Advantages of vegetative reproduction
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Answer:
Vegetative reproduction is any form of asexual reproduction occurring in plants in which a new plant grows from a fragment or cutting of the parent plant or specialized reproductive structures, which are sometimes called vegetative propagation.
see the attached file for advantages
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The area of genomics that studies the similarities and differences in gene content, function, and organization of whole genomes of different organisms is _____ genomics. Please choose the correct answer from the following choices, and then select the submit answer button. Answer choices
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The area of genomics that studies the similarities and differences in gene content, function, and organization of whole genomes of different organisms is Comparative genomics.
The objective of comparative genomics is to compare two or more genomes in order to identify their similarities and differences as well as to learn more about the biology of each genome.Researchers can learn what distinguishes various living forms from one another at the molecular level by comparing the genomic sequences of various creatures. Additionally, comparative genomics offers a potent tool for examining how organisms have evolved through time. It may be used to find genes that are conserved or shared by many species as well as genes that give each organism its own traits.
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Do high percentages of sand particles contribute to high porosity or low porosity soil?
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Answer:
No, high percentage of Sand particles don't contribute to high porosity. Water in sandy soil just passes through it because of larger pore diameter.
A high percentage of sand particles contributes to low porosity of soils.
What is porosity?Porosity is a characteristic that determines the level of pores in soils.
When it comes to porosity, the component of soil with the highest is clay, followed by silt, and then sand.
Sand particles are large and leave little pores as compared to the particles of silt and clay which are smaller.
Thus, the more sand particles in soils, the lower the porosity.
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An example of mitosis at work is a plant root
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Answer:
elongating
Explanation:
^
The best action humans can take to decrease the effect of harmful growth and reproduction of algae is to:.
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Control fertiliser usage; this action will show a high decrease in the effect of harmful growth of algae
How will it work?
The fertilisers are chemical or biological mixtures that provide the essential inorganic and organic nutrients that a soil ordinarily lacks yet that plants need for healthy growth and crop production.
Increased fertiliser use has the potential to contaminate both land and water. Due to the addition of fertiliser minerals to the nearby water body as a result of surface runoff, plants and algae flourish excessively due to the availability of nutrients. Eutrophication is the term for this phenomenon.
As a result, fertilisers should only be used in limited quantities to prevent eutrophication.
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As Phase 1 of the action potential is initiated, the membrane is _____. This is caused by the ______ of ________ ions
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As Phase 1 of the action potential is initiated, the membrane is repolarized. This is caused by the efflux of K+ ions.
Repolarization of Neurons
Repolarization is the process of return of the membrane potential to the negative value before depolarization. During depolarization, the membrane potential becomes a positive value which is returned to a negative value during repolarization.
During repolarization, the sodium channels close and the voltage-gated potassium channels open up. This reduces the permeability of the membrane to the sodium which causes the decline in the entry of sodium ions. During this time the voltage-gated potassium channels are opened up and the potassium ions come out. This restores the negative membrane potential of the cell membrane.
The return of a negative charge from a positive charge lasts only for a brief moment. The process lacks only a few milliseconds. Various channels involved in repolarization are A-type channels, Ca2+ activated K+ channels, delayed rectifiers, etc.
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Tongue rolling was thought to be an example of a human trait controlled by a single gene, but we now know that identical twins, who share 100% of their DNA sequences, will only share the tongue-rolling trait 70% of the time. This indicates that tongue rolling may also be controlled by the environment. True False
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Answer:False probably
Explanation:
as no sign of environment controlling tongue rolling.
Tongue rolling is often saw in every 7/10 people.
Which of these provides evidence from developmental biology of a shared evolutionary history?
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An evidence for a shared evolutionary relationship between organisms is in the similarity of embryos.
What is an evidence of a shared evolutionary history in developmental biology?An evidence for a shared evolutionary relationship between organisms is found in developmental biology.
The embryo of the different species such of higher animals such as aves, amphibians, reptiles and mammals show a similarity in the embryo stage.
For example, there is the presence of gills in the embryos.
In conclusion, similarity in embryos is an evidence of a shared evolutionary history.
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ILL GIVE BRAINLIEST!
1. In your journal, state the function performed by each numbered structure in the figure.
2. Now name a cell structure that performs each of these same functions.
3. Does "Cell City" represent a plant cell or an animal cell? Explain your answer.
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This cell city represents plant cell due to the presence of chloroplast.
