Data are fundamental in Life/Natural Science because they can help us to answer hypotheses.
What is a hypothesis?A hypothesis is a given explanation about a phenomenon observed from a question from the real world.
Data obtained from experimental and observational procedures helps to reject or confirm hypotheses.In conclusion, data are fundamental in Life/Natural Science because they can help us to answer hypotheses.
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Z 00m 336"083"2553 (wZE2XQ)
Skeletal muscle cells essentially engage in large shape changes to pull on bones to create movement. To do this shape change, skeletal muscle cells require a lot of energy and the production of a lot of protein used inside the cell to make the structures that change the shape. Name 3 organelles that would be important in this function (one for each function).
Answer:
Explanation:
1) The mitochondrion : is an organelle that makes energy available to the cell. They use energy from organic compounds (such as glucose) to make molecules of ATP (adenosine triphosphate).
2) Ribosomes: are small structures where proteins are made. Both subunits consist of proteins and RNA. RNA from the nucleus carries the genetic code, copied from DNA, which remains in the nucleus. At the ribosome, the genetic code in RNA is used to assemble and join together amino acids to make proteins. Ribosomes can be found alone or in groups within the cytoplasm, as well as on the RER.
3) Cytoskeleton: is the “frame” of the cell, keeping structures in place, providing support, and giving the cell a definite shape.The cytoskeleton organizes the cell and keeps the cell’s organelles in place, but it also aids in the movement of organelles throughout the cell.
difference between incomplete and complete ventilation? any 4
Answer:
Due to exchange of gases i.e. normal and abnormal.
Explanation:
The main difference between incomplete and complete ventilation is the occurrence of normal and abnormal exchange of gases. The mechanism in which the exchange of gas happens completely without any difficulty is called complete ventilation. It is the process in which the required amount of oxygen is inhaled or inspired and appropriate amount of carbon dioxide is exhaled out of the body while on the other hand, incomplete ventilation is a mechanism in which exchange of gases is not normal.
A cell has twice as many mitochondria as a typical cell. It also has a large amount of rough ER. What functions
might that cell have?
Answer:
below
Explanation:
If the initial ratio of 14C to 12C in the bones was one part per trillion (the current ratio of 14C to 12C in the atmosphere), approximately what ratio would we expect in bones that come from wolves trapped 28,500 years ago
Answer:
For the bones of wolves trapped 28,500 years ago, the approximate ratio of carbon-14 to carbon-12, 14C to 12C, will be one part per 32 trillion.
Explanation:
Radioactive isotopes of elements are useful for many purposes. Carbon has three isotopes, carbon-12, carbon-13, and carbon-14. Of these, carbon-14 is radioactive.
The half-life of an carbon-14 is used to determine the age of fossils in a process known as carbon-dating.
Carbon-14 has a half-life of approximately 5700 years. The half-life being the time for half the amount of the radioactive nuclei present in a radioactive element to decay.
The number of half-lives in 28500 years = 28500/57000 = 5 half-lives
This means that the original amount of atoms present in the atoms has undergone radiactive decay five times.
The ratio of the original amount of 14C to the present amount of 14C = (1/2)⁵ = 1/32
Ratio of 14C to 12C that will be found in the bones = 1/32 × 1/ 1 trillion = 1/32 trillion.
Therefore, for the bones of wolves trapped 28,500 years ago, the approximate ratio of carbon-14 to carbon-12, 14C to 12C, will be one part per 32 trillion.
Assignment: 04.02 The Biosphere
In this lesson, you took a tour of three of our unique aquatic biomes. In this assessment, you will take a virtual field trip to any aquatic ecosystem of your choice and learn about the biotic and abiotic factors that shape it.
A virtual field trip is a Web search of a location you are unable to visit in person. For this virtual trip, pick any sea, lake, bay, or river in the world and research the biotic and abiotic factors that make it unique. Include the following features in your virtual field trip research:
1. the location of your body of water
2. a description of the geography surrounding your body of water
3. the effects of sunlight on the aquatic life inhabiting your body of water
4. the depths and salinity of your body of water and how this shapes the types of aquatic life present
5. the effects of seasonal changes to water temperatures and aquatic life in your body of water
6. predictions or current research on the effects of climate change to your body of water
Once, you’ve gathered your research, share your virtual field trip with us. Include pictures of your aquatic ecosystem and the life within it in your presentation, but make sure to cite the sources of your pictures and research. Please review the student example and rubric for this virtual field trip before continuing.
You may share your field trip in any creative format you would like. Here are a few suggestions:
- video or media presentation
- slide show
- Web page
- illustration that includes research notes If you need would like an assessment outline
Thụ thể nào liên kết với một phân tử ngoài màng tế bào, hoạt hoá một protein kinase bên trong tế bào?
Answer:
?
Explanation:
a) Identify where exocytosis begins in this pathway.
How is the protein transported out of the cell?
Answer:
Protein cargo moves from the ER to the Golgi, is modified within the Golgi, and is then sent to various destinations in the cell, including the lysosomes and the cell surface. The Golgi processes proteins made by the endoplasmic reticulum (ER) before sending them out to the cell.
explanation:
correct me if I'm wrong (◍•ᴗ•◍)
In a Nitrogen metabolism study, the following data were obtained over the test period:
Nitrogen consumed 175 grams
Total Fecal N 35 grams
Metabolic Fecal N 10 grams
Total Urinary N 80 grams
Endogenous Urinary N 10 grams
Calculate:
a. Apparent Nitrogen digestibility (%)
b. True Nitrogen digestibility (%)
c. Nitrogen Balance (g)
d. Apparent Nitrogen Retention (%)
Answer:
a. 80%
b. 86%
c. 60 g
d. 34.29%
Explanation:
From the given information:
The apparent nitrogen digestibility (AD) is the ratio of the difference between the consumed nitrogen and fecal nitrogen to the consumed nitrogen.
Mathematically:
[tex]AD = \dfrac{consumed \ nitrogen - fecal \ nitrogen }{consumed \ nitrogen }[/tex]
[tex]AD = \dfrac{175 -35 }{175}[/tex]
AD = 0.8
To percentage, the apparent Nitrogen digestibility = 80%
b. True Nitrogen digestibility is calculated by the formula:
[tex]=\dfrac{consumed \ nitrogen - (fecal \ nitrogen -metabolic \ fecal)}{consumed \ nitrogen}[/tex]
[tex]= \dfrac{175 -(35-10)}{175}[/tex]
[tex]= \dfrac{175 -25}{175}[/tex]
= 0.86
= 86%
c. Nitrogen Balance = consumed Nitrogen - Fecal nitrogen - total uninary
Nitrogen Balance = (175 - 35 - 80) grams
Nitrogen Balance = 60 g
d. Apparent Nitrogen Retention (ANR) is computed as follows:
[tex]ANR = \dfrac{(consumed \ nitrogen-fecal\ nitrogen - total \ uninary )}{nitrogen \consumed }\times 100\%[/tex]
[tex]ANR = \dfrac{(175-35- 80 )}{175 }\times 100\%[/tex]
[tex]ANR = \dfrac{(60 )}{175 }\times 100\%[/tex]
ANR = 34.29%
What are the possible gametes for the individual with the genotype: YYSs?
Answer:
Hey mate I have wrote the answer
see it in the given picture!!!
Explanation:
Hope this help you
The possible gametes for the individual with the genotype YYSs are YS, Ys, YS, and Ys.
What are genotypes?An organism's genotype comprises all of its genetic components. The genotype is another name for an individual's alleles or genetic variations within a certain gene or genetic area.
There are three different genotype types: homozygous dominant (PP), homozygous recessive (pp), and heterozygous (Pp). Both homozygous dominant and heterozygous genotypes exhibit the same features. The formula 2n, where n is the number of heterogeneous alleles present in the genotype, is used to determine the total number of gametes that are produced by a specific genotype.
Thus, the possible gametes for the individual with the genotype YYSs are YS, Ys, YS, and Ys.
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Prepare a collage of tools and equipment used in production of any one agricultural crop, from seed or planting through packaging of the produce
Answer:
i think
Explanation:
The membranes that enclose and protect the
The external physical appearance of an indivi
B
A blood clotting disorder, occurring mainly in
recessive gene on the X chromosome.
4
An allele that is not expressed in the phenoty
heterozygous condition.
5 Changes that occur in the diameter of the pu
conditions.
Puplary mechanism
Answer:
B
Explanation:
Consider the factors that affect muscular strength. Read each scenario and then identify each label into the appropriate category based on whether each would result in a stronger or weaker muscle contraction.
a. Potassium accumulate in the sarcoplasm
b. Increase in muscle belly circumference
c. Lesser proportion of motor neurons to muscle fibres
d. Begin contractions with muscle already 50% contraction
e. Lower sarcoplasm pH
f. Increased stimulus frequency.
g. Circular arrangement of muscle fascicles
h. increased requirement.
