The correct answer is: [A]:
_________________________________________________
" Science is more objective, since it is predominantly based on evidence. "
_________________________________________________
Genes are responsible for:
A. all inherited traits of an organism.
B. all traits of an organism.
C. no traits of an organism.
D. all preferences of an organism.
A. all inherited traits of an organism.
Changing the pendulum design after the first trial was an example of _____________ to solve the problem presented by the teacher. A) designing the model B) evaluating the model C) identifying the problem D) doing research on the problem
Answer:
evaluating the desing
Explanation:
The pia mater layer in the ventricles is rich in blood vessels
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.
Explanation: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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Explain what it means when we say that a nation is an imagined community, and give an example
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.
Based on this information, what type of transport is used for glucose in blood and intestinal cells?
What type of transport is involved in this process?
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.
Why do weather reports always emphasize cyclones and anticyclones?
Bc they are both names, which grammerly u will “ the proper titles
Why do organisms have a common name and a scientific name?
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.
a heart is to _____ muscle as the stomach is to _____.
A tendon; ligament
B involuntary; ligament
C skeletal; smooth
D cardiac; smooth
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 activity of k 40 in a 70 kg human body is estimated to be 120 nci what is this activity in becquerels
The activity of a sample is determined in terms of the number of nuclear disintegrations in a second. The Curie or Ci is a common unit for activity measurement. Bq or Becquerel refers to the SI unit for radiation activity measurement.
The activity of K-40 in 70 kg human body is 120 nCi
The relationship between Curie and Becquerel are as follows:
1Ci = 3.7 × 10¹⁰ Bq
1nCi = 37 Bq
Thus, 120 nCi × 37 Bq / 1nCi = 4.4 × 10³ Bq.
Hence, the activity of K-40 in a 70 Kg human body is 4.4 × 10³ Bq .
The activity of K-40 in a 70 kg human body, given as 120 nCi, is equivalent to 4.44 × 10⁴ becquerels when converted using the appropriate conversion factors.
Explanation:The activity of K-40 in a 70 kg human body is estimated to be 120 nCi. To convert this activity to becquerels, we use the conversion rate where 1 Ci = 3.70 × 10¹⁰ Bq. Therefore, we first convert nanocuries (nCi) to curies (Ci) by dividing by 1 billion (since 1 nCi = 10⁻¹ Ci), and then multiply by the conversion factor.
Here is the step-by-step conversion:
Convert the activity from nanocuries to curies:The activity of K-40 in a 70 kg human body is therefore 4.44 × 10⁴ becquerels.
The cell wall is tough flexible and fairly rigid layer that surrounds some types of cells. It is located outside the cell membrane and provide cells which structural support and protection all but one type of organisms have cells with cell walls what is The cell wall is tough flexible and fairly rigid layer that surrounds some types of cells. It is located outside the cell membrane and provide cells with structural support and protection all but one type of organism have cells with cell walls. what is it?
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.
Explanation:As the cell wall is a tough and rigid but flexible structure.Its main purpose is to give support and structure to plant cell, consequently whole plant.In plant cell there is a large vacuole which is filled with water,it also gives shape to plant cell.But animal cells don't need any support.Because the function of support or structure for animal cells is of bones.That is why animals cells lack cell wall.These "abiotic ingredients" are the inorganic chemicals in Earth's early atmosphere (water, methane, hydrogen, carbon dioxide). Heat, lighting and lack of oxygen caused these inorganic chemicals to react with each other and form simple organic chemicals containing both hydrogen and carbon.
true or false
How are DNA and RNA different in terms of function, # strands, and sugars?
Function # Strands Sugar
DNA
RNA
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.
Name the tripeptide above using the three letter amino acid abbreviations separated by a hyphen (for example: gly-ala-phe).
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.
Explanation: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'.
Explanation: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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A certain species of fish can have either long or short fins. The allele for long fins is dominant over the allele for short fins. A heterozygous, long-finned fish is crossed with a homozygous, short-finned fish. Of the offspring, will have long fins and be , and will have short fins and be
Answer:
A certain species of fish can have either long or short fins. The allele for long fins is dominant over the allele for short fins. A heterozygous, long-finned fish is crossed with a homozygous, short-finned fish. Of the offspring, 50% will have long fins and be heterozygous , and 50% will have short fins and be homozygous.
Explanation: It's correct on Plato
How is co transport used to move glucose into the intestinal epithelial cells
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.
Which organs are involved in your immune system and how they fight off infections.
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.
PLEASE PLEASE HELP IM BEGGING ALL OF YOU: Enzyme inhibitors play an important part in the control of enzyme functions, allowing them to continue, or inhibiting them for a period of time. Which inhibitor affects the initial rate but do not affect the maximal rate?
allosteric
competitive
non-competitive
uncompetitive
Answer:
competitive
Explanation:
Competitive inhibitor affects the initial rate but do not affect the maximal rate.
What do you mean by competitive inhibitor?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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Suppose the parents indicated in the interactive produced 192 peas. Determine the expected number of green and round offspring.
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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Learn more about graffain follicle https://brainly.com/question/4189307 Learn more about human sperm and egg cells https://brainly.com/question/1626319 Learn more about female reproductive tract https://brainly.com/question/9813796Answer 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.
A person has always enjoyed eating tuna fish. Unfortunately, a recent study of the mercury content of canned tuna found that chunk white tuna contains 0.67 ppm hg. The u.S. Environmental protection agency recommends no more than 0.1 μg hg/kg body weight per day. If the person weighs 72 kg, how often may he/she eat a can containing 6 ounces (1 lb = 16 oz) of chunk white tuna so that he/she does not average more than 0.1 μg hg/kg body weight per day?
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
Propose a 5-year plan to phase out cement building blocks an replace them with more eco-friendly mycelium composites.
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.
There was a body found at the crime scene on Willow Lane. Early in the investigation, the temperature of the internal organs needs to be measured in an attempt to determine _____.
how the person was killed
time of death
whether the person died due to a infectious disease
the general routine at any crime scene
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
A person who choose animals for reproduction and keeps records of traits and heredity is called ?
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.
The paper pet population undergoes a mutation that causes ROUND teeth.
If the metamorphic rock marble dissolves in presence of weak acid,which rock probably was changed into marble by the addition of heat and pressure?
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.
The image shows rock strata from different regions on Earth. Which fossil in the strata would best serve as an index fossil?
Fossil would best serve as an index fossil.
F1
F2
F3
F4
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.
What is an Index fossil?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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Approximately 60% of human genes are also found in fruit flies. About 97.5% of human genes are also found in mice. What does this evidence suggest?
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:
The presence of fossils suggests that a rock is MOST LIKELY
A) igneous.
B) intrusive.
C) sedimentary.
D) metamorphic.
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.
What do you mean by Fossils?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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Organic Compounds: 1. Organic molecules are considered organic because they contain what type of atoms? 2. Where is energy stored in a molecular structure? 3. This stored energy in a molecule determines what type of value? 4. What are the 4 organic compounds (macromolecules) that we studied? 5. Proteins are made up of what subunits (monomers)? 6. ______ amino acids are found in the body. How do humans get the other 8? 7. Proteins have the same caloric value as which other organic macromolecule? 8. Carbohydrates are made up of what subunits (monomers)? What is an example? 9. What is the main function of carbohydrates? 10. How are lipids structurally different from carbohydrates? 11. What’s the difference between unsaturated and saturated fat? 12. Glycerol and fatty acids make up which macromolecule? 13. When are lipids used as a food/energy source? 14. Why do lipids have a greater caloric value than carbohydrates or proteins? 15. List all the functions of proteins in the human body: 16. List the functions of lipids/fats in the human body: Chemical Reactions: 17. What are reactants in a chemical reaction? What are products? 18. Which type of reaction breaks down molecules to release energy? 19. Which type of reaction absorbs more energy than it releases in order to build up molecules? 20. What do you call the amount of energy required to start a chemical reaction? 21. Energy is often given off in the form of what? 22. How can temperature affect a chemical reaction? 23. What’s the difference between hydrolysis and dehydration synthesis reactions? Enzymes/Catalysts: 25. How does a catalyst affect a reaction? How does it work? 26. What are enzymes? 27. Enzymes are very specific. How many substrates do they work with? 28. What environmental factors can affect the function of an enzyme? What can happen to the enzyme if you alter the environment? 29. What is happening in the graphs below/ what does each show you? a. b. 30. Define each of the following terms and describe how that term applies to living things. Activation energy Enzymes Reactants/substrates Products Bonds
Please help me answer asap
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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is a sweet potato hydrophillic or hydrophobic
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:)