Answer:
Explanation:
A polar molecule has a net dipole as a result of the opposing charges (i.e. having partial positive and partial negative charges) from polar bonds arranged asymmetrically. Water (H2O) is an example of a polar molecule since it has a slight positive charge on one side and a slight negative charge on the other.
what material has the greatest density
Answer:The answer is osmium
Identify the rectangular solid that represents the cell with the smallest amount of plasma membrane per volume of cytoplasm
Answer:
Solid 1 has the smallest amount of plasma membrane per volume of cytoplasm
Note: The question is incomplete. The attachment below gives the complete question
Explanation:
The outermost surface of a cell is bounded by the plasma membrane which functions to maintain the integrity of the cell as well as control the movement of particles in and out of the cell.
The ratio of the surface area of a cell to the volume of the cell indicates how big the cell is. When the surface area to volume ratio is small, the cell is very big, but if the surface area to volume ratio is big, the cell is small.
From the attachment below, the surface area (plasma membrane) per volume of plasma of the rectangular solids are as follows:
Solid 1: 10/2 = 5 cm⁻¹
Solid 2: 12.18/2 = 6.09 cm⁻¹
Solid 3: 19.0/2 = 9.5 cm⁻¹
Solid 4: 34.24/2 = 17.12 cm⁻¹
Solid 5: 65.79/2 = 32.895 cm⁻¹
Solid 1 has the smallest amount of plasma membrane per volume of cytoplasm
Question 8
Which of the following best describes the structures of carbohydrates?
A
They only occur as disaccharides.
B
They occur as monomers, chains of monomers, and branched structures.
с
They only occur as long and branched structures.
D
They occur as chains of monomers that hydrogen bond with complementary chains of monomers.
Answer:
D
Explanation:
The better description of the structures of carbohydrates is Option B They occur as monomers, chains of monomers, and branched structures.
Carbohydrates can be divided into monosaccharides (simple monomers), disaccharides (composed of two monosaccharides), and polysaccharides (long chains of monosaccharides) depending on the number of monomers that form the molecule.Carbohydrates are simple or complex structures composed of carbon (C), hydrogen (H) and oxygen (O).Simple carbohydrates include both monosaccharides and disaccharides such as glucose, fructose, and lactose.Complex carbohydrates are polysaccharides that may be branched or not branched (e.g., starch, glycogen, amylopectin, cellulose, and chitin).In conclusion, carbohydrates can be monomers, chains of monomers, and branched structures (Option B)
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Plzzz answer QUIZ!! Plzzz answerrr
Answer:
C. Student # 2 predicts that the vacuole will appear smaller and the chloroplasts and nucleus will have moved due to the cell membrane shrinking as water exits through osmosis.
Explanation:
Adding the drop of water to the slide puts the cell in a hypertonic solution and the water inside the cell will rush out of the cell to where there is less water, causing the cell to shrivel.
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Analyze evidence from the lesson regarding the origins of cell compartmentalization. Then make a claim about the origin of cell compartmentalization based upon the evidence presented, stating two to three reasons for the claim. Provide evidence and specific examples that support each reason for the claim. Provide a conclusion to the short essay.
Answer:
Explanation:
Both organelles, the mitochondria and chloroplasts (in photosynthetic organisms), are compartments that are believed to be of endosymbiotic origin.A compartment is a separate space within a larger whole. In relationship to the endomembrane system and the nucleus.organelles that aren’t part of the endomembrane system, such as mitochondria and chloroplasts.Cellular compartmentalization allows cells to optimize the efficiency of the processes that occur within organelles. But despite the advantages of compartmentalization, it’s not a universal feature of life. In fact, compartmentalization of cellular functions into membrane-bound organelles is limited to only one of life’s three major groups, or domains. That domain is the one that we belong to, the Eukarya. In addition to animals, eukarya includes plants, fungi, and other organisms with eukaryotic cells: cells that are relatively large, complex, and compartmentalized. And to see why that is, we need to look at how life has diverged over time.
Answer:......
Explanation:
W6cy
Which three components are common to all amino acids?
an amino group, a carboxyl group, and an R group
an amino group, a phosphate group, and an R group
a five-carbon sugar, a phosphate group, and a nitrogenous base
a five-carbon sugar, an amino group, and a nitrogenous base
Answer:
A
Explanation:
eg
Inorganic solvents cannot dissolve amino acids, but water can.The only type of amino acid found in proteins in the human body is L-. Thus, option A is correct.
What are the components are common to all amino acids?All amino acids have at least one basic amino group and one acidic carboxylic acid group. Amino acids are crystalline, colorless solids.
The fundamental structure of each amino acid is the same, Each amino acid has a carbon atom at its “core” known as the carbon, and four groups are connected to it: a hydrogen atom, a—carboxyl group, an -amine group, and an R-group, also known as a side chain.
Therefore, The R-group is the only distinctive component of each amino acid because the carbon, carboxyl, and amino groups are shared by all amino acids.
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Projection maps of earth are made in a variety of ways , such as the Robinson’s projection , Mercator projection, and conic projection.
Why is this variety necessary?
A) all projection maps are accurate only across small regions .
B)most projection maps are more accurate near the center .
C)all projection maps are subject to varying types of distortion.
Answer:
C. All projection maps are subject to varying types of distortion.
Explanation:
The only truly accurate representation of Earth is the globe, as earth is a sphere. When one tries to map out a 3-d sphere on a piece of paper, it is impossible without some kind of distortion occurring. This distortion happens with distance, size, and sometimes other factors. Different projections are used for different purposes because some are more accurate than others in terms of distance, size, relative position, etc.
The bones in the wings of a bat are the same as the bones found in the front paws of a raccoon. Their function is very different. This means that there is evidence of what
Answer: the answer is that they is the same but they different
Explanation:
It can also mean that even if you have the same bone structure you can be different to something else but they still the same #BLM✊
Answer:
share a common ancestor.
Explanation:
What is the relationship between biodiversity and ecosystem stability?
Answer:
It has been shown that biodiversity of an area has a large impact on the ecosystem stability of that area. Areas with high levels of species and genetic diversity are likely to have a more complex ecosystem, with a variety of food webs and biotic interactions.
What best explains the relationship between structure and function of the cell membrane? a The lipids forming the membrane provide energy for protein synthesis. b The lipids and proteins that make up the membrane allow it to be selective about what enters and leaves the cell. c The fluid inside the membrane buffers the chemical reactions taking place inside the cell. d The single-layer membrane surrounding the outside of the cell that allows for the easy removal of waste.
Answer: The lipids and proteins that make up the membrane allow it to be selective about what enters and leaves the cell."
Explanation:
During convection, hot material then moves to the side and . This circular pattern is called a convection current.
the answer of the missing blank is: it cools then sinks
Which of the following is true?
Polysaccharide - one ring of carbon
Monosaccharide - long chain of carbon rings linked together
Both of the above
Neither of the above
Match each organelle with the correct function.
1. controls cell activities chloroplast
2. creates complex molecules mitochondria
3. synthesizes protein rough ER
4. stores lipids and steroids lysosome
5. digests cellular waste cell membrane
6. catches light energy for photosynthesis Golgi body
7. converts food into ATP smooth ER
8. controls homeostasis nucleus
Answer:
1. Controls cell activities
A= Nucleus
2. Creates complex molecules
A= Golgi body
3. Synthesizes protein
A= Rough ER
4. Stores lipids and steroids
A= Smooth ER
5. Digests cellular waste
A= Lysosome
6. Catches light energy for photosynthesis
A= Chloroplast
7. Converts food into ATP
A= Mitochondria
8. Controls homeostasis
A= Cell membrane
Explanation:
This is a guess but i read the text and i think this is it. :)
The nucleus controls all the cell activities, hence for questions 1- nucleus, 2- Golgi body, 3- Rough ER, 4- Smooth ER, 5- Lysosome, 6- Chloroplast, 7- Mitochondria, 8- Cell membrane are the correct options.
What is the function of the different cell organelles?The nucleus is responsible for storing genetic material DNA, which is expressed into the protein. It is surrounded by the nuclear membrane which is the major characteristic of eukaryotes.
Mitochondria is responsible for producing energy in the form of ATP, having all the metabolic enzymes and electron transport chains inside it.
Chloroplast is a unique organelle, which is found inside photosynthetic organisms, in this organelle all the necessary pigments and enzymes are present, which uses sunlight to produce food.
Therefore, different organelles have diverse functions.
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1. In research, a scientist must always consider
A. plants.
B. evidence.
C. photographs.
D. theories.
Answer:
the scientist mass considered a plant
Explanation:
a plant
In research, scientists must always consider the evidence. So the correct option is B.
What is scientific evidence?Science investigates the laws and characterization of the observable and unobservable phenomena of the universe. Anything that is put forth as a fact or hypothesis must have testable measures so that it can be proved.
The tests performed in the case of scientific analysis give some results. If these results prove the hypothesis that was being tested, it's called a piece of positive evidence. If the results disprove the hypothesis being tested, it's called a piece of negative evidence.
Scientific evidence is of extreme importance in the case of the scientific method. No scientific theory can be accepted without sufficient evidence supporting it. The evidence is also required for disproving any kind of objections that may arise against the scientific theory.
Therefore the correct option is B.
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What would happen if Earth's inertia was less than its current value?
Answer:
If there will less inertia then the earth will flow in the solar system or could leave it but cannot be pulled or crashed into moon or sun.
Explanation:
That should be right.
the function of the cell wall in a plant cell is...?
Answer:
To protect the organelles inside the cell and control anything coming in and out of the cell
p.s: HI BISHH
What is a result of this farmers actions?
Answer:
B
Explanation:
the spotted strawberries mutated so he wiped out the non mutated to encourage new growth of the mutation.
Which of the following conclusions can be drawn from the data shown in the figure?
The figure shows two pie charts. The first pie chart represents distribution of nitrogen entering the Chesapeake Bay by its sources. According to the pie chart, each source accounts for the following percentage of the entering nitrogen: Agriculture fertilizer and manure account for 32 percent, Atmospheric deposition agriculture for 6 percent, Atmospheric deposition mobile, utilities, and industries for 26 percent, Atmospheric deposition natural for 1 percent, Municipal and industrial wastewater for 19 percent, Urban and suburban fertilizer runoff for 10 percent, and Septic systems for 4 percent. The second pie chart represents distribution of phosphorus entering the Chesapeake Bay by its sources. The sources account for the following percentage of the phosphorus: Agriculture fertilizer and manure for 45 percent, Natural sources for 3 percent, Municipal and industrial wastewater for 21 percent, and Urban suburban fertilizer runoff and transported sediments for 31 percent.
Which of the following conclusions can be drawn from the data shown in the figure?
Agriculture accounts for 77% of the nitrogen and phosphorus entering Chesapeake Bay.
Automobiles do not contribute to nutrient pollution in Chesapeake Bay.
Full protection of Chesapeake Bay will require consideration of activities within the bay's airshed and not just the bay's watershed.
Repairing broken septic systems will probably result in a large decrease in phosphorus pollution entering Chesapeake Bay.
Wastewater treatment plants do not contribute significantly to nutrient pollution in Chesapeake Bay.
Answer:
Full protection of Chesapeake Bay will require consideration of activities within the bay's airshed and not just the bay's watershed
Explanation:
Let's consider the options:
A) Agriculture accounts for 77% of the nitrogen and phosphorus entering Chesapeake Bay. Agriculture accounts for 45% of phosphorus and 32% of nitrogen, so cannot account for more than 45% of the pollution from these sources.
B) Automobiles do not contribute to nutrient pollution in Chesapeake Bay. 26% of nitrogen comes from atmospheric sources. Automobiles are a large contributor to atmospheric nitrogen pollutants, so it cannot be concluded that automobiles are not a contributor.
C) Full protection of Chesapeake Bay will require consideration of activities within the bay's airshed and not just the bay's watershed. Since atmospheric sources are tied with fertilizer and manure as the largest contributor of nitrogen pollution, it seems clear that addressing these sources will be required.
D) Repairing broken septic systems will probably result in a large decrease in phosphorus pollution entering Chesapeake Bay. The contribution of septic systems is 4% of the total nitrogen pollution, so eliminating that source will not have a major impact.
E) Wastewater treatment plants do not contribute significantly to nutrient pollution in Chesapeake Bay. Wastewater treatment accounts for about 20% of the pollution, so we'd have to say that is a significant source.
Answer:
the answer is the involvement of the US in the war put people to work and raised wages.
Explanation:
Who invented the steam engine? what purpose does it serve? How has it impacted society today?
Answer:
James watt made it
Explanation:
In 1698, British inventor Thomas Savery patented a steam-powered pump, which he described as an "engine to raise water by fire." Savery's very basic engine relied on steam to create a vacuum and pull water upwards through a pipe — a theory that had been around for several centuries but never successfully applied.
The steam engine was not created by a single person but instead developed through time with the help of several innovators. James Watt was one of the important protagonists in the steam engine's development, though.
James Watt significantly improved the design and effectiveness of steam engines in the late 18th century, which paved the way for their widespread usage.
The steam engine's function is to transform the steam's energy into mechanical work. It generates circular motion using the expanding force of steam created when water is heated, which may be used for a variety of purposes. Originally, the main use of steam engines was to remove water from mines.
The steam engine had a significant and far-reaching effect on civilization. These are some significant effects it has had on modern society:
Industrial Revolution: Steam engines' invention and widespread usage were crucial in starting the Industrial Revolution.
Transportation: Steam engines, which propelled steam locomotives and steamships, changed transportation.
Economic Growth: The steam engine's function in boosting transportation and powering industry helped to significantly increase the economy's growth and prosperity.
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Help please on this question
In all organisms, there are large biomolecules that have functions necessary for survival. These molecules are made up of smaller subunits that are provided by the food we eat. Two of these macromolecules are proteins and carbohydrates. What structural characteristics could be used to differentiate these two molecules?
A) Carbohydrates are made up chains attached to glycerol
B) Carbohydrates contains nitrogen bases held together with hydrogen bonds
C) Proteins are folded into shapes which promote their functions
D) Proteins contain carbon, hydrogen and oxygen atoms
Glucose forms the basis of all carbohydrates. Complex carbohydrate molecules are broken down during digestion into monosaccharide units that can participate in the body's energy process. Thus, option A is correct.
What are Carbohydrates?Sugar molecules make up carbohydrates, or carbs. Carbohydrates are one of the three primary nutrients included in foods and beverages, along with proteins and fats.
Glucose is created by your body's breakdown of carbs. The primary source of energy for the cells, tissues, and organs in your body is glucose, sometimes known as blood sugar.
One of the three macronutrients in our diet, carbohydrates are primarily used by the body to produce energy.
They can be found in a wide variety of foods, including whole grains, fruit, and vegetables, as well as in many various forms, such as sugars and dietary fiber.
Therefore, carbohydrates are made up of chains attached to glycerol.
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Give an example of a scientific law.
Which observation tool allows Shauna’s doctor to monitor her blood circulation in real-time? a microscope a telescope an X-ray an ultrasound
Answer:
ultrasound
Explanation:
Answer:
ultrasound
Explanation:
little late sorry xD
4. Why do we say, "The history of planet Earth is full of change?"
Explanation: The reason why many scientist, and well informed people say "The History of planet earth is full of change", is because that planet earth has colliding continents, and such beings of evolution right now we think we are the only living BEINGS in the universe, so the reason why The history of planet earth is full of change is colliding continents one day New York will be with Europe, and new governments will start forming, and sooner than later humans will start to evolve onto what is "The New world"
We say the history of planet Earth is full of change Because the landmasses are always moving.
What is the history of planet Earth?
The Earth's development from its formation to the present is the subject of the Earth's history. The main events of Earth's past, characterized by constant geological change and biological evolution, have been studied by nearly all natural science disciplines.
Earth was formed by accretion from the solar nebula around 4.54 billion years ago, which is about one-third the age of the universe. The primordial atmosphere and ocean were probably created by volcanic outgassing, but the atmosphere at the beginning lacked oxygen almost entirely. Due to frequent collisions with other bodies and extreme volcanism, much of the Earth was molten.
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You get 1 inch taller and gain 10 points in a year ?
A-made of cells
B-Reproduce
C-display heredity
D-respond to stimuli
C-maintain homeostasis
D-obtain and use energy
E-grow and develop
F-evolve and adapt
Which one is the right answer
Answer:
E
Explanation:
I hope the answer is E...
Inputs and outputs of a parking lot ?
Help plz
Answer:
rephrase ,i will answer the question if i could understand it
Explanation:
What is a thalamus?
Answer:
either of two masses of gray matter lying between the cerebral hemispheres on either side of the third ventricle, relaying sensory information and acting as a center for pain perception.
Explanation:
Answer:
The Thalamus is the thick part of the stem (pedical) from which the flower organs grow.It is called recaptacle.
Explanation:
Hope it works out!The answer to which of these scientific questions would MOST likely explain why all life on Earth is
based on carbon?
A. How many carbon isotopes are stable?
B. How much carbon is found in Earth's crust?
C. What are the naturally occurring states of carbon?
D. What is the configuration of carbon's valence shell?
Answer:
D. What is the configuration of carbon's valence shell?
Explanation:
Carbon is considered special and very versatile because of the number of valence electrons it has. Because it has four valence electrons, it's able to combine with many other elements, which makes it an essential building block of life.
which is a product of the Krebs cycle
A. ADP
B. NADH
C. pyruvate
D. glucose
Answer:
B. NADH
Explanation:
Among the given options in the question the product of krebs cycle is NADH.
There are 3 steps in krebs cycle in which NADH is formed .Among them the first one is conversion of isocitrate to alpha ketoglutarate,the second one is the conversion of alpha ketoglutarate to succinyl CoA and the rhird one is conversion of malate to oxaloacetate.
I'LL GIVE YOU A BRAINLIEST!
Why is it important for scientists and others tp be skeptical of extraordinary claims?
Answer:
“Extraordinary” evidence is only required when it must be balanced against a very large number of contrary observations. The crux of the matter is that in order to properly characterize a claim as “extraordinary,” there must exist weighty evidence of the exact antithesis.
Explanation:
An extraordinary claim is one that is already contradicted by extraordinary evidence. Under this definition, our maxim basically says that the only way to counter evidence is with more evidence. I think that this is self-evidently true, and quite useful. For an example application, take astrology.
Hoped this helped!
Short Answer
4. What role do marine laboratories play in the field of marine science?
Answer:
Explanation:
Marine laboratories allow marine biologists to keep organisms alive and to work over long periods of time. They also may have state-of-the-art equipment for conducting scientific research or they may be simple field stations that provide a base for scientists who work in remote areas.
Marine laboratories allow to keep marine organism for a longer period and allow to do research on them by marine biologists.
What is marine biology ?The field of study of marine organisms, their behaviors and interactions with the surrounding called as marine biology.
The marine biologist understand the marine species by studying the biological oceanography and their associated chemical, physical, and geological components.
It is a broad are in the research field, one has to have a particular are a interest.
Researchers apply particular molecular techniques in coastal areas to the deep sea and to various organisms such as viruses, plants, and fish.
The advantage of marine biology is to look oceans to help sustain our basic needs such as food, water and shelter.
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