Answer: The given reaction is a "Dehydration Synthesis Reaction".
Explanation:
In chemical science the antonym of hydration is dehydration reaction which is a common process of conversion take place by involving loss of water from reacting molecule or ion. For an instance the dehydration process help in formation of disaccharide (sucrose) from two monosaccharides (glucose + fructose) as given in reaction.
Some other examples are like conversion of an acid and an alcohol into an ester and reaction called as "Fischer–Speier esterification", Conversion of an alcohol to alkene etc. Normally dehydration is followed by heating or leaving at room temperature, although it is a time taking process. Some common dehydrating agents are like alumina and sulfuric acid for organic synthesis.
There are many factors that influence the number of different kinds of plants in a biome. Why is elevation, or height, a factor that influences what kinds of plants can live in any certain biome on Earth?
Answer:
A: The elevation helps to determine the temperature of the biome.
Explanation:
Jane told Jill that the name "sunflower' comes from the fact that sunflowers follow the sun in the sky throughout the day. Jane said
that sunflowers actually turn around on their stems to find the sun. To test this idea, Jane and Jill designed an experiment. They
grew a pot of sunfowers outside in natural sunlight, one pot in the house near, but not directly in front of a window, and the final pot
inside the house, away from all windows. All other growing conditions were the same: soil, water, pot size. The girls could not
regulate the outdoor temperature, but since it was spring, the day and night temperatures were pretty close to the indoor
temperature
What would be the next logical step in this experimental design?
to water the plants at exactly the same time each day
to place a shade over the window at different times throughout the day
to track the direction the outdoor sunflower heads were facing throughout the
day
to track the direction the sunflower heads were facing each hour throughout the
day
Answer:
The correct option is D) to track the direction the sunflower heads were facing each hour throughout the day.
Explanation:
The next step that Jane and Jill should take is to track the direction of each sun flower. They should also check whether the sunflower that is placed in the Sun is the only one that tilts or whether the other sunflowers also tilt. After properly tracking the results, they should be able to draw the results and deduce a conclusion. Hence, Option D is correct.
In what type of ecosystem can this population be found?
I chose Biome to be desert and Organism to be armadillo. Plz help I don’t get what they are asking me!
Answer:
Armadillo is the barrel-shaped animal that lives mostly in hot and warm areas like: rain forests, grasslands, and semi-deserts.
Explanation:
Biome is the habitat where the organisms live. As we know different organisms have different comfort zone of temperature, environment etc. for living.So some live in the cold polar areas where some in the hot desserts.Similarly, Armadillo is an organism that has adopted itself to live in the warm areas of rain forests and semi desserts.Armadillo is commonly found in the grasslands of Central America.Before the three-dimensional structure of DNA was discovered, scientists knew that DNA contained nitrogenous bases. The table below shows the percentages of the nitrogenous bases in a DNA sample. Which rule can be used to determine the percentages of the missing nitrogenous bases? Complete the table AND explain your answer.
Chargaff's rule will be applied to know the percentage of missing bases.
The table is filled and shown in attachment.
Explanation:
According to the Chargaff's rule, the base pairs of pyrimidine and purine should have the ratio of 1:1.
It is based on the principle that Guanine bonds with Cytosine should be in equal concentration while Adenine bonds with thymine should be in equal concentration. Chargaff rule applies to the DNA only.
Final answer:
Chargaff's rules can be used to determine the percentages of the missing nitrogenous bases in DNA. According to these rules, the concentration of adenine is always about the same as the concentration of thymine, and the same is true for guanine and cytosine. If the percentage of thymine is known, the percentages of adenine, guanine, and cytosine can be calculated accordingly.
Explanation:
Chargaff's rules can be used to determine the percentages of the missing nitrogenous bases in the DNA sample. According to Chargaff's rules, within each species, the concentration of adenine (A) is always about the same as the concentration of thymine (T), and the same is true for the concentrations of guanine (G) and cytosine (C). Therefore, in the given DNA sample, since the percentage of thymine is 22%, the percentage of adenine will also be 22%. Additionally, since adenine and thymine always pair up, the sum of their percentages will be 44%. Similarly, the sum of the percentages of guanine and cytosine will also be 44%, and since the percentages of all the nitrogenous bases should add up to 100%, the percentages of guanine and cytosine will be 56%/2, which is 28% each.
Why is it important that cardiac muscle tissue does not tire
It is important that cardiac muscle tissue does not tire so that a continuous supply of Oxygen to the tissues is maintained.Otherwise, the metabolic activities of the body will cease.
Explanation:
Cardiac muscles are the muscles of the heart.
