Evolution and the influenza virus
Complete the following paragraph to describe how an animal virus may evolve into a strain that is harmful to humans.

The "exfoliation" or "shedding" of milk teeth is the name of the procedure.

The primary and permanent tooth sets make up the human dentition. Maxillary (upper) and Mandibular (lower) are the two opposing arches in which teeth are arranged. These can be split into their left and right halves along the midline (mid-sagittal plane).

Four Different Teeth Types and Their Purposes

The majority of individuals have 32 permanent adult teeth, which can be classified into four groups:

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Answer:

carbon dioxide

Explanation:

The evidence for evolution in action is considered to be All are evidence for evolution. Hence, the last option is correct.

It is the process that includes the modification with respect to the inherited trait of an organism for adapting the environmental conditions.

Like for antibiotic resistance, it represents the bacteria.

Mosquitoes should become resistant to pesticides.

And, if there are distinct domesticated breeds of dogs so the same should be customized.

Hence, the last option is correct.

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Asexually reproducing aliens would be more susceptible to the NASA-created virus. Option A is correct.

This is due to the fact that asexual reproduction creates genetically identical offspring through the process of mitosis without the transfer of genetic material from one person to another. Because of this lack of genetic diversity, any mutation or genetic change caused by the virus would have an impact on the entire population. On the other hand, through meiosis and fertilisation, sexually reproducing aliens create offspring with distinctive genetic material. Due to the fact that different people would react to the virus differently due to genetic diversity, it would be more challenging for the virus to infect the entire population. As a result, the virus would spread more readily and have a greater effect on the asexually reproducing aliens.

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Option(B) Ureter is the correct option.

The ureter is a vital part of the urinary system in humans. It is a muscular tube that connects the kidneys to the urinary bladder. Each human has two ureters, one attached to each kidney, and they play a crucial role in the transportation of urine from the kidneys to the bladder.

The primary function of the ureter is to carry urine that is produced in the kidneys to the urinary bladder for storage before it is eliminated from the body through urination. The ureters accomplish this by using peristalsis, a wave-like muscular contraction, to propel urine along their length.

The ureters have a complex anatomical course. They originate from the renal pelvis, which is the funnel-shaped structure that collects urine from the kidneys. From there, they extend downward, crossing over the brim of the pelvis and passing behind the peritoneum, the membrane lining the abdominal cavity.

The efficient functioning of the ureters is essential for the proper elimination of waste products and maintenance of fluid balance in the body. Any obstruction or abnormality in the ureters can lead to conditions like kidney stones, urinary tract infections, or urinary reflux.

In summary, the ureters are muscular tubes that transport urine from the kidneys to the urinary bladder. They rely on peristaltic contractions to propel urine, and their structure and positioning help ensure unidirectional flow.

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Option D is the most energy for the eco system. The producers are located in the base of the pyramid, which is also its greatest level.

The amount of energy declines and the levels get smaller as you climb the pyramid to reach primary, secondary, and tertiary consumers through the trophic levels.

Producers are organisms like plants, algae, and some bacteria that operate as the main energy source by converting light or chemical energy into food like glucose. Producers play a significant part in every ecosystem. Both directly and indirectly, they are necessary for both herbivores and carnivores.

As a result, Option c's producers—organisms like algae and green plants that can manufacture their own food using the energy of the sun—would be the source of the greatest energy in an ecosystem.

The food chain's top trophic level contains the greatest energy. The producers, which include all photosynthetic creatures, are found at this level. Moreover, occasionally photosynthetic bacteria and protists are included in this. These organisms convert solar energy into organic sugar by using it.

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The amino acid sequence for the codons AUU, GUA, GUC, and CAGC is Isoleucine, Valine, Valine, and Glutamine, respectively.

1. Start by dividing the given RNA sequence, AUUGUAGUCCAGC, into individual codons. Each codon consists of three nucleotides.

  AUU GUA GUC CAG C

2. Refer to the genetic code to determine the corresponding amino acid for each codon. The genetic code is a set of rules that translate a nucleotide sequence into an amino acid sequence.

  AUU - Isoleucine (Ile)

  GUA - Valine (Val)

  GUC - Valine (Val)

  CAG - Glutamine (Gln)

  C - Stop codon (does not code for an amino acid)

3. Thus, the amino acid sequence for the given RNA sequence AUUGUAGUCCAGC is Isoleucine (Ile), Valine (Val), Valine (Val), and Glutamine (Gln).

Please note that the provided sequence ends with the codon C, which is a stop codon and does not code for an amino acid. Therefore, the amino acid sequence ends with the codon CAG.

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Answer:

DNA is considered a universal genetic code because every known living organism has genes made of DNA.All organisms also use DNA to transcribe RNA, and then they translate that RNA into proteins. Every living organism uses that same system.

C

Explanation:

DNA is called the universal genetic code because it is the molecule responsible for storing genetic information in all living organisms.

Not just that, DNAs in all organisms are similar such that they all contain purine and pyrimidine bases, phosphate groups, and deoxyribose sugars.

Information on DNA is transcribed into their respective genetic codes in mRNA and these codes are then translated to their respective amino acids during protein synthesis.

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Answer:

b

Explanation:

because it is the least inclined

The diagram shows a transform fault and it is a likely result of slippage along this fault? is A. Seismic waves

A likely result of slippage along a transform fault is seismic waves (option A). A transform fault is a type of tectonic plate boundary where two plates slide past each other horizontally. As the plates move, stress builds up along the fault line, and when it exceeds the strength of the rocks, slippage occurs, releasing accumulated energy.

During the slippage, the rocks on either side of the fault quickly move relative to each other. This rapid movement generates seismic waves, which are vibrations that propagate through the Earth's crust. These seismic waves travel outward from the fault in all directions, causing ground shaking and vibrations.

Seismic waves are responsible for earthquakes, and their intensity and magnitude can vary depending on factors such as the amount of slippage, the depth of the fault, and the strength of the rocks involved. The seismic waves can result in ground shaking and can potentially cause damage to buildings, infrastructure, and human lives, depending on their magnitude and proximity to populated areas. Therefore, seismic waves are a likely result of slippage along a transform fault. Therefore, Option A is correct.

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Answer:

fals..................

Glycolysis is a metabolic pathway that breaks down glucose into two molecules of pyruvate. There are a total of 10 steps in glycolysis, and most of these steps are reversible by the same enzyme. However, there are three steps in the pathway that cannot be reversed by the same enzyme.
a) The general terms used to describe these steps are "irreversible steps" and the enzymes catalysing these steps are called "irreversible enzymes".
b) The three irreversible enzymes in glycolysis are hexokinase, phosphofructokinase, and pyruvate kinase. Hexokinase catalyses the first step in glycolysis, where glucose is converted to glucose-6-phosphate. Phosphofructokinase catalyses the third step in glycolysis, where fructose-6-phosphate is converted to fructose-1,6-bisphosphate. Pyruvate kinase catalyses the tenth and final step in glycolysis, where phosphoenolpyruvate is converted to pyruvate.
c) In gluconeogenesis, the three irreversible steps in glycolysis are reversed by different enzymes. The first step is reversed by glucose-6-phosphatase, the third step is reversed by fructose-1,6-bisphosphatase, and the tenth step is reversed by phosphoenolpyruvate carboxykinase.
d) Glycolysis and gluconeogenesis cannot take place in the same tissue at the same time because they are regulated by different enzymes and are subject to different levels of control. If both pathways were to occur at the same time in the same tissue, it would result in a futile cycle where glucose is converted to pyruvate and then back to glucose, with no net gain or loss of energy. However, glycolysis and gluconeogenesis can take place in two different tissues at the same time because different tissues have different energy requirements and metabolic needs.

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Answer:

True

Explanation:

Answer:

The initial amount, 1.3 million = 1,300,000 is the 100%.

now, 640,000 is a given percentage (lower than 100%) of that.

How we can find it?

suppose that 640,000 represents an x%.

Then we have that the quotient between the actual quantities and the percentages must be the same

(640,000/1,300,000) = x%/100%

x% = (640,000/1,300,000)*100% = 49.23%

Then the percentage declined is:

100% - 49.23% = 50.77%

The other question can not be answered with the given information.

In order to calculate the percentage decline over the period of time between 1979 and 2007, the general formula for percentage change will be applied. This is as follows:

\(\frac{B-A}{A} \times 100\)

where:

A = final value

B = initial value

In this problem:

A = Initial population = 1,300,000

B = Final population = 640,000

Applying this formula to the problem, the percentage change in population between 1979 and 2007 is as follows:

\(\frac{B-A}{A} \times 100\\\\\frac{640,000 - 1,300,000}{640,000} \times 100 \\\\\frac{-660,000}{1,300,000} \times 100\\\\= \frac{-66,000,000}{1,300,000} \\\\= -50.769 \%\\= 50.77\% \\Note\ that\ the\ minus\ sign\ denotes\ a\ decline.\)

B: The change in range over this period of time is the difference between the final population and the initial populations, which is calcalated thus:

B - A (as explained above)

= 640,000 - 1,300,000 = - 660,000 (the minus sign still shows a decline)

While the percentage shows a "relative change" in terms of percentage, the change in range shows an absolute or actual change.

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Answer:

Tissue

Explanation:

Answer:

The answer is C. Tissue

The phrase that best represents the net flow of gases involved in photosynthesis is "carbon dioxide in, oxygen out."

During photosynthesis, plants utilize sunlight, water, and carbon dioxide to produce glucose and oxygen.  The process primarily occurs in the chloroplasts of plant cells, specifically in the green pigment called chlorophyll.

Carbon dioxide (\(CO_2\)) enters the plant cells primarily through tiny openings called stomata, which are mainly located on the underside of leaves. Stomata open during the day to allow carbon dioxide to diffuse into the leaf cells, where it combines with water and sunlight to initiate the process of photosynthesis.

Inside the chloroplasts, carbon dioxide is converted into glucose, a form of stored energy that the plant can use for growth and development. Simultaneously, oxygen (\(O_2\)) is produced as a byproduct of photosynthesis. It is released back into the atmosphere through the same stomata during the day.

The oxygen released is a vital component for most living organisms on Earth, including humans, as it is used for respiration.Overall, the net flow of gases during photosynthesis involves the uptake of carbon dioxide from the atmosphere and the release of oxygen back into the environment.

This process plays a crucial role in maintaining the balance of gases in the Earth's atmosphere, as it contributes to reducing the concentration of carbon dioxide and increasing the amount of oxygen available for other organisms.

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The complete question is :

During photosynthesis, different gases move in and out of plant cells. Which phrase best represents the net flow of gases involved in photosynthesis?

LeBron James has an impressive vertical leap of 44 inches, Michael Jordan holds the record with a vertical leap of 48 inches. Here the correct answer is although, which is in option C. Hence, option C is the correct answer.

The sentence presents a comparison between LeBron James and Michael Jordan's vertical leaps, stating that LeBron James has an impressive leap of 44 inches, while Michael Jordan holds the record with a vertical leap of 48 inches. The word "Although" is the most appropriate choice here, as it introduces a contrast between the two athletes' vertical leap achievements. Hence, option C is the correct answer.

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Answer:

true true true true true true true

Answer:

Enzymes create chemical reactions in the body. They actually speed up the rate of a chemical reaction to help support life. The enzymes in your body help to perform very important tasks. These include building muscle, destroying toxins, and breaking down food particles during digestion.

Explanation:

Laetiporus sulphureus, or chicken of the woods, is a multicellular organism in the Fungi kingdom. It obtains its nutrition as a heterotroph by decomposing dead wood. It is known for its bright color and spongy texture when cooked.

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Answer:

2.04 moles of C atoms

Explanation:

The number of moles of C atoms can be calculated using Avogadro's number, which is approximately 6.02 x 10^23 atoms per mole.

To find the number of moles of C atoms in 1.23 x 10^24 atoms, we need to divide the number of atoms by Avogadro's number:1.23 x 10^24 atoms / 6.02 x 10^23 atoms/mole = 2.04 moles

Therefore, if you have 1.23 x 10^24 atoms of C, you would have 2.04 moles of C atoms.

Answer:

The cosmological principle makes assumptions that provide scientific guidelines to enable its study. Mr. Biggins believes that the universe has been and always will look and be structured the same throughout all time.

Explanation:

The cosmological principle makes assumptions that provide scientific guidelines to enable its study. Mr. Biggins believes that the universe has been and always will look and be structured the same throughout all time.

The three processes in which rooftop garden reduces heat absorbed are :

Rooftop gardens are simply gardens planted on top of roofs, they are mostly designed to grow certains types of plants, Rooftop gardens provide certain essential advantages to buildings where they are planted such as :

some of the ways rooftop gardens reduces heat absorbed by the building involves transevaporation as well

Hence we can conclude that the three processes as a slisted above

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Answer:

electrons

Explanation:

Statements 1 and 3 are true, while statements 2 and 4 are false.The first energy transformation in the scenario is chemical energy to kinetic. - True.

The archer converts chemical energy stored in their muscles into kinetic energy when they release the string and propel the arrow forward.From the time the archer draws the bow until the thud is heard, entropy increases in the universe. - False. Entropy is a measure of disorder or randomness in a system. In this scenario, the archer's actions do not necessarily lead to an increase in entropy.

The energy of the arrow at the end of the scenario is equal to the energy exerted by the muscles of the archer. - False. Energy is conserved in a closed system, but some energy is lost as heat and sound during the process. Therefore, the energy of the arrow at the end may be less than the energy exerted by the archer's muscles.

When the arrow sticks into the tree, the original energy has all been used up. - False. Energy is not created or destroyed but rather transformed from one form to another. Some of the initial energy from the archer's muscles is transferred to the arrow's kinetic energy, but it is not entirely used up.In summary, statements 1 and 3 are true, while statements 2 and 4 are false.

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Choice A. A - T G - C correctly shows the base pairing rules in DNA.

The base pairing rules in DNA makes reference to a series of rules for which Adenine is always paired with Thymine by two hydrogen bond, while Guanine always pairs with Cytosine by three hydrogen bonds.

Therefore, with this data, we can see that the base pairing rules in DNA is based on the matches between different nucleotides in DNA, which depends on the chemical interaction of their nitrogen bases.

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Answer:

I think it is a negative result.

Explanation: