Why don’t offspring always look like their parents?
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Related Questions
Which of these is true of prokaryotic cells but not true of all eukaryotic cells?
Will contain the molecule DNA as its genetic material
Will have a cell wall
Will have a nucleoid region
will have linear DNA
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Answer:
Prokaryotes have a nucleoid region
Explanation:
Prokaryotes have a nucleoid, instead of a nucleus. This is because they don't contain any membrane bound organelles, but eukaryotic cells do contain membrane bound organelles.
Organisms developed _________ that provided its own food source.
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Answer:
autotrophic
Explanation:
An autotroph is an organism that can produce its own food using light, water, carbon dioxide, or other chemicals. Because autotrophs produce their own food, they are sometimes called producers. Plants are the most familiar type of autotroph, but there are many different kinds of autotrophic organisms.
Answer:
Explanation:
An autotroph is an organism that can produce its own food using light, water, carbon dioxide, or other chemicals.
A yellow spider with black spots moves into a population of solid black spiders. According to the theory of gene flow, which of the following is most likely to happen over time?
An increase in the number of yellow spiders with black spots.
A decrease in the number of yellow spiders with black spots.
An increase in the number of solid black spiders.
The number of solid black spiders will remain the same.
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Answer:
A Increase in the number of yellow spiders with black spots
Explanation:
Answer:
An increase in the population of yellow spiders with black spots.
Explanation:
True or false air entering a low pressure region will fall and cool
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The correct answer to the statement " air entering a low pressure region will fall and cool " is absolutely false.
What is meant by pressure region?A pressure region simply refers to that area of a body or system in which pressure is directly excerted in that area. In science, it is ratio of force per unit area.
From the context of the task given above, the air entering a low pressure region will fall and cool is not true simply because of the reduced pressure. The S.I unit of pressure is Newton ( N )
In conclusion, it can therefore be deduced from the explanation given above that pressure is derived quantity.
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You have two black beetles: Eleodes carbonarius and Eleodes armata. What level of classification do they both belong? A. Genus B. Family C. Order D. All of the above
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Answer:
Genus
Explanation:
They would both belong to the Genus "Eleodes"
Eleodes carbonarius and Eleodes armata are belongs to Genus level of classification do they both belong, hence option A is correct.
What is genus level of classification?In biological categorization, a genus is a taxonomic group that comes after family and before species. A genus consists of animals with related characteristics.
A collection of connected living objects (such as plants or animals) that, according to scientific classification, is made up of one or more species and is placed below the family.
The general concept behind a genus is that it represents species that are ancestrally related, are distinct from other genera, and do not include an excessive amount of species, even though classification schemes vary between scientists studying various organisms.
Therefore, option A is correct.
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One difference between photosynthesis and cellular respiration is that cellular respiration:
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The main difference between photosynthesis and cellular respiration is that photosynthesis is an anabolic process, where the synthesis of organic compounds occurs, storing energy whereas cellular respiration is a catabolic process, where the stored organic compounds are utilized, producing energy.
Mutations that result in no gene product or totally nonfunctional gene products are called: Isomers Isoalleles Null alleles Lethal alleles
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Null alleles are mutations that result in no gene product or a totally nonfunctional gene product. Null alleles are typically caused by the deletion of a gene or the disruption of the gene's coding region.
These mutations can have a wide range of effects on the cell, ranging from mild to lethal. Null alleles can be dominant or recessive and can result in a variety of phenotypes.
For example, in humans, a null allele that affects the production of hemoglobin can result in a mild anemia or a more severe form of anemia.
Null alleles can also result in complete loss of function of a gene, such as a gene involved in the development of an organ or the production of a protein.
Null alleles can also be caused by changes in the regulation of gene expression. In some cases, these mutations can cause an organism to be unable to produce the required proteins and can result in a number of different diseases.
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A snake that eats a frog that has eaten a insect that fed on a plant is a:
a - second level producer
b - first level consumer
c - first level producer
d - third level consumer
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Answer:
Ok,
If you are asking for the snake, then - third level consumer
If you are asking for the frog ,then - second-level consumer
If you are asking for the insect ,then - first-level consumer
And for plant - first level producer
Hope it helps!
1.Tell me all you know about the hormonal regulation of ECF osmolality by ADH and aldosterone. Include an explanation of our thirst mechanism. 2. Tell me all you know about glucose as a fuel source for various tissues/organs. Include normal and abnormal fasting blood glucose values. Explain how blood glucose levels are regulated with hormones. Why should I be concerned about hyperglycemia and hypoglycemia? 3. Tell me all you know about Type I Diabetes Mellitus; causes, S\&S, treatment, etc. 4. Tell me all you know about Type II Diabetes Mellitus; causes, S\&S, treatment, etc. 5. Tell me all you know about ketoacidosis and diabetic coma; causes, S\&S, treatment,
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1. Hormonal regulation of ECF osmolality by ADH and aldosteroneADH regulates the ECF osmolality by acting on the distal convoluted tubules and the collecting ducts of the kidney. It increases the number of water channels called aquaporins to be inserted into the cell membrane of these tubules.
Aquaporins help in the reabsorption of water from urine, thus increasing the concentration of urine. Aldosterone acts on the distal tubules and collecting ducts of the kidney to regulate ECF osmolality. It increases the reabsorption of sodium ions and secretion of potassium ions, thereby increasing the water retention in the body. Our thirst mechanism is stimulated when the osmolality of the ECF is high, which causes the hypothalamus to trigger the thirst centre, making us feel thirsty and drink water.
2. Glucose as a fuel source for various tissues/organs Glucose is a primary source of energy for the body and is used by various tissues and organs for their metabolic activities. The normal fasting blood glucose levels are between 70 and 99 mg/dL. Abnormal fasting blood glucose levels indicate hyperglycemia (blood glucose levels higher than 126 mg/dL) or hypoglycemia (blood glucose levels lower than 70 mg/dL). Hormones such as insulin, glucagon, and epinephrine regulate the blood glucose levels. Insulin decreases blood glucose levels by facilitating the uptake of glucose by tissues and organs, whereas glucagon and epinephrine increase blood glucose levels by promoting glycogen breakdown and gluconeogenesis in the liver. Hyperglycemia and hypoglycemia can lead to complications such as diabetic ketoacidosis, diabetic retinopathy, neuropathy, nephropathy, etc.
3. Type I Diabetes Mellitus Type I Diabetes Mellitus is an autoimmune disease that occurs when the immune system attacks and destroys the insulin-producing beta cells in the pancreas. This results in a deficiency of insulin, leading to high blood glucose levels. The symptoms of Type I Diabetes Mellitus include polydipsia, polyuria, polyphagia, fatigue, weight loss, etc. The treatment of Type I Diabetes Mellitus involves insulin therapy, dietary changes, regular exercise, and self-monitoring of blood glucose levels.
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what is blood pressure answer choices
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Blood pressure is the measure of the force of blood against the walls of blood vessels. Answer choices for blood pressure are High, Low, Normal, and Abnormal.
The circulatory system is responsible for moving blood, oxygen, and nutrients to all parts of the body. The heart pumps blood through the arteries, which are the blood vessels that carry blood away from the heart to the rest of the body.
As the heart beats, it creates pressure that pushes blood through the arteries. This pressure is known as blood pressure.
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Fill in the blanks. Regulatory transcription factors bind to ________________, while general (or basal) transcription factors bind to _________________. Group of answer choices
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Answer:
mmdwvrtgshbfeuhe
Explanation:
the process of moisture being released from the leaves of trees and plants into air
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Answer: Evaporation
Explanation:
what is stomata?? what's those functions?
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Answer:
espero que te ayude amiga
which of the following is not a zoonosis? puerperal sepsis hantavirus infection anthrax brucellosis tularemia
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Among the given alternatives, puerperal sepsis is not a zoonosis. So, the First option is correct.
Puerperal sepsis is not a zoonosis. It is an infection that occurs in women after giving birth, usually as a result of bacteria entering the uterus. The other four diseases listed are zoonoses, meaning they are infectious diseases that can be transmitted from animals to humans.
Hantavirus infection is caused by rodents, such as mice and rats.Anthrax can be contracted by handling infected animals or their products.Brucellosis is typically transmitted through contact with infected animals or their secretions, such as milk.Tularemia, also known as rabbit fever, is a bacterial infection that can be transmitted through contact with infected animals, such as rabbits and rodents.To know more about Puerperal sepsis
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What is one way the tragedy of the commons could be avoided? Biology
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One way to avoid the tragedy of the commons is to implement a system of resource management that limits access to shared resources.
What could be done to prevent the tragedy of the commons?By setting quotas for usage, implementing harvest seasons and/or licensing systems, and using stewardship models like co-management and user-pay systems, access and use of these shared resources can be managed and protected.Additionally, creating incentives for conservation and investing in research and monitoring can help limit overuse of these resources.One way to avoid the tragedy of the commons is to implement a system of shared management and resource regulation. This could involve the formation of a governing body that sets rules for resource usage and enforces them.This governing body could implement quotas for resource usage, create incentives for conservation and environmentally friendly practices, and impose fines for those who over-utilize resources.With appropriate regulations and monitoring, the tragedy of the commons could be avoided, and resources could be preserved for future generations.To learn more about to prevent the tragedy of the commons refer to:
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A specific type of cell is being studied by a scientist. She notices the cell contains a nucleus, lysosomes, a cell membrane and cell wall. What is the correct classification of this cell?
A prokaryotic animal cell
B. A prokaryotic plant cell
C. A eukaryotic animal cell
D. A eukaryotic plant cell
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How does the washing of hands help prevent a societal problem?
It keeps water supplies clean.
It helps treat inherited disease.
It helps protect the environment.
It reduces the spread of disease.
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Answer:
It reduces the spread of disease
Explain the changes the farm worker in the following scenario is likely to experience with respect to seeding rate and yield estimates as he moves from one environment to another.
Situation: A young farm worker has been trained and worked for a number of years on an unirrigated dryland corn-growing property in the Southwest. This property has seen little development, and is being farmed in its natural state. The farmer then marries and moves to a large family property in the Missouri Valley. The property is owned by a family with a long-standing religious commitment to heritage farming methods. For the past three generations, the soil has been developed carefully, using largely organic techniques, low-impact tilling methods, and careful rotation to avoid soil depletion. The land is irrigated, the soil is fertile.
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Moving from a unirrigated dryland corn-growing property to an irrigation, fertile tract with thorough soil management procedures, resulting in better productivity, is likely to cause the farm worker to experience changes in seeding rate and yield estimations.
What alterations have been made to the farm over time?To replace the majority of the slain animals, new ones have been purchased. Even though the windmill has been repaired, not all of the animals are using it to generate energy.
How has the farm evolved through the years?Due to the acquisition of two of Pilkington's fields, the farm now has more animals and larger limits. The second windmill has been finished and is currently being used to grind maize.
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a student created a time machine and went to the future 100 years from now. All transportation vehicles, land, air, and sea are electric. How will this change the amount of CO2 in the atmosphere? Explain your answer. How will this affect global temperature? Explain your answer.
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Answer:
I think that electricity doesn't harm environment.because the environment is getting polluted from polluted gases.
Explanation:
Better planning trees and avoiding things which harm environment.
in a flowering plant, the cells that give rise to sperm undergo meiosis in the
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In a flowering plant, the cells that give rise to sperm undergo meiosis in the anthers.
In flowering plants, the reproductive structures called anthers are responsible for the production of pollen grains. Within the anthers, specialized cells called microsporocytes undergo meiosis to produce haploid microspores. Meiosis is a cell division process that results in the formation of cells with half the chromosome number of the parent cell.
The microspores produced through meiosis further develop into pollen grains, which contain the male gametes or sperm cells. The anthers are typically located within the stamen, which is the male reproductive organ of a flower.
The mature pollen grains are then released from the anthers and can be transported to the female reproductive structures of other flowers for fertilization to occur. This process ensures the sexual reproduction and genetic diversity in flowering plants.
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according to the fluid mosaic model,plasma membrane are mainly composed of phospholipids and proteins.Explain how structures S and T play the roles in the plasma membrane,which function as a selective barrier. please help me with this question
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Answer:
The plasma membrane is a thin layer of lipid molecules that surrounds the cell and separates the inside from the outside. The fluid mosaic model describes the structure of the plasma membrane as a two-layered structure of phospholipids with embedded proteins. This model explains how the structure of the plasma membrane allows it to act as a selective barrier, regulating the movement of substances in and out of the cell.
Structure S in the plasma membrane is represented by the phospholipids, which form a lipid bilayer with hydrophilic heads facing outwards and hydrophobic tails facing inwards. The hydrophilic heads are in contact with the extracellular fluid and intracellular fluid while the hydrophobic tails are in the middle of the membrane. The phospholipid bilayer provides a barrier that separates the inside and outside of the cell, restricting the movement of hydrophilic and large molecules through the membrane while allowing the passage of small and hydrophobic molecules.
Structure T represents the integral membrane proteins that are embedded in the lipid bilayer. These proteins have different functions, such as transport of molecules, cell signaling, and catalyzing chemical reactions. The proteins also contribute to the selective permeability of the membrane by regulating the movement of specific molecules in and out of the cell. For example, channels and carrier proteins regulate the movement of ions and larger molecules through the membrane while receptor proteins receive signals from the outside of the cell and relay them to the inside of the cell.
In summary, the plasma membrane is mainly composed of phospholipids and proteins according to the fluid mosaic model. The phospholipids form a lipid bilayer that acts as a barrier, while the proteins embedded in the bilayer regulate the selective permeability of the membrane by facilitating the movement of specific molecules in and out of the cell.
Explanation:
Describe how an age-structure diagram represents the ages and sexes of the individuals in a population
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Answer:
This diagram shows the distribution by ages of females and males within a certain population in graphic form. ... The centerline separates the females from the males. The female and male populations for each group are represented by the distance from the centerline, with females on the right and males on the left.
Explanation:
Was John's hypothesis supported or rejected? Use data to discuss this. Which fertilizer worked the best? Explain your answer using data from your table. Which plant did not grow well? Explain your answer using data from your table. Describe how the investigation could be tested further.
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a. John's hypothesis that organic fertilizer would make the plants grow taller was not supported.
b. the chemical fertilizer worked the best in promoting plant growth compared to the organic fertilizer and the absence of fertilizer.
c. The plant that did not grow well was the one without any fertilizer.
d. One can further test the investigation by increasing the sample size and repeat the experiment.
How do we calculate?a. Based on the data provided, John's hypothesis that organic fertilizer would make the plants grow taller was not supported but the plant with the chemical fertilizer grew the most.
b. The plant with organic fertilizer showed some growth but was consistently shorter than the plant with chemical fertilizer. The plant without any fertilizer showed minimal to no growth, indicating that fertilizer, whether organic or chemical, is necessary for optimal plant growth.
c. The plant that did not grow well was the one without any fertilizer as it had minimal growth throughout the observation period, with a final height of only 0.2 cm on day 10.
d. Increasing the sample size instead of using only one seed per pot, multiple seeds could be planted in each pot to account for individual variation and enhance the statistical reliability of the results.
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Complete question:ohn had a science fair project that he needed to do. He wanted to test the effects that organic and chemical fertilizers had on plant growth. John predicted that the organic fertilizer would make the plants grow taller. He used three pots, three of the same type of seed, soil, organic fertilizer, chemical fertilizer, water, and a ruler. John put soil in the pots. He added chemical fertilizer to the first pot, organic fertilizer in the second pot, and no fertilizer in the third pot. He then planted one seed in each pot. John had to water the pots daily. He also checked for growth and took measurements for a period of 10 days. He measured the height of the plants.Days No Fertilizer (cm) Chemical Fertilizer (cm) Organic Fertilizer (cm)1 0 0 02 0 0 03 0 0 04 0 0 05 0 0.5 06 0 1.3 07 0 1.9 0.38 0 2.2 1.69 0 4.5 3.210 0.2 5.2 3.8John made a data table to record his measurements.After the 10th day, John observed that the plant with the chemical fertilizer grew the most.Was John's hypothesis supported or rejected? Use data to discuss this. Which fertilizer worked the best? Explain your answer using data from your table. Which plant did not grow well? Explain your answer using data from your table. Describe how the investigation could be tested further.
3. Sunflowers are beautiful flowers that can grow to be up to 12 feet tall.
Which part of the cell theory best explains how such a tall plant could
grow from such a tiny sunflower seed?
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In organisms all cells are formed from pre- basic unit of life of the existing cells.
Cell theory tells about all living organisms originated from of basic units called cells. The unified cell theory states that all living things are composed of one or more cells the cell is the basic unit of life and new cells arise from existing cells.
The process by which information passes is as follows firstly, DNA is passed between cells during cell division. secondly, cells of all organisms between the similar species are same, both structurally and chemically; and finally, energy flow takes place within Cells that provide the basic units of functionality .
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a young boy who routinely bites his finger nails develops a wound on his right pointer finger. a culture reveals alpha hemolytic, dry colonies on the blood and cna plates that are catalase negative, resistant to optochin, and 6.5% nacl negative. gram stain of the colony is gram-positive cocci in chains. the organism most likely isolated is:
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The organism isolated from the culture of Gram-positive cocci bacteria in chains which are catalase negative and resistant to optochin are: (c) Streptococcus viridians.
Gram positive bacteria are the types of bacteria which retain the color of the crystal violet stain. The cell wall of such bacteria are thick, mainly composed of peptidoglycan. Thus thick layer helps in retaining the stain.
Streptococcus viridians are streptococcal bacteria which are spherical in shape and attached to each other to form a chain. These bacteria are catalase negative which means they do not synthesize the catalase enzyme. Streptococcus yield a negative result in optochin sensitivity as well.
Therefore the correct answer is option c.
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The given question is incomplete, the complete question is:
A young boy who routinely bites his finger nails develops a wound on his right pointer finger. A culture reveals alpha hemolytic, dry colonies on the blood and CNA plates that are catalase negative, resistant to optochin, and 6.5% NaCl negative. Gram stain of the colony is Gram-positive cocci in chains. The organism most likely isolated is:
a. Enterococcus faecium
b. Enterococcus faecalis
c. Streptococcus viridians
d. Streptococcus agalactiae
HELPPP Riddle: Who am I? You may have seen my latest blockbuster movie. It's playing now
in underwater theaters. I am a
_ _ _ _ _ _ _.
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Explanation:
the answer will be sea star
Answer:
A Sea Star
Explanation:
Hope this helps!
PLEASE HELP ME IM TIMED!
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Answer:
number 2
Explanation:
nucleic acid. organic molecule that stores hereditary information; DNA and RNA.
Answer:
It would be #2
Explanation:
If you refer back to my first answer, you can see that this macromolecule is a nucleic acid because of the phosphate backbone with a sugar and nucleotide. Its purpose is to store/transmit genetic information.
What substance did the plant most likely absorb from the water for the process that produces the oxygen gas? Note: Elodea spp. is a species of plants that live in water. 1 point
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Elodea spp. is a species of aquatic plants that live submerged in water. Elodea is a plant that is used in various ways such as research studies and even as a decorative plant in aquariums. The plant Elodea is known to be a very significant and popular plant used for the process of photosynthesis.
Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy. Oxygen gas is produced during the process. It's quite clear that photosynthesis occurs in the presence of sunlight. The plant Elodea requires the presence of light to undergo photosynthesis.
The plant Elodea uses the energy from sunlight to combine carbon dioxide (CO2) and water (H2O) in order to produce sugar (glucose) and oxygen gas (O2). Elodea's root system is able to absorb water from the surrounding environment to perform the photosynthesis process.
Water is one of the most vital factors that is needed for photosynthesis to occur. In order for photosynthesis to occur, the plant Elodea must be able to access water through its root system. Therefore, the substance that the Elodea most likely absorbed from the water for the process that produces the oxygen gas is water (H2O).
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What does it mean when a planet is in a star's habitable zone?
A- It has oxygen in its atmosphere.
B-It has a day-night cycle and a seasonal cycle that resembles Earth's.
C-It has the right temperature to have liquid water.
D- it has signs of life
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When a planet is in a star's habitable zone It has the right temperature to have liquid water.
The correct option is C.
Where is the habitable zone?The orbital region around a star known as the habitable zone is where an Earth-like planet would be able to support life and have liquid water on its surface. Since liquid water is necessary for all life on Earth, it is assumed that alien life would also require it for defining a habitable zone.
What is the Earth's habitable zone?For water to continue to be a liquid, the distance at which Earth orbits the Sun is ideal. The habitable zone, sometimes known as the Goldilocks zone, is defined as being this far from the Sun. Rocky exoplanets located in their stars' habitable zones are better candidates for detection of liquid water on their surfaces.
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In photosynthesis conducted by plants, atp is made by.
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Answer:
is synthesized in the thylakoid membrane of the chloroplast.
Explanation: