The DNA in cell extract is responsible for genetic transformation in streptococcus pneumoniae , important evidence should indicate that RNA, polysacchride destroy transforming activity.
What is DNA and what was the transforming principle being talked about here?DNA is the genetic unit of whole genetic complement of the human body.The transforming principle here in the question is talking about is the transforming principle transferred to the mice and the mice died.The transforming principle transferred is DNA that inhibits the transformation of S strain to R strain.And due to the inhibition of this transformation the mice died due to S strain which had a polysacchride coat .Hence the DNA cell extract is responsible for the genetic transformation.To know more about DNA visit:
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The seafloor has some valuable minerals. Manganese nodules containing manganese, iron, copper, nickel, phosphate, and cobalt may be as small as a pea or as large as a basketball. Estimates are that there may be as much as 500 billion tons of nodules on the seafloor. The minerals in manganese nodules have many uses in the industrial world, but currently they are not being mined.
Why do you think these seafloor resources are not being mined? (Please write a complete sentence or two)
giving 50 points!
The ocean floor is home to a very large number of aquatic life which would be destroyed when we mine manganese nodules from the ocean floor.
What is the sea floor?Deep down in the ocean we have the sea floor which is the region that has a lot of organisms that tend to fasten to the rocks that are found beneath the sea. Organisms are all interconnected and these deep sea dwellers also a role to play in the sustenance of the entire aquatic habitat thus the area where they live must be preserved from damage.
Owing to the fact that the ecosystem does sustain itself, we have to look at the broader picture of the things that these organisms have to contribute to the overall maintenance of the sea ecosystem. For instance, the decomposers are found among these deep sea dwellers..
If we mine the minerals from the deep sea, we would destroy the ecosystem and the habitat at the bottom of the ocean or sea.
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GIVING BRAINIEST FOR CORRECT ANSWER
In which two ways do plant cells use the sugar made in photosynthesis ?
• to produce phosphate groups
• to store inorganic matter
• to supply the plant with energy for life
• to make other types of organic molecules
The two ways in which plant cells use the sugar made in photosynthesis are to supply the plant with energy for life and to make other types of organic molecules. The correct options are c and d.
What is photosynthesis?Photosynthesis is a method that plants and other lifeforms use to transform light energy into chemical energy that can then be released to fuel the organism's activities via cellular respiration.
Plants use their leaves to trap light energy during photosynthesis. Plants use the sun's energy to convert water and carbon dioxide into glucose, a sugar.
Plants use glucose for energy and to make other substances such as cellulose and starch. Cellulose is used to construct cell walls.
Thus, c and d are the correct options.
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3. The pH of stomach acid is 2, why is this both good, but possibly destructive to our bodies?
Scientists agree that the term biodiversity describes the number and kinds of species in a location on Earth. Scientists have also identified alternate measures of biodiversity, some of which are important for planning how to preserve biodiversity including genetic biodiversity as well as ecosystem biodiversity. Because all life is interconnected and because the biosphere exerts such an influence on our man's presence on Earth, it is so very important that biodiversity be preserved.
All the true statements are:
Undisturbed wild areas are important for all human recreation activities.Many plants produce secondary plant compounds that are used as medicines.Antibiotics are derived from bacteria and fungi.Maintaining the genetic biodiversity of wild species of our crops that are related to domesticated species ensures our continued food supply. Options A, C, D, and FThis is further explained below.
What is biodiversity?Generally, The range of living things, including plants, animals, fungi, and even microscopic creatures like bacteria, that are found in a certain place is referred to as that region's biodiversity.
In conclusion, Biodiversity is an essential component of our natural world.
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CQ
Scientists agree that the term biodiversity describes the number and kinds of species in a location on Earth. Scientists have also identified alternate measures of biodiversity, some of which are important for planning how to preserve biodiversity including genetic biodiversity as well as ecosystem biodiversity. Because all life is interconnected and because the biosphere exerts such an influence on our man's presence on Earth, it is so very important that biodiversity be preserved.
Why is biodiversity important to man? Check all the statements that are true.
A) Maintaining genetic biodiversity of wild species of our crops that are related to domesticated species ensures our continued food supply.
B) Most aesthetically pleasing landscapes are poor in the diversity of habitats and species.
C)Antibiotics are derived from bacteria and fungi.
D)Many plants produce secondary plant compounds that are used as medicines.
E)The ability to create new crop varieties relies on the unique properties of just one particular plant rather than a genetic diversity.
F)Undisturbed wild areas are important for all human recreation activities.
What is a difference between systemic and pulmonary circulation?
A.
Systemic circulation carries oxygenated blood to the body and pulmonary circulation carries deoxygenated blood to the lungs.
B.
Systemic circulation carries deoxygenated blood to the body and pulmonary circulation carries oxygenated blood to the lungs.
C.
Systemic circulation carries deoxygenated blood to the lungs and pulmonary circulation carries oxygenated blood to the body.
D.
Systemic circulation carries oxygenated blood to the lungs and pulmonary circulation carries deoxygenated blood to the body.
A common psychological effect of alcohol intake is
Anxiety
Enhanced memory
Reduced inhibition
Psychosis
Answer: Reduced inhibition
Explanation: Its not the others, not A, definitely not B, and not D. C is correct because it means you're less self-conscious.
Reduced Inhibition is a frequent psychological consequence of alcohol use. This is because drinking alcohol has an impact on the prefrontal cortex, a part of the brain that controls impulses, planning, and decision-making.
What is people's inclination towards ?People are more inclined to act impulsively and take risks when this part of their brain is damaged. Because of this, people may have decreased inhibitions and may act and make decisions that they wouldn't ordinarily make while sober.
Anxiety can also be caused by alcohol. This is so because alcohol is a depressant and can lead to depressive and gloomy moods. Alcohol's depressive effects can often make individuals feel worried and overburdened.
This could make you feel anxious, scared, or panicked. In conclusion, alcohol result in psychosis. This is due to the fact that alcohol usage can alter the chemical makeup of the brain, which can result in hallucinations, delusions, and other psychotic symptoms.
Alcohol may also make individuals paranoid and make it difficult for them to discriminate between their own ideas and experiences and reality. This can result in psychosis, a serious mental illness.
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One of your classmates became hot and removed a sweatshirt. You advised against this due to what you learned in the study of the scientific method.
Explain why the lab partner would not want the sweatshirt removed.
sweatshirt would not be removed in the lab because Protection of the skin and personal clothing from small chemical splashes and incidental contact.
Why are white coats now worn by everyone?In order to set themselves apart from dishonest healthcare providers who tried to peddle miracle cures and did not follow conventional, evidence-based medicine, trained surgeons and physicians started wearing white lab coats in the late 1800s. Physicians soon followed suit.
A sweat shirt will serve as a detachable barrier in the event of a spill or splash involving dangerous materials. Stops and restricts the spread of contamination outside of a sterile environment.
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Although it typically does not result in significant problems, skin infections can occasionally happen. On your skin, your body naturally creates yeast, and that yeast loves wet, sweaty clothing. Due to a buildup of yeast, wearing the same workout clothing repeatedly without washing them might cause skin irritation.
Can Wearing a sweaty Shirt Make you Sick?No, being outside in the cold, feeling cold, or wearing wet clothes doesn't make you more likely to get the flu or a cold. This is one of the beliefs that actually exist concerning both the common cold and the flu, but numerous studies have shown that this is untrue. Chafing can occur anyplace on your body where there is frequent friction. Although it typically results in a red rash, it can also cause edema and bleeding. Even if you're just walking around after your workout at the gym, wearing workout clothing saturated in sweat is a horrible formula for chafing.Wet clothing can remove a lot of body heat from the body due to the high specific heat of water.
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in an animal cell, centrosomes resemble what part of a city?
Answer: A centrosome is a cellular structure involved in the process of cell division.
Missing: n city?
Explanation:
control measures for forest fires/ how do we prevent forest fires/ Preventive measures for forest fires?
We can prevent forest fires accomplished by constructing firebreaks in the form of tiny clearings or ditches in the forest.
There are several reasons why controlled burns are started. A planned burn can help stop a devastating wildfire by clearing a forest of dead leaves, tree limbs, and other debris. In addition to eliminating exotic species, controlled fires can lower insect populations. Fire also has a revitalizing effect. Typically, a fire will only continue to grow if there is a steady supply of fuel (dry vegetation) along its path. Because of this, the best strategy to contain a forest fire is to stop it from spreading.
Understanding wildfire threats caused by natural sources is essential for wildfire prevention. Foresters should take into account present and impending weather conditions and their hazard to forests while planning routine activities and considering how to stop a wildfire from developing. When it's too hot or windy, sparks from cars or equipment may ignite dry grass or leaves and spread over wide areas because of the wind, starting wildfires.
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5. In a scientific investigation, a scientist is testing to see
the effect of light intensity (strength of the light) on
plant growth. During her investigation, the scientist
ensures that all subject plants get the same amount of
water, are planted in the same type of soil and placed
in a lab room at the same temperature. Each of these
factors are an example of a
A) control group
B) experimental group
C) control variable
D) independent variable
Answer: C control variable
Explanation: I say control variable because it is what is being kept the same during the investigation. It is not of primary concern in the experimental outcome because it is all kept the same in each of the subject plants.
:)
(THIS IS WHAT I THINK!!!)
gametes are blank cells
diploids
haploids
a volcano explodes and kills all but ten members of a population of primates. these ten continue to reproduce, but the allele frequency is now different from that of the original population. this is an example of , which is due to sampling error.
Some volcanic eruptions are explosive and others are not. The explosivity of an eruption depends at the composition of the magma.
If magma is thin and runny, gases can break out easily from it. whilst this type of magma erupts, it flows out of the volcano.
A very good example is the eruptions at Hawaii’s volcanoes. Lava flows hardly ever kill people because they pass slowly enough for people to get out of their way.
If magma is thick and sticky, gases can't escape easily. pressure builds up till the gases get away volcanoes and eruptions. an excellent instance is the eruption of Washington’s Mount St. Helens. on this form of eruption, the magma blasts into the air and breaks apart into portions referred to as eruptions
Tephra can range in length from tiny debris of ash to residence-length boulders.
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A dramatization of one part of Thomas Putnam’s backstory that has a beginning,
middle and end.
Putnam and Francis Nurse, another well-known resident of Salem, had a protracted property dispute, according to the play's opening scene. We discover that “this quarrel rose to the proportions of a fight.”
What is the behavior of Thomas Putnam’s?Thomas Putnam, a rapacious man, exhorts Reverend Paris to be courageous and confront the witches present in their midst. He accuses those whose property he wants to own of using his daughter.
Miller and the majority of historians thought that these kinds of avaricious, self-centered goals were the root of many of the charges of witchcraft.
Therefore, A dramatization of one part of Thomas Putnam’s backstory that has a beginning, middle and end.
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what is the main function of the tata-binding protein? choose one: a. to inhibit transcription until transcriptional activators bind b. to promote initiation of transcription c. to help initiate dna replication d. to inhibit dna replication until s phase
The TBP gene codes for the production of a protein known as the TATA box binding protein. This protein is found in cells and tissues all over the body and plays an important role in regulating the activity of most genes.
TATA-binding protein is an RNA polymerase II subunit that aids in transcription initiation. When the TATA-binding protein binds to the TATA sequence in DNA, the DNA helix bends. TATA box-binding protein (TBP) is responsible for nucleating transcription initiation machinery assembly in eukaryotes. We show that a TFIID complex containing TBP is required for transcription even at promoters lacking a TATA box. The enzyme RNA polymerase is in charge of unwinding the two strands of DNA.
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What percentage of offspring will carry the dominant trait?
25%
75%
100%
50%
0%
Answer:
100%
Explanation:
If you take a look at the Punnett Square, all offsprings carry the dominant trait (denoted by the capital A). Since all squares carry the dominant trait, there is a 100% carry of the dominant trait in the offsprings.
[tex]\left[\begin{array}{ccc}&A&a\\A&AA&Aa\\A&AA&Aa\end{array}\right][/tex]
~
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what molecule or molecules other than the mrna, if any, are present at the e site or would have just left the e site? give the type and number of any other molecules
Molecules other than the mrna present at the e site are trna molecules have just left the e site.
small rna molecule transfer rna, often known as trna, is essential for the production of proteins. The messenger RNA (mRNA) molecule and the expanding chain of amino acids that make up a protein are connected by transfer RNA, which is also known as an adapter. every time an amino acid is added to the chain, a particular trna mates with the corresponding sequence on the mrna molecule to make sure the correct amino acid is added to the protein being created. every time an amino acid is added to the chain, a particular trna mates with the corresponding sequence on the mrna molecule to make sure the correct amino acid is added to the protein being created.
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2. Explore how the different molecules interact with visible and infrared light. Do you find any patterns?
Greenhouse gases are the gases which interact with the visible and infrared light by absorbing the radiation which results into vibration of molecules and thus production of heat.
What are greenhouse gases?Greenhouse gases are carbon dioxide, methane, chlorofluorocarbons, nitrous oxides, and water vapor. Carbon dioxide has shown a warming effect helps to stabilize the atmosphere of Earth.
Molecules of carbon dioxide can absorb energy from infrared radiations from a photon. The energy from the absorption of photon causes the carbon dioxide molecule to vibrate.
When the molecules absorb infrared radiation there is an occurrence of transitions from a ground vibrational state to an excited vibrational state which causes gain of energy which is released later in the form of heat energy.
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In the periodic table ,helium,neon,and argon are commonly called noble gases because they;
State two (2) human activities that alter the water cycle and explain HOW they affect this cycle.
By building dams to store water and by taking water for domestic, commercial, and agricultural uses, humans actively alter the dynamics of the water cycle.
What human activities affecting water cycle?There is a lot of evidence to suggest that human activity is the cause of local and global water cycle disturbances and alterations.
The damming of rivers for hydroelectricity, the use of water for farming, the clearing of forests, and the burning of fossil fuels are just a few human activities that can have an impact on the water cycle.
Therefore, human activities that alter the water cycle.
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hydrogen is what gumdrop color
Answer:
red
Explanation:
during bacterial cell division, the single cell is separated into two cells by… nucleosomes. spindle fibers. aneuploidy. centrosomes. pinching of the plasma membrane.
During bacterial cell division, the single cell is separated into two cells by pinching of the plasma membrane.
A bacterial cell divides by a process of mitosis referred to as binary fission. In the process. the components of the bacterial cell replicated themselves.
In the end, the cell membrane pinches from the center in order to make two new daughter cells. This pinching of the plasma membrane allows equal distribution of components in the two daughter cells.
As binary fission is a mitotic cell division, the daughter cells produced are exactly similar to the parent cell and have the same genetic material.
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How can you tell by looking at the magnetic field lines where
the field is the strongest?
Answer:
The density of field lines indicates the strength of the field.
Explanation:
Which is NOT a class in the Phylum Annelida?
A. Class Hexactinellida
B. Class Hirudinea
C. Class Polychaeta
D. Class Oligochaeta
Hexactinellida is not a class in the phyllum annelida , Hirudinea, polychaeta and oligochaeta are the classes of phylum annelida.
What is annelida and what are its classes?Annelida is the phylum of the animal world which includes segmented animals like worm, leeches, and many more.Annelida group is characterized by the presence of body cavity or coelom.Annelids have organ system level of organization and they respire through body surface.Annelida is the phylum Hirudinea, polychaeta, and oligochaeta , and hexactinellida is not a class of phylum annelida.Further annelida also have well developed circulatory and digestive system.To know more about annelida visit:
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Which of the following examples illustrates an energy transfer between the atmosphere and hydrosphere?
A.
convection currents in the ocean mixing warmer and cooler water together
B.
plant roots absorbing water from the soil
C.
loss of heat from a geothermal vent to the surrounding cooler water
D.
polar ice reflecting the Sun's light back toward space
There are three layers called atmosphere, hydrosphere, and biosphere. The atmosphere is a layer of air. Polar ice reflecting the Sun's light toward space.
What are the atmosphere and hydrosphere?There are three layers called atmosphere, hydrosphere, and biosphere. The atmosphere is a layer of air. The hydrosphere is the layer of water. The biosphere is a layer of living organisms.
Polar ice reflects the sunlight. Polar ice will get melts when it will receive sunlight. Atmosphere is the layer around the earth made up of air. Hydrosphere is the layer of water only.
Therefore, There are three layers called atmosphere, hydrosphere, and biosphere. The atmosphere is a layer of air. Polar ice reflecting the Sun's light toward space.
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We observe that an emission feature in a star is shifted by 2 nm from its actual emission at 450 nm. How fast is this star moving with respect to us? Put answer in units of km/sec but don't enter units. Round to the nearest hundredths place
We see a star's emission feature is 2 nm off from its actual emission at 450 nm. This star is traveling at a speed of 0.675×[tex]10^{8}[/tex] km/s relative to us.
As we define velocity as, v= Δh/h×C
Here c is the speed of light and the value of C is 3×[tex]10^{8}[/tex] m/sec.
(450× 3×[tex]10^{8}[/tex])/2
0.675 ×[tex]10^{8}[/tex]
Hence the rate of moving stare is 0.675 ×[tex]10^{8}[/tex] Km/s. and effect is known as the Doppler effect.
What is Doppler effect?It is the result of a moving wave source that causes its upward shift in frequency for viewers as the source moves toward them and a drop shift in frequencies as the source moves away from them. used to determine if an object in space is traveling away from or toward us.
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in order to use amino acids to make glucose, fat, or atp, the nitrogen has to be removed first. what is that process called, and where does it occur? deamination, occurs in the stomach denaturation, occurs in the liver and kidneys deamination, occurs in the liver and kidneys denaturation, occurs in the stomach
Answer:
deamination, occurs in the liver and kidneys
Explanation:
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Taxol is an anticancer drug extracted from the pacific yew tree that binds to microtubules and prevents their depolymerization. Which phase of mitosis or cell division would be inhibited by treatment with taxol?.
The phase of mitosis that would be inhibited by treatment with Taxol is: metaphase.
Mitosis is the process of cell division that divides the cell into two daughter cells without affecting the genetic composition of the cells. Hence it is an equational division where the ploidy of the cells is not affected. Mitosis is accomplished in following four phases: prophase, metaphase, anaphase and telophase.
Metaphase is the second phase of mitosis where the chromosomes align at the center or the equator of the cell. This is also called the metaphasic plate. The chromosomes are also attached to the spindle fibers, which then pull them apart in the next phase which is anaphase.
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Taxol is an anticancer drug extracted from the pacific yew tree that binds to microtubules and prevents their depolymerization. Which phase of mitosis or cell division would be inhibited by treatment with taxol?.
The actual mechanism of taxol is the disruption of microtubule shortening, which occurs during anaphase as the sister chromatids are pulled to opposite poles.
The division of the duplicated genetic material contained in a parent cell's nucleus into two identical daughter cells occurs during the fourth stage of mitosis, known as anaphase. The replicated chromosomes, known as sister chromatids, are aligned on the equatorial plane of the cell just prior to the onset of anaphase. Sister chromatids are made up of two identical DNA copies linked together at a location known as the centromere.
Every chromosomal pair splits into two identical, independent chromosomes during anaphase. The mitotic spindle, a component of the cell, divides the chromosomes. A chromosome is connected to one end of the mitotic spindle, which is made up of several long proteins called microtubules, and a cell pole to the other.
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Which term describes the rearranging of genetic material between nonhomologous chromosomes without a net loss or gain of genetic material?.
Translocation is the term that describes the rearrangement of genetic material between non-homologous chromosomes without a net loss or gain of genetic material.
Chromosome translocation is an abnormality of the chromosome that results from the rearranging of pieces on non-homologous chromosomes. When chromosomes break during meiosis and the resultant fragment is linked to another chromosome, translocations take place. It does not undergo any net loss or gain of genetic material during the process.
The exchanged sections are referred to as "translocated segments," and the reorganized chromosome is referred to as a "derivative." The translocation is balanced (i.e., neither gains nor losses of genetic material occur) and typically leads to normal development as long as there is no genetic material loss. Rarely, the breaks disconnect a gene from its regulatory element or occur within a gene, which may subsequently result in a phenotype.
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When some bacteria use lactose as a source of energy, they produce propionic acid and carbon dioxide. What is the name for this process?.
Fermentation is the process when some bacteria use lactose as a source of energy, they produce propionic acid and carbon dioxide.
What is fermentation?
Wine, beer, yogurt, and other goods are made through the process of fermentation. The chemical process that takes place during fermentation is seen below. A carbohydrate, such as starch or sugar, is transformed into an alcohol or an acid during the metabolic process of fermentation.
How is cellular respiration triggered by fermentation?Glycolysis is the starting point of any type of cellular respiration, and the final byproduct is pyruvic acid, a 3-C molecule. Fermentation is one of two main methods by which various cells deal with this pyruvate. Let's take a close look at anaerobic respiration, kinds of fermentation, and so forth.
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