Answer:
1. Weaker contraction:
a. Potassium accumulate in the sarcoplasm
d. Begin contractions with muscle already 50% contraction
e. Lower sarcoplasm pH
g. Circular arrangement of muscle fascicles
2. Stronger Contraction
b. Increase in muscle belly circumference
c. Lesser proportion of motor neurons to muscle fibres
f. Increased stimulus frequency.
h. increased requirement.
Explanation:
Sarcoplasm refers to the cytoplasm of muscle cells which contains ATP, enzymes, and a variety of ions, including potassium (K+). The negative potential required during muscle activity is produced from the disequilibrium of ionic concentrations (mostly Na+ and K+) across the membrane, which is generated through Na+/K+ ATPase pumps. During contraction, a muscle shortens, and thus its circumference increases. The generation of lactic acid is known to lower pH in the sarcoplasm and thus hinder the force and power development of the muscle fibers. Muscle fascicles can be arranged in concentric rings, it is a common pattern in sphincter muscles that modulate the opening and closing of orifices (which have weak contractions). A motor unit refers to a single efferent neuron and all of the muscle fibers it modulates. Each individual muscle fiber is innervated by one motor neuron, whereas a single motor neuron can innervate many muscle fibers. Finally, higher intensity/frequency are known to induce stronger muscular contractions, but also produce a stronger decline in force and cause more rapid muscle fatigue.
The bacterium Methylophilus methylotrophus can use methanol and ammonia for protein synthesis. The glutamate dehydrogenase gene from E. coli was introduced into M. methylotrophus using recombinant DNA techniques. Under high ammonia conditions, the introduction of the glutamate dehydrogenase gene into M. methylotrophus resulted in an increase in protein yield. Select the statements that are reasonable explanations for the increased protein yield in the modified M. methylotrophus. Glutamate dehydrogenase catalyzes the formation of glutamate and glutamine in a two-step process. Both glutamate and glutamine play a key role in amino acid synthesis, thus an increase in levels of glutamate and glutamine increase protein synthesis. Glutamate dehydrogenase has a low affinity for NH^+_4, and can only catalyze the formation of glutamate from alpha-ketoglutarate and NH^+_4, when the concentration of NH^+_4 is high. Glutamate dehydrogenase has a high affinity for NH^+_4, thus the rate of glutamate synthesis increases exponentially under high ammonia conditions. Glutamate is the amino group donor for most transamination reactions involving amino acids, thus an increase in glutamate concentration increases protein synthesis.
Answer:
- Glutamate dehydrogenase has a low affinity for NH+4, and can only catalyze the formation of glutamate from alpha-ketoglutarate and NH+4, when the concentration of NH+4 is high.
- Glutamate is the amino group donor for most transamination reactions involving amino acids, thus an increase in glutamate concentration increases protein synthesis.
Explanation:
Glutamate dehydrogenase (GLDH) is an enzyme found in prokaryotic and eukaryotic cells, which is known to catalyze the reversible oxidative deamination of glutamate (Glu) to alpha-ketoglutarate and ammonia at the same time the oxidation of NADH to NAD. In bacteria, this enzyme (GLDH) is efficient only at high concentrations of the ammonium cation (NH4+), because it has a low affinity for NH4+. Moreover, transamination is a pathway that involves the transfer of an amino group from one amino acid to a ketoacid in order to form new amino acids (this reaction is responsible for the deamination of most amino acids). Glu is the donor of amino groups in most of the reactions catalyzed by enzymes involved in the transamination between an amino acid and an alpha-keto acid. In consequence, in presence of GLDH, a high concentration of Glu will increase the production of new amino acids and therefore also protein synthesis.
1. Which of the following reproduce using spores?
wild flowers
pine tress
vegetable plants
mosses and ferns
PLEASE HELP MEEE
ASAP
URGENT
Answer:
pine trees
Explanation:
pine trees grow in cold areas where seed cannot be placed in flowers or fruits. hence they are placed in pine cones which protect the seed from cold and harsh weathers
Answer:
Mosses and Ferns
I did the test and this was the answer, hope this helps
I need to know the rate of the volume change for each section along with the rate of photosynthesis
Explanation:
25 at under time min. over rate of volume change
Which of the following is the correct order of events?
Select one:
a. Germination, pollination, growth of a pollen tube, fertilization
b. Fertilization, growth of a pollen tube, germination, pollination
c. Growth of a pollen tube, pollination, fertilization, germination
d. Pollination, growth of a pollen tube, fertilization, germination
Answer:
growth of a pollen tube ,pollination ,fertilization ,germination
What would most likely be the pioneer species in a plowed field?
Answer:
Didnt they bring Ox or Oxen along with them to draw carriges and to do heavy lifting.
In the food web above, if new species of insect were introduced that fed primarily on plantains, how would the following populations be affected? Indicate your answer by increase , decrease or no change and include a brief explanation of your reasoning.
A) greenfly
B) rabbit
C) fox
Answer:
This is a 50/50 answer. I believe it would be fox, sorry if this is incorrect.
Answer:
Greenfly- no change
The greenfly would remain unaffected because it doesn’t rely on plantains.
Rabbit- decrease
The rabbit relies on plantains as food so more competition would result in a decrease in the rabbit population
Fox- decrease
Lesser food means lesser foxes. The foxes prey like the rabbit and mouse eat plantains. If the mouse and fat population goes down so would the fox population.
25 POINTS!! If you chemically synthesized the DNA molecule ATGCCGAATG from individual nucleotides, what would be present in solution besides the DNA?
A. phosphate
B. RNA
C. lipids
D. glucose
Answer:
option a
Explanation:
What mechanism prevents or slows some chemicals from entering the brain, while allowing others to enter?
Answer:
The blood brain barrier blocks chemicals from entering brain tissue.
Explanation:
Some microorganisms cause human disease. Other microorganisms are used in making cheese, yogurt, and bread. Based on this information, the relationship between humans and microorganisms can be
A) beneficial, only
B) harmful, only
C) beneficial or harmful
what's the right blood cell
a. Why was it important in this case to identify Salmonella Typhi in the feces of the restaurant worker?
Answer:
Some other types of Salmonella cause typhoid fever or ... Most people with Salmonella infection have diarrhea, fever, and ..
Explanation:
Add as brainlist
First 20 elements which are isotopes?
Answer:
Isotopes (Stable) of the elements
Text lists sorted by:Value | Atomic Number | Alphabetical
Plots:Shaded | Ball | Crossed Line | Scatter | Sorted ScatterLog scale plots:Shaded | Ball | Crossed Line | Scatter | Sorted ScatterGood for this property:Atomic Number
Hydrogen1H, 2HHelium3He, 4HeLithium6Li, 7LiBeryllium9BeBoron10B, 11BCarbon12C, 13CNitrogen14N, 15NOxygen16O, 17O, 18OFluorine19FNeon20Ne, 21Ne, 22NeSodium23NaMagnesium24Mg, 25Mg, 26MgAluminum27AlSilicon28Si, 29Si, 30SiPhosphorus31PSulfur32S, 33S, 34S, 36SChlorine35Cl, 37ClArgon36Ar, 38Ar, 40ArPotassium39K, 41KCalcium40Ca, 42Ca, 43Ca, 44Ca, 46CaScandium45ScTitanium46Ti, 47Ti, 48Ti, 49Ti, 50TiVanadium51VChromium50Cr, 52Cr, 53Cr, 54CrManganese55MnIron54Fe, 56Fe, 57Fe, 58FeCobalt59CoNickel58Ni, 60Ni, 61Ni, 62Ni, 64NiCopper63Cu, 65CuZinc64Zn, 66Zn, 67Zn, 68Zn, 70ZnGallium69Ga, 71GaGermanium70Ge, 72Ge, 73Ge, 74GeArsenic75AsSelenium74Se, 76Se, 77Se, 78Se, 80SeBromine79Br, 81BrKrypton78Kr, 80Kr, 82Kr, 83Kr, 84Kr, 86KrRubidium85RbStrontium84Sr, 86Sr, 87Sr, 88SrYttrium89YZirconium90Zr, 91Zr, 92Zr, 94ZrNiobium93NbMolybdenum92Mo, 94Mo, 95Mo, 96Mo, 97Mo, 98MoTechnetiumNoneRuthenium100Ru, 101Ru, 102Ru, 104Ru, 96Ru, 98Ru, 99RuRhodium103RhPalladium102Pd, 104Pd, 105Pd, 106Pd, 108Pd, 110PdSilver107Ag, 109AgCadmium106Cd, 108Cd, 110Cd, 111Cd, 112Cd, 114CdIndium113InTin112Sn, 114Sn, 115Sn, 116Sn, 117Sn, 118Sn, 119Sn, 120Sn, 122Sn, 124SnAntimony121Sb, 123SbTellurium120Te, 122Te, 124Te, 125Te, 126TeIodine127IXenon124Xe, 126Xe, 128Xe, 129Xe, 130Xe, 131Xe, 132Xe, 134Xe, 136XeCesium133CsBarium130Ba, 132Ba, 134Ba, 135Ba, 136Ba, 137Ba, 138BaLanthanum139LaCerium136Ce, 138Ce, 140Ce, 142CePraseodymium141PrNeodymium142Nd, 143Nd, 145Nd, 146Nd, 148NdPromethiumNoneSamarium144Sm, 149Sm, 150Sm, 152Sm, 154SmEuropium151Eu, 153EuGadolinium154Gd, 155Gd, 156Gd, 157Gd, 158Gd, 160GdTerbium159TbDysprosium156Dy, 158Dy, 160Dy, 161Dy, 162Dy, 163Dy, 164DyHolmium165HoErbium162Er, 164Er, 166Er, 167Er, 168Er, 170ErThulium169TmYtterbium168Yb, 170Yb, 171Yb, 172Yb, 173Yb, 174Yb, 176YbLutetium175LuHafnium176Hf, 177Hf, 178Hf, 179Hf, 180HfTantalum181TaTungsten180W, 182W, 183W, 184W, 186WRhenium185ReOsmium184Os, 187Os, 188Os, 189Os, 190Os, 192OsIridium191Ir, 193IrPlatinum192Pt, 194Pt, 195Pt, 196Pt, 198PtGold197AuMercury196Hg, 198Hg, 199Hg, 200Hg, 201Hg, 202Hg, 204HgThallium203Tl, 205TlLead204Pb, 206Pb, 207Pb, 208PbBismuthNonePoloniumNoneAstatineNoneRadonNoneFranciumNoneRadiumNoneActiniumNoneThorium232ThProtactiniumNoneUraniumNoneNeptuniumNonePlutoniumNoneAmericiumNoneCuriumNoneBerkeliumNoneCaliforniumNoneEinsteiniumNoneFermiumNoneMendeleviumNoneNobeliumNoneLawrenciumNoneRutherfordiumNoneDubniumNoneSeaborgiumNoneBohriumNoneHassiumNoneMeitneriumNoneDarmstadtiumNoneRoentgeniumNoneCoperniciumNoneNihoniumNoneFleroviumNoneMoscoviumNoneLivermoriumNoneTennessineNoneOganessonNone
Answer:
I know 5 though
Oxygen 16O,17O,18O
fluorine 19F
hydrogen 1H,2H
neon 20Ne,21Ne,22Ne
sodium 23Na
I hope I have helped you babes ❤️
What is seed technology?why is still considered as one of the major subject in agriculture?
Please help me I beg youuuuuuu!!!
Can you please give me an environmental risk or benefit for artificial selection?
Explanation:
Risks:
may lead to a lack of variety in plant or animal species
The nutritional value of foods can be less
Benefits:
faster than natural selection
More selective breeds / Types
Explain why you would recommend the nguni cattle meat to consumers in your locality.
Answer:
Below
Explanation:
All different combinations were catalogued in the beginning of the century by a South African herdmaster. This work inspired the Nguni Cattle Register, a compilation of terms to describe in full a Nguni cow or bull. The cattle are medium-sized, with bulls weighing between 500 and 600 kg,[3] while cows weigh between 300 and 400 kg.
What is a plant nucleus
Answer:
All plant cells contain a nucleus, a structure that stores DNA and acts as a cell's command center. It is surrounded by the nuclear envelope and is filled with nucleoplasm. ... DNA is copied during DNA replication for new cells, as well as copied to RNA to make proteins in the nucleus.
How many kingdoms are there in the domain Bacteria?
O A2
OB. 1
O c. 3
O D. 4
Answer:
There is 1 kingdom in the domain Bacteria
Explanation:
Answer:
B. 1
Explanation:
one Kingdom
Domain Bacteria has one Kingdom: Kingdom Eubacteria.
How many kingdoms are there in the domain bacteria? | Study ...https://study.com › academy › answer › how-many-kingd...
