Answer:
A theory is a carefully thought-out explanation for observations of the natural world that has been constructed using the scientific method, and which brings together many facts and hypotheses. ... A scientist makes an observation of a natural phenomenon.Explanation:
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What's the question?
I cannot download anything from the internet sorry, so i need the question to be able to answer.
what's the difference between a pathogenic virus and a harmless one?
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Answer:
lol XD
Explanation:
Summarize the lytic cycle. (1 point)
The viral DNA incorporates itself with the host cells and replicates whenever the host cell replicates itself.
A virus copies its genetic material and then splits its cell membranes in half to form identical viruses.
A virus lays eggs on the host cell’s protein coat, which then hatch and move on to infect other cells.
A virus injects its genetic material into the host cell, copies itself, and then forms new viruses that burst out of the host cell.
Answer: A virus injects its genetic material into the host cell, copies itself using the host's structures and resources, and then forms new viruses that burst out of the host cell
The lytic cycle is one of the two main life cycles of viruses, the other being the lysogenic cycle. In the lytic cycle, a virus infects a host cell and hijacks its cellular machinery to replicate and produce new virus particles, or virions.
The correct option is D .
The lytic cycle is rapid and results in the destruction of the host cell. It is often associated with acute infections, where the symptoms of the infection are more severe and appear relatively quickly. Examples of viruses that follow the lytic cycle include the flu virus (influenza), the common cold virus (rhinovirus), and many bacteriophages that infect bacterial cells.
The lysogenic cycle, on the other hand, is characterized by the integration of the viral genetic material into the host cell's genome, allowing the virus to remain dormant for a period before switching to the lytic cycle.
Hence , D is the correct option
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A scientist wants to determine the age of a rock. The rock contains an index fossil and an ancient relative of a living organism. Which is more useful for dating the rock, and why?
Answer: Ancient Relative of a living organism
Explanation: Ancient Relative because by using the index fossil, you are also using the law of superposition. This law does not give you an accurate/specific date but instead the order they are in (i.e me saying i am older than my siblings compared to me saying i am 2 years older than them). By using an ancient relative of a living thing then we can see its phylogenic tree and measure around how old it is. Fossils also hold carbon and chemicals in there bones which allows us to use carbon dating. Carbon dating is an accurate way of measuring age.
The amount of available ______ limits the number of trophic levels in a community.
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3. A strain of cells undergoes a mutation that increases the permeability of the inner
mitochondrial membrane to hydrogen ions.
a) What effect would you expect this mutation to have on the process of cellular
respiration? 12
b) Assuming the mutant cells can survive, how might the metabolic requirements of
these cells differ from those of a non-mutant strain of the same variety? 12
A mutation that involves the permeability of the inner mitochondrial membrane to protons (H+) will affect the amount of ATP. If mutant cells can survive, then they will need more energy to create a suitable gradient.
Cellular respiration is a series of metabolic reactions by which aerobic cells can generate energy in the form of ATP by using the chemical energy stored in the foods.
Cellular respiration can be divided into three sequential stages: glycolysis, the Krebs cycle (also called the acid citric cycle) and oxidative phosphorylation.
During oxidative phosphorylation, the transport of electrons across the inner mitochondrial membrane is coupled to the generation of an electrochemical proton (H+) gradient, which is then used to generate ATP by means of a protein complex known as ATP synthase.
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Describe an approach for understanding global systems and the changes they undergo
IN UR OWN WORDS
ill give brainliest if its in ur own words
50 points :)
Answer
To understand the global systems and the changes they undergo in a better way, we can use a model to represent the various ecological processes that occur within the biosphere. One example of a model that we can use is the earth systems model. It can show the causes and effects of global change to provide us with insights and learning about the global system as a whole.
Explanation:
Answer:
To be able to understand global systems and their changes first we must survey them before and relook at the systems and analyze how they have changed and what caused these changes.
Explanation:
a giant tortoise traveling at 0.3 km/hr would take how many hours to complete a marathon(42km)
140 h
Explanation:
speed =distance/ time
so rearrange the formula
time= distance/ speed
time = 42/0.3
time = 140 h
What are some characteristics of animals in “class”
Please help this is for a project pls help it will mean so much for me
Animals can be classified according to different physical characteristics, such as body covering (e.g., hair, fur, feathers, scales, shells), body shape (e.g., two main features, three main features), appendages (e.g., arms, legs, wings, fins, tails), and method of movement (e.g., walking, crawling, flying, swimming).
What types of information can scientists learn from fossils?
Answer:
Types of information scientists learn from fossils is what it was like back then before we existed, these fossils also tells us our history and we might learn from the history and prevent any disaster that killed that animal or plant from happening to us
Explanation:
Hope this helps!
What is XX and XY? And which are their differences?
Answer:
chromosomes
Explanation:
the diefference is that one is combination of female genes and the other a combination of female with male genes
the global distribution of the diversity of phytoplankton is indicated in the map shown here. which statement best describes the reason for the distribution of different species of phytoplankton as shown here?
PLEASE HELP ME OUT!!
Answer:
A)Light levels and average temperatures are higher at 0 degrees latitud…
Explanation:
got it right on usa testprep :)
How is computer science helping this scientist do her research?
Answer:
Computer and information research scientists invent and design new technology and find new uses for existing technology. They study and solve complex problems in computing for business, science, medicine, and other uses.
Explanation:
Answer:
While following a similar education and career path to that of information systems managers and computer programmers, computer and information research scientists have a specific subset of skills and duties that sets them apart from other computing professionals.
Information research scientists work to advance the field of computing and create new computing-based solutions to problems in countless industries. Their role is as a trailblazer: The development and design of new digital technologies, such as data mining software, is the quintessential duty of a computer research scientist.
Repurposing older technology to work in specific contexts is another frequent activity of a research scientist. They put the “science” into computer science — they research, test, and create, whereas other CS disciplines might focus on information systems management or programming software. Notable historical figures in computing, such as Ada Lovelace and Alan Turing, would be classified as computer and information research scientists today. The advancement of the field is the mission for those in this career.
Due to the broad applicability of computing technology to various fields, computer and information research scientists can be found in almost every industry. From food service to aerospace engineering, nearly every line of work can use these research scientists. As a result, duties for this career can vary greatly.
Many computer research scientists can be found in the field of robotics, where software combines with mechanical hardware to create machines that are more efficient and viable in commercial use. Others might find themselves in the medical field, creating new systems for collating and analyzing patient data. The ubiquity of computing technology means that a typical day for a computer and research scientist is almost impossible to define, and this makes the field quite exciting and dynamic.
There are some common trends that can be defined, however. Computer and information research scientists should expect to become familiar with machine learning and artificial intelligence. This emerging field of computing is perceived as the iconic technology of the future. The demand for computer scientists experienced in machine learning and AI is growing fast. As research scientists, those in this career will be hard-pressed to avoid work that involves AI. Many roles in academic and private settings focused on the research and advancement of artificial intelligence can be found. This field is slowly dominating the focus of many different industries: Automotive, health care, marketing, and even private military companies all have their hands in the world of AI, and that list is growing bigger each day.
The basic idea of the occupation is that information scientists invent new computing technologies in response to various needs. Invention naturally leads to technological advancements in many different lines of work.
Imagine that you are managing a large wildlife preserve that was formerly a cattle ranch. You know from historical accounts that wild sheep used to live there, but they were hunted until the local population was exterminated. After doing some research to determine what might be an appropriate starting population, you introduce them. Food is abundant and they have no natural predators. You then spend several years graphing the number of individuals (on the vertical axis) against the number of generations (on the horizontal axis). By the 10th generation, the population begins to reach carrying capacity.
Requried:
What BEST defines this mathematical model used in population studies?
The mathematical model used in this population study is known as the logistic growth model.
What is logistic growth model?The logistic growth model is a mathematical model that is used to describe the growth of a population over time. It is based on the idea that the growth of a population is limited by resources such as food, habitat, and space, and that as the population grows, the rate of growth begins to slow. This results in a curve that starts out steep and then levels off as the population approaches its carrying capacity, which is the maximum population size that can be sustained in a particular environment.
In the scenario described, the population of wild sheep is introduced to a wildlife preserve where food is abundant and there are no natural predators. This means that the population is able to grow at a relatively fast rate, but as the population increases, it begins to approach the carrying capacity of the preserve. At this point, the rate of growth begins to slow, and the population levels off.
This is reflected in the graph, which shows the population increasing rapidly at first and then leveling off as it reaches carrying capacity. The logistic growth model is often used to understand and predict the growth of populations in a variety of contexts, including agriculture, biology, and economics.
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Help me please!!!!! ASAP!!!
Answer:
Noncyclic photophosphorylation (top) and cyclic photophosphorylation (bottom). These processes are better known as light reactions.
Glycolysis produces 2 ATP molecules, and the Krebs cycle produces 2 more. Electron transport from the molecules of NADH and FADH2 made from glycolysis, the transformation of pyruvate, and the Krebs cycle creates as many as 32 more ATP molecules.
I'm not sure if that'll help you, but yuhhh!
Some midwestern farmland in the United States is covered by
Answer:
dominant crops
Explanation:
ribosomes contain three discrete sites where trnas bind and the polypeptide is synthesized. these are called site (a site), site (p site), and site (e site).
Answer:
Each ribosomal subunit has three binding sites for tRNA: designated the A (aminoacyl) site, which accepts the incoming aminoacylated tRNA; P (peptidyl) site, which holds the tRNA with the nascent peptide chain; and E (exit) site, which holds the
Explanation:
Each ribosomal subunit has three binding sites for tRNA: designated the A (aminoacyl) site, which accepts the incoming aminoacylated tRNA; P (peptidyl) site, which holds the tRNA with the nascent peptide chain; and E (exit) site, which holds the
Beets add minerals to the soil. The greens are very good for the compost.
what types of solute molecules may be moved by facilitated diffiusion
Explanation:
Facilitated diffusion therefore allows polar and charged molecules, such as carbohydrates, amino acids, nucleosides, and ions, to cross the plasma membrane. Two classes of proteins that mediate facilitated diffusion are generally distinguished: carrier proteins and channel proteins.
If a chromosome fragment breaks off and then reattached to the original chromosome, but in the reverse direction, the resultant chromosomal aberration is called:
Answer:
An inversion
Explanation:
An inversion occurs when a chromosome breaks in two places; the resulting piece of DNA is reversed and re-inserted into the chromosome. Genetic material may or may not be lost as a result of the chromosome breaks.
Why is it that cancer does not form every time there is a mistake during the cell cycle?
Answer:
Cells will actually kill themselves through a process called apoptosis, or it will be attacked and killed so it doesn’t spread. For example, when you are exposed to the sun for a long period of time, the solar radiation can mess with your skin cells. That’s why you get sunburned: the cells dry up and fall off. Otherwise, you could get skin cancer
The reason why cancers does not form every time there is a mistake during the cell cycle is explained below:
The following information should be considered:
Cells will actually kill themselves through a process called apoptosis, or it will be attacked and killed so it doesn’t spread. For example, when you are exposed to the sun for a long period of time, the solar radiation can mess with your skin cells. That’s why you get sunburned: the cells dry up and fall off. Otherwise, you could get skin cancerLearn more: brainly.com/question/16911495
Why does Iceland have geothermal energy?
Answer:
Due to the geological location of Iceland (over a rift in continental plates), the high concentration of volcanoes in the area is often an advantage in the generation of geothermal energy, the heating and making of electricity. During winter, pavements near these areas (such as Reykjavík and Akureyri) are heated up.
Explanation:
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Answer:
Due to the geological location of Iceland (over a rift in continental plates), the high concentration of volcanoes in the area is often an advantage in the generation of geothermal energy, the heating and making of electricity. During winter, pavements near these areas (such as Reykjavík and Akureyri) are heated up.
Explanation:
What did people previously believe about the movements of Sun and Earth?
Answer:
They thought of the geocentric theory, or that the earth was the center of the universe
Explanation:
Cortical nephrons have their corpuscles near the _________ edge of the cortex and are the ______ common type of nephron.
Answer: the first is Peripheral and the second blank is more
Which population would most likely survive in a major environmental change?
A. G
B. F
C. H
D. J
Answer:
H
Explanation:
It has the most variation
Hope that helps
Which ion/molecule in the saliva allows you to taste sugar as sweet? A. Hydrogen ions B. Sodium ions C. Glucose D. Alkaloid molecules
Answer:
C. glucose
Explanation:
the presence of energy-rich carbohydrates, such as glucose, which increases the hedonic tone of food and strongly influences our eating behavior.
In three to five sentences, describe the advantages and disadvantages of these maps in modeling mitosis.
In biology, a model can be regarded as representation of the structure and function of biological molecules or maybe an event.
The advantages and disadvantages of these maps in modeling mitosis includes
They depicted the Interphase stages comprising of the G1, S and G2 phases.They also listed the phases involved in mitosis which is also goodThe other image is depicting mitosis too but there is no title and labeling to it which might be confusing.The models should be able to depict the various activities that occurs during mitosis meaning the second model should have contained labeling to indicate the process of mitosis.The first model should have contained pictorial representations to enable better understanding.Learn more about models in biology: https://brainly.com/question/2289444
Answer:
The disadvantages for both cells are that neither is an accurate representation of the cell themselves, or the processes. The first cell doesn't tell us exactly what phases the cell is currently going through, and the cell doesn't go through is phases through grey arrows either. However, it does tell us what the phases look like, and the process of how the cell goes through them. The disadvantages of the second map is that, it doesn't show what the phases look like, the advantages are that tells us what the phases are and what comes before and after them, while showing how this occurs in a cycle and keeps going until senescense.
Explanation: Please give me Brainliest! Thank you!
Which of the following statements does NOT describe a river delta?
A. sediment that builds up where a river meets a larger body of water
B. some are muddy and unstable; others are so big crops can grow on them
C. earth scooped out that can form a lake or deep valley
D.where a flowing river empties its load at the mouth of a river
Answer:
C: Earth scooped out that can form a lake or deep valley
Answer:
letter C po Ang answer
Explanation:
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When cells go through division in the early stages of life, they are known of stem cells. How do
we end up with all the different types of cells?
Answer:
these differentiate as a result of signaling mechanisms. ... The daughter cells divides and after each division it becomes more specialized. When it reaches a mature cell type downstream (for example, becomes a red blood cell) it will no longer divide.
Answer:
stem cells are called upon to generate a particular type of cell, they undergo asymmetric cell division.
Explanation:
with asymmetric division, each of the two resulting daughter cells has it's own unique life course