What is one risk we face when humans use artificial selection to change species.

Physical properties are characteristics that can be observed without altering a substance's identity, such as magnetism, temperature, and mass. Chemical properties, on the other hand, involve a change in the substance's chemical composition, such as reacting violently with sodium or producing a different gas when heated.

The listed properties can be categorized as either physical properties (PP) or chemical properties (CP) as follows:

A physical property is often described as a characteristic which can be observed without changing the substance's identity, such as its magnetism, malleability, or temperature. On the other hand, a chemical property involves a change in the substance's chemical composition, as when it reacts with sodium or produces a different gas when heated.

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The immune system is made up of a network of cells, tissues, and organs that work together to protect the body. White blood cells, also called leukocytes (say: LOO-kuh-sytes), are part of this defense system.

When the body is fighting infection, lymph nodes can become enlarged and feel sore. Spleen: The largest lymphatic organ in the body, which is on your left side, under your ribs and above your stomach, contains white blood cells that fight infection or disease.

An imagined community is a concept developed by Benedict Anderson in his 1983 book Imagined Communities, to analyze nationalism. Anderson depicts a nation as a socially constructed community, imagined by the people who perceive themselves as part of that group.

Cardiac muscle also known as heart muscle is one of three kinds of vertebrate muscles. It is a striated and an involuntary muscle, which forms the prime tissue of the walls of the heart. The cardiac muscles help in contraction of heart to pump blood.  

On the other hand, the smooth muscle is found inside the walls of the internal organs and the compositions like the stomach. The stomach has three layers of smooth muscles, that is, the outer longitudinal, the middle circular, and the inner oblique muscles.  

Therefore, the heart is to cardiac muscles, and the stomach is to smooth muscles.  

The specific tripeptide wasn't provided but an example tripeptide consisting of glycine, alanine, and phenylalanine would be named gly-ala-phe. A peptide bond is a chemical bond between amino acids, forming dipeptides, tripeptides and so forth.

The question doesn't provide a specific tripeptide sequence to name. However, if we were given a hypothetical example, let's say the tripeptide consisted of glycine, alanine, and phenylalanine, then according to the three-letter amino acid abbreviation, it would be named as gly-ala-phe.

As detailed, the structure of a tripeptide involves three amino acids chemically bonded together by the reaction of the carboxylic acid group of one molecule with the amine group of another, forming what is called a peptide bond.

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The name of a tripeptide depends on constituent amino acids, named from the N-terminal (start) to the C-terminal (end) using their three-letter abbreviations. For example, a tripeptide composed of Valine, Leucine, and Serine will be named 'Val-Leu-Ser'.

The question didn't provide a specific tripeptide to name, but based on the information given, here's how you would approach this. Amino acids in a peptide are named from the N-terminal (start of the peptide, free amino group) to the C-terminal (end of the peptide, free carboxyl group). Each amino acid is known by its three-letter abbreviation, for example, 'gly' for glycine, 'ala' for alanine, and 'phe' for phenylalanine.

Therefore, if you had a tripeptide made up of, for instance, valine (Val), leucine (Leu), and serine (Ser), you would name it 'Val-Leu-Ser'. This essentially involves naming each amino acid in the order they appear in the tripeptide chain.

It's also important to remember that when naming a peptide, the N-terminal amino acid comes first. So in our example, Valine is the N-terminal amino acid, and serine is the C-terminal amino acid.

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According to the Food and Drug Administration, five of the most generally consumed fish, which are low in mercury content are canned light tuna, shrimp, catfish, pollock, and salmon. However, another commonly consumed fish, that is, white tuna or albacore exhibits more mercury in comparison to the light canned tuna.  

In the given case, mass of tuna is 6 oz = 6 × 28.3495 = 170.097 grams

Maximum mass of Hg permitted for 72 Kg body weight per day will be,  

= 72 × 0.1 = 7.2 micrograms in a day

The concentration of white tuna in Hg = 0.67 ppm = 0.67 × 10^ (-6)

Mass of Hg = concentration × mass

= 0.67 × 10 ^ (-6) × 170.97

= 113.96 micrograms

Time between the consumption = 113.96 ÷ 7.2

= 16 days, that is, once in every 16 days.  

Answer:

The answer is in 16 days.

Explanation:

Please see the solution in the attached Word document

C) sedimentary

since sedimentary rock doesn't change igneous rocks are usually formed from hot lava ,and metamorphic are like rocks mixed along that have been affected by either temperature or pressure and intrusive rocks along with intrusive

The presence of fossils suggests that rock is most likely Sedimentary.

The fossils are the dead organic remains in the soil over a long period of time. It is preserved evidence of life from a past geological age.

Almost all fossils are preserved in sedimentary rock. This is because the sedimentary rock is created as layers of sediment pile on one another and are compressed together.

Therefore, the presence of fossils suggests that rock is most likely Sedimentary.

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the time of death because if a person is still warm the death happened recently but if the person is cold it most likely happened awhile back

first convert the ft into meters so

11ft = 3.35m

15ft = 4.6m

3.35m x 4.6m = 15.41

15.41m^2

15.33 square meters.

first calculate the area of the room in square feet by multiplying the length and the width. 11ft times 15ft gives us 165 sq ft.

Now, we need to convert this area into square meters. Given that 1 meter equals 3.28 feet, we square this conversion factor to get the conversion factor for square meters, which is 1 sq meter = 10.76 sq ft.

Finally, divide the area in square feet (165 sq ft) by the conversion factor (10.76). Therefore, you need about 15.33 square meters of carpet.

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Co-transport system of intestinal epithelial cells. Glucose then moves into the blood through the permease in the membrane between the cell and the blood. Thus, ATP is used as an energy source to drive Na+ out of the cell, resulting in glucose transport from the intestine to the blood.

Final answer:

Glucose is transported into intestinal epithelial cells via secondary active transport involving the SGLT1 cotransporter, which uses the energy from a sodium ion gradient maintained by the Na+/K+-ATPase pump. This pump exchanges sodium for potassium with ATP hydrolysis, allowing glucose to accumulate in the cell and then diffuse into the bloodstream through the GLUT2 transporter.

Explanation:

Co-transport of glucose into the intestinal epithelial cells is facilitated by a mechanism known as secondary active transport. This process involves the sodium-glucose cotransporter 1 (SGLT1), which simultaneously transports glucose along with sodium ions into the cell against the glucose concentration gradient. The energy for this movement is derived from the sodium ion gradient established by the Na+/K+-ATPase, which pumps sodium out of the enterocyte into the bloodstream in exchange for potassium ions, utilizing ATP. Once inside the cell, glucose then passively diffuses out into the bloodstream through the GLUT2 transporter located in the basolateral membrane. As this transport requires ATP to maintain the sodium gradient, it is termed active transport.

It is essential to maintain a low concentration of Na+ inside the cell to continue this process. Hence, the Na+/K+-ATPase pump expels Na+ ions out of the cell into the blood plasma, maintaining the gradient that powers the SGLT1-mediated glucose transport from the lumen of the gut into the cell.

The number of the offspring produced in the dihybrid cross is 192.

In dihybrid cross, the ratio of the plants obtained in the F2 generation is 9: 3: 3: 1.

Thus, yellow round offspring is 9/16, green round offspring is 3/16, yellow wrinkled offspring is 3/16, and green wrinkled offspring is 1/16.

Thus, the number of green and round offspring produced can be calculated as:

Green round seed = 3/16

= 3/16 × 192

= 576/16

= 36

Thus, out of 192 peas, 36 will be green and round.

Suppose the parents indicated in the interactive produced 192 peas. Then the expected number of green and round offspring is thirty-six.

Further Explanation:

A recessive trait is defined as a trait that gets expressed by an individual when they show a homozygous recessive condition. This means that if an individual showing a recessive trait will definitely possess both the recessive alleles for that trait as a recessive trait gets concealed by the presence of allele for the dominant trait.

The monohybrid cross is an experiment between the first generation organisms that differ in only one trait. The resultant ratio of the f-1 generation is 1:2:1. A Punnett square mainly used to predict the possible genetic outcomes of a monohybrid cross. Mainly the dihybrid cross occurs when there are two traits are present.

The total number of offspring produced in the dihybrid cross is 192. In the dihybrid cross, the ratio of the plants obtained in the F-2 generation is 9:3:3:1.

Now, yellow round offspring is 9/16

Green round offspring is 3/16

Yellow wrinkled offspring is 3/16

Green wrinkled offspring is 1/16.

Thus, the number of green and round offspring produced can be calculated as:

Green round seed = 3/16

= 3/16 × 192

=576/16

= 36

Thus, out of 192 peas, 36 will be green and round.

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Answer Details:

Grade: High School  

Subject: Biology

Chapter: Mendelian Inheritance

Keywords:

Generation, plant, pea, monohybrid, dihybrid, cross, offspring, trait, present, green, round, yellow, wrinkled, dominant, recessive.

DNA is double-stranded while RNA is single stranded.  DNA contains thymine base whereas RNA contains uracil base.  RNA contains a ribose sugar while DNA contains a deoxyribose sugar.  The function of DNA is long term storage of generic info.  The function of RNA is for translating and transferring genetic code from the DNA to ribosomes to create proteins.

Answer:

competitive

Explanation:

Competitive inhibitor affects the initial rate but do not affect the maximal rate.

Competitive inhibition is interruption of a chemical pathway owing to one chemical substance inhibiting the effect of another by competing with it for binding or bonding.

A competitive inhibitor is any molecule that can bind to the active site of an enzyme with sufficient affinity such that it can compete with the enzyme's natural substrate and reduce enzyme activity as a result.

Competitive enzyme inhibitors possess a similar shape to that of the substrate molecule and compete with the substrate for the active site of the enzyme. This prevents the formation of enzyme-substrate complexes.

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The sweet potato cells have a hydrophilic surface (because of the phospholipids on their cell membranes). But I don't think you can refer an object as hydrophilic or hydrophobic because an object can neither attract or repel water or oil, these stuffs usually happen in the molecular level:)

This evidence suggest that all three living creatures that are mentioned have a common ancestor, even though they have been split into different types of groups of living organism millions of years ago.

Science suggests that all of the living organisms on the planet have a common ancestor. Since we are talking about a common ancestor that lived few hundred million years ago, the living organisms split into different groups, and they do not resemble each other nowadays. The fruit fly is an insect, and the humans and mice are mammals, so they are into totally different groups, and it is easy to see by the genetic evidence that they are very distantly related, but the humans and mice are much more closely related because they belong to the same super family, and their connection is much more recent.

Answer:

a

Explanation:

Answer:

F3

Explanation:

An index fossil is a fossil of an organism which lived at only one time during the evolutionary history. The index fossils are obtained from rock of one particular evolutionary time zone.  In the given image, F3 fossils are present in same strata or layer of the rock in all three regions. They are also not present in any other layer of any region. Hence. F3 would serve as best index fossil.

F3 is the appropriate option which will best serve as an index fossil and is denoted as option C.

These are fossils which are used to define and identify geologic periods and are obtained from rock of one particular evolutionary time zone.  

In the given image, F3 fossils are present in same strata of the rock in all three regions which is why it will best serve as an index fossil.

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Pia mater (soft inner layer of the dural membrane system) The pia mater, which contains vessels, is the innermost layer of the three meningeal membranes. ... Furthermore, it creates the choroid plexus, a network of bold vessels, which enter the brain ventricles and produce the cerebrospinal fluid (CSF).

The pia mater, a delicate layer rich in blood vessels, covers the brain and spinal cord. Conversely, ventricles are fluid-filled compartments where cerebrospinal fluid (CSF) is produced by the choroid plexus. Both pia mater and ventricles are essential parts of the brain's nourishing and protective mechanisms.

The pia mater is a thin, delicate layer that directly covers the brain and spinal cord. It is rich in blood vessels that nourish the central nervous tissue. The ventricles, on the other hand, are fluid-filled compartments in the central nervous system (CNS) where a tissue called the choroid plexus produces cerebrospinal fluid (CSF).

The pia mater and the ventricles are part of the brain's protective and nourishing mechanisms. The brain floats in CSF, which guards it like a cushion, helping to make it neutrally buoyant. Moreover, the CSF also circulates chemical substances throughout the brain and into the spinal cord.

The ventricles and their choroid plexuses are a key component of the circulation of cerebrospinal fluid, which also contributes to waste removal from the CNS. The choroid plexuses are structures where ependymal cells line blood capillaries filtering blood to produce CSF in the four ventricles of the brain.

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Final answer:

A person who chooses animals for reproduction and keeps records of traits and heredity is called a breeder.

Explanation:

The person who chooses animals for reproduction and keeps records of traits and heredity is called a breeder. Breeders carefully select animals with desirable traits and breed them to produce offspring with those traits. They also keep detailed records of the traits and heredity of the animals they work with.

Ok here we go:

Science starts with observing which leads to hypothesis, which is tested by experiments.

The other two i am not sure of. Hope i was a help to you. One thing you can do to figure out the other two is google: "what type of science includes medicine and envirnmental science", and do the same for the other one.

The subject of this question is ecology. The concept map involves filling in the correct words or phrases in each box. The sequence starts with observing, followed by testing, and ends with organizing data.

The subject of this question is ecology, which is the study of the relationships between organisms and their environments. In the given concept map, the word or phrase that fits in each box is:

XL is either ecology, chemistry, or life science.

Starts with observing.

Leads to testing.

Is tested by experimentation or data collection.

Followed by organizing data.

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Answer: Animals.

Explanation:

Animals are the type of organisms that have cells without any cell wall.

Cell walls are found in plant cells that contain the cell in them, maintaining their shape and preventing them from any sort of damage. But its main purpose is basically to provide support to the plant structure to stand upright.

While animals have bones so they do not need any cell walls in their cells to support their structure.

The one type of organisms which don't have cell wall are animals.

The correct answer is dipole-dipole interactions and London dispersion forces (induced dipole-dipole forces).

Dipole-dipole interaction is attractive force which occurs between the positive end of one polar molecule and the negative end of another polar molecule.

London force is temporary force and it is the weakest intermolecular force. It is an attractive force that occurs when the electrons (e-) in two adjacent molecules occupy positions that make the atoms form temporary dipoles.

London forces the ion-ion interactions and dipole interactions and hydrogen bonding are all the intermolecular interactions that could occur in a container of only methyl benzoate. These are all the forces which are between the molecules. It may be attractive or repulsive forces between molecules or neighboring particles.

The reason that organisms have common and scientific names is because there has to be a universal name for all organisms in theory.

Common names can be many different things, dependent on the area of the world you live in,  Scientific Names are part of a series called binomial nomenclature which is a universal way to name all organisms.  For example, a goose will be called anser anser across the world, then it changes some when you go into breeds, but for the most part, you can get by with that name.  

Answer:

Mycelium  is the part of fungus consisting of a mass of branching thread like hyphae. It makes up the body of the fungus living on a particular substrate. Mycelium when dried can be a strong material which can be water, fire and mold resistant. Mycologist Philip Ross found out that dried mycelium can be grown and used for making building blocks. These mycelium bricks are organic and compostable. Their consistency is also stronger than concrete bricks. These mycelium bricks can be painted. These are bulletproof and can withstand extreme temperatures. When their use is over they can be composted therefore, biodegradable and does not harm nature in anyway. Hence, they are eco-friendly. Their durability and strong structural construct can be used for replacing them with other chemically synthesized building material. A five year plan with eco-friendly mycelium bricks can result when fungus mycelium bricks is considered only  mandatory material for building construction purpose. Some durable and high tensile strength material if added in them can improve their quality provided that they are completely compostable.

1. flagella

2. pilus

3. nucleoid (DNA)

4. plasma membrane

5. ribosome

6. cell wall

7. cell wall

In a bacterial cell, the flagella enable movement, pili aid in adhesion and genetic transfer, the nucleoid houses DNA, the plasma membrane regulates transport, ribosomes synthesize proteins, the cell wall provides structure, and the capsule enhances protection and virulence.

1. Flagella: Flagella are whip-like structures on the bacterial cell's surface responsible for locomotion. They rotate to propel the cell through its environment, allowing it to move towards favorable conditions or away from harmful ones.

2. Pilus: Pili (plural form: pilus) are hair-like appendages found on some bacterial cells. They serve multiple functions, including adherence to surfaces or other cells. Conjugation pili facilitate the transfer of genetic material between bacteria.

3. Nucleoid (DNA): The nucleoid is the region within the bacterial cell where the genetic material, a single circular DNA molecule, is located. Unlike eukaryotic cells, bacteria lack a membrane-bound nucleus.

4. Plasma Membrane: The plasma membrane is a semi-permeable barrier surrounding the cell, controlling the passage of molecules in and out. It plays a vital role in nutrient uptake and waste elimination.

5. Ribosome: Ribosomes are cellular structures responsible for protein synthesis. Bacterial ribosomes are smaller than those in eukaryotic cells and are crucial for the production of enzymes and other proteins.

6. Cell Wall: The cell wall provides structural support and shape to bacterial cells. It also helps protect the cell from osmotic pressure changes and is a target for antibiotics like penicillin.

7. Capsule: The capsule is a protective layer surrounding some bacterial cells. It helps evade the host immune system by preventing phagocytosis and enhances bacterial pathogenicity.

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The correct answer is: [A]:

_________________________________________________

      " Science is more objective, since it is predominantly based on evidence. "

_________________________________________________

Sugar Glucose is transported by Active Transport from the gut into Intestinal epithelial cells.

Hope this helps.

Davismr00~

Answer:

Transport active.

Explanation:

Glucose is the main source of cellular energy. It is captured by most cells in the body through carrier proteins present in the plasma membrane in favor of their concentration gradient. On the other hand, in intestinal epithelial cells and renal tubules, glucose is captured against its concentration gradient using apical membrane transport proteins and then exits the cell through the basement membrane to enter the bloodstream, in favor of its concentration gradient using membrane carriers known as GLUT's.

Glucose uptake by intestinal epithelial cells always occurs by active transport because it uses a membrane protein in transport even when it is in favor of the concentration gradient.

The answer is limestone.  Hope I helped you out!

Answer:

Limestone

Explanation:

Marble is a metamorphic rock which is formed, when the sedimentary rock named limestone is subjected to extreme pressure and temperature condition. During this process of metamorphism, the calcite minerals present in the rock limestone undergoes the process of re-crystallization, thereby producing a much more denser and higher grade rock where the calcite crystals alters into more forcibly equigranular crystals.

This is how limestone after going through the process of metamorphism, changes into a metamorphic rock named marble.

Answer:

evaluating the desing

Explanation: