The correct sequence of the statements showing the steps in insects' development of resistance to pesticides is;
An insecticide is applied to corn.Some Grasshoppers remain,The progeny of the survivors are once more sprayed.The population's most pesticide-resistant individuals continue to reproduce and survive each spraying in a loop.After several sprayings, the pesticide is made useless.The resistant gene is passed on during reproduction in the surviving grasshoppers.How do insects development of resistance to pesticides?Insects can develop resistance to pesticides through a process called natural selection.
When a pesticide is applied to an insect population, some individuals may have genetic variations that make them less susceptible to the pesticide. These individuals are more likely to survive and reproduce, passing on their resistant genes to their offspring. Over time, the proportion of resistant individuals in the population increases.
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Write a report on the origin of life.
Take a subject of origins or a question you have and write a minimum of 500 words as a research project. Be sure to list all references and resources as part of your bibliography. Other information can be found at a library or other reference source.
Please answer asap
The first single-celled organisms known as prokaryotes are thought to have originated in the oceans between 3.8 and 4 billion years ago (BYA), when the ocean's and atmosphere's chemical compositions were very different from what they are today.
Theory This long-standing and contentious topic is called "the origin of life," and it centers on how these organisms first appeared (see Dostal et al., 2009). Lightning in the early atmosphere is one potential mechanism. As a result, amino acids were produced, and when they were combined into long chains, they provided the building blocks for life. A second mechanism focuses on the chemical reactions that occur at volcanic vents beneath the ocean. According to a third theory, comets and meteorites that burnt in the atmosphere produced the carbon and hydrocarbons that eventually led to life.For more information on origin of life kindly visit to
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PLS HELP ILL GIVE U 50!!!! I NEED IT FOR MY FINAL GRADE
Using a claim-evidence-reasoning structure, construct an explanation of why the drought caused the lions' home range and movement patterns to change.
Does the internal environment of a cell change based on its external environment?
Yes, the internal environment of a cell can change based on its external environment in order to maintain cellular homeostasis.
What is cellular homeostasis?Cellular homeostasis refers to the maintenance of a stable internal environment within a cell, despite changes in external conditions. It is critical for the proper functioning and survival of a cell. The internal environment of a cell includes the concentration of ions, pH, temperature, and other factors that must be kept within a narrow range for the cell to function optimally.
Cells use a variety of mechanisms to maintain homeostasis, such as ion channels, pumps, and transporters that control the movement of ions in and out of the cell. Additionally, cells may produce or remove specific molecules in response to changes in the environment to maintain a balance between various cellular processes. Disruptions to cellular homeostasis can lead to cellular dysfunction and even cell death.
Cellular homeostasis is a dynamic process, with cells constantly monitoring and adjusting their internal environment to ensure that they can respond to changes in their external environment and maintain their functional integrity.
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When you hear sounds through a wall, you can hear lower pitched sounds more clearly than higher pitched sounds. Use a model to explain why.
When sound waves propagate through a medium such as a wall, they interact with the material and undergo various types of attenuation and dispersion. In general, lower pitched sounds have longer wavelengths and are therefore less affected by these interactions compared to higher pitched sounds, which have shorter wavelengths.
What is sound waves?
Sound waves are a type of mechanical wave that is created by the vibration of an object or medium. When an object vibrates, it causes the air particles around it to vibrate, which creates a pressure wave that travels through the air or another medium. As the pressure wave propagates through the medium, it alternately compresses and rarefies the particles in the medium, creating a series of high and low pressure regions that propagate outward from the source of the sound.
When sound waves propagate through a medium such as a wall, they interact with the material and undergo various types of attenuation and dispersion. In general, lower pitched sounds have longer wavelengths and are therefore less affected by these interactions compared to higher pitched sounds, which have shorter wavelengths.
One way to understand this phenomenon is to use the concept of acoustic impedance, which is a measure of the resistance of a material to the propagation of sound waves. Acoustic impedance depends on both the density and the speed of sound in the material, and it varies with frequency. When sound waves encounter a boundary between two materials with different acoustic impedances, some of the energy is reflected back, while some is transmitted through the boundary.
In the case of a wall, the low-frequency components of a sound wave are more likely to be transmitted through the wall because they have a lower acoustic impedance compared to the wall material. In contrast, the high-frequency components are more likely to be reflected because they have a higher acoustic impedance than the wall material. This results in a reduction in the amplitude of high-frequency sounds that are transmitted through the wall, making them harder to hear.
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The phenomenon of hearing lower-pitched sounds more clearly than higher-pitched sounds through a wall can be explained by the physical properties of sound waves and how they interact with materials.
What is Sound Wave?
A sound wave is a type of wave that is created by a vibrating object and is capable of propagating through a medium such as air, water, or solids. Sound waves are composed of compressions and rarefactions that travel through the medium as a series of oscillating pressure changes.
Sound waves are composed of pressure variations that propagate through a medium, such as air or a solid material like a wall. When sound waves encounter a solid object like a wall, they can be partially transmitted through the wall and partially reflected back towards the source of the sound.
The amount of sound that is transmitted through a wall depends on the frequency (or pitch) of the sound, as well as the material properties of the wall. In general, low-frequency sounds have longer wavelengths and are better able to penetrate solid objects than high-frequency sounds, which have shorter wavelengths.
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What is the difference between developmental and physiological adaptation?
Group of answer choices
Developmental is based on cultural practices, physiological is driven by genetics
Developmental is irreversible, physiological is reversible
Developmental is genetic, physiological is not
Developmental is reversible, physiological is irreversible
Answer:
developmental is irreversible,physiological is not
Which statement is true about air temperature and humidity?
The air temperature does not affect how much moisture the air can hold.
Hotter air holds less moisture than colder air.
Hot air and cold air hold the same amount of moisture.
Colder air holds less moisture than hotter air.
Colder air holds less moisture than hotter air. As the temperature of the air increases, the amount of moisture that the air can hold also increases. This is because warm air molecules are more spread out and have more space to hold water vapor. When air cools, the molecules move closer together and there is less space for water vapor, so the air can't hold as much moisture.
Therefore, when the air is humid, it means that there is a high amount of moisture in the air relative to the temperature. Conversely, when the air is dry, it means that there is a low amount of moisture in the air relative to the temperature.
Compare the running costs
The running costs of a car and a bicycle are very different.
What is running?Running is a form of physical activity which involves moving quickly on foot, using alternate movements of one's legs to propel the body forward. It is a type of aerobic exercise and is a popular form of exercise, as it is convenient and can be done almost anywhere. Running can have a range of different benefits, including improved physical fitness, weight loss, improved heart health, and improved mental health. .
A car has much higher running costs because it requires fuel to run, which can be expensive depending on the type of fuel and how much is used. It also requires regular maintenance such as oil changes, tire rotations, and other repairs, which can add up. In addition, car insurance and registration fees may apply.
A bicycle, on the other hand, has much lower running costs. The main cost associated with a bicycle is the initial purchase price, and any maintenance needed is usually minimal, such as cleaning the chain or tightening the brakes. The only other cost associated with a bicycle is the cost of any accessories, such as lights or a lock.
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A true breeding brown bodied male
fly mates with a true breeding white
bodied female fly. All of their
hundreds of progeny are brown
bodied.
7. Which allele is dominant?
8. Write the parent genotypes below.
brown bodied male:
white bodied female:
heterozygous man with wet
7. The allele for brown body color is dominant over the allele for white body color.
8. The parent genotypes can be represented as follows:
Brown bodied male: BB (homozygous dominant)White bodied female: ww (homozygous recessive)What is an allele?An allele is a variant form of a gene that determines a specific trait or characteristic. Genes are located on chromosomes and are made up of DNA. Different versions of the same gene, or alleles, may exist within a population or individual. These different alleles can result in variations in physical, biochemical, or behavioral traits.
Alleles can be either dominant or recessive, meaning that the effects of a dominant allele will be expressed even if only one copy is present, while the effects of a recessive allele will only be expressed if two copies are present.
7. Based on the given information, we can conclude that the allele for brown body color is dominant over the allele for white body color.
8. The parent genotypes can be represented as follows:
Brown bodied male: BB (homozygous dominant)White bodied female: ww (homozygous recessive)Learn more about alleles here https://brainly.com/question/3452155
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What type of environment are Echinoderms found in?
terrestrial environment
marine environment
both terrestrial and marine
environments neither terrestrial or marine environments
Answer
All echinoderm species live in the ocean; there are no freshwater or terrestrial echinoderms.
Explanation:
(no need for explanation)
The giraffes long neck is a(n) ____ which makes it easier for giraffes to feed on the higher branches of trees.
Answer:
adaptation
Explan
Answer: adaptation
Explanation:
What weather system supplies fresh water to a fifth of the world's population?
The Asian monsoon weather system supplies fresh water to a fifth of world's population. Regions of South Asia experience heavy rainfall during monsoon season, which usually lasts from June to September.
What is freshwater water?Freshwater is defined as water with a maximum of 1,000 milligrams of dissolved particles per liter, most frequently salt. Earth's surface water bodies are usually regarded as renewable resources because they are a part of the water cycle, despite the fact that they rely heavily on other water cycle components.
What are the two primary kinds of fresh water?The lentic ecosystem and the lotic ecosystem are the two main subtypes of freshwater habitats. Ponds, marshes, ditches, and other still-water features make up lentic environments.
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what is prokaryotic cell
Answer:
A prokaryotic cell is a type of cell that lacks a distinct, membrane-bound nucleus and other complex membrane-bound organelles found in eukaryotic cells. Prokaryotes are unicellular organisms that are typically smaller and simpler in structure than eukaryotic cells. They are found in domains Archaea and Bacteria.
The genetic material in prokaryotic cells is organized in a single, circular chromosome, which is located in the cytoplasm of the cell. Other genetic material may also be present in the form of plasmids, which are small, circular pieces of DNA that can replicate independently of the chromosome.
Prokaryotic cells also have a cell wall, which provides structural support and helps maintain the cell's shape. The cell wall of bacteria is typically composed of peptidoglycan, while the cell wall of archaea may be made of different materials, such as pseudo peptidoglycan or other unique structures.
Prokaryotic cells carry out all the functions necessary for life, such as metabolism, growth, and reproduction, within the cell's cytoplasm. They can reproduce asexually through processes such as binary fission, in which the cell divides into two identical daughter cells.
Explanation:
Submit a one-paragraph summary describing the topic you chose, your model, what it represents, how you made it, and the specific science involved. It is important that you are using science terminology and are accurate.
I just need you to explain the science involved with specific terminology for the diagram below. Like the processes below described in detail!
The given diagram shows the process of photosynthesis that takes place in sunlight, carbon dioxide and water.
ProcessThrough a process called photosynthesis, plants and other living things may transform light energy into chemical energy that can then be released through cellular respiration to power their activities. The name "photosynthesis," which comes from the Greek words for "light" and "putting together," refers to the process whereby some of this chemical energy is stored in carbohydrates, such as sugar and starch molecules, which are produced from carbon dioxide and water. Photoautotrophic organisms, such as the majority of plants, algae, and cyanobacteria, carry out photosynthesis. The majority of the energy required for life on Earth is produced and maintained through photosynthesis, which is also primarily responsible for producing and maintaining the oxygen concentration of the Earth's atmosphere.For more information on photosynthesis kindly visit to
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A student is writing an essay about coral reefs for science class. The student wants to revise the essay to include a conclusion. Read the draft of the report and complete the task that follows. Coral reefs can be found in tropical waters around the world. They are beautiful rocky mounds that are valuable to many creatures including fish, sea turtles, and humans. Thousands of species of fish, such as parrotfish and clownfish, depend on coral reefs for food and protection. They eat algae and other small plants that grow on the reef. When the fish eat those plants, they help to keep the coral reef healthy. Many fish find safety in the reef when they are able to blend in with the coral to protect themselves from predators. Another animal that relies on coral reefs is the sea turtle. Many sea turtles make their homes around and beneath the reef formations. The sea turtles also use the reefs as protection from a variety of different predators, such as sharks and killer whales. Humans also rely on coral reefs for food and tourism. Foods, such as, clams, crabs, lobsters, scallops and shrimp can be found living in coral reefs. They are part of the diets of people throughout the world. Coral reefs also provide entertainment to millions of visitors to tropical locations each year. People can go snorkeling and scuba diving to see the beautiful reefs and the different animals that call the reefs their homes.
In conclusion, coral reefs are an invaluable resource to the many creatures that inhabit them, including fish, sea turtles, and humans.
What is resource?A resource is any physical or virtual asset that can be used to support a business or individual. Examples of resources include money, time, materials, people, knowledge, or technology. Resources can also be intangible, such as data or intellectual property. Depending on the context, resources can be used to generate revenue or to support other activities.
The fish rely on the reef for food and protection, the sea turtles use them for shelter and safety from predators, and humans depend on them for food and tourism. Coral reefs are a vital part of the world's ecosystem and must be protected in order to ensure their continued survival. Without coral reefs, many species of fish, sea turtles, and other animals would be left without a home while people would lose a valuable source of food and entertainment.
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14. Frank was out of town for a few days and when he returned, he noticed that
his plant was very wilted. He watered the plant and put it in the sun. A few
hours later, he noticed that it the leaves on the plant had perked up and
looked fine again. The image shows the plants before and after the water
and exposure to sunlight.
Answer:
it sounds like Frank's plant was suffering from dehydration due to lack of water, which caused the leaves to wilt. When Frank watered the plant and put it in the sun, the plant was able to absorb the water and nutrients it needed to recover, which caused the leaves to perk up and look healthy again.
This is a common response for many types of plants when they are dehydrated or stressed. However, it is important to note that different types of plants have different requirements for water, sunlight, and other environmental factors, and it is important to research and understand the specific needs of a particular plant to ensure its long-term health and well-being.
Explanation:
Which of these best explains why the use of fossil fuels for energy production is a not a long-term solution to the world's energy needs? A. They contribute to water and air pollution problems. B. There is a limited amount of fossil fuels available. C. The mining of fossil fuels creates environmental issues. D. They release excessive heat energy when they are used.
A
Explanation: Its always A
True or False
A stalactite is a deposit of calcite on a cave floor.
Answer:
True - A stalactite is a deposit of a calcite on a cave floor.
Please help me with this, pick one choice
Answer:
33: Anabolic
34: An organism that performs photosynthesis for food
35: B
Explanation:
Answer:
33: A. Anabolic
34: C. An organism that performs photosynthesis for food
35: B. It van shuttle a 2C molecule from glucose into the citric acid cycle.
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A heterozygous man with wet
earwax marries a woman with dry
earwax.
13. Which allele is dominant?
14. Write the parent genotypes below
wet earwax male:
dry earwax female:
Answer: wet earwax is dominant
male:Ee Female:ee
Explanation:
If the male is heterozygous that means he has one dominant and one recessive and dominant traits are stronger than recessive.
A fan pushes hot air out of a vent and into a room. The hot air displaces cold air in the room, causing the cold air to move closer to the floor. The hot air displacing the cold air is an example of ____ transfer by _____
The hot air displacing the cold air is an example of heat transfer by convection.
What is Convection?
Convection is a mode of heat transfer that involves the movement of fluid (such as a gas or a liquid) due to differences in density and temperature within the fluid. It occurs when warmer regions of a fluid move to cooler regions, carrying their thermal energy with them. This results in a transfer of heat from the warmer region to the cooler region of the fluid. Examples of convection include the movement of air in a room heated by a radiator or the transfer of heat by the circulating currents in a pot of boiling water.
As the hot air moves into the room, it displaces the colder air in the room, which is forced to move closer to the floor. This is because the hot air is less dense than the cold air and rises, while the cold air is more dense and sinks. As the hot air continues to rise and the cold air continues to sink, the process of convection helps to distribute heat throughout the room.
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What are the results of natural selection? Select all that apply.
Science test on cellular respiration
The correct answer is 2. Our bodies produce a lot of CO₂ and water as waste and that it needs to get rid of through breathing.
Why is breathing necessary?Breathing is necessary to bring oxygen into our bodies and remove carbon dioxide, which is a waste product of cellular respiration. When we eat food, it undergoes a process called cellular respiration, which releases energy in the form of ATP. This process requires oxygen and produces carbon dioxide as a waste product.
While we can store energy from food for later use, we cannot store oxygen or remove carbon dioxide from our bodies without breathing. Therefore, we need to breathe constantly to maintain the supply of oxygen and remove the waste carbon dioxide. In contrast, we can eat a few times a day because our bodies can store excess food energy as fat for later use.
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Identify the greatest ