hich of the following pieces of physical evidence was discovered as a mark of identification during the 1800s? fingerprinting fingerprinting eye-witness ids eye-witness ids dna testing dna testing lie-detector test lie-detector test

Answer:

Exocytosis is the process by which a large number of molecules are released

As the cell contains activated genes for the production of mitochondria, chloroplasts and a cell wall and inactive genes for root hair production, then it is a leaf cell.

Thus, the leaf cell is the correct option as plant cells contain a cell wall and the leaf helps in the photosynthesis process.

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A possible result would be the actual number of new leaves on a plant.

What are results?

Results are the outcome of investigations.

Results are unique from observation. Observations are the information we sense from a phenomenon. Results, on the other hand, are the information that we observed and recorded.

Going by these definitions:

Seeing the flowers on a plant will be an observation.

How much sunlight you put the plant in is a variable.

How often you water the plant is also a variable.

Seeing the pretty leaves on a plant is an observation.

The only option that is a result is the actual number of new leaves on a plant.

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The first stage of sleep is defined as the period between wakefulness and sleep, and it is characterized by a decrease in brain activity and muscle tone.

The body's typical state during the first stage of sleep includes a decrease in muscle tone, a slowing of brain waves, and a decrease in eye movement. During this stage, the brain waves are generally alpha waves, which are slower than those that occur during wakefulness, but faster than those that occur during deeper stages of sleep.The first stage of sleep is often referred to as light sleep because it is easy to be awakened from this stage.

It usually lasts for about 5-10 minutes, and during this time, the body's temperature begins to decrease, and the heart rate and breathing rate begin to slow down. In addition to these changes, the body may also experience other physiological changes, such as a decrease in blood pressure and a decrease in the production of stress hormones.

The first stage of sleep is an important part of the sleep cycle because it is the stage that helps to prepare the body for deeper stages of sleep. During this stage, the body begins to relax, and the mind begins to slow down. This allows the body to enter deeper stages of sleep, where the brain waves slow down even further, and the body's muscles become even more relaxed. Overall, the first stage of sleep is an important part of the sleep cycle, and it is necessary for the body to enter deeper stages of sleep so that it can rest and rejuvenate.

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Deep sea corals can be hundreds or thousands of years old is true.

Sea corals are  set up deep inside the  ocean and  abysses. They can survive in the shallow water. Deep  ocean corals can be  set up in groups or differently can be  set up collectively in water. They belong to phylum cnidaria and they live for thousands of times. They're  set up deep outside and if not disturbed in their  niche they can live long. Deep-  ocean corals can live for hundreds to thousands of times, feeding directly on  bitsy  creatures.

They have been  set up throughout the ocean on the rocky  ocean  bottom, in  defiles, and on international  pitches. Like their shallow- water cousins, deep-  ocean corals  give  territories for a huge variety of organisms. They grow about one millimeter each time to end up at around 5- 10 centimeters in length in maturity.

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Answer:

About 75%

Explanation:

About 75% will have two ww alleles, while the rest will have Ww alleles.

Answer:

Once mitosis is complete, the cell has two groups of 46 chromosomes, each enclosed with their own nuclear membrane. The cell then splits in two by a process called cytokinesis, creating two clones of the original cell, each with 46 monovalent chromosomes.

Explanation:

Answer:

its true.

Explanation:

have a nice day :)

Having several codons that code for the same amino acid provides redundancy in the genetic code. This means that if there is a mutation or error in the DNA sequence, there is a chance that the correct amino acid can still be coded for by a different codon.

Redundancy is that it allows for the genetic code to be more  and less susceptible to errors or mutations. Additionally, it may allow for faster evolution as slight changes in the DNA sequence can still result in the same amino acid being produced.

Having multiple codons that code for the same amino acid also allows for greater flexibility in the genetic code. For example, some codons may be more commonly used in certain organisms or in specific regions of DNA. Having multiple options for coding the same amino acid can also help to reduce the impact of genetic drift, where certain codons may become more or less common over time due to random chance.

Overall, the redundancy in the genetic code provided by multiple codons that code for the same amino acid is an advantageous feature that helps to ensure accuracy and flexibility in the process of protein synthesis.

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The advantage of having several codons that code for the same amino acid is called "codon redundancy" or "degeneracy" in the genetic code. This redundancy provides protection against mutations, as a single mutation may not result in a change of the amino acid, thus maintaining the proper protein function.

Question 3 does indeed illustrate the redundant nature of the genetic code. There are 64 possible three-letter combinations of nucleotides (called codons) that can be used to code for the 20 different amino acids found in proteins. However, many of these codons are redundant - that is, they code for the same amino acid. For example, the codons UUA, UUG, CUU, CUC, CUA, and CUG all code for the amino acid leucine. At first glance, this might seem like an inefficient use of genetic information. First and foremost, redundancy in the genetic code provides a buffer against mutations. Because many different codons can code for the same amino acid, a mutation in the DNA sequence that changes one codon into another might not have any effect on the resulting protein.

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Here's the ordered description of the gene expression process: 1. DNA in the nucleus serves as a template; 2. mRNA is processed and leaves the nucleus; 3. mRNA becomes associated with a ribosome; 4. Anticodon-codon complementary base-pairing occurs; 5. tRNAs with anticodons carry amino acids to the mRNA and 6. Polypeptide synthesis occurs one amino acid at a time until complete.

In the process of gene expression, the following sentences describe the sequential events:

The correct order of the sentences describing these events would be: 1. DNA in the nucleus serves as a template. 2. mRNA is processed and leaves the nucleus. 3. mRNA becomes associated with a ribosome. 4. Anticodon-codon complementary base-pairing occurs. 5. tRNAs with anticodons carry amino acids to the mRNA. 6. Polypeptide synthesis occurs one amino acid at a time until complete.

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The light bands are called I bands which contains actin .

The striations are the result of highly ordered actin and myosin with sarcomeres ,the basic contractile units of muscle fibres . Sliding of the myosin thick filament along the actin thin filaments within the sarcomeres leads to contraction of striated muscle fibres.

Isotropic bands are light bands of skeletal muscles whereas anisotropic bands are dark bands which contains myosin.

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Developed countries need to replace modern medicines with natural healing herbs because millions of people in China and India are already doing so. This is an example of a(n) bandwagon argument.

The statement "Citizens must support reducing global climate change or all the world's major economies will crash" is an example of a false dichotomy argument. A false dichotomy is a logical fallacy that presents two options as if they were the only ones possible, when in reality there are more alternatives. It can be seen in the above-mentioned statement as it presents only two choices, either citizens must support reducing global climate change, or the world's major economies will crash.

However, there could be other alternatives or solutions to this problem that are not being considered. In contrast, the argument "Developed countries need to replace modern medicines with natural healing herbs because millions of people in China and India are already doing so" is an example of a bandwagon argument.

 A bandwagon argument is a type of logical fallacy that suggests that something is correct or right because a lot of people are doing it. In this case, the argument suggests that developed countries should also switch to natural healing herbs because millions of people in China and India are already doing so.

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Because of the fluctuating rainfall and generally warm temperatures, fragile goods have a tendency to be destroyed.

Fluctuating:

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Answer:

False

Explanation:

Evidence IS the reasoning to back up the claim. EXAMPLE: If you find a diagram of a plant life cycle and it doesn't have captions or any clarifying text the evidence is still valid

Answer:

products of photosynthesis are glucose and oxygen

Answer:

False most of the time.

Explanation:

Vaccines are not a fool-proof way to ensure that you don't get the disease, rather that, if you were to contract the disease, that the effects of said disease may not be as worse as those who have not experienced weakened or dead antigen strands of the virus, as the body's immune system has already created antibodies against the virus.

However, what most of the time implies, is that vaccines are not 100% fool-proof, nor do they work all the time. For example, a well-known incident regarding failures of vaccines is the Cutter Incident, where live polio virus was injected into the vaccines accidently, causing ~20% of all children innoculated with the vaccine to contract polio and suffer from it.

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The function of triglycerides inside the human body is to store fatty acids, which are a significant energy source for cells.

Obesity and metabolic syndrome, a group of diseases marked by excess body fat around the hips, high blood pressure, high blood sugar, high blood sugar, and abnormal cholesterol levels, are two conditions which it increase the likelihood of heart disease and stroke and are frequently accompanied by high triglycerides.

Heart disease risk may increase at levels over 150mg/dl. A risk factor in metabolic syndrome is a triglyceride ratio of 150 mg/dL or above.

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The missing process in the water treatment plant is disinfection.

While it is mentioned that chlorine is added to kill bacteria or microorganisms, it is not explicitly stated that the water undergoes a disinfection step after filtration. Disinfection is a crucial process in water treatment to ensure the elimination of any remaining pathogens or harmful microorganisms that may be present in the water.

Common methods of disinfection include the use of chlorine, chloramine, ozone, or ultraviolet (UV) light. Therefore, the missing process in the water treatment plant is disinfection.

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A vertical inheritance pattern in a pedigree for a disease phenotype likely indicates a rare dominant trait.
In a pedigree, a vertical inheritance pattern occurs when a disease phenotype is passed down from one generation to the next in a direct line of descent, with no skipping of generations.

This pattern is characteristic of a dominant trait, where the presence of a single copy of the mutant allele is enough to cause the disease phenotype. The fact that it is a rare dominant trait suggests that the mutant allele is not very common in the general population. If it were a common recessive trait, for example, we would expect to see more affected individuals among the offspring of unaffected parents.

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Answer:

D: Both A and B.

In gene expression, the goal of translation is to read codons and incorporate corresponding amino acids into a growing polypeptide chain (option C).

Gene expression is the transcription and translation of a gene into messenger RNA and thus into a protein.

It is the process by which information from a gene is used in the synthesis of a functional gene product that enables it to produce end products, protein or non-coding RNA, and ultimately affect a phenotype, as the final effect.

Gene expression consists of two processes namely;

Transcription is the synthesis of RNA under the direction of DNA. It is the process by which the information in a strand of DNA is copied into a new molecule of messenger RNA (mRNA).

On the other hand, translation is the process whereby a strand of mRNA directs assembly of amino acids into proteins within a ribosome.

Therefore, option C is the correct description of the goal of translation.

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Answer: Axon terminals are clusters of enlarged endings of an axon that may contain neurotransmitters.

Axon terminals are clusters of enlarged endings of an axon that may contain neurotransmitters.

At the termination of axons, there are little swellings called axon terminals. Neurotransmitters are often kept there to facilitate communication with other neurons via their synapses, which are typically found at these locations.

These terminals are important for transmitting signals between neurons or from neurons to other cells. They release neurotransmitters, which are chemical messengers that transmit signals across a synapse, or the space between two cells.

The neurotransmitters bind to receptors on the target cell, causing a response. Thus, axon terminals play a crucial role in communication within the nervous system.

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Dentinogenesis imperfecta is a rare, autosomal dominant inherited disease that affects about one in 8,000 people. It causes brownish teeth and rapid crown wear.

In this scenario, a male with dentinogenesis imperfecta and no family history of the disease marries a woman with normal teeth. The probability that their first child will have dentinogenesis imperfecta can be determined using the following steps:

Identify the genotypes of the parents. Since dentinogenesis imperfecta is an autosomal dominant condition, we can denote the disease-causing allele as "D" and the normal allele as "d". The male with dentinogenesis imperfecta would have a genotype of "Dd", as he has the disease but no family history, indicating he is heterozygous. The woman with normal teeth would have a genotype of "dd", as she does not carry the disease-causing allele.

Determine the possible genotypes of their offspring using a Punnett square.

```
 D d
d Dd dd
d Dd dd
```

Step 3: Calculate the probability that their first child will have dentinogenesis imperfecta. Based on the Punnett square, there are two "Dd" genotypes out of four possible genotypes. This means the probability of their first child having dentinogenesis imperfecta is 2/4 or 50%.

In conclusion, the probability that their first child will have dentinogenesis imperfecta is 50%.

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Answer:

A unique feature of the nucleus is that it disassembled and re-forms each time most cells divide.

An increasing blood solute content stimulates osmolarity-detecting cells in the hypothalamic nuclei, notably the supraoptic and paraventricular nuclei.

The control of antidiuretic hormone (ADH), also known as vasopressin, is the responsibility of these cells.Osmoreceptor cells in the hypothalamus notice changes when blood osmolarity rises, a sign of higher solute concentration. The posterior pituitary gland releases ADH as a result of the stimulation of the osmoreceptor cells, which then send signals to the supraoptic and paraventricular nuclei.Purification of urine and a reduction in water loss from the body are both aided by ADH's action on the kidneys to encourage water reabsorption. The release of ADH by the osmoreceptor cells in response to an increase in blood solute concentration contributes to maintaining correct osmolarity and fluid balance.

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For plant growth, each alternative was viewed as a trace element or micronutrient.

For optimal plant growth, trace elements—essential nutrients—are needed in trace levels. Plants mostly need the trace elements boron (B), copper (Cu), iron (Fe), manganese (Mn), molybdenum (Mo), and zinc (Zn) (Zn). These necessary trace elements are frequently present in soil; nevertheless, if the soil is lacking in them, fertilizers must be applied.

The structure and division of cells depend on boron. It helps produce proteins and is crucial for the growth of flowers and fruit. In addition to assisting in the creation of proteins and enzymes, copper also aids in photosynthesis. Iron aids in the formation of chlorophyll, aids in photosynthesis, and aids in plant nutrient uptake.

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Mononucleotide repeats that span an intron do not reduce the accuracy of replication or transcription because they are copied with fidelity during the transcription.

The fidelity of the cell process of transcription makes reference to the accuracy by which the nucleotides in the DNA are used as template to generate a complementary strand in the RNA molecule resulting from this process.

Therefore, with this data, we can see that fidelity of the cell process of transcription is fundamental to reaching the exact complementary sequence.

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Answer:

p^2 + 2pq + q^2 = 1

0.16 + 0.48 + 0.36 = 1 (from the question)

hence, q^2 = 0.36

then, q= square root of 0.36

          = 0.6

Explanation:

self explantory

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Though there can be many levels of consumers, the important distinctions are between primary and secondary consumers.

Primary consumers are the lowest level of the food chain after the producers. The primary consumers will feed on the producers, making them largely herbivores, such as:

The secondary consumers are predators. These will feed on the primary consumers making them carnivorous in nature. These can then be fed upon by tertiary consumers and so on.

Therefore, we can confirm that the main types of consumers in a food chain are that of primary and secondary consumers.

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