A brilliant scientist has come up with a procedure that blocks sensory receptors in our skin from sending signals to the spinal cord and brainstem, so that people no longer have to feel physical pain. As an evolutionary biologist, why would this procedure be concerning to you

Answer:

The roundworm C. elegans

Explanation:

The roundworm C. elegans became the first animal to have its genome sequenced, in 1998.Oct 4, 2017

The roundworm, C. elegans. The roundworm C. elegans got the first animal having genome sequencing, in 1998 Oct 4, 2017.

Whole genome sequencing, often referred to as complete genome sequencing, full genome sequencing, or entire genome sequencing, is the method of determining the complete or nearly complete DNA sequence of an organism's genome all at once.

Sequencing refers to setting the nucleotides in a specific order. A laboratory approach called entire genome sequencing identifies the sequence of nucleotides in an organism's genome all at once.

Therefore, genomic sequencing has been crucial in finding inherited diseases, describing the cancer-causing mutations, and monitoring illness epidemics.

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The following nucleic acid complexes would undergo correction by the DNA mismatch repair system is B. GTGCCCACGATTCAGTGGGC 3' (2%) Antisense 3' CACGGGTGCTAAGTCACCCG-5'

The DNA mismatch repair system corrects errors in DNA sequences. This is because the antisense strand is complementary to the original sequence and has only a 2% mismatch rate, indicating that there are few errors that need to be corrected. Other complexes have higher mismatch rates (6%, 62%, and 28%), making them less likely to be corrected by the DNA mismatch repair system.

The repair system works to maintain the integrity and stability of the genetic information by correcting errors, which helps ensure proper cellular function and prevents potential diseases or mutations. So therefore among the given nucleic acid complexes, the one most likely to undergo correction by the DNA mismatch repair system is B. GTGCCCACGATTCAGTGGGC 3' (2%) Antisense 3' CACGGGTGCTAAGTCACCCG-5'.

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Answer:

C

Explanation:

C:

Answer:

C

Explanation:

c

Answer:

GCCGAAT

Explanation:

Deoxyribonucleic acid, also known as DNA, is a molecule that serves as the genetic material in living organisms. It is a double-stranded molecule made up of nucleotides subunits. The nucleotides, which are Adenine (A), Guanine (G), Cytosine (C) and Thymine (T) on each strand are held together using the COMPLEMENTARY BASE PAIRING RULE.

The complementary base pairing rule states that an Adenine base will always hydrogen bond with Thymine base while Guanine will always bond with Cytosine base i.e. A-T, G-C. Based on the rule, a DNA strand with sequence: CGGCTTA will have a complementary sequence of GCCGAAT on the other strand.

High blood pressure can place increased pressure on the walls of the blood vessels inside the brain, increasing your chances of developing an aneurysm. Also, it forces the heart to work harder to pump blood to the rest of the body. This causes the lower left heart chamber (left ventricle) to thicken. A thickened left ventricle increases the risk of heart attack, heart failure and sudden cardiac death. Moreover, blood vessels damaged by high blood pressure can narrow, rupture or leak. High blood pressure can also cause blood clots to form in the arteries leading to the brain, blocking blood flow and potentially causing a stroke.

So the correct answer is: All of thees choices are correct.

The answers to the questions are as follows:

Question 1:

Response: B speciation

Question 2:

Response: A gene flow

Question 3:

Response: B speciation by geographic isolation

Geographic isolation plays a significant role in shaping the evolution of species. Let's address each question individually:

Question 1:

Geographic isolation may result in:

Response: B speciation

Geographic isolation refers to the physical separation of populations of organisms due to geographical barriers such as mountains, rivers, or islands. When populations become isolated from each other, they experience different environmental conditions and selective pressures. Over time, these distinct environments can lead to genetic and phenotypic differences between the isolated populations. This divergence in characteristics can eventually result in the formation of new species, a process known as speciation. Therefore, option B, speciation, is the correct response.

Question 2:

Geographic isolation causes a reduction in ____, eventually resulting in dissimilarities in a once-similar population of organisms.

Response: A gene flow

Geographic isolation restricts or limits the movement of individuals between different populations. This restriction reduces the gene flow, which is the transfer of genetic material between populations. Gene flow is an important mechanism for maintaining genetic diversity and homogeneity within a population. When gene flow is reduced, isolated populations experience different genetic changes and accumulate genetic variations independently. Over time, these genetic differences can lead to dissimilarities in once-similar populations.

Question 3:

Allopatric speciation is another name for:

Response: B speciation by geographic isolation.

Allopatric speciation refers to the process of speciation that occurs when populations are geographically isolated from each other. The term "allopatric" means "different homeland." In this form of speciation, the physical separation of populations by a geographical barrier prevents gene flow between them. As a result, the isolated populations undergo independent evolutionary changes, leading to the formation of new species. Therefore, option B, speciation by geographic isolation, is the correct response.

In summary, geographic isolation can lead to speciation (Question 1), it reduces gene flow (Question 2), and the process of speciation by geographic isolation is known as allopatric speciation (Question 3).

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Answer:

Polymerization reactions

Explanation:

monomer units condense together to form polymers.

Answer:

1. the first one is 5

2 . the second one is 1 or 2

3. this third one is 4 or 5

4. the fourth one is 1 or 2

Explanation:

ik i did not really help, i need help with this too. bur just try ur best!!

Answer:oxygen

Explanation: Plant photosynthesis require light ,CO2 , Water , light for photosynthesis

Formation of oxygen is the result of photosynthesis.

Answer: Photosynthesis is the process by which plants make their own food utilizing light, water, carbon dioxide, and temperature.

Explanation: Photosynthesis can be impacted by an unfavorable supply of the four factors mentioned above. As such, the following conditions can restrict the ability of a plant to perform photosynthesis:

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A jar placed in a sunny window will get warmest if it is wrapped loosely in Black paper. So, the correct option is (G)

Sunny weather is described as the type of weather where the sky is blue, the grass is bright, and there is a lot of sunlight that is usually warm when the sun comes out, so people in cold climates find it quite looks nice. People may not be so fond of this weather.

When it comes to absorbing heat on sunny days, the color of the fabric is more important than the length or material it is made of, when compared to a black shirt with short sleeves, a long sleeve white shirt can make you feel colder because of all the colors.

So when we wrap a black paper on something like jar it will get warmer as compared to other colour papers.

Thus, a jar placed in a sunny window will get warmest if it is wrapped loosely in Black paper. So, the correct option is (G)

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Answer:

To study them.

Explanation:

They take ash and lava to study the chemicals and stuff that makes it up.

Renin is an enzyme that generally catalyze the reaction by conversion of angiotensinogen to angiotensin I. The correct option is B.

Angiotensin is a chemical in your body that causes blood vessels to constrict. This constriction can raise your blood pressure and make your heart work harder.

Renin catalyzes the conversion of angiotensinogen, a plasma protein, into angiotensin I, a decapeptide (ten amino acids).

Angiotensin-converting enzyme which is present in the serum, converts angiotensin I into an octapeptide referred to as angiotensin II.

Thus, the correct option is B.

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Answer:

The answer is option C "They share a common ancestor"

Explanation:

Homeostasis can simply be defined as the processes which animals needs to undertaken or the conditions animals exhibits to maintain a balanced or stable condition in the body system that are significant for the survival of the animal.

One of the ways animals maintain a stable state is regulating the body temperature through sweat and this process is peculiar to both Humans and Horses because the share a common ancestor considering Homeostasis to be a mechanism for evolution.

Explanation:

i think it is choloroplast

Answer:

A

Explanation:

DNA

Answer:

Option A

Explanation:

The functions of nucleic acids have to do with the storage and expression of genetic information. Deoxyribonucleic acid (DNA) encodes the information the cell needs to make proteins. A related type of nucleic acid, called ribonucleic acid (RNA), comes in different molecular forms that participate in protein synthesis

pls mark brainliest

If you omit the Gram's iodine step while performing the Gram stain, gram-positive cells will most likely be a lighter color or may not appear as strongly stained as they would with the iodine step.

The Gram's iodine step is important in fixing the crystal violet stain in the gram-positive cell walls, leading to their darker and more distinct color when viewed under a microscope. Without the iodine step, the color may not adhere as strongly to the cell walls, resulting in a less visible or lighter-colored stain.
If you omit the Gram's iodine step while performing the Gram stain, gram-positive cells will most likely be colorless in color. This is because the iodine acts as a mordant, which forms a complex with the crystal violet dye, allowing it to be retained by gram-positive cells. Without this step, the dye can easily be washed away, leaving gram-positive cells colorless.

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Answer:

DNA

Explanation:

mutation" typically refers to a change that affect the nucleic acids. In cellular organisms, thesenucleic acids are the building blocks of DNA, and in viruses they are the building blocks of either DNA or RNA.

Answer

glucozo

Explanation:

Hence, a human being can survive for approximately 30 minutes to 2 hours in water at 45 °F.

If a human can live for two hours (120 minutes) unclothed in air at 45 °F, their body temperature will gradually decrease, and they may become hypothermic. Hypothermia is a life-threatening condition that occurs when the body temperature falls below the average temperature of 98.6 °F. At 45 °F, it would take less than two hours for a human to get hypothermia.

However, the human body can survive longer in water than it can in the air at the same temperature. If a human being is submerged in water at 45 °F, the heat from their body will slowly transfer to the water. The human body can lose heat 25 times faster in water than in air at the same temperature. The time a human can survive in water at 45 °F will depend on the individual's body fat percentage, body mass, and overall health. On average, a human can survive for 30 minutes to 2 hours in water at 45 °F, but it may vary from person to person.

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Answer:

it's energy correct

Explanation:

Answer:

Independent Variable- Hours spent watching television or yt.

Dependent Variable- Grades in school

Control Group- Students who don't watch any television or yt.

Constant- The students

hope this helps!

Answer:

Pheno= Type Bo or Type O

Geno = Bo or O

Explanation:

Hetero = Bo

Bo x O in a punnet square would give you the results of 50% of Bo or 50% of O meaning that the child has a 50-50 chance of either being B or O type.

The option that is not a characteristic of the source of rivers and streams is D)Murky Water

Let us discuss more about the characteristics of the source of rivers and streams.

What is the source of a river?

A River is any natural stream of water that flows in a channel with defined banks. Modern usage includes rivers that are multi-channeled, intermittent, or ephemeral in flow and channels that are practically bankless.

The source of the river is the point from where a river starts flowing. It is usually a high point on the land from where water flows downward and begins its journey to join another water body or the sea.

The characteristics of the source of rivers and streams are as follows:

1. Cooler temperatures - Rivers and streams originate in the mountains where temperatures are low and cold. So, the water is usually very cold.

2. High oxygen levels - Because the water comes from a higher altitude, it contains more dissolved oxygen.

3. Freshwater fish - Rivers and streams are the natural habitats of freshwater fish such as trout, bass, and salmon.

4. High speed - As rivers and streams move down the mountains, the speed of the water increases because of gravity.

5. Small width - The width of the river or stream is small as it has just begun its journey from the source.

Thus, From the following options A) high oxygen levels B) freshwater fish C) cooler temperatures and D) Murky waters , Option D) Murky Waters is NOT a characteristic of the source of rivers and streams.

therefore, the correct option is D)Murky waters.

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5 major risk factors for cardiac risk include, obesity, high blood pressure, genetics, eating habits, high cholesterol and lack of exercise.

There are several risk factors for cardiovascular disease, including:

High blood pressure: High blood pressure puts extra strain on your heart and blood vessels, and is a major risk factor for heart attacks and strokes.

High cholesterol: High levels of cholesterol in your blood can increase your risk of heart disease, as it can build up in the walls of your arteries and form plaques that block blood flow.

Lack of physical activity: People who are inactive have a higher risk of heart disease, as physical activity can help to lower blood pressure and improve cholesterol levels.

Obesity: Being overweight or obese can increase your risk of heart disease, as excess weight puts extra strain on your heart and blood vessels.

Unhealthy diet: A diet that is high in saturated and trans fats, salt, and sugar can increase your risk of heart disease.

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Answer:

C. Eukaryotic organelles stop functioning outside of a plant cell.

Explanation:

Because Certain functions are carried out within different structures of the cell. These structures ... Organelles in Eukaryotic Cells. 5. Model 3 – Animal Cell vs. Plant Cell. Plant cells have a cell wall, a large central vacuole, chloroplasts, and other specialized ... Chloroplasts are the organelles that carry out photosynthesis. ... Despite differences in structure and function, all living cells in multicellular organisms .It is these cells, tissues, and organs that carry out the dramatic lives of plants. Plant Cells. Plant cells resemble other eukaryotic cells in many ways. ... are enclosed by a plasma membrane and have a nucleus and other membrane-bound organelles. ... The different types of plant cells have different structures and functions. Hope this helps you!

Answer:

a puppys coat is like soft

and the fathers coat is hard and rough

Explanation:

A ribosome that is unbound within the eukaryotic cell , cytosol is required to translate it. It must be directed toward the plasma membrane by its signal sequence.

Lipid and protein production are largely regulated by the ER. All of the transmembrane proteins and lipids for the majority of the cell's organelles, such as the ER itself, the Golgi apparatus, lysosomes, endosomes, secretory vesicles, and the plasma membrane, are made at this location.

The majority of secreted proteins in eukaryotic cells move from ribosomes into the rough ER via cotranslational translocation. But some proteins, especially those with "weak" signal sequences or short polypeptides, can gain posttranslational access to the ER (Ng et al.

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The mass of \(SrF_2\) that can be prepared from the reaction is 8.39 g.

To determine the mass of \(SrF_2\) that can be prepared from the reaction of 8.05 g of \(Sr(OH)_2\) with 3.88 g of HF, we need to calculate the limiting reactant and use stoichiometry.

First, we determine the number of moles for each reactant using their respective molar masses:

Molar mass of \(Sr(OH)_2\): 120.63 g/mol

Molar mass of HF: 20.01 g/mol

Number of moles of \(Sr(OH)_2\) = 8.05 g / 120.63 g/mol = 0.0668 mol

Number of moles of HF = 3.88 g / 20.01 g/mol = 0.1939 mol

Next, we determine the stoichiometric ratio between \(Sr(OH)_2\) and \(SrF_2\) from the balanced chemical equation:

\(\begin{equation}2\ \mathrm{Sr(OH)_2} + 4\ \mathrm{HF} \rightarrow 2\ \mathrm{SrF_2} + 4\ \mathrm{H_2O}\)

From the equation, we can see that 2 moles of \(Sr(OH)_2\) react with 4 moles of HF to produce 2 moles of \(SrF_2\).

Now, we compare the number of moles of the two reactants to determine the limiting reactant. The reactant that produces the smaller number of moles of \(SrF_2\) will be the limiting reactant:

The stoichiometric ratio shows that 2 moles of \(Sr(OH)_2\) will produce 2 moles of \(SrF_2\).

Given that we have 0.0668 mol of \(Sr(OH)_2\), the number of moles of \(SrF_2\) produced would be 0.0668 mol.

The stoichiometric ratio shows that 4 moles of HF will produce 2 moles of \(SrF_2\).

Given that we have 0.1939 mol of HF, the number of moles of \(SrF_2\) produced would be 0.1939 mol.

Since \(Sr(OH)_2\) produces a smaller number of moles of \(SrF_2\) compared to HF, \(Sr(OH)_2\) is the limiting reactant.

To calculate the mass of \(SrF_2\), we use the molar mass of \(SrF_2\), which is 125.62 g/mol:

Mass of \(SrF_2\) = Number of moles of \(SrF_2\) × Molar mass of \(SrF_2\)

= 0.0668 mol × 125.62 g/mol

= 8.39 g.

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Based on cell structure, metabolism and DNA sequence scientists identify and classify prokaryotic organisms.

Cell is the smallest unit that makes up the body of living things and is the place where the functions of life are carried out. Cells based on their structure are divided into two, namely prokaryotic and eukaryotic cells.

Prokaryotic cells are cells that do not have a nuclear membrane and the cell wall structure consists of peptidoglycan, lipids, and proteins. Prokaryotic cells are single cells that are smaller than eukaryotic cells. Therefore, prokaryotic organisms can only be seen through a microscope and their classification is based on DNA sequence, metabolism, and cell structure.

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