The pumping mechanism of the heart is due to the contraction and relaxation of cardiac muscles.
The blood that carries oxygen is transported to the different tissues of the body through the blood vessels and provides the oxygen to the tissues for metabolic functions.
If cardiac muscles tire, then the heart will stop pumping and oxygenated blood will not reach the cells. Deficiency of oxygen will result in reduced ATP production and soon the activities of tissues will cease and multiple organ failure will occur.
This will lead to the death of the individual.
Which of these structures a
mese structures are found in plant cells but not in animal cells?
Answer: Cell wall and chloroplasts
Explanation:
Structures that are similar in structure but different in function
Answer:
Some organisms have anatomical structures that are very similar in embryological development and form, but very different in function. These are called homologous structures. Since these structures are so similar, they indicate an evolutionary relationship and a common ancestor of the species that possess them
Explanation:
what are some activities that cells engage in that require energy
Answer:
Activities like cell division, photosynthesis, active transport, transmission of nerve impulses etc. needs energy.
Explanation:
Energy is the basic element that makes the cellular processes in our body to occur.These energy required is released from food and storing it as ATP.The process of cell division is a continuous and important one which requires energy for its continuation. Similarly other activities of cell that provides us different functionability of our body parts requires energy as well.22. Where are most mountains on Earth formed?
A. at volcanic chains
B. at strike slip faults
C. at mid-ocean ridges
D. at convergent plate boundaries
D.
Most mountains on Earth are formed at convergent plate boundaries
Explanation:
At the convergent boundary, the denser plate (usually an oceanic plate) gets subsided under the less dense plate (usually the continental plate). The stress in the boundary from the colliding tectonic plates causes fissures to develop along the boundary, in the overlying plate. As the denser plate ‘dives’ into the mantle, it melts and this magma rises, with pressure, along the fissures, and explodes violently on the surface forming volcanic arc geographical features.
An example f such a region is the Ring of Fire that is home to mountain ranges like the Andes in South America, Southern Alps of New Zealand, and the Cascade Range of North America.
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Most mountains on Earth are formed at convergent plate boundaries. The correct option is D, at convergent plate boundaries.
Convergent plate boundaries occur when two tectonic plates collide or move toward each other.
There are three main types of convergent plate boundaries:
Oceanic-continental convergence: When an oceanic plate collides with a continental plate, the denser oceanic plate is subducted beneath the continental plate. This subduction process leads to the formation of mountain ranges known as volcanic arcs. Oceanic-oceanic convergence: When two oceanic plates collide, one plate is usually subducted beneath the other, forming a trench. As the subducted plate sinks into the mantle, it can generate volcanic activity, giving rise to island arcs and associated mountain chains. Continental-continental convergence: The collision causes the crust to crumple, resulting in the formation of large mountain ranges. The Himalayas, the Alps, and the Rocky Mountains are some examples.Therefore, the correct option is D.
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What is a scientific theory?
A.
a reasonable guess based on instinct
B. an imaginative idea explaining natural phenomena
C. a broad, evidence-based explanation for a phenomenon
OD.
a tentative statement with little or no predictive power
Answer:
C. a broad, evidence-based explanation for a phenomenon
what organ is responsible for secreting the parathyroid hormone to get the body back to homeostasis?
Answer:
The organ is responsible for secreting the parathyroid hormone to get the body back to homeostasis is parathyroid glands .
Explanation:
These parathyroid glands that are responsible for secreting the parathyroid hormones are smaller glands that are situated in the front of the neck. This parathyroid hormone is vital for maintaining and controlling the levels of calcium in the our body. This parathyroid glands some times secretes too high or too low hormone leading to hyperthyroidism and hypothyroidism. The hyperthyroidism is a state when large amount of hormone is secreted than required. Conversely hypothyroidism, occurs when the less amount of hormone is released.
The parathyroid glands are responsible for secreting the parathyroid hormone (PTH) to get the body back to homeostasis by increasing blood calcium concentrations.
Explanation:The organ responsible for secreting the parathyroid hormone (PTH) to get the body back to homeostasis is the parathyroid glands. The parathyroid glands produce and secrete PTH in response to low blood calcium levels. PTH increases blood calcium concentrations through various mechanisms, including enhancing reabsorption of calcium by the kidneys, stimulating osteoclast activity, and stimulating the production of calcitriol to enhance absorption of dietary calcium by the intestines.
Bones: PTH stimulates the release of calcium from bones, where it is stored. This process, called bone resorption, increases the amount of calcium in the bloodstream.
Kidneys: PTH promotes the reabsorption of calcium from the urine back into the bloodstream. It also decreases the reabsorption of phosphate in the kidneys, indirectly increasing calcium levels.
