Scientists use satellites to measure _____.the ocean salinitythe sea surface height the ocean floor depthan underwater features size
Sea- sea surface height
All eukaryotic cells contain small bodies known as _______. Organelles lipids miniscules
Answer:
organelles
Explanation:
In fruit flies the allele for long wings is dominat ans the allele for short qings is recessive what is likely genitype of sa friuit fly long wings
Use a dictionary to define the word stewardship. Think about how the definition applies to the environment. How can we be good stewards of the Earth? What things can we do to responsibly care for the environment? Discuss your ideas with a partner. Write a three-paragraph essay totaling 500 words about your discussion. Note the similarities and differences between your interpretation and that of your partner.
As the cell grows larger, which increases more rapidly , the volume of the cell or the surface area of the cell
Final answer:
As a cell grows in size, its volume increases more rapidly than its surface area, leading to a decrease in the surface area-to-volume ratio which makes it harder for the cell to exchange substances efficiently. Therefore, larger organisms require specialized organs to handle these exchanges.
Explanation:
As a cell grows, its volume increases much more rapidly than its surface area. This is because the volume of a cell grows cubically (to the power of three) while the surface area grows quadratically (to the power of two). Consider a cell as a sphere with the formula for surface area being 4πr² and for volume 4πr³/3. As the radius increases, the surface area-to-volume ratio decreases, leading to inefficient exchange of materials.
For instance, in Figure 5.2.4, a small cell with dimensions of 1mm has a surface area to volume ratio of 6:1, while a larger cell with dimensions of 2mm has a surface area to volume ratio of 3:1, displaying that volume increases faster than surface area. This increasing ratio affects the ability of the cell to transport nutrients and waste efficiently across the cell membrane, crucial for cellular functions like obtaining oxygen, growth, and reproduction.
Thus, as an organism grows, it needs specialized organs to aid in efficiently exchanging substances, due to the decreasing surface area-to-volume ratio with increasing cell size.
Some populations of bats live in areas with high levels of noise pollution, such as near heavily trafficked bridges. How might the hunting behavior of bats be affected by such an environment?
In the mentioned conditions, the hunting behaviors of the bats are influenced by the noisy surroundings as the hunting methods of the bats will get modified to amend with their noisy environments. The bats rely on echolocation in order to hunt their prey.
Thus, in a surrounding with ample noises, it becomes difficult for the bat to detect or hear the sounds of the prey amid the noises of the city. This could result in two outcomes, that is, either the population of the bat gets decreased, or a new hunting technique gets developed within the population of the bats.
Final answer:
High levels of noise pollution can severely interfere with bat echolocation, leading to increased difficulty in hunting, heightened alertness but reduced responsiveness to signals, and overall increased vulnerability to predators.
Explanation:
The hunting behavior of bats may be significantly affected by noise pollution in areas like heavily trafficked bridges. Bats rely on echolocation to hunt, which is a process that involves emitting ultrasonic sounds to find and track prey through the echoes that bounce back. In environments with high levels of noise pollution, these echolocation signals can be masked by the ambient sounds, making it difficult for bats to detect and hone in on their prey. This can interfere with their feeding, reproduction, and predator-avoidance behaviors. Additionally, noise pollution can increase alertness but also reduce responsiveness to important signals, such as alarm calls, making bats less fit and more vulnerable to predators.
Since about 800 species of bats echolocate, and have sophisticated brain circuitry and unique facial structures designed to funnel sound and avoid background noise, the interference from environmental noise can severely impact their ability to locate insects or other prey with precision. While bats are known to adapt their hunting tactics, such as using Doppler shift detection to assess the velocity and direction of prey, persistent noise could still cause difficulties by masking vital auditory cues. This uncertainty in locating prey can be particularly critical when bats accidentally enter houses and struggle to find exit points due to the complex sound reflections within closed spaces.
Match each tool to its description.
1.) GPS
2.) weather station
3.) telescope
A.) gathers local information about temperature, wind speed, and humidity.
B.) tracks things that the naked eye cannot see, such as radio waves.
C.) allows scientists to detect the precise physical location of certain natural phenomena.
GPS is used to know the physical location, and the weather station gathers local information about temperature. The telescope is used to track things invisible to the eyes. Thus, the correct options are 1. C, 2. A, and 3. B.
What is GPS?A global Positioning System (GPS) is a device based on the space and radio-navigation system that uses the broadcasting signals from the satellites to locate the precise location of the movement. Hence, option C is correct.
The weather station is a center that provides information and data on the atmospheric conditions by forecasting the data on temperature, humidity, precipitation, etc. with various equipment. Hence, option A is correct.
The telescope is a scientific instrument used to see the images of faraway objects that can not be seen directly with the eyes. It can be used to see the celestial bodies. Hence, option B is correct.
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what was surprising toscientists about hurricane floyd
The hurricane Floyd took place in the East Coast of the United States during 1999. It caused extensive destruction in its path. However, there was one fact that was astonishing for the scientists is that in spite of causing such a mass destruction on the terrestrial surface, the hurricane resulted in no harm to the aquatic life. That is, no major fishes were killed during the hurricane.
What enhances the transparency of an increment?
Answer:
Transparency of an increment.
Explanation:
These are points which enhance the Transparency of an increment follows:
All the doing work needs to fulfill the definition "done". Estimation of all the undone work needs to be completed in the separate dash and keep it on track.Send a daily report of the dash to the stakeholder.All the dash tasks should be updated properly in an electronic tool. It should be visible to all to show progress.It must be transparent to inspect.The increment must be inspected in every iteration.
The transparency of an increment in a project, particularly in software development, can be enhanced through open communication and consistent documentation. Communication allows for openness and awareness among team members, while documentation ensures a recorded, accessible history of changes and decisions.
Explanation:The transparency of an increment in software development, particularly in agile methodologies, can be enhanced through a variety of ways. The two most important ways are open communication and consistent documentation.
Open communication is the sharing of information, ideas, and decisions across all team members. This ensures that everyone is kept up-to-date on the project's progress, which helps to identify issues and implement adjustments in a timely manner.
Consistent documentation, on the other hand, refers to regular record keeping about the developments of the project. This includes input, outputs, and changes that have been made. Documentation provides transparency by having all changes and decisions recorded and accessible for all team members.
By maintaining open communication and consistent documentation, the transparency of each increment of a project is greatly enhanced, allowing for smoother workflows and more successful projects.
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E. coli is a species of bacteria that causes many different infections in humans. Certain E. coli strains have developed resistance to antibiotics, making infections with these strains difficult to treat. How do bacteria such as E. coli, which reproduce asexually, gain new traits such as antibiotic resistance?
A. by adapting to changes in environmental conditions without undergoing changes in their DNA
B. by mutating their DNA in response to environmental conditions to gain beneficial traits
C. by producing offspring with new gene assortments from genetic recombination, which increases diversity in a population
D. by undergoing spontaneous mutations when they replicate, which increases genetic variation in a population
The correct answer is: B. by mutating their DNA in response to environmental conditions to gain beneficial traits.
Bacteria such as E. coli, which reproduce asexually, can gain new traits such as antibiotic resistance through mutations in their DNA. Mutations are random changes in the DNA sequence that occur during replication or in response to environmental factors. When a mutation provides a survival advantage, such as resistance to antibiotics, it can be passed on to subsequent generations through asexual reproduction, leading to the spread of the trait within the bacterial population. This process contributes to the development of antibiotic-resistant strains of bacteria.
Bacteria like E. coli, which reproduce asexually, primarily gain new traits, such as antibiotic resistance, through mutations in their DNA. Mutations are random changes in the genetic material of an organism that can occur during DNA replication or in response to various environmental factors, such as exposure to antibiotics or other stresses.
When a mutation occurs in a bacterial cell's DNA and confers a beneficial trait, such as resistance to an antibiotic, that bacterium gains a survival advantage over others in the population. This advantage allows the mutant bacterium to survive and reproduce more successfully in the presence of the antibiotic, while susceptible bacteria are killed off. As a result, the mutant bacterium can pass on the mutated gene to its offspring through asexual reproduction, thereby spreading the trait of antibiotic resistance within the bacterial population.
Over time, as bacteria continue to reproduce and mutate, a population of bacteria may accumulate multiple mutations that contribute to antibiotic resistance. This process is a key driver of the evolution of antibiotic-resistant bacterial strains and presents a significant challenge in the treatment of bacterial infections.
E. coli gains new traits, such as antibiotic resistance, primarily [Option D] through spontaneous mutations during replication, introducing genetic variation.
During DNA replication, spontaneous mutations frequently confer new traits like antibiotic resistance in asexually reproducing bacteria like E. coli. A bacterial population's genetic makeup can be altered by mutations. Moreover, microbes can secure new qualities, including those for anti-toxin opposition, through flat quality exchange processes like change, transduction, and formation. Bacteria can exchange plasmids, which are small DNA molecules that can carry antibiotic resistance genes, through these processes.
What is a physical change n terms of particle arrangement
A physical change is a change which only affects the form of a substance, but not its chemical composition. So, a physical change in terms of particle arrangement states that particles do not change apart from gaining or losing energy. It can be explained using the examples of freezing and melting.
When a substance is solid, its particles like atoms and molecules are very tightly packed. These cannot move freely but when a substance is in liquid or gaseous state, the particles are loosely packed and can move freely. So when water is solid the particles are tight but when it is in liquid state same particles can move faster. Hence, particles are same but their energy has changed.
What do asteroids and comets have in common ? Check all that apply
Asteroids and comets have in common with only some aspects. Both, they are heavenly bodies which revolve around the sun. They can have an unexpected trajectory when they drift near to the earth or other planets. Both they are residues which are formed from things which remained after the formation of the solar system 4.5 billion years ago.
I assume you have asked this question for the same reason that I have at one point. The answer:
- they are orbiting the sun
- they are small compared to the planets
Trust me on this, these are confirmed! Hope this has helped.
Which of the following explains why starch is a polymer?
A. organic compound molecule
B. contains carbon-based functional groups
C. high mobility as a result of its long length
D. repetitive combination of simple subunits
Starch is a polymer because it contains a repetitive combination of simple subunits.
Starch is a macromolecule that is made up of glucose subunits. Thus it can be broken down into its subunits using relevant chemical processes.
Molecules that are made up of simpler subunits linked together by chemical bonds are known as polymers.
Apart from starch, other examples of polymers include proteins, DNA, RNA, etc.
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What refers to a weighted average of the atomic weights of all naturally occurring isotopes of an element.
Atomic mass of an element refers to a weighted average of the atomic weights of all naturally occurring isotopes of an element.
The atomic mass of an element is the weighted average mass of the atoms of all naturally occurring isotopes of the element. Atomic mass is usually reported in atomic mass units and it can be calculated using the weights of the different isotopes and the relative abundances of the element's naturally occurring isotopes. The atomic mass of each element is usually indicated below the element's symbol in each square in the periodic table. For example, the atomic mass of the element boron is 10.8, while that of neon is 20.8.
jelly-like' substance where a cell's chemical reactions take place
The 'jelly-like' substance in a cell where chemical reactions take place is known as the cytosol or cytoplasm. It houses cellular organelles and carries various essential substances. All metabolic processes, including protein synthesis, occur within the cytoplasm.
Explanation:The 'jelly-like' substance where a cell's chemical reactions take place is referred to as the cytosol or cytoplasm. It comprises of the entire region of the cell between the plasma membrane and the nuclear envelope. The cytoplasm is made up of organelles suspended in the semi-solid cytosol, the cytoskeleton, and various chemicals. These include proteins, glucose, simple sugars, polysaccharides, amino acids, nucleic acids, and fatty acids, among others. Dissolved ions such as sodium, potassium, and calcium are also present in the cytoplasm.
All the cell's metabolic reactions, including protein synthesis, occur in the cytoplasm. Additionally, the cytoplasm contains cellular organelles, each performing a unique function to keep the cell healthy and performing its series of essential activities.
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Living organisms contain many complicated molecules. Which of these is a reason that carbon is important in these molecules?
A) a carbon atom can form a bond with only one other carbon atom
B) carbon bonds with the lightest and smallest element
C) a carbon atom can only form one bond at a time with another atom
D) carbon forms both single and double bonds
I'd say the answer is D
Malaria kills two million people a year and is caused by what
Enzymes are biological compounds that act as _________ and help complex reactions occur everywhere in life.
proteins
amino acids
catalysts
herbicides
The answer to your question is,
Catalysts
-Mabel <3
The right option is (C) as Catalyst
ExplanationEnzymes are the biological compounds that Operate as catalyst and accommodate complex reaction occurs in the body-of living organism. They provide the activation energy to the biochemical reactions to just speed up the reactions (without being consumed by itself) and remain unchanged at the end of the reaction.
Macromolecules are formed by combining single units, called _________, together to form a chain, called ___________.
Question 1 options:
A). Monosaccharides; proteins
B). Monomers; polymers
C). Atoms; elements
The answer is B, because Macromolecules are formed by combining single units, called Monomers. The monomers combine with each other using covalent bonds to form larger molecules known as polymers.
Macromolecules are formed by combining single units, called monomers, together to form a chain, called polymers.
Answer: Option B
Explanation:
Polymers are substances that are formed when many molecules of monomers are linked together to form a complete chain, this may be a homopolymer when identical monomers are linked together or a heteropolymer in which non identical monomers are linked together.
Many of our biomolecules are polymers that arise by continuous linkage of monomers for example protein which contains amino acids as its monomers.
When El Niño occurs,
*I NEED ANSWER ASAP*
During an El Niño, the trade winds weaken in the central and western Pacific. Surface water temperatures off South America warm up, because there is less upwelling of the cold water from below to cool the surface. The clouds and rainstorms associated with warm ocean waters also shift toward the east. (Sorry if you mean something else it would be a common mistake)
what is the smallest particle representing hydrogen peroxide?
An oxygen atom would be the smallest particle representing hydrogen peroxide.
hope that helps :)
I think the answer is a molecule.(IS IT UP THERE ?)
Which term best describes the process that increases the quantity of cells
Final answer:
The process that increases the quantity of cells within a tissue is called hyperplasia, which leads to tissue and organ enlargement. This is part of the growth processes in multicellular organisms, where plants also grow through cell division and expansion in the meristems.
Explanation:
The term that best describes the process that increases the quantity of cells within a tissue is hyperplasia. Hyperplasia is a cellular response characterized by an increase in the number of cells, which can lead to an enlargement of tissue mass and organ size. In humans and other multicellular organisms, growth occurs not only through hyperplasia but also by increasing the non-cellular material around cells, and to a limited extent, enlarging the size of existing cells.
In the context of plant growth, the increase in the size of plants occurs as individual cells, produced by cell divisions in the meristems, expand. This is a key aspect of the growth processes in plants. Additionally, there is a phase known as the exponential or log phase, during which cells undergo predictable doublings in their numbers, a phase that is essential for rapid growth and is ideal for experiments due to the uniformity and health of the cells.
Which statement best describes science?
A. Science cannot answer questions about right and wrong.
B. Science can answer only philosophical questions.
C. Science can answer any and all questions.
D. Science cannot answer questions about natural phenomena.
Final answer:
The statement that best describes science is that it cannot answer questions about right and wrong, as it is limited to material phenomena that can be observed and measured. Scientific knowledge is continuously building upon itself and can be revised with new evidence, enhancing rather than detracting from its reliability.
Explanation:
The statement that best describes science is that science cannot answer questions about right and wrong. Science is a systematic approach to understanding natural phenomena through observation and experimentation, creating testable explanations and predictions. However, there are limitations to what science can explain. Questions that relate to morality, aesthetics, or spirituality fall outside the scope of scientific inquiry because they are not material phenomena and hence, cannot be observed or measured in the same way physical events can.
Moreover, scientific knowledge builds upon itself but can always be revised with new evidence or perspectives. While observations in science do not need to be made with the eye—telescopes, microscopes, and other instruments are often used—scientists may draw conclusions from indirect observations or using theories to explain unobserved phenomena. However, for something to be scientifically tested, there has to be some form of observable effect or consequence that can be measured. For instance, black holes cannot be seen directly, but their existence is confirmed by the gravitational effects they have on surrounding matter.
In terms of susceptibility to being disproven, frontier science, which deals with brand-new discoveries or models, is generally more prone to revision than established consensus science. Lastly, it's important to understand that a dramatic change in scientific understanding is called a scientific revolution, and this demonstrates that while scientific ideas may change, this flexibility enhances their reliability rather than detracts from it. Science is indeed a process, and a scientific law describes what happens under certain conditions based on repeated empirical evidence.
Suggest what happens to the break down of starch when it reaches the stomach.
When starch enters the mouth, it is acted upon by salivary amylase, an enzyme that breaks starch down into maltose. It is not fully digested however, because by the time it reaches the stomach, the enzymes would not have the time to fully break it down.
What happens to carbohydrate/ starch when it reaches the stomach is that your body would break down the stuff and turn it to sugar and then the sugar would enter your blood stream.
Each step of cellular respiration produces a "net" amount of ATP. In glycolysis, ____ net ATP are produced. In the Krebs cycle, 2 net ATP are produced. In the electron transport chain, ___ net ATP are produced.
A. 32; 2
B. 2; 32
C. 36; 2
D. 2; 36
PLZ HELP, WILL MARK BRAINLIEST
1. active transport requires the body to use
ADP
ATP
Sugar molecules
2. If your blood cells are placed into pure water, they will
Most likely shrink
Most likely explode
Most likely remain unchanged
i hope this helps you !!!!!!
1.ATP
2.If a red blood cell is placed in water, water enters the cell by osmosis. Because the membrane is quite weak the cell WILL BURST as the volume and therefore the pressure in the cell increases. Red blood cells shrink when placed in concentrated solutions of sugar as water moves out of them by osmosis. so answer is C
2) Most likely shrink
Explain how remote sensing is used to make accurate maps of earths surface features
Passive sensors gather radiation that is emitted or reflected by the object or surrounding areas. Reflected sunlight is the most common source of radiation measured by passive sensors. Examples of passive remote sensors include film photography, infrared, charge-coupled devices, and radiometers. Active collection, on the other hand, emits energy in order to scan objects and areas whereupon a sensor then detects and measures the radiation that is reflected or backscattered from the target. RADAR and LiDAR are examples of active remote sensing where the time delay between emission and return is measured, establishing the location, speed and direction of an object.
Remote sensing is a technology used to collect data from satellite or airborne sensors to create accurate maps of Earth's surface features. It involves analyzing electromagnetic radiation to determine various surface characteristics such as vegetation, land use, and topography.
Explanation:Remote sensing is used to make accurate maps of Earth's surface features by collecting data from satellite or airborne sensors. These sensors capture electromagnetic radiation reflected or emitted by the Earth's surface and atmosphere. By analyzing this data, scientists can create detailed maps that show various surface features such as vegetation, land use, and topography.
For example, remote sensing can be used to create maps that show the distribution of different land cover types, such as forests, agricultural fields, and urban areas. This information is valuable for urban planning, natural resource management, and environmental monitoring.
Some of the key remote sensing technologies used to create accurate maps include aerial photography, multispectral and hyperspectral imaging, and LiDAR (Light Detection and Ranging).
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The diffusion of water across a selectively permeable membrane depending on the concentration of solutes on either side of the membrane is called
Answer: Osmosis is the diffusion of water molecules, from a regions of higher concentration to a region of lower concentration, through a selectively permeable membrane. Osmosis is directly dependent upon the concentrations of the solutes : a dilute solution will contain a higher concentration of water molecules, while a concentrated solution contains a low concentration of water molecules. As, a result of this the level on more concentrated side will rise and cell will get swell. On the other hand the level on less concentrated side the cell will shrink. When concentration is the same on both the sides of the membrane , the movement of water molecules will be the same in both directions. At this point, the net exchange of water will become zero and there will be no changes in the liquid levels.
Osmosis is the movement of water across a selectively permeable membrane due to differences in solute concentrations on either side, facilitated by proteins such as aquaporins.
Explanation:The diffusion of water across a selectively permeable membrane depending on the concentration of solutes on either side of the membrane is called osmosis. This process is vitally important for maintaining cellular integrity and responding to changes in solute concentrations outside the cell. Osmosis can be described as the movement of water through a semipermeable membrane from a region of higher water concentration (lower solute concentration) to a region of lower water concentration (higher solute concentration). This occurs until the concentration of water and solute equalizes on both sides of the membrane or the hydrostatic pressure equals the osmotic pressure. In living systems, aquaporins play a crucial role in facilitating water movement across cell membranes, enabling osmosis to proceed efficiently.
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A catalyst is a ______.
A. both a reactant and a product
B. product
C. neither a reactant nor a product
D. reactant
Being interested in penguins, Paul wanted to study the effect of fast food hamburgers on the weight of penguins. After many trials of trying to get the penguins to eat the burgers, Paul became frustrated at the fact that the penguins were losing weight and not eating any of the burgers. Why was Paul's experiment not a complete waste of time and resources?
The experiment conducted by Paul was not a waste of his time and resources even though he could not accomplish the experiment he initially prepared to conduct. The reluctance of the penguins to eat burgers even though they were starving and losing weight pointed towards the fact that they do not find junk food appealing. It could be concluded from their reluctance that they will eat only their normal diet rather than something they have never eaten before.
Answer:
its's D) Paul found that fast food burgers cause penguins to lose weight.
Explanation: