Bacteriophage is a virus that infects bacteria.
Answer:
Bacteriophage is a virus that infects the bacteria.
Explanation:
Bacteriophages are viruses that can infect the bacteria. They have a hexagonal head and a tail. The head consists of viral DNA. The bacteriophage sits on the bacterial cell and injects the genetic material through its tail into the bacterial body. This process is called transduction. Inside the bacteria, the viral genome replicates and produces new viruses. After some time the lysogenic enzyme present in the virus breaks the bacterial wall and all the viruses emerge out. This ultimately causes the death of the bacteria and newly formed viruses again to go for a search of new bacteria.
Osmosis is best defined as the movement of A) molecules from an area of high concentration to an area of lower concentration. B) molecules from an area of low concentration to an area of higher concentration. C) water molecules across a membrane from an area of low water to an area of higher concentration. D) water molecules across a membrane from an area of high water concentration to an area of lower concentration. E) water molecules inside a container.
I think its A. molecules from an area of high concentration to an area of lower concentration.
Im not completely sure its correct but go for it
Osmosis is a biological process where water molecules move across a membrane from an area of high water concentration to an area of lower concentration. The correct answer to the question is option D.
Explanation:Osmosis is a biological process that involves the movement of water molecules across a semi-permeable membrane. This movement tends to occur from an area of high water concentration to an area of lower water concentration. It's a type of passive transport process in cells. So, considering the options given, the correct choice would be D) Water molecules across a membrane from an area of high water concentration to an area of lower concentration.
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Which location is the source of magma
In the lower part of Earth's crust and in the upper part of the mantle.
The outermost shell of the earth made of the earth's crust and upper part of the mantle, and the asthenosphere, which is the layer below the lithosphere.
HELP!!!! YOU WILL GET 100 POINTS!! 1. What affect does the setting of the Bag-End have on the plot in the beginning of The Hobbit? a. It helps establish the easy, safe lifestyle that Bilbo is used to. b. It shows that Bilbo will not go on the adventure c. It explains why Gandalf thinks Bilbo would be a good burglar d. It reveals the conflict between Thorin and Bilbo. 2. Read the passage closely. The dwarves looked at him with quite a new respect, when he talked about dodging guards, jumping over Gollum, and squeezing through, as if it was not very difficult or alarming. Which team does this passage develop? a. Mercy is sometimes necessary and can lead to good things b. Greed is a powerful force that can be lead to ones downfall c. Girl always overcomes evil d. One is often surprised by misconceptions about others
1. is c and 2. is aHELP!!!! YOU WILL GET 100 POINTS!! 1. What affect does the setting of the Bag-End have on the plot in the beginning of The Hobbit? a. It helps establish the easy, safe lifestyle that Bilbo is used to. b. It shows that Bilbo will not go on the adventure c. It explains why Gandalf thinks Bilbo would be a good burglar d. It reveals the conflict between Thorin and Bilbo. 2. Read the passage closely. The dwarves looked at him with quite a new respect, when he talked about dodging guards, jumping over Gollum, and squeezing through, as if it was not very difficult or alarming. Which team does this passage develop? a. Mercy is sometimes necessary and can lead to good things b. Greed is a powerful force that can be lead to ones downfall c. Girl always overcomes evil d. One is often surprised by misconceptions about others
Answer:
To calculate or compute the magnitude of the velocity at whichever point in time, you’ll need to multiply the constant acceleration pace times the amount of time difference and then adding the result to the initial velocity
While To calculate or compute the horizontal component, the magnitude of the vector will just be multiplied by the cosine angle referenced to the horizontal
Explanation:
_______ are found in BOTH viruses AND in living single-celled organisms, such as protozoans and bacteria.
You could say DNA and RNA but I would use DNA to be more specific
Answer:
DNA and RNA
Explanation:
Nucleic acids (DNA and RNA) are found in both viruses and in living single-celled organisms, such as protozoa and bacteria. They are responsible for heredity and are the basis for building proteins that are essential to the body.
Both are made up of subunits - the nucleotides. Each nucleotide is formed by a 5-carbon sugar (deoxyribose, in DNA and ribose in RNA), a radical of phosphoric acid (phosphate) and a cyclic compound with nitrogen (the nitrogenous base). There are five types of nitrogenous bases: adenine (A), guanine (G), cytosine (C), thymine (T) and uracil (U). These molecules are responsible for the formation of genes.
Friction is the force that one surface exerts on another when they rub together. Friction works in the direction opposite to the motion, causing the object to slow down. What is one way you could reduce the friction between two surfaces?
A.) Carpet the surfaces
B.) Put oil on the surfaces
C.) Put sand on the surfaces
D.) Allow one of the surfaces to rust
Answer is B
It is because I did this and got it right and also oil is a liquid so it will immediately stop whatever is coming.
Putting oil on the surfaces can reduce the friction between two surfaces.
Therefore, option B is correct.
What is friction?The resistance to motion created when two objects rub against one another is called friction. Friction occurs whenever two items come into contact with one another. Friction acts in the opposite direction from the motion and works against it. The two surfaces' respective materials have an impact on how much friction exists.
The force that prevents one solid item from moving across another is known as friction. Static friction, sliding friction, rolling friction, and fluid friction are the four main categories of friction. It is a contact force that acts between two surfaces.
Friction can be reduced by putting oil on the surface. Therefore, option B is correct.
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What is the overall reaction for cellular respiration?
The equation for cellular respiration is as follows:
C6H12O6 + 6O2 --> 6CO2+6H2O + energy
This equation pretty much explains everything. When taking in sugar and oxygen, your products are carbon dioxide, water, and energy,
Hope that answered your question.
What is chromosomes
A chromosome is a Deoxyribonucleic acid molecule with part or all of the genetic material of an organism.
Answer:
Chromosome is the compact form of genetic material(DNA) present in the nucleus of a cell. These chromosomes are a combination of proteins and DNA. These chromosomes carry our hereditary material in the form of genes.
Each chromosomes carry many genes which are transferred to the next generation. Each chromosome divides into the S- phase and they become compact during the mitosis phase.
Chromosomes can be seen under the microscope in the metaphase stage of cell cycle. 23 pairs of chromosomes are present in each cell out of which 22 are autosomes and 23rd is the sex chromosome.
These sex chromosomes is different in both male and female because females have two X chromosomes and male have one X and one Y chromosome as sex chromosome.
Carbon dioxide (CO2) combines with a five-carbon compoundIn one to three sentences, describe what happens during the reduction stage of the Calvin cycle.
We are well aware that there are two stages of photosynthesis:
Light dependent reactions Light independent reactions/ Calvin cycle/ dark reactions.Calvin cycle or light-independent reactions:
This comprise the process during which carbon dioxide enters into the leaves of plants and passes through series of steps to form sugar or food. This process depends on the supply of ATP, (the ATP that is formed previously during light dependent reactions).
Now there are three stages of Calvin cycle:
1) carbon fixation 2) reduction 3) regenerationDuring the process of carbon fixation CO2 combines with a 5-carbon compound called RuBP or ribulose-1,5-bisphosphate which results in the synthesis of a 6-carbon compound that splits up in to 2 three carbon compounds called phosphoglyceric acid (3-PGA).
Here out focus will be the process of Reduction.
Reduction is the second stage of Calvin cycle during which phosphoglyceric acid (3-PGA) is converted to glyceraldehyde-3-phosphate (G3P) that is a sugar. During the process of reduction, energy in the form of ATP and NADPH are used for the conversion of 3-PGA to G3P. As 3-PGA is reduced to G3P, therefore this process is known as reduction.
After reduction, a series of reactions occur that lead to the synthesis of glucose but since focus of our question was reduction, so you can see more details of the process in attached figure.
Hope it helps!
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Which factor can decrease the kinetic energy of an object?
THX
If an object is going uphill it increases it fast.
Which of the following could be a hypothesis for what a rattlesnake eats ?
A. If there are no mice an ecosystem a rattle snakes moves to another ecosystem
B. The remains of mice have been found in the stomach contents of rattlesnakes
C. A rattlesnake eats mice and other small rodents
D. What food sources are available in the snakes habitat
A because a hypothesis takes a form of statement in a "If ______, Then _____." typically. so A should be your answer
If there are no mice an ecosystem a rattle snakes moves to another ecosystem. this could be a hypothesis for what a rattlesnake eats.
How is a hypothesis formed?A hypothesis is a prediction made before an experiment is carried out. If [CAUSE], then [EFFECT], because [RATIONALE], is a popular format.Strong hypotheses in the area of experience optimization are made up of three parts: a problem statement, a proposed solution, and an outcome.here the snake moving to a different habitat is the (EFFECT) because of absence of mice in the environment (CAUSE). hence the RATIONALE is that rattlesnake feeds on the mice.learn more about hypothesis here:
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without redox reactions, NADH cannot unload its electrons and the process of__ will be shut down
A- the Calvin cycle
B- chemiosmosis
C- photosynthesis
D- cellular respiration
Which of the following are books of the minor prophets?
Isaiah
Lamentations
Obadiah
Jeremiah
Ezekiel
Zechariah
Micah
Daniel
Hosea
Malachi
hosea,obadiah,micah,,malachi,zechariah. they are part of the 12 minor
I do not understand I need help in doing the whole thing
What is the general process scientists use to gather information and answer questions
Answer:
Scientists use a general process known as Scientific Inquiry to ask and answer questions about nature.
Explanation:
Scientific inquiry is best defined as a fixed process that follows the steps of question, hypothesis, and investigation, gathering evidence, and communicating results.
This process is the most widely used process by scientists around the world. It involves investing a given subject in a logical way to find evidence that supports the answer.
It is based on measurable evidence to specify the reasoning.
The general process that scientists use to gather information and answer questions is called the scientific method.
The scientific process begins with making observations or noticing something interesting or unusual about the natural world. Observations can be made through direct observation, measurements, or experiments.
Based on the observations made, scientists formulate a specific and testable question, often referred to as a research question or hypothesis. The question should be clear and focused, guiding the subsequent steps of the scientific method.
A hypothesis is a tentative explanation or prediction for the observed phenomenon. It is an educated guess that can be tested through experimentation or further observation. The hypothesis should be specific and falsifiable, meaning it can be proven wrong through evidence.
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What happens to enzyme if the temperature varies too far from the enzyme optimum (or best) temperature
If an enzyme is not used at it's optimal temperature, it's function will likely slow down or not work all together.
which process takes place last in the development of a human being?
Answer:
Neurulation
Explanation:
Neurulation of organogenesis is the last stage of human development. The gastrula stage forms three germ layers called ectoderm, mesoderm, and endoderm. The mesoderm form the notochord. A neural tube is developed from the ectoderm which differentiated into CNS and other nerves.
Apple maggots are a type of fly native to North America. Prior to the introduction of the apple tree to North America, apple maggots fed from and laid their eggs in hawthorn trees. After apple trees were introduced, some apple maggots began feeding from and laying their eggs on apple trees. Adult apple maggots will only mate on the type of tree on which they were born.
What is the most likely consequence of the introduction of apple trees to apple maggots?
A. Some apple maggots will undergo adaptive radiation to colonize many other types of trees besides the apple and hawthorn .
B. Populations of apple maggots that mate on different trees could become reproductively isolated and eventually speciate.
C. Apple maggots that are born on apple trees will be unable to reproduce and will eventually die out.
D. Individual apple maggots will eventually learn to lay eggs on both hawthorn trees and apple trees.
your answer is b hope this helps
The correct answer is option B
The population of maggots on the apple tree (apple maggot) that will mate on different trees could become reproductively isolated due to different habitat (ecological isolation).
Ecological isolation causes speciation by creating reproductive barriers between populations due to different habitats.The maggot populations will mate on different trees and will eventually speciate over a period of time.
what are the two factors that create the difference between the temperate forest biome in the taiga biome
The temperate forest biome covers latitudes ranging approximately from the southern United States to southern Canada, while the taiga biome, also known as boreal forest, extends from the latitude of southern Canada to about 60 degrees north latitude. (see References 1, References 3) Thus, these two biomes are adjacent, which explains the many similarities between taiga and northern temperate forests. Both biomes have four distinct seasons, but the temperate forest climates cover a much wider range of temperatures and precipitation patterns. Taiga, in contrast, is reliably cold: most of the precipitation falls as snow, winters are severe and the growing season is short -- about 130 days compared to 140 to 200 days for temperate forests.
The two factors that create the difference between the temperate forest biome and the taiga biome are as follows:
Temperature.Precipitation. What is a biome?A biome may be characterized as a very large ecosystem that is consistently running in nature in an unmanaged way. In more simple words, it is defined as a very large area that is characterized by a particular type of vegetation. Some examples of biome may include tropical rainforests, coral reefs, grasslands, etc.
Taiga biomes are generally thick forests. Coniferous trees, such as spruce, pine, and fir, are common. These trees have needles instead of broad leaves, and their seeds grow inside protective, woody cones.
While temperate forests have deciduous trees which lose their leaves in winter, conifers never lose their needles. All such differences are created by numerous factors but temperature and precipitation are the most potent ones.
Therefore, temperature and precipitation are the two factors that create the difference between the temperate forest biome and the taiga biome.
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There are economic concerns surrounding the products that have been genetically engineered for particular traits, including pharmaceutical products, crops, and enzymes used in manufacturing processes. What are the proposed economic concerns that affect society? Check all that apply.
A.Prices for genetically engineered products are raised as a result of patents on products.
B. Farmers must spend more money to obtain genetically engineered seeds for desired crops.
C .Consumers must spend more money to purchase genetically engineered products.
D. More land is utilized for genetically engineered crops than for organic crops.
Answer:
Prices for genetically engineered products are raised as a result of patents on products.
Farmers must spend more money to obtain genetically engineered seeds for desired crops.
Consumers must spend more money to purchase genetically engineered products.
More land is utilized for genetically engineered crops than for organic crops.
Explanation:
Economic issues with genetically engineered products include higher prices due to patents, increased costs for farmers to purchase engineered seeds, and higher consumer prices as a result.
Explanation:The economic concerns surrounding genetically engineered products impact various stakeholders from producers to consumers. The potential economic issues include:
A. Prices for genetically engineered products may be raised due to patents, which grant exclusive rights to the patent holder and can restrict competition, leading to higher prices.B. Farmers might have to invest more funds in purchasing genetically engineered seeds, which typically come at a premium price compared to conventional seeds, affecting their overall production costs.C. As a result of higher production costs, consumers might see an increase in prices for genetically engineered products on the market.Concern D does not align with the commonly proposed economic issues related to genetically engineered crops, as there is no clear evidence that more land is used for genetically engineered crops compared to organic crops.
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which of the following statements best describes the major difference between prophase 1 of meiosis and prophase of mitosis
In prophase I, tetrads of homologous chromosomes form and crossing over occurs.
Desceibe homeostasis and why is it important to an organism.
Homeostasis is maintaining a balanced internal condition in the body. Homeostasis is very important because in the wrong body conditions certain processes and proteins will not function properly.
the kidney is an organ that collects wastes and excess water from the blood and sends them to the bladder where they are stored before being removed from the body. which two systems work together to perform this function?
1) immune and respiratory
2) circulatory and excretory
3) skeletal and nervous
4) digestive and circulatory
The two systems that work together to filter blood, remove waste and excess water, and maintain electrolyte balance are the circulatory system and the excretory system. The circulatory system transports blood to the kidneys, where it is filtered, and wastes are excreted as urine by the excretory system.
Explanation:You're correct to identify the kidneys as playing a critical role in waste removal and water regulation. The role of the kidneys is to filter blood, produce urine, and assist in maintaining water and electrolyte balance. The two systems that work together to perform these functions, based on your provided options, are the circulatory system and the excretory system.
The circulatory system is responsible for transporting blood containing metabolic wastes from cells to the kidneys. In the kidneys, more than a million tiny units called nephrons filter this blood. This filtration involves the removal of wastes and the formation of urine. The reabsorption of water, required ions, and useful compounds back into the capillaries that surround the tubules leaves the wastes behind, and this urine is subsequently collected in the bladder. So, the circulatory system and the kidneys (part of the excretory system) work collectively to filter blood, expel wastes, and maintain water and electrolyte balance.
The excretory system includes the kidneys, ureters, urinary bladder, and urethra, and it's responsible for the removal of waste from the body. The kidneys, as part of this system, ensure that undesirable substances and excess water are excreted from the body in the form of urine, which is stored in the bladder before being eliminated from the body through the urethra.
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The circulatory and excretory systems collaborate to help the body expel wastes and maintain water-salt balance. The circulatory system carries nutrient-rich blood to the kidneys, the blood is filtered, and essential substances are reabsorbed back into the bloodstream. The excretory system, specifically the kidneys, separates waste and concentrates it into urine for eventual excretion from the body.
Explanation:The two systems that work together to perform the function of collecting wastes and excess water from the blood and sending them to the bladder are the circulatory and excretory systems. The excretory system, particularly the kidneys, ureters, urinary bladder, and urethra, serve to remove metabolic wastes from the body and maintain water-salt balance through processes of filtration, reabsorption, and secretion carried out by the nephrons.
The circulatory system, on the other hand, delivers nutrient-rich blood to the kidneys, where waste products, excess water, and ions are filtered out and sent into the tubule system of the nephron. Healthy substances are reabsorbed back into the bloodstream, whereas body wastes are separated and concentrated into urine, which is then collected in the bladder for eventual excretion from the body through the urethra.
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In 1957, the Russians launched the first successful orbiting satellite, called Sputnik. Which of these statements best explains why humans should continue to send orbiting satellites to space?
Question 12 options:
1)
They reflect hamful radiations in space.
2)
They provide useful information about space.
3)
They help change weather conditions on Earth.
4)
They stop comets and asteroids from striking Earth.
2 is the only logical answer
Answer:
B. They provide useful information about space.
Explanation:
Explain the difference between rotation and revolution?
Sample Response: Rotation occurs when an object spins about its own axis. Revolution occurs when one object moves around another object.
Which type of organism is responsible for performing the majority of nitrogen fixation..??
A. Humans
B. Aquatic organisms
C. Plants
D. Bacteria
the answer is D. Bacteria
I think the answer is D. Bacteria
Some animals are able to survive long periods without food because they
They usually have a large store of fat.
The introduction of zebra mussels in the Great Lakes is an example of which type of release? The introduction of zebra mussels in the Great Lakes is an example of release.
The introduction of zebra mussels in the Great Lakes is an example of accidental release from ballast water in a foreign container ship.
Answer:
The introduction of zebra mussels in the Great Lakes is an example of an unintentional or accidental release.
Explanation:
The zebra mussel known biologically as Dreissera Polymorph's, is a small freshwater mussel which its species was originally from the lakes in Southern Russia and Ukraine. Known globally as invasive species, they got their name through the striped pattern which are mostly seen on their shells.
Zebra mussels were noticed in Canada in the Great Lakes in 1988 at lake St. Clair. They were believed to be unintentionally released into the lakes in the ballast water of ships going to oceans, traveling the St. Lawrence Seaway. Another belief was linked to the introduction or release through anchors and chains even though this belief has been described as mere speculation.
Does gene therapy modify DNA
Critics of sustainable agriculture claim that its farming methods will result in _________________. A) water pollution B) lower crop yields C) greater water usage D) decrease soil fertility .
Critics of sustainable agricilture claim that its farming methods will result in lower crop yields.
B) lower crop yields is your answer
I hope this helps you!!!!
Answer:
B
Explanation:
Usa test prep
What must occur before cell division
The process when cell divides is refereed to as mitosis.when a cell has copied all its DNA then the cell normally divides.
Before the mitosis occurs the cell has to replicate its DNA making a copy of each chromosome this phase is referred to as inter-phase while the cell division is referred to as mitosis
SUMMARY
A cell has to replicate its DNA making a copy of each chromosome,called sister chromatids
Before cell division occurs, a cell goes through stages of the cell cycle which are the G1 phase (growth and carrying out functions), the S phase (DNA replication), and the G2 phase (further growth and preparation for division). These stages are crucial to ensure that each resulting cell after division has a complete set of genetic material.
Explanation:Before cell division can occur, a cell must pass through several stages. Collectively, these stages are referred to as the cell cycle. The first stage is the G1 phase, where the cell grows and carries out its functions. Next is the S phase, during which DNA replication occurs. Here, the cell makes a copy of its genetic material in preparation for division. This is followed by the G2 phase, where the cell continues to grow and prepares for division. Lastly, the cell enters the M phase, where cell division, specifically mitosis, actually occurs.
The processes that occur before cell division, particularly DNA replication, are crucial because they ensure that each daughter cell will have a complete set of genetic material after the cell divides.
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