What represents each part of the city?In the cell city, the power plant represents mitochondria due to its production of energy. The storage tanks represent vacuoles because in cells in vacuoles materials are stored.
The transport company represents Golgi apparatus which also transport material within the cell, city hall represents nucleus because all the activities can be controlled from here.
The waste disposal plant represents Lysosomes because it removes waste. The construction site represents Ribosomes and Endoplasm Reticulum where proteins are produced. The food processing company represents Chloroplasts.
"Cell City" represent an plant cell because it has chloroplast which is only present in plant cell.
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alter repressor proteins thereby increasing the rate of transcription initiation. Multiple Choice Inducers Corepressors Effectors Modulators
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Inducers alter repressor proteins thereby increasing the rate of transcription initiation.
What are inducers?A substance that is capable of activating the transcription of a gene by combining with and inactivating a genetic repressor.
What are repressors?Repressor protein directly binds to the operator sequence of the gene and inhibits gene expression
Corepressor protein binds to the repressor protein and indirectly regulates (inhibit) the gene expression.
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Mutations within an organism can occur in body cells or reproductive cells. Which type of mutation is seen in a spen
cell but not in a skin cell?
somatic mutation
• missense mutation
• nonsense mutation
• germline mutation
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Answer:
answer is Germline mutation
Which is tied to a person’s beliefs in regard to persuasive speaking? a. a person’s likes and dislikes b. religion or lack of religion c. customs in other countries d. the manners learned from their family
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A person’s beliefs in regard to persuasive speaking is tied to a person’s likes and dislikes; option A.
How does a person's belief affect his speaking?The belief a person has will affect the verbal and non-verbal cues of the individual. Also, the likes and dislikes of the individual will also affect his persuasive speaking abilities.
In conclusion, a person's likes and dislikes affects a person's persuasive speaking.
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Botulism is caused by ingestion of a proteinaceous exotoxin; therefore, it can easily be prevented by
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Botulism can easily be prevented by boiling food prior to consumption.
What is Botulism?Botulism may be defined as an imperative food poisoning that is provoked by botulinum toxin delivered in food by a bacterial species clostridium botulinum.
Clostridium botulinum inhibits the release of acetylcholine in the neuromuscular junction and causes defects in sensory perception through the central nervous system.
It can only be prevented by taking the proper boiled food prior to consumption.
The complete question is as follows:
boiling food prior to consumption. administering antibiotics to patients.not eating canned food.filtering food.preventing fecal contamination of food.Therefore, the correct option for this question is A, i.e. boiling food prior to consumption.
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how would the nervous system function be affected if both the presynaptic and postsynaptic neurons at every synapse had both synaptic vesicles and neurotransmitter receptors
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Small, electron-lucent vesicles known as synaptic vesicles (SVs) are grouped at presynaptic terminals. They hold neurotransmitters and exocytosis, which is stimulated by calcium, releases them. After exocytosis, SVs are formed locally at the terminals.
From the presynaptic cell with synaptic vesicles to the postsynaptic cell with neurotransmitter receptors, a signal always moves in one direction across the chemical synapse. The correct routing of nerve signals throughout the body is guaranteed by this one-way communication.A signal is transmitted from one neuron—the presynaptic, or sending, neuron—to another neuron—the postsynaptic, or receiving, neuron—at the synapse, increasing or decreasing the likelihood that the postsynaptic neuron will fire its own action potential.The stimulation causes a sensory neuron to go into an action potential, which alters the motor neuron's potential. Excitatory because it tends to depolarize the cell, this potential is known as an excitatory postsynaptic potential (EPSP).learn more about synaptic vesicles here:https://brainly.com/question/5865840
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Which two statements best describe the role of lymph in the human body?
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In most all cases, the absence of hitchhiker's thumb reflects a dominant hereditary status and the presence of hitchhiker's thumb a recessive status. If a man who is homozygous dominant [ 'HH' ] for the genes controlling this trait mates with a woman who is homozygous recessive [ 'hh' ], what is the likelihood their offspring will have hitchhiker's thumb
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If a man who is homozygous dominant [ 'HH' ] for the genes controlling this trait mates with a woman who is homozygous recessive [ 'hh' ] the likelihood of their offspring having hitchhiker's thumb will be 0%.
The absence of hitchhiker's thumb reflects a dominant hereditary status and the presence of hitchhiker's thumb a recessive status.thus the man with HH will be homozygous dominant and the hitchhiker's thumb will b absent.the woman with hh will be homozygous recessive and the hitchhiker's thumb will be present.Mating the male and female the following cross is obtained:
HH X hh (parents) Hh, Hh, Hh, Hh (offspring)Hence the hitchhiker's thumb will be absent in all the offspring as they will be heterozygous dominant for the trait. Thus, the likelihood their offspring will have hitchhiker's thumb is 0%.
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If a man who is homozygous dominant [ 'HH' ] for the genes controlling this trait mates with a woman who is homozygous recessive [ 'hh' ] the likelihood of their offspring having hitchhiker's thumb will be 0%.
What is a hitchhiker's thumb?Some folks have extremely mobile thumbs. This indicates that they bend backward more than usual. Hitchhiker's thumb is referred to in medicine as distal hyperextensibility. The Z-shaped malformation of the thumb is another name for it. Both the pain and difficulty using your hands are unaffected by the hitchhiker's thumb.
When a hitchhiker's thumb is present, a recessive hereditary status is present, and when it is absent, a dominant hereditary status is present.
As a result, the hitchhiker's thumb won't exist in the homozygous dominant HH male.
The hitchhiker's thumb will be present in the homozygous recessive female hh.
The following cross is produced once the male and female are mated:
HH X hh (parents)
Hh, Hh, Hh, Hh (offspring)
As all of the offspring will be heterozygous dominant for the trait, no one will have the hitchhiker's thumb. Therefore, there is a 0% chance that their offspring will have a hitchhiker's thumb.
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Visit a site where a natural resource such as quarry farm or water treatment plant is produced or where waste is processed such as a landfill or wastewater treatment plant and describe the process that takes place as the site
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Chemical coagulation, flocculation, sedimentation, filtration, and disinfection are the processes that take place at water treatment plant.
Describe the process that takes place at the site?There are various processes takes place at the water treatment plant site such as chemical coagulation, flocculation, sedimentation, filtration, and disinfection. There are chemicals added to the water as it enters the various treatment processes.
So we can conclude that chemical coagulation, flocculation, sedimentation, filtration, and disinfection are the processes that take place at water treatment plant.
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Ways by which nitrogen is lost
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Answer:
There are mainly two processes through which nitrogen is lost.
1. denitrification
2. anaerobic ammonium oxidation (anammox).
However if you mean in the atmosphere,
Nitrogen losses include nitrates dissolved in surface runoff, soil erosion, organic nitrogen attached to wind and water- borne sediment; and ammonia and nitrogen oxides lost to the atmosphere.
Nitrogen can be lost from the environment through various processes. Such as Volatilization, Denitrification and Leaching.
Here are three ways by which nitrogen is lost from the environment:
1. Volatilization: Nitrogen compounds, such as ammonia (NH₃), can be converted into gas and released into the atmosphere in a process called volatilization.
This commonly occurs when nitrogen-based fertilizers are applied to agricultural fields. The ammonia can escape into the air, leading to the loss of nitrogen from the soil, reducing its availability for plant uptake.2. Denitrification: Denitrification is a microbial process where certain bacteria convert nitrates (NO₃⁻) found in soil or water into gaseous forms like nitrous oxide and nitrogen gas.
These gases then escape into the atmosphere, removing nitrogen from the terrestrial or aquatic ecosystems. Denitrification often occurs in oxygen-deprived or anaerobic environments, such as waterlogged soils.3. Leaching: When there's too much nitrogen in the soil as nitrates or ammonia, it can be carried away by rain or irrigation water, seeping deeper into the soil or entering water bodies.
This process is called leaching and can lead to nitrogen loss from the root zone, affecting plant growth.Thus, various mechanisms have the potential to remove nitrogen from the environment. such as leaching, denitrification, and volatilization.
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You are a research scientist studying bioluminescent bacteria (bacteria that can glow). You grow several plates of bacteria and give them a special chemical that you hypothesize will increase their luminescence, or brightness. You turn off the lights and use a device called a photometer to measure the light levels (in lumens) coming from each plate. You collect the following data:
Plate 1: 7 lumens, 6 lumens, 13 lumens
Plate 2: 4 lumens, 5 lumens, 7 lumens
Plate 3: 3 lumens, 6 lumens, 7 lumens
Plate 4: 5 lumens, 5 lumens, 8 lumens
Which of the following pieces of data is likely an outlier?
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From the data, the plate that is probably an outlier is that of plate 1, where a value much above the average of the other plates occurred.
Plate 1: 7 lumens, 6 lumens, 13 lumensHow does the phenomenon of bioluminescent animals happen?Bioluminescence is the emission of cold, visible light by living organisms. It occurs in various organisms
bacteriafungialgae coelenterates molluscsarthropods fish, mainly in the marine environment. In the terrestrial environment it occurs in fungi, annelids, molluscs and mainly in insects.
With this information, we can conclude that from the data, the plate that is probably an outlier is that of plate 1, where a value much above the average of the other plates occurred.
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Lab: Mineral and Rock Classification
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Rocks are objects mainly composed of minerals, which are categorized as igneous, metamorphic and sedimentary.
What is a rock?Rocks are objects composed of two or more different types of minerals, which reacted over a geological scale.
Igneous rocks are formed by minerals found in magma when it crystallizes, whereas sedimentary rocks are formed by geological processes such as erosion.
Finally, metamorphic rocks underwent high heat/pressure, or also mineral-based processes on the geological scale.
In conclusion, rocks are composed of minerals and categorized as igneous, metamorphic and sedimentary.
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10. What's an Environmental Impact Statement (EIS)?
O A. It's a document used as evidence in court to prosecute polluters.
O B. It's a document used to communicate to the public about the state of the environment.
C. It's a document that must be submitted annually by any company with a permit to demonstrate that they're following regulations.
O D. It's a document that describes the effects proposed activities might have on the environment.
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Answer: D. A document that describes the effects proposed activities might have on the environment
Explanation: An Environmental Impact Statement describes and analyzes a proposed action which may have a significant impact on the environment. I don’t know how to explain it any better.
A moderate amount of swelling that occurs immediately following injury and that is caused by synovial fluid and by blood in the joint is called:
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A moderate amount of swelling that occurs immediately following injury and that is caused by synovial fluid and by blood in the joint is called a hemarthrosis.
What is hemarthrosis?Hemarthrosis, or bleeding into a joint, is a significant contributor to pain and edema in monoarticular joints.
What is synovial fluid?Between the joints is a viscous liquid called synovial fluid. An examination of the synovial fluid looks for conditions that impact the joints.
What synovial fluid do?When you move your joints, the fluid cushions the ends of the bones and lessens friction.
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This family of ATPases is structurally related to the pumps that acidify lysosomes and vesicles; however, they usually function in reverse, generating ATP from ADP and Pi using proton gradients across membranes. What are they called
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This family of ATPases is structurally related to the pumps that acidify lysosomes and vesicles; however, they usually function in reverse, generating ATP from ADP and Pi using proton gradients across membranes is called F-type pumps.
The inner membrane of mitochondria and bacterial plasma membranes both contain F type pumps, which are necessary for the generation of ATP. It is also known as the ATP synthase complex or Complex V. By letting these protons passively return to the matrix, they use the proton gradient created by the flow of electrons to produce ATP.The F1 motor is the ATP turnover motor and,In mammals, the F0 motor, which is in charge of ion translocation, has nine subunits, nine of which are likely centered on the membrane's A, B, and C subunits, along with D, E, F2, F6, G2, and 8 subunits.
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What type of plant undergoes self-fertilization to produce some offspring that are identical to the parent and some that are different
Answers
Hybrid plants
What is self-fertilization between hybrid plants?Pollen from the same plant travels to the ovule or stigma of a flower (in flowering plants) in a process known as self-pollination (in gymnosperms). In autogamy, pollen is transferred from the anther of one flower to the stigma of another flower on the same flowering plant, or from the microsporangium to the ovule within a single (monoecious) gymnosperm. In geitonogamy, pollen is transferred from the anther of one flower to the stigma of another flower on the same flowering plant. Some plants contain defenses against autogamy, like cleistogamy, which prevents flowers from opening, or moving stamens that touch the stigma. When two distinct plant species are self-pollinated and the resulting seed is grown, a hybrid plant is created. A hybrid is the plant that emerges from those two types of seeds. Commercial self-pollination is done to pass on some sort of desirable trait from each original variety to the progeny. The term "selfing," which is frequently used as a synonym, refers to other forms of self-fertilization as well as self-pollination.
I understand that the question you are looking for is this:
What type of plant undergoes self-fertilization to produce some offspring that are identical to the parent and some that are different?
a) true-breeding
b) homozygous
c) hybrid
d) recessive
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how the life functions of a unicelluar oragnism are carried out
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Explain how these tail lengths were inherited by describing the mode of inheritance, indicating how many gene pairs were at work, and designating the genotypes of Harvey, Irma, and their 18- cm -tail offspring. Drag the terms on the left to the appropriate blanks on the right to complete the sentences.
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Here we can see that 7 phenotypes appeared in F2 generation, so the number of genes involved is 3 and alleles is 6. Contribution per allele = 4 cm Base contribution = 6 cm
Genotype of Harvey = aa bb cc Genotype of Erma = AA BB CC
Number of dominant alleles if length is
18 cm = 18-6 / 4 = 12 / 4 = 3.
F1 generation genotype = Aa Bb Cc This clarifies why the length is 18 cm, as there are three dominant alleles.
seven 1. It is likely that there are gene pairs in this cross. There are
categories of phenotypes. The genotypes of the parents would be combinations of alleles that would produce a 6 cm ( aabbcc ) tail and a 30 cm) tail, whereas the 18 cm offspring would have a genotype of AaBbcc.
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The bicarbonate buffer system would not work very well in the human body if not for the action of the respiratory system, which ___________.
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The renal system control [HCO₃⁻] and [H⁺], while the respiratory system controls the CO₂ release. Option 5. the respiratory system expels CO₂ produced by the buffer system.
How the bicarbonate buffer system works?Bicarbonate buffer is a significant key in regulating the organism's blood pH.
Bicarbonate is the conjugate base of carbonic acid.
H⁺ + HCO₃⁻ ⇒ [H₂CO₃]
The carbonic acid is converted into CO₂ and water by carbonic anhidrase
[H₂CO₃] ⇔ CO₂ + H₂O
The lungs and the kidneys are responsible for the pH control in corporal fluids.
Water is absorbed by the system, while the respiratory system releases CO₂, which is neurologically controlled. Physiological mechanisms at a renal level control the concentration of [HCO₃⁻] and [H⁺].Consequently, the blood pH control depends on the relative proportion of added HCO₃⁻ by the kidneys and CO₂ eliminated by the lungs.
H₂CO₃ would have a low buffering capacity in the body if it could not dehydrate to CO₂, a gas expelled from the body with expired air.
The correct option is 5. The bicarbonate buffer system would not work very well in the human body if not for the action of the respiratory system, which expels CO₂ produced by the buffer system.
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The bicarbonate buffer system would not work very well in the human body if not for the action of the respiratory system, which ___________.
supplies the buffer system with CO2.supplies the buffer system with O2.expels HCO3- produced by the buffer system.expels H+ produced by the buffer system.expels CO2 produced by the buffer system.Damaged small blood vessels beneath the skin following blunt trauma causes: A: cyanosis. B: hematoma. C: mottling. D: ecchymosis
Answers
Answer:D:Ecchymosis
Explanation:
When small blood vessels beneath the skin are damaged, blood seeps into the soft tissues. This manifests as a bruise, also referred to as ecchymosis
When a population is small there is an abundance of resources for all individuals, so the per capita resource availability is high, thus leading to more rapid growth rates (as compared to larger populations). Why then are small populations more likely to go extinct compared to large populations
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Answer:
Since there are fewer individuals there is less genetic variation meaning that one disease/disaster and wipe out the whole population
Explanation:
Continental drift states that continents moved ____ to their current location
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Wegener proposed the hypothesis of continental drift, which suggested that continents are in constant motion on the surface of Earth. Over time Pangaea began breaking apart, and the continents slowly moved to their present positions.
What is Continental Drift ?The theory of continental drift is most associated with the scientist Alfred Wegener.
Wegener's continental drift theory introduced the idea of moving continents to geoscience. He proposed that Earth (opens in new tab) must have once been a single supercontinent before breaking up to form several different continents.The four pieces of evidence for the continental drift include continents fitting together like a puzzle, scattering ancient fossils, rocks, mountain ranges, and the old climatic zones' locations.Learn more about Continental Drift here:
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Which of the following year was the term protein first used?
1883
1885
1881
1889
Answers
Answer:
1838 was. the year the term protein was used.
Explanation:
Protein comes from the Greek word proteios, meaning "primary" or "holding the first place." A Dutch chemist Gerard Johann Mulder, coined the word protein in 1838.
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