Intestines: PTH indirectly enhances the absorption of calcium from the intestines, primarily through its effects on vitamin D metabolism.
By orchestrating these actions, PTH helps to regulate blood calcium concentrations, which is crucial for various physiological functions, including muscle function, nerve signaling, blood clotting, and bone health. This demonstrates the importance of the parathyroid glands and PTH in maintaining calcium homeostasis in the body.
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Which describes a population depending on an abiotic factor?
Final answer:
A population's dependence on an abiotic factor is illustrated by how non-living environmental elements like temperature and water influence the living organisms of an area. Ecologists use tools like demography to understand population dynamics and the balance of ecosystems. Abiotic factors are central to defining the characteristics and inhabitants of a biome.
Explanation:
Describing a population depending on an abiotic factor involves understanding how non-living elements of the environment, such as temperature, water, and sunlight, affect the organisms living within a particular area. A key example is how the amount of rainfall and temperature can influence soil quality, which in turn affects the types of plants that can thrive in an ecosystem. This subsequently determines the types of animals that inhabit the area since they depend on the plants for food, shelter, and breeding grounds.
To study these interactions, ecologists apply statistical tools like demography. They explore how population dynamics are influenced by both biotic and abiotic factors, which includes analyzing how various reproductive strategies impact the long-term viability of a population. This multi-faceted approach helps ecologists understand the complex web of dependencies in natural ecosystems.
The interplay between abiotic factors and biotic components defines the structure and character of a biome. For instance, in aquatic ecosystems, abiotic factors such as salinity, light penetration, and water temperature are crucial in determining which species can survive and flourish. All these components form the intricate mosaic of interactions that dictate life in various habitats.
Help pls Farming is one example of a human activity that has changed the environment.
Which is the NOT a reason farming has hurt the environment?
It uses large amounts of fresh water
It increased the availability of food for humans
It destroys habitats of many soecies
It contributes to soil erosion and desert formation
Farming increased the availability of food for humans is NOT a reason farming has hurt the environment.
Explanation:
Farming requires the tillage of land and therefore loosens the soil such that it is easily carried by agents of soil erosion – like wind and water.
In addition, most farming methods practice monoculture hence reducing the biodiversity of ecosystems in the region. Poor biodiversity leads to loss of species and low capacity to adapt to environmental changes/.
Farming also requires water to water the plants. This water is usually sourced from freshwater bodies like rivers and lakes. Often, this water is overdrawn leading to depletion of water to the environment denying other species their share of water.
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true or false?? it’s in the picture. i hope it’s easy to read
The statement that All organism that are internal fertilizers develop theri offerings internally is true
What organisms fertilize internally?
When a female organism undergoes internal fertilization, the procedure takes place inside her body. Mammals, reptiles, birds, and certain fish species all exhibit this frequently. The male gametes, or sperm, are placed inside the female reproductive canal during internal fertilization, where they join the female gametes, or eggs, to complete the fertilization process.
Internal fertilization occurs in species like humans, where the embryo grows inside the body of the female until it is ready to be birthed. In contrast, fertilization happens outside the body when using external nutrients, usually in water for aquatic organisms.
Most bony fish, numerous reptiles, some cartilaginous fish, the majority of amphibians, two mammals, and all birds exhibit this. Insects and reptiles lay leathery eggs, whereas birds and turtles lay eggs with
What molecule is used to cut out a section of DNA?
Answer: restriction endonuclease.
Explanation: restriction endonuclease recognize a specific site at a DNA molecule called restriction site and attach to it and cleave DNA into pieces by the cleavage of phosphodiester bond. Restriction site are few nucleotides in length found in the middle of the polynucleotide chain.
3. Which of the following reflect reasons for America's interest in the Panama Canal?
to protect the Americans who were in the Panama Canal zone
to protect its new holdings in the Pacific
to shorten the sailing time between the east and west coasts
to create a quick passage way to Japan so the Japanese could immigrate
to facilitate the faster movement of naval ships from the Atlantic to the Pacific
"To facilitate the faster movement of naval ships from the Atlantic to the Pacific" reflect one of the reasons for America's interest in the Panama Canal.
Answer: Option E
Explanation:
Panama Canal is an artificial or man-made waterway of 82 km located in transcontinental country in Central America and South America named as "Panama". France was the very first nation to start work on the canal in 1881 but after some engineering issues they eliminated themselves from the project.
In 1901 the United States leaded the project which finally resulted into inaugural ceremony of the panama canal on 15th August, 1914.The bypass, one of the largest and most complex engineering projects ever undertaken, significantly reduced the time for ships to pass between the Atlantic and Pacific oceans. Therefore it allowed them to avoid the long, risky Cape Horn path around the southernmost tip of South America via the Drake Passage or Magellan Strait.
Final answer:
America's interest in the Panama Canal was due to strategic military needs for rapid naval deployment, economic benefits provided by a quicker route between oceans during the Gold Rush, and the enhanced global power projection that it enabled. So, the correct statement is "to facilitate the faster movement of naval ships from the Atlantic to the Pacific"
Explanation:
The reasons for America's interest in the Panama Canal were multifaceted. From a strategic military standpoint, the U.S. needed a faster way to move its naval fleet between the Atlantic and Pacific oceans, especially after experiencing the prolonged sailing time during the Spanish-American War. The Gold Rush and the expansion of U.S. holdings in the Pacific following the war showed the economic importance of a shortcut between the two coasts. Lastly, the canal would facilitate the faster movement of naval ships, strengthening America's defense and ability to project power globally.
a solution of ph6 contains __________ h+ than the same amount of a solution of ph8
Answer:
A solution at pH 6 contains 100 times more H+ than the same amount of solution at pH 8.
Explanation:
pH of a substance determines the hydrogen ion concentration of a solution. Acidic solution tend to have a higher concentration of H+ ions as compared to that of water. They have a concentration greater than 1 × 10^{-7} M. Basic solutions have lesser concentration of H+ ions as compared to that of water. They have a concentration lesser than 1 × 10^{-7} M. A solution from pH range 1 to 6 will be acidic. A solution from pH rage 8-10 will be basic.
When the carbon atoms of the glucose molecule are broken apart in glycosis and the Rebs cycle, what is the result.
Answer:
the correct answer is CO2 and ATP
Which is an advantage of sexual reproduction over asexual reproduction?
Answer:
in sexual reproduction we get genes from both our parents and we have a combination of them...that leads to genetic diversity...more diversity means more chances to survive different environment conditions.... in asexual reproduction.. offsprings are identical.if environment conditions are rough...all of them won't stand a chance...and also....in sexual reproduction genetic variation can lead to evolutionary advancements
What is included in the nervous system?
a) Heart
b) Skin
c) Brain
d) Lungs
Lungs and skin
Answer:
The answer is C) Brain. The brain processes the signals that are sent to it from the nerves in your body.
Answer:c) Brain
Explanation:
Nervous system is the seat of coordination of all actions and sensory information through sending of signals to all body part. It is divided into two; the central nervous system(CNS) and the pheripheral nervous system (PNS). The CNS comprise of the Brain and spinal cord.
The Brain is what is what is included in Nervous system
Most grasses of the prairies
are bunchgrasses
grow in clumps
grow in tufts
are sod-forming grasses
Answer:
are bunchgrasses
Explanation:
Laboratory Re
3. MEIOTIC DIVISION
a. Considering meiosis in humans, indicate the:
1. number of chromosomes in the parent cell
2. number of chromatids in daughter cells formed by first division
3. number of chromosomes in daughter cells formed by first division
4. number of chromosomes in daughter cells of second division
5. number of haploid cells formed by meiotic division of parent cell
1. Number of chromosomes in the parent cell is 46
2. Number of chromatids in daughter cells formed by first division is 46
3. Number of chromosomes in daughter cells formed by first division is 23
4. Number of chromosomes in daughter cells of second division 23
5. Number of haploid cells formed by meiotic division of parent cell is 4
Question 10 of 10
2 Points
What does polymerase chain reaction (PCR) do?
O
A. Cuts a DNA sample into fragments
O
B. Separates DNA fragments by size
O
c. Provides an overall picture of a person's chromosomes
O D. Makes more copies of a sample of DNA
Option D
polymerase chain reaction (PCR) do Makes more copies of a sample of DNA
Explanation:
A procedure to create several portraits of a distinct DNA section is termed as Polymerase chain reaction. In other words, it is a lab routine handled to compose various representations of a portion of DNA. PCR is extremely explicit and can be utilized to increase, or model, a particular DNA destination from a hybrid of DNA particles.
In PCR, the effect is regularly cycled within a range of temperature variations, which deduct countless models of the destination range to be exhibited. PCR intends to obtain sufficient of the objective DNA region that it can be examined or applied in some other way.
Amino acid is to protein as
A. fat is to lipid.
B. DNA is to RNA.
C. sugar is to fat.
D. simple sugar is to starch.
Today, cells are classified in two groups according to whether they contain membrane - bound
Final answer:
Cells are classified based on whether they have a membrane-bound nucleus into prokaryotic and eukaryotic cells in Biology.
Explanation:
The subject of this question is Biology. The student is asking about the classification of cells based on whether they contain membrane-bound nuclei.
Based on whether they have a nucleus, there are two basic types of cells: prokaryotic cells and eukaryotic cells. Prokaryotic cells do not have a membrane-bound nucleus, while eukaryotic cells do have a membrane-bound nucleus.
For example, animal cells, plant cells, fungal cells, and protist cells are classified as eukaryotic cells, while bacterial cells are classified as prokaryotic cells.
Which of the following is the best explanation for the presence of light -colored lizards in the white sands region of New Mexico ,when darker lizards in surrounding areas
Light-colored lizards in New Mexico's white sands region likely have evolved camouflage coloration to avoid predators, a process driven by natural selection that favors lizards whose coloration blends into their environment.
Explanation:The presence of light-colored lizards in the white sands region of New Mexico while darker lizards populate surrounding areas can likely be explained through the concept of camouflage as an adaptive feature for survival. These lizards have likely evolved coloration that allows them to blend into their specific environments to avoid predation. In regions with white sands, lighter coloration makes the lizards less visible to predators, enhancing their chances of survival. On the other hand, darker lizards in areas with darker soils and rocks would similarly benefit from a coloration that blends in with their surroundings, as their coloration also acts as camouflage. This adaptation process is driven by natural selection, where individuals that are better able to avoid predators because of their coloration are more likely to survive and reproduce.
59:44
Which property of soil depends on the size of particles?
O color
O odor
O temperature
O texture
Mark this and return
Next
Submit
Answer:
The answer is O. Texture
Explanation:
Answer:
the answer is d texture
Explanation:
What does an antibiotic do exactly
Answer:
antibiotics tend to reduce/stop pain for a while but the bacteria/ virus may eventually be resistant to it
Explanation:
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How are island archipelagos also called island arcs formed.
Answer:
Island archipelagos are called island group is a chain or cluster or collection of islands.
Explanation:
Archipelago is derived from Greek Word that means chief sea.
It is isolate and contain large amount of water or large land mass
Ex-Scotland has 700 islands that is surrounding the mainland which form an archipelago.
Answer:
When two oceanic plates converge, one of the plates sinks underneath the other and forms a deep depression called ocean trench. The plate sinks further down into the mantle and begins to melt. The molten rock (magma) rises toward the surface from the melting plate forming a chain of volcanic islands (island arcs) behind the ocean trench.
Explanation:
The Earth's crust is divided into several hard and rigid tectonic plates that slide over the mantle. Tectonic plates can interact in three different ways: converge (move toward one another), diverge (move away from one another) or transform (slide past one another). The plate margins are the boundaries where plates meet and they are of three kinds: oceanic-oceanic, continental-continental, and continental-oceanic.
When two oceanic plates converge, one of the plates sinks underneath the other and forms a deep depression called ocean trench. The plate sinks further down into the mantle and begins to melt. The molten rock (magma) rises toward the surface from the melting plate forming a chain of volcanic islands (island arcs) behind the ocean trench.
An island arc comprises a curving series or group of volcanic islands that form near the convergent boundary of two tectonic plates. They are formed from the volcanic activity along a subduction zone, where one oceanic tectonic plate subducts (one plate sinks under another plate into the mantle of the Earth) another oceanic plate. This movement pushes the lower plate further deeper to a point where the temperature is sufficient to melt the subducted plate and results in the production of magma directly below the top tectonic plate. This magma then rises through fractures and reaches the upper crust and forms volcanoes which eventually rise high enough to become islands. The islands of Japan, the Aleutian Islands, etc are examples of island arcs.
When two continental plates converge, they collide and compress to create complex mountain ranges having great height. The Himalayas formed by the collision of the Indian-Australian plate and the Eurasian plate is an example.
During the convergence of continental and oceanic plates, the denser oceanic plate sinks below the continental plate and a chain of volcanoes known as a volcanic arc are formed. The examples of volcanic arcs are the Cascade Mountains of North America and the Andes Mountains of South America.
Why is fresh water a limited resource?
Groundwater is too difficult to access
Most water covering Earth is salt water.
The supply of water on Earth decreases over time.
Too much water is wasted on irrigation
Answer:
The supply decreases over time
Fresh water is a limited resource because too much water is wasted on irrigation.
What is irrigation?Irrigation is defined as the artificial means of watering plants in agriculture which includes canals from underground water.
This process in some areas are the only source of water for farming and this leads to wasting of excess fresh water on irrigation.
Therefore, fresh water is a limited resource because too much water is wasted on irrigation.
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