterobacteriaceae from other gram-negative bacilli based on the ability of enteric solvents to reduce litmus.
Moreover, Enterobacteriaceae is a family of Gram-negative, facultatively anaerobic, non-spore-forming rods. Characteristics of this family include motility, catalase positive and oxidase negative includes reduction of nitrates to nitrites and acid production from glucose fermentation.
Members of the Enterobacteriaceae are bacilli, facultative anaerobes, fermenting sugars producing lactic acid, and various other end products. They are usually 1-5 μm long and have Gram-negative stains. Most have many flagella used for locomotion, but a few genera are non-motile.
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Recessive lethal alleles tend to be more common than dominant lethal alleles in part because.
Dominant deadly alleles may not be displayed until adulthood, just as the phenotype of death may not be instantly manifested by the recessive fatal allele.
What are Recessive lethal alleles?When an organism possesses two copies of the deadly allele, a recessive lethal gene can code for either dominant or recessive features without actually causing death. Cystic fibrosis, sickle-cell anemia, and achondroplasia are a few examples of human disorders brought on by recessive lethal genes.Only dominant lethal alleles are inherited; only recessive deadly alleles can be passed down from parent to child.Both the homozygote and the heterozygote for the dominant lethal allele will exhibit the deadly phenotype if the mutation is triggered by that allele. The homozygote for the deadly allele will exhibit the lethal phenotype if the mutation is brought on by the recessive lethal allele. The majority of deadly genes are recessive.To learn more about recessive lethal alleles refer to :
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Many eukaryotic genes can be placed into bacteria and expressed in bacterial cells. However, some modifications must be made for this to work successfully. What do you predict is a primary issue with expressing eukaryotic genes in bacterial cells?.
It is expected to observe as a primary issue a differential expression of eukaryotic genes in bacterial cells since in bacteria lack several gene modulation mechanisms such as epigenetic modulation.
What is the differential expression of eukaryotic genes?The differential expression of eukaryotic genes is a complex process that involves regulation both at transcriptional levels and posttranscriptional levels.
Therefore, with this data, we can see that the expression of eukaryotic genes is much more complex than bacteria and we have taken it into account when expressing eukaryotic genes into bacterial cells
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Evaluate Clara's practices for the prevention of parasite infestation in the following scenario.
Last year, Clara lost thousands of dollars when her sheep herd was infested with tapeworms. She has
always been diligent about keeping the pens clean and ensuring a proper diet. She has also always given
her sheep plenty of freedom by allowing them to wander day and night, and she even protects them from
the hot weather by putting them out to graze in the cooler evening hours. She hopes that this year the
herd will be more fortunate.
I believe Clara's actions will lessen the parasite infestation. I also believe she might arrange for routine veterinary examinations of the sheep to make sure they are free of any parasites that might infect the entire flock.
Because producers can see the visibly ejected worms whereas they cannot see stomach worms, only their symptoms or eggs, tapeworms frequently cause greater anxiety among sheep and goat farmers than stomach worms (nematodes) (in the feces).
People and animals with spines that have intestines are home to tapeworms, which are flat, ribbon-shaped worms. One of three classes of parasitic worms, they are long, segmented worms from the class Cestoda.
The move-and-dose strategy won't frequently work because many sheep pastures can't produce hay. To control parasites in this situation, prophylactic deworming treatments must be given throughout the season.
Clara's activities will therefore reduce the parasite invasion, I can infer. To ensure that the sheep are free of any parasites that could infect the entire flock, she might arrange for routine veterinarian checks of the animals.
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Question 4(Multiple Choice Worth 2 points)
(01.01 LC)
Which of the following scenarios would most likely be considered pseudoscience?
OA team of scientists replicating another experiment.
O Generating a claim based on empirical evidence.
O The theory of relativity.
The belief that the stars determine our fate.
The belief that the stars determine our fate is a pseudoscience.
what is pseudoscience ?
pseudoscience can be defined as a combination of two words pseudo means genuine and science which indicate that its not genuine science or its fake science.
pseudoscience is works on opinion basis which are believed to be based on scientific method but actually these practices are not based on scientific method.
Pseudoscience involves explanations of beliefs, includes subjective ideas; Some errors includes Having contradictory information, Exaggerated and false claims, Reliance on bias rather than facts
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All of the following are kinds of passive transport expect
A.diffusion
B.facilitated diffusion
C.osmosis
D.phagocytosis
E.ions channels
Answer: B
Explanation:
the tumor in colette's shoulder was considered to have malignant potential, although the pet scan was negative for metastasis to the lymph nodes. rather than treat her entire body with chemotherapy, colette's physician recommended a treatment more specific to the one area, radiation, and referred colette to a radiation oncologist. what is a radiation oncologist?
Specialist in treatment of disease with high-energy radiation.
Moreover, To correctly diagnose a hand nerve injury, your orthopedic doctor will perform a thorough evaluation, which includes a review of your medical history and symptoms as well as physical and neurological examination of your hand.
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A sarcomere that is at a resting length of 1. 7um will generate __________________ force compared to a sarcomere at 2. 15um.
A sarcomere will produce its maximum active force at a resting size around 1. 7um as opposed to 2. 15um.
What do sarcomeres do and what are they?Sarcomeres are the basic building blocks of muscle fibers or contractile units. The functional components responsible for producing muscle contraction are actin but also myosin, the two main protein filaments who make up each sarcomere. The most prevalent idea for why muscles contract is the hypodermic needle theory.
Why Do Sarcomeres Function?Muscle cells can be seen to contain striations and resemble stripes under a microscope. This pattern is formed by the layering of sarcomeres, a collection of basic muscle tissue units.
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What do these do in a CELL MEMBRANE? (detail explain)
Protein Channel
Carbohydrate
Phospholipid
Polar head (hydrophilic)
Nonpolar tail (hydrophobic)
HELPPPP ME PLEASE NEED NOW
A saturated solution is one that has as much of the solute present as is capable of dissolving. A solution is said to be unsaturated if it doesn't contain all of the solutes that can dissolve in it.
The type of material used and the temperature affect any liquid's saturation point. When the amount of dissolved solute reaches the solvent's saturation point, the solution is said to be saturated. Some specific kinds of solutes can dissolve in a solvent.
For a solution to form, a solute must be introduced to a solvent. A homogeneous solution is created when the solute dissolves in a solvent. An unsaturated solution is a term used to describe a solution in which solutes dissolve.
Accordingly, a solution is said to be unsaturated if it doesn't include all of the solutes that it is capable of dissolving. A saturated solution, on the other hand, contains as much of the solute as it is capable of dissolving.
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What is translation?
Translation in biology is defined as the process of turning nucleic acid information into amino acids. The study of genes, genetic variants, and heredity is part of the molecular foundation of inheritance. The molecular foundation of heredity consists of DNA, RNA, and genetic code
Explanation:
Translation in simple terms is turning the transcripted mRNA codons or sequences into amino acids.
Transcription in simple terms is DNA codons or sequences getting converted into mRNA codons or sequences.
Both of these together are called Gene Expression.
when ecf [k ] decreases (hypokalemia), then which of the following will occur? group of answer choices renin secretion will decrease aldosterone secretion will decrease activity of the na /k atpase on collecting duct basolateral membranes will increase angiotensin ii levels will increase cortical collecting duct cells will decrease k secretion
A decrease in the extracellular K+ concentration leads to hyperpolarization of the cell membrane and can result in muscle weakness that is occasionally severe enough to cause paralysis, which occurs in patients with hypokalemic dRTA.
Conversely, hypokalemia inhibits aldosterone production. Small changes in plasma potassium have a greater effect on aldosterone than on renin secretion. In patients with essential hypertension, diuretic-induced changes in serum potassium concentrations may affect both renin and aldosterone secretion. You also need potassium for a healthy digestive system and bone health. Low potassium can affect these important functions in your body. Over time, low levels of potassium in your body can cause effects such as abnormal heart rhythms, muscle weakness, and even paralysis.
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What is the phenotype of a black cat?A. blackB. bbC. BB or BbD. bb
We can assume that the black color of the cat is given by a dominant allele (B). We also have to consider that this is a tricky question, since they ask about the phenotype (trait, like color), instead of the genotype (alleles to a particular gene, like BB, Bb, or bb).
So the phenotype of a black cat is black, or the A answer option.
4. Chemical process that converts glucose wit
oxygen into energy (ATP) and carbon dioxide.
Cellular respiration is the process responsible for the conversion of glucose in the presence of oxygen into energy (ATP) as well as carbon dioxide.
Cellular respiration involves the breakdown of food materials inside the cell in order to release energy. Glucose is the substrate for the process of cellular respiration. The first stage of cellular respiration takes place in the cytoplasm. The glucose molecule is broken down through a series of enzyme-catalyzed reactions into two molecules of pyruvic acid, which is termed as Glycolysis.
The process of cellular respiration includes several bio-chemical reactions but it can be summarized in the form of following equation:-
C6H12O6 + 6O2 → 6CO2 + 6H2O + Energy (ATP)
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What is this Cell Called_________?
Answer: Plant cells
Explanation:
Answer:
plant cells
Explanation:
Identify the number classified as composite.
O 67
O 47
0 27
O 37
Answer:
27
Explanation:
Prime number - Can only be divided by one and itself
Composite number can be divided by numbers other than one and itself
Answer:
27
Explanation:
hope this helps!! have a great day, night, or afternoon!! O(n_n)O
If laci were mutated such that the lac repressor could no longer bind dna, what effect would this have on the regulation of the lac operon?.
The lac operon would be overexpressed and the repressor protein still wouldn't work correctly.
What does the lac operon's repressor do?The lac repressor protein is a tetramer made up of four identical subunits that prevents the lac operon from transcribing. The lacI gene, which is upstream of a lac operon it has its own promoter, produces the lac repressor.
What causes a repressor to be activated?Repressor. The met repressor is triggered when an amino corrosive binds to it. The repressor's presence on the Stranded dna prevents the creation of RNA. When the amino acid is absent, the repressor separates from the operator , RNA synthesis continues.
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After being used by the major organs of the body, deoxygenated blood is transportedback to the right side of the heart by two large veins known as theand enters the, quickly passing by the openvalve, where blood then enters and fills thechamber.After filling, the cardiomyocytes contract, produce force on the blood and push openthevalve and allow blood to exit into theBlood now enters the circulation of the lung for gas exchange to occur. Onceoxygenated, blood returns to the heart from the lungs by way of four large vesselscalled the, blood then moves into theandpast the openvalve filling thechamber.From here, oxygenated blood is pushed past thevalve and intothewhere blood is pumped into the systemic circuit.
Deoxygenated blood is transported back to the heart by the superior and inferior vena cava, it enters the right atrium, and it passes the opened tricuspid atrioventricular valve to the right ventricle.
The cardiomyocytes of the right ventricle contract and push the blood through the pulmonary semilunar valves to the pulmonary arteries. The blood flows through the pulmonary system, where the gases are exchanged, and the blood is oxygenated.
Then the blood returns to the heart through the pulmonary veins to the left atrium and past the bicuspid atrioventricular valve to the left ventricle.
When the left ventricle contracts, the blood is pushed through the aortic semilunar valves into the aorta where it enters the systemic circulation.
Can you please help me with this question thank you
Answer:
The error is "philosopher" at the end of the text
Explanation:
Which of the following observations would tell you that a cell is a prokaryotic cell? C. a flagellum D. DNA in the cytoplasm A. size of about 10 µm B. presence of a cell wall
Answer:
DNA in cytoplasm
Explanation:
As prokaryotes do not have a nucleus bounded by a nuclear membrane, the DNA will be prsent in the cytoplasm
describe the relationship between the functions of endosymbiotic organelles and their free-living ancestral counterparts
All organisms arose from a single common ancestor.
An endosymbiont or endobiont is any organism that lives inside the frame or cells of some other organism most often, though no longer continually, in a mutualistic relationship.
Bacterial endosymbionts result in dramatic phenotypes in their arthropod hosts, including cytoplasmic incompatibility, feminization, parthenogenesis, male killing, parasitoid protection, and pathogen blocking.
Endosymbionts, such as Wolbachia, Rickettsia, and Cardinium, are a type of bacteria generally located in arthropod species inclusive of bugs, spiders, crustaceans, and mites, in addition to other invertebrates along with filarial nematodesEndosymbiosis is a form of symbiosis in which the symbiont lives in the body of its host and the symbiont in an endosymbiosis is known as an endosymbiont.
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Which two statements explain why water is vital to sustaining a healthy ecosystem.
Answer:
clean fresh water is necessary for drinking and sanitation and it moves things like nutrients, pathogens and sediment in and out an ecosystem
A large, old tree deep in the forest was knocked down in a windstorm. As it fell, t pushed four other somewhat smaller trees down with it, opening up quite a
large patch of sunlight in an area that had been shady for many decades. What is most likely to happen in the sunny patch in terms of plant growth?
No plants will be able to grow in it until neighboring trees shade it more.
O Seeds of sun-loving plants will germinate and grow in it
O Primary succession will start vith very small plants or lichens.
O Shade-loving plants will grow in it. since is in the forest.
What would happen to the effectiveness of an original vaccination if a mutation in the virus caused the protein spike to change ? Make a claim that answers the question, then support that claim with evidence. What did you learn about mutations that would support your claim ?
Vaccine contain weaakened or inactive parts of the organism or antigen. It triggers the immune response of the body. If there is a mutation that caused the pretein spike to change, the effectiveness of an original vaccination will be affected. The antibodies from the vaccine are dire3cted against it and will no longer be effective and binding to destroy the virus. This will eventually escape immune surveillance. When there is a new variant, the original vaccination will not be effective completely. But somehow, it can provide at least some protection against the new virus variant. It will not make the original vaccination totally ineffective because it will still provide an elicit immune responce. It is possible to change the composition of the vaccine to provide protection against the new variants.
a person's red blood cells have both a and b antigens. the person has no anti-a or anti-b antibodies. what is ther person's blood type?
The person with both a and b antigens but no anti-a and anti-b antibodies has AB blood group.
The ABO system distinguishes 4 major blood types: Red blood cells in blood group A have A antigens and plasma blood group A has anti-B antibodies. Plasma blood group B has B antigens and anti-A antibodies. O - has no antigens, but the plasma blood group has both anti-A and anti-B antibodies. Blood group AB lacks antibodies but possesses both A and B antigens.
There are a total of 8 blood types, each of which can be either RhD positive or RhD negative. Sometimes a protein known as the RhD antigen, another antigen, is present in red blood cells. If RhD antigen is present, your blood group is specifically positive, and if it's not then the blood group is negative.
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Use your periodic table of elements. Take any element from the first column, except for hydrogen and lithium, and answer the following questions:
What is the element's name and symbol?
Is it a metal, nonmetal, or metalloid?
Which family does it belong to?
How many protons, neutrons, and electrons does its neutral atom have?
Sodium is a soft metal. It has the property of being tarnishes when comes in contact with air. The atomic number of sodium is 11. The sodium metal is highly reactive in nature and hence cannot occur as a free metal.
Alkali metals are the elements that form alkali or bases when reacted with water. The alkali metal family consists of six elements. These are: lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr).
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Answer:
What is the element's name and symbol?
The element's name is Sodium, on the periodic table its symbol is Na.
Is it a metal, nonmetal, or metalloid?
Sodium is an Metal
Which family does it belong to?
Sodium belongs to the family of Alkali Metals
How many protons, neutrons, and electrons does its neutral atom have?
Sodium has 11 protons, 11 neutrons, and 12 electrons