The phenomenon where one species diverges into many by occupying a different habitats within a region is called Speciation.
This process can occur in a variety of ways, with one of the most common being through the process of geographic speciation. Geographical speciation occurs when one species becomes divided by geographic barriers and occupies different habitats within a region.
This process creates separate populations of the species, which can then evolve independently from each other and become increasingly distinct from each other over time. When this occurs, the species that has diverged is said to have undergone speciation.
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Which substances compose the backbone of DNA? sugars and lipids phosphates and amino acids sugars and phosphates lipids and proteins
You notice that two species of plant grow at different distances from a river. This is an example of a(n):
The answer is “ecological adaptation”. Ecological adaptation refers to the procedure by which an organism grows and develops in response to the surrounding environment.
Different species of plants are found at different distances from the river. This is because they have adapted to their surroundings. They grow at a particular distance from the riverbank based on their ecological adaptations. The plant species growing near the river will require more water than the plants that grow further away. They will have developed specific traits that allow them to acquire the necessary resources for their growth and development.
They may have long roots that penetrate deeper into the soil to access more water. In addition, the plants that grow closer to the riverbanks have a higher chance of being washed away by the water flow. To cope up with this, they may have evolved specialized leaves or stem that make them more resistant to water currents. Therefore, the variation in plant species distribution at different distances from the river bank is an example of ecological adaptation.
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The study and manipulation of DNA on a molecular level is known as
A biochemistry.
B genomes.
C molecular genetics.
D evolution.
Answer:
It is known as molecular genetics
Answer:
C. The study and manipulation of DNA on a molecular level is known as molecular genetics..
Why is our central dogma the most important piece to our functionality in life?
Answer:
The central dogma of molecular biology describes the flow of genetic information in cells from DNA to messenger RNA (mRNA) to protein. Because the information stored in DNA is so central to cellular function, the cell keeps the DNA protected and copies it in the form of RNA.
Explanation:
The central dogma of molecular biology states that DNA contains instructions for making a protein, which are copied by RNA. RNA then uses the instructions to make a protein. In short: DNA → RNA → Protein, or DNA to RNA to Protein.
2 points
What makes a water molecule polar?*
0 it has neutrons
oxygen has a stronger attraction for electrons than hydrogen
hydrogen has a greater pull on protons than oxygen
0 it has 3 atoms
Answer:
hydrogen has a greater pull on proteins than oxygen
Explanation:
Protons have positive electricity, electrons have negative electricity, and neutrons have no electricity
stock refers to inventory that is held in addition to cycle stock to guard against uncertainty in demand and/or lead time. a. base b. pipeline c. speculative d. buffer
Answer:
D. Buffer
Explanation:
Buffer stock refers to inventory that is held in addition to cycle stock to guard against uncertainty in demand and/or lead time.
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bacteria are advantageous as well as disadvantageous. why
Answer:
ADVANTAGES:
Bacteria are involved in production of many food products such as yogurt, cheese, pickles, etc.
Bacteria break down waste material so that our environment is not permanently cluttered with garbage, dead bodies, etc.
Bacteria are responsible for the production of important essential compounds that are necessary for life such as vitamin K production by E. coli in the gut
DISADVANTAGES:
Some bacteria cause infections or produce toxic substances that are a threat to life and/or health.
Bacteria cause spoiling of food so that it does not keep as long as we may desire.
Some bacteria may cause infections of plants, threatening our food supply or ornamental plant.
Which of the following geological features could form when two plates collide?
A. Trench
B. Mid-Ocean Ridge
C. Transform fault
D. Delta
Answer:
trench
Explanation:
Trenches are geological features formed by convergent boundaries. When two tectonic plates converge, the heavier plate is forced downward, creating a subduction zone. This process results in the formation of a trench. The Marianas Trench is an example of a trench formed by the convergence of two oceanic plates. The deepest part of this trench, called the Challenger Deep, is over 36,000 feet deep, deeper than Mount Everest is tall.
The material that is common to the cell walls of plants and algae
Cellulose.
Cell walls are composed of cellulose.
What are the things that the bird loves?
Answer:
The different types of foods most birds naturally eat include insects (worms, grubs, and mosquitos), plant material (seeds, grasses, flowers), small berries or fruit, and nuts. Larger birds like hawks and vultures may also eat small animals like rodents and snakes.
Write an essay describing your chosen genetic disorder. Include information about the genetic mutation that cause the disorder the effects and symptoms of the mutation how it is acquired and how common it is
A genetic disease is a condition that, entirely or in part, results from a change in the usual DNA sequence.
Sickle cell anemia is one of the inherited illnesses. The structure of red blood cells, which carry oxygen to every part of the body, is impacted.Typically rounded and flexible, red blood cells may flow through blood veins with ease. Sickle cell anemia is characterized by red blood cells having crescent-shaped or sickle-shaped hemoglobin. These sickle cells also form a tough, sticky covering that may slow or prevent blood flow. Cause: A mutation in both copies of the hemoglobin-Beta gene (HBB) gene on chromosome 11 results in the hereditary illness sickle cell disease (SCD). An element of hemoglobin, the protein in red blood cells that carries oxygen, is encoded by this gene. Because of the mutation, hemoglobin molecules clump together to form red blood cells with a sickle shape.Symptoms: Anemia, Periodic episodes of extreme pain, Swelling of hands and feet, Frequent infections, Delayed growth or puberty and Vision problems.You receive 1 set each from your father and mother as inheritance. A kid must receive a copy of the sickle cell gene from both of its parents in order to be born with sickle cell disease. This often occurs when both parents have the sickle cell trait, commonly known as being "carriers" of the sickle cell gene.Learn more about the Genetic disorder with the help of the given link:
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What 5 conditions need to be met for a population to be genetic equilibrium
In order to meet a genetic equilbrium, a population should:
1. Have no changes in the DNA sequence.
2. Be a very large population.
3. Perform random mating.
4. Have no migration movements taking place.
5. Have no natural selection occuring.
When did agriculture begin in Britain? What factors influenced the timing and location of where agriculture began in Britain?
Answer:
Explanation:
The British Agricultural Revolution describes a period of agricultural development in Great Britain from the 18th to the mid-19th century, during which there was a very high increase in agricultural productivity, yield and total production. These events caused an unprecedented population increase, freeing a significant percentage of the population from the countryside, which constituted the labor force of the Industrial Revolution.
The process through which the Agricultural Revolution developed does not seem very clear. The following basic factors are cited in this process:
The fencing of the cultivated fields.
Technical advances and mechanization
Appearance of iron plows
Use of seeders
New ways of drainage
Crop rotation
The improvement in livestock selection.
The selection of seeds.
New forms of economic organization of farms
Improvements in poultry guano fertilization methods.
What is an example of something that increased tax revenue could pay for ?
Answer:
Increased tax revenue could pay for more government-provided services. This includes things like Social Security, Medicare, food stamps for the poor, infrastructure, etc.
Basically, an increase in tax revenue can raise money for the government to pay for more things that benefit the American people as a whole
Explanation:
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How do cells conserve genetic information and still increase genetic variability?
12) One section from one tetrad will change places with a section of another tetrad,
this process is called
For a neuron with an initial membrane potential at -70 mV, an increase in the movement of potassium ions out of that neuron's cytoplasm would result in the
The potassium ions are positively charged(cations) if the charge is -70mV the outflow of cations will cause a decrease in the potential. The potential will become lower than -70mV.
The given condition of an increase in the movement of potassium ions out of that neuron's cytoplasm would result in the hyperpolarization of the neuron.
Hyperpolarization is a change in a cell's membrane potential becomes more negative at a particular spot on the neuron's membrane
A hyperpolarization is an event or stage that takes place when some potassium channels remain open and sodium channels reset.The sodium-potassium pump keeps the concentrations of Na+ and K+ at constant disequilibrium to set the membrane potential of neurons.Increased potassium movement leads to more potassium ions out of that neuron's cytoplasm. It can be seen as a slight dip following the spike.Thus, the correct answer would be the hyperpolarization of the neuron.
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If a fish possesses the ability to produce copious amounts of urine and the ability to move ions via active transport across the gills, what would be the expected habitat of the fish? Multiple Choice a. The fish would survive equally well in fresh and salt water. b. These traits are in opposition to each other and would not be possessed by one fish. c. Fresh water d. Salt water
The expected habitat of a fish that possesses the ability to produce copious amounts of urine and the ability to move ions via active transport across the gills would be c. Fresh water.
Freshwater fish must produce a significant amount of urine to maintain their internal salt levels as the salt concentration in their external environment is lower than in their internal environment.
This excess urine production helps them excrete excess water and retain the necessary salts for survival. An important adaptation for freshwater fish is the ability to transport ions actively across their gills. This ability allows them to take up salts actively from the water and maintain their internal salt levels.
If freshwater fish were unable to transport ions actively across their gills, they would be unable to regulate their internal salt levels effectively and would be at risk of dying.
In summary, the ability to produce large amounts of urine and actively transport ions across their gills are essential adaptations for freshwater fish to regulate their internal salt levels effectively and survive in their environment.
Therefore, the expected habitat of a fish with these traits would be fresh water.
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Fossil fuels such as gas, oil, and coal have what kind of energy?.
Answer:
chemical energy
Explanation:
The energy conversion goes from chemical energy stored in the fuels, to heat energy as it burns which is converted to kinetic energy as it drives large turbines and finally this is converted to electrical energy. The problem with burning fossil fuels is their effect on the environment.
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What is the major reason cells cannot grow too large?
Answer:
the larger a cell becomes,the more demands the
cell place on its DNA.In addition,the cell has more trouble to moving enough nutrition and wastes across the cell membrane
Explanation:
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The author developed this piece using a problem-solution organization. What piece of text evidence supports why the author chose this text organization?
The use of a problem-solution organization helps the author to present a clear and logical argument. It guides the reader through the thought process of the author and helps them to understand the problem and potential solutions.
One piece of text evidence that supports why the author chose a problem-solution organization is when they introduced the problem at the beginning of the piece. The author presented the problem in a clear and concise manner, stating the issue that needs to be resolved. This helps the reader understand the gravity of the problem and the urgency to find a solution.
Furthermore, the author provided possible solutions to the problem and discussed the advantages and disadvantages of each solution. They also provided evidence and examples to support their arguments. This shows that the author carefully thought through the problem and possible solutions and wanted to provide the reader with a comprehensive understanding of the situation.
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When plasma Ca concentration decreases... 1. Parathyroid hormone level increases 2. Parathyroid hormone level decreases 3. Ca and phosphate reabsorption increases 4. Ca and phosphate reabsorption decreases 5. Ca reabsorption decreases and phosphate reabsorption increases 6. Ca reabsorption increases and phosphate reabsorption decreases
Answer:
2. Parathyroid hormone level decreases
4. Ca and phosphate reabsorption decreases
Explanation:
When plasma Ca concentration decreases, the action of Parathyroid hormone level decreases which leads to Calcium and phosphate reabsorption decreases. Parathyroid hormone is responsible for the increase of calcium and phosphorus in the blood when there is low level in the blood so when the re is huge amount of calcium and phosphorus in the blood, the Parathyroid hormone activity decreases which decrease the reabsorption of calcium and phosphorus decreases.
A human eats a meal and afterward their blood glucose levels rise. Explain how the human body responds to return their blood glucose level to normal.
Answer:
Explanation:
The bloodstream carries glucose-a type of sugar produced from the digestion of carbohydrates and other foods-to provide energy to cells throughout the body. Unused glucose is stored mainly in the liver as glycogen.
Insulin , glucagon, and other hormone levels rise and fall to keep blood sugar in a normal range. Too little or too much of these hormones can cause blood sugar levels to fall too low (hypoglycemia) or rise too high (hyperglycemia).
Normally, blood glucose levels increase after you eat a meal. When blood sugar rises, cells in the pancreas release insulin, causing the body to absorb glucose from the blood and lowering the blood sugar level to normal. When blood sugar drops too low, the level of insulin declines and other cells in the pancreas release glucagon, which causes the liver to turn stored glycogen back into glucose and release it into the blood. This brings blood sugar levels back up to normal
Human beings are responsible for the conservation of the environment. Justify
the statement.
Answer:
because of the following ways
Explanation:
1)because they protect plants
2)because they protect animals
3)because they are starting to use less vehicles
4)because they lessened the use of industrial vehicles
which of these is the smallest unit upon which natural selection directly acts?A. an individuals genomeB. silent mutationsC. a population's gene frequencyD. an individuals phenotype
Option D is Correct. The lowest unit on which natural selection directly works is the phenotypic of an individual. These beneficial characteristics spread more widely across the population throughout time.
A natural collection of organisms that interbreed and are members of the same species that live in the same geographic region is referred to as a population. Populations are the smallest units that can change due to natural selection. Being the smallest group of living things capable of undergoing evolution, populations are the smallest unit of evolution.
The genetic variety of all the people within a community is thought to be accounted for by a "pool" of genes and gene types. Those who possess adaptive qualities are more likely to live and procreate. Next-generation individuals inherit these adaptive features.
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Why is blood a slightly higher temperature than typical body temperature?
O As bacteria and viruses are destroyed by leukocytes, they release bursts of heat
The bright red pigment of blood warms the internal proteins
O Blood pressure causes formed elements to bump into sides of blood vessels, resulting in friction and resistance
The excess mitochondria in red blood cells produce extra ATP
Identify structure C in the figure.
Answer:
Ribosome
Explanation:
Ribosome is involved in translation. Whenever you see a large rough shape with tRNA molecules in front it, then its a ribosome.
A female Komodo dragon (Varanus komodoensis) kept in isolation in a zoo had progeny. Each of the offspring had two identical copies of every gene in its genome. However, the offspring were not identical to one another. Based on your understanding of parthenogenesis and meiosis, generate a hypothesis to explain these observations.
The hypothesis is that the female Komodo dragon reproduced asexually through parthenogenesis, resulting in progeny with two identical copies of every gene in their genome, but still displaying differences due to other genetic factors. This explanation accounts for the observations mentioned in the question.
Based on the observations mentioned, we can generate a hypothesis to explain the situation. The female Komodo dragon in isolation in the zoo most likely underwent a type of asexual reproduction called parthenogenesis. In parthenogenesis, an unfertilized egg develops into an offspring without the need for a male contribution. This process can occur in certain species, including some reptiles.
In the case of the Komodo dragon, the female may have produced eggs through meiosis, a process where the genetic material is halved. However, during meiosis, the chromosomes can sometimes fail to separate properly, resulting in the offspring having two identical copies of each gene in their genome. This phenomenon is known as a "meiotic error" or "polyploidy."
Even though the offspring have identical copies of genes, they may still exhibit genetic variations due to other factors like genetic recombination or mutations that occurred during the process. Therefore, although the offspring share the same genes, they can still differ from one another.
In conclusion, the hypothesis is that the female Komodo dragon reproduced asexually through parthenogenesis, resulting in progeny with two identical copies of every gene in their genome, but still displaying differences due to other genetic factors. This explanation accounts for the observations mentioned in the question.
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Where are sugar and oxygen removed from the blood?
Hint: Sugar and oxygen are processed here to
release usable energy
Please explain this.
Sugar and oxygen are removed from the blood primarily in the cells of body tissues during cellular respiration.
During cellular respiration, sugar (glucose) and oxygen are combined in the presence of enzymes within the cells to produce usable energy in the form of adenosine triphosphate (ATP). This process occurs in the mitochondria, which are organelles found in most cells. The mitochondria are often referred to as the "powerhouses" of the cells because they generate ATP through the breakdown of glucose and the utilization of oxygen.
Within the mitochondria, a series of biochemical reactions take place, collectively known as the citric acid cycle and the electron transport chain. These processes break down the glucose molecule and transfer high-energy electrons to generate ATP. Oxygen acts as the final electron acceptor in the electron transport chain, enabling the efficient production of ATP.
As glucose is broken down and ATP is produced, carbon dioxide and water are generated as byproducts. Carbon dioxide is transported back into the blood and carried to the lungs, where it is exhaled. Oxygen is continuously supplied to the cells through the bloodstream, ensuring the availability of this crucial molecule for cellular respiration.
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