most foliage leaves are flat and thin for maximal a. absorption of light b. absorption of co2 c. absorption of water d. a and b e. a, b and c

Answer:

C. The virus used the host plant's resources and

machinery to reproduce.

Explanation:

Bioaccumulation is the total accumulation of certain chemicals/contaminants in an organism, coming from diverse sources such as water, air, and diet. Therefore the case of mercury occurs when mercury is accumulated in an organism, for example, fish. The most common pathway for this to happen is through the food chain, nonetheless can occur through abiotic means, an example is in fish, where methylmercury is acquired through the gills.

When methylmercury is absorbed through the gastrointestinal tract & enters the bloodstream and goes rapidly to other parts of the body.

Mercury is a persistent substance, which can bioaccumulate, in living organisms, inflicting increasing levels of harm on higher-order species such as predatory fish and fish-eating birds and mammals through a process known as "biomagnification"

The release of processed mercury can lead to a progressive increase in the amount of atmospheric mercury, which enters the atmospheric-soil-water distribution cycles where it can remain in circulation for years. Mercury poisoning is the result of exposure to mercury or mercury compounds resulting in various toxic effects depending on its chemical form and route of exposure.

The major route of human exposure to methylmercury (MeHg) is largely through eating contaminated fish, seafood, and wildlife that have been exposed to mercury through the ingestion of contaminated lower organisms.

King mackerel, marlin, orange roughy, shark, swordfish, tilefish, ahi tuna, and all contain high levels of mercury.

Human activity is the main cause of mercury release, especially coal-fired power stations, residential coal burning for heating and cooking, industrial processes, waste incinerators, and as a result of mining for mercury, gold, and other metals.

Reducing consumption of raw materials and products generating mercury releases

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An increase in temperature will increase the rate of diffusion of vitamin C because temperature increase results in increase in diffusion rate.

Diffusion is the process of even distribution of a substance from high concentration regions to low concentration regions.

Diffusion of substances occurs as a result of difference in concentration between two points or regions known as concentration gradient.

The rate of diffusion is the time taken for a substance to diffuse.

The rate of diffusion depends on the following:

Therefore, increase in temperature will increase the rate of diffusion of vitamin C.

In conclusion, the rate of diffusion depend on the nature of the substance, concentration gradient and temperature.

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Answer:Why the dialysis bag was rinsed in step 2?

Explanation:

Chemists research the interactions of many types of electromagnetic radiation with atoms and molecules. The term "spectroscopy" refers to this interaction.

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Answer:

We feel dehydrated after consuming alcohol because ADH inhibition will cause less water to be reabsorbed in the distal tubules, causing frequent urination.

Pee, otherwise called micturition, is the arrival of pee from the urinary bladder through the urethra to the beyond the body. It is the urinary framework's type of discharge. Unreasonable measure of pee implies that your body makes bigger than typical measures of pee every day. An over the top volume of pee for a grown-up is more than 2.5 liters of pee each day. Continuous pee is the need to pee more frequently than expected. Diuretics are prescriptions that will increment urinary recurrence. At the point when the individual requirements to pee, the cerebrum demonstrates that the bladder muscles need to contract. At a comparative time, the mind shows to the sphincter muscles to unwind.

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Answer:

Explanation:

The scientific method

1. Make an observation.

2. Develop a hypothesis.

3. Test hypothesis by trying different experiements.

4. Collect data.

5. Determine if hypothesis is supported by data.

Observation Felt sleepy after eating lunch.

Hypothesis 1: Student wanted to be more alert for afternoon class and hypothesized exercise might make her feel alert to pay better attention in class.

Experimentation and data collection: Tried exercising before class to alleviated sleepiness but still felt sleepy.

Hypothesis 2: Student wanted to be more alert for afternoon class and hypothesized drinking water during class might make her feel alert.

Experimentation and data collection: Tried drinking water during class and discovered she felt more alert and was better able to pay attention in class.

Hypothesis supported through experimentation and data. Tried exercising and found it did not work. Tried drinking water and discovered it worked.

Explanation:

In endotherms, warm blood from the body's core typically loses heat to the environment as it passes near the skin. Shrinking the diameter of blood vessels that supply the skin, a process known as vasoconstriction, reduces blood flow and helps retain heat.Thus, the blood returning to the heart has not lost much heat.

Answer:

Reduces blood flow and helps retain heat thus the blood returning to the heart has not lost much heat

Sure, here's a condensed study guide for cellular respiration, ATP, and photosynthesis:

Process by which cells break down glucose and other organic molecules to produce energy (ATP) and release carbon dioxide and water as waste products.

Consists of three stages: glycolysis, the Krebs cycle, and the electron transport chain.

Glycolysis occurs in the cytoplasm and generates a small amount of ATP and NADH.

The Krebs cycle takes place in the mitochondria and produces more ATP, NADH, and FADH2.

The electron transport chain occurs in the mitochondria and generates the most ATP through oxidative phosphorylation.

Adenosine triphosphate (ATP) is the energy currency of cells.

Consists of adenosine and three phosphate groups.

Energy is released when the last phosphate group is removed, forming adenosine diphosphate (ADP).

ATP is regenerated by adding a phosphate group back to ADP through phosphorylation.

Process by which plants and other organisms convert light energy into chemical energy (glucose).

Occurs in chloroplasts and consists of two stages: the light-dependent reactions and the light-independent reactions (Calvin cycle).

Light-dependent reactions occur in the thylakoid membrane and generate ATP and NADPH.

Light-independent reactions occur in the stroma and use ATP and NADPH to fix carbon dioxide into glucose.

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Answer:

heterozygous chromosomes

Explanation:

They're both the same size and the same gene, but their different versions

The statement "competition can occur over resources such as space, mates, and nesting sites, not just over food " is true because in various species, individuals compete for limited resources to improve their chances of survival and reproduction.

In ecology, the bаttle between two species for the sаme resources in аn ecosystem is referred to аs ecologicаl competition. Food, wаter, аnd shelter аre exаmples of resources thаt аre necessаry for survivаl аnd reproduction in the environment. Members of the sаme species mаy compete for mаtes аs well.

The competition between species for shаred resources such аs spаce, food, аnd nesting locаtions is referred to аs interspecific competition, while intrаspecific competition occurs when individuаls from the sаme species compete аgаinst one аnother (conspecifics). Individuаls from different species compete with one аnother in interspecific competition, while intrаspecific competition occurs when members of the sаme species compete with one аnother.

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Answer:

Photosynthesis by land plants, bacteria, and algae converts carbon dioxide or bicarbonate into organic molecules. Organic molecules made by photosynthesizers are passed through food chains, and cellular respiration converts the organic carbon back into carbon dioxide gas.

Transcription is important in gene regulation because it controls the production of mRNA, which ultimately determines the expression of genes.

Transcription is the process by which the genetic information stored in DNA is converted into RNA. This RNA, in turn, is used as a template for the synthesis of proteins. By controlling the rate and timing of transcription, cells can regulate the expression of genes. This is particularly important in both bacteria and eukaryotes because it allows them to respond to changes in their environment and to different developmental cues. In bacteria, transcriptional regulation is often achieved through the binding of specific regulatory proteins to DNA sequences near the gene of interest. In eukaryotes, transcriptional regulation is more complex and involves a variety of mechanisms, including chromatin remodeling, DNA methylation, and the action of transcription factors.

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A high-resolution transmission electron microscope (HR-TEM) can reveal several qualitative information about a material, including its crystal structure, lattice defects, grain boundaries, chemical composition, and the presence of nanoparticles or nanoscale features.

A high-resolution transmission electron microscope (HR-TEM) is a powerful tool for investigating the structure and properties of materials at the atomic scale. By using a focused electron beam to transmit through a thin specimen, HR-TEM can provide detailed qualitative information about the material under study.

Firstly, HR-TEM can reveal the crystal structure of a material. By analyzing the diffraction patterns produced by the electron beam interacting with the crystal lattice, researchers can determine the arrangement of atoms within the material.

Secondly, HR-TEM can identify lattice defects within a material. These defects include vacancies, dislocations, stacking faults, and other structural imperfections that can affect the material's mechanical, electrical, or optical properties. HR-TEM allows researchers to visualize and characterize these defects at high resolution.

Furthermore, HR-TEM can detect and analyze grain boundaries in polycrystalline materials. Grain boundaries are interfaces between adjacent crystalline grains and can significantly influence the material's properties. HR-TEM enables researchers to examine the structure and properties of grain boundaries, providing insights into the material's behavior.

Additionally, HR-TEM can provide information about the chemical composition of a material. By utilizing energy-dispersive X-ray spectroscopy (EDS) in combination with TEM, researchers can map and identify the elements present in the material, aiding in the understanding of its composition and elemental distribution.

Lastly, HR-TEM is capable of visualizing nanoparticles and nanoscale features within a material. The high-resolution imaging capability of HR-TEM allows for the observation and characterization of nanoscale structures, such as nanoparticles, nanotubes, and nanowires, providing valuable insights into their size, shape, and arrangement.

In summary, a high-resolution transmission electron microscope (HR-TEM) can reveal qualitative information about a material's crystal structure, lattice defects, grain boundaries, chemical composition, and the presence of nanoparticles or nanoscale features. This information is crucial for understanding the material's properties and behavior at the atomic and nanoscale levels.

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Answer:

ANSWER C: SUBDUCTION IS THE CORRECT ANSWER

A subduction zone is located at a deep-ocean trench, it is a region in which one tectonic plate is sinking beneath another plate into the interior of the earth, hence option C is correct.

It is the region that is defined by the deep ocean trench and having lines of volcanoes situated parallel to these trenches, and also the zones of the earthquakes extended from trenches.

Oceanic trenches are trenches, which are prominent long, narrow topographic depressions of the ocean floor. Subduction zones are plate-tectonic boundaries where two plates converge, this creates earthquakes and volcanoes. This zone is formed when plates with thinner oceanic crust descend beneath a plate with thicker.

Therefore, subduction is a type of zone is located at a deep-ocean trench, hence option C is correct.

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Answer:

cartliage

Explanation:

Answer:

There is no punnet square in this question but it can still be answered based on the information provided.

Phenotypes of the dominant allele= 75%

Phenotypes of the recessive allele= 25%

Explanation:

This question involves a single gene that encodes a particular trait. The allele C is dominant over the allele c. This means an heterozygous (Cc) will have the phenotype encoded by allele C. A dominant allele is the allele that masks the phenotypic expression of another allele. The allele being masked is the recessive allele.

According to this question, two parents, each with genotype Cc were crossed. This means that each parent will produce the gametes: C and c. Using these gametes in a punnet square (see attached image), the following genotype of offsprings will be produced:

CC, Cc, Cc and cc.

- Offsprings with genotypes CC, Cc, Cc will show the phenotypes of the dominant allele (C) because allele C is dominant. Hence, the percentage is 3/4 × 100 = 75%.

- Offsprings with genotypes cc will show the phenotypes of the recessive allele (c). Hence, the percentage is 1/4 × 100 = 25%.

Adenyl cyclase is a protein enzyme located on the inner surface of the plasma membrane and catalyzes the conversion of ATP to cyclic AMP (cAMP). The hormone binds to its receptor, which activates adenylate cyclase, which leads to the formation of cAMP.

The cAMP functions as a second messenger, activating protein kinase A, which then initiates a cascade of reactions. Insulin is a hormone that stimulates the uptake of glucose by cells and regulates metabolism. Insulin causes the liver to convert glucose to glycogen and store it in the liver cells. When the body needs glucose, glucagon stimulates the liver to break down glycogen into glucose and release it into the bloodstream.

Cortisol is a hormone that regulates glucose metabolism and the body's response to stress. It increases the levels of glucose in the blood by stimulating the liver to convert glycogen to glucose and promoting gluconeogenesis, which is the formation of glucose from non-carbohydrate sources such as amino acids.Leptin is a hormone produced by adipose tissue that regulates appetite and energy expenditure. Thyroxine, or T4, is a hormone produced by the thyroid gland that regulates metabolism. It increases the rate of glucose metabolism, leading to an increase in glucose uptake and use by cells.  

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The common characteristics of the inner and outer planets are based on verified observations made through a range of space exploration devices and methods.

The common characteristics of the inner planets and outer planets are verified by observation and not just the opinions of scientists. It is because the characteristics are based on observations made using telescopes and other space exploration devices. These observations are made through various means, including analyzing light, radiation, and other electromagnetic waves, which are emitted or reflected by the planets. These observations have been conducted by a number of scientists over the years, and their findings have been analyzed and compared to create a comprehensive understanding of the inner and outer planets.

Observations of the planets are made through various means, including analyzing light, radiation, and other electromagnetic waves. These observations have been conducted by a number of scientists over the years, and their findings have been analyzed and compared to create a comprehensive understanding of the inner and outer planets.

The common characteristics of the inner and outer planets are based on verified observations made through a range of space exploration devices and methods. These observations have been conducted by many scientists and have been analyzed and compared to create a comprehensive understanding of the planets. Therefore, the characteristics are not just the opinions of scientists but are based on scientific observation and research.

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Answer:

For the treatment of patients.

Explanation:

As a doctor, I am using this new bandage For the treatment of patients. If this bandage has given me promising results than old bandages then I used these bandages for all my patients but if the bandage does not give me the required results and the old one is more better than the new one than I will reject using that new bandage and prefer old bandages.

Four separate tubes, each containing a different ddntp, not necessary in automated sequencing is the ddNTP lacks the oxygen atom at 3' carbon in addition to at the 2'carbon which is lacking in the dNTP.

The process just to determine the sequence of the nucleotide bases in the part of the DNA molecule has been called the DNA sequencing. In the process of the Sanger sequencing, the DNA molecule has to be sequenced which has been copied multiple times by using polymerase chain reaction (PCR). It has the chain termination method developed by the famous scientist Frederick Sanger and colleagues in 1977.

The DNA fragments of different lengths has been created. Fluorescent labelled dideoxynucleotides are then used to terminate further chain formation and this process marks the end of fragments and allows sequence determination.

Therefore, Four separate tubes, each containing a different ddntp, not necessary in automated sequencing is the ddNTP lacks the oxygen atom at 3' carbon in addition to at the 2'carbon which is lacking in the dNTP.

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Answer:

Zeke has cut the meristematic cells at the root tip, hence, the root will not elongate to get nutrients and water needed for plant growth.

Please find more explanation below

Explanation:

The root tips of a plant contain cells that actively divide, hence, causing growth or elongation of the roots. This allows the root to grow or penetrate into the soil in search of nutrients and water needed for the plants growth.

According to this question, Zeke decided to trim the ends of the roots of certain plants he is putting in his garden due to lack of space. However, he later discovered that these plants did not grow at all. This is because Zeek has cut off the root tip that contains the MERISTEMATIC CELLS responsible for the elongation of the roots into the soil. Hence, the roots are unable to absorb water and nutrients for the plant, preventing the overall growth of the plant.

The disaccharide lactose is often used as a substrate for penicillin production. Lactose is composed of two simple sugars, galactose and glucose, that are connected by a glycosidic bond.

This bond is hydrolyzed by the enzyme β-galactosidase, which is produced by the microorganism used to produce the penicillin. The hydrolysis of lactose results in the release of glucose and galactose which provide the carbon source for the microorganism.

The glucose and galactose are then converted into other forms of sugars such as fructose and mannose which can be used to synthesize the penicillin.

The production of penicillin requires the presence of a carbon source and lactose is an efficient source of carbon for the microorganism to utilize. In addition, lactose is also an effective source of nitrogen and other nutrients necessary for the growth of the microorganism. Therefore, lactose is an important component of penicillin production.

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Answer:

it's A

Explanation:

Answer:

A. PULLING

Explanation:

Edg 2020

TRUE,  an Hfr cell can indeed initiate chromosome transfer from one E. coli to another.

This is because Hfr cells (high frequency of recombination) have their F factor (fertility factor) integrated into their chromosome, allowing for transfer of the entire chromosome during conjugation with another E. coli cell.

This is different from F+ cells, which only transfer a portion of the F factor during conjugation.
Hfr cells (high-frequency recombination) have an integrated F plasmid in their chromosome, which allows them to transfer genetic material through conjugation to recipient E. coli cells.

Hence, it is true that An Hfr cell can initiate chromosome transfer from one E. coli to another.

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As a result, the death of a cell or the entire organism can be thought of as a form of catastrophic energy failure. This can trigger a range of processes that lead to the stiffening of muscles.

The initial step in this process is the cessation of breathing, which leads to a lack of oxygen and an accumulation of carbon dioxide. The resulting acidification of body fluids triggers a range of molecular changes that can cause muscle fibers to stiffen and become less pliable.

.When ATP levels drop, muscle fibers can become less elastic and more prone to stiffness. This can also cause the release of calcium ions from intracellular stores, which can activate enzymes that break down muscle proteins.

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Answer:

Monocercomonoides isn’t a living fossil, a holdout from the days of the earliest eukaryotes, Karnkowska notes. Its closest relatives still have small mitochondria, suggesting that it jettisoned the organelles fairly recently in evolutionary terms. She and her colleagues speculate that more eukaryotes missing mitochondria await discovery.

Explanation:

Answer:

Monocercomonoides isn’t a liviing form

Its closest relatives still have small mitochondria,

Answer:

The correct answer:

B. GK, GK

The insurance companies must operate as business, looking out for themselves and their clients' best : interests.

The issue of genetic discrimination in insurance is a complex one. Individuals with genetic risk factors may require more medical care and therefore be more costly to insure. Denying insurance coverage to individuals with genetic predispositions could be seen as discriminatory and unethical.

In many countries, there are laws in place to protect individuals from genetic discrimination in insurance. For example, in the United States, the Genetic Information Nondiscrimination Act (GINA) prohibits health insurers from using genetic information to deny coverage or set premiums.

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Roger works as a forensic detective. He examines a dead body and finds it to be utterly limp. The body is in a fundamental state of primary flaccidity. There are several phases of bodily decomposition, and distinct life cycles of insects—or insects—are discovered at various stages of the deceased body's deterioration.

primary flaccidity, When protein fermentation occurs within the body, cheese skippers, or Piophilidae, are discovered on the stage. Since these insects are not interested in the body while it is new, we can say that this is an advanced stage. primary flaccidity these insects often emerge after discovered  protein is fermenting, therefore we may call this a later stage. (Asset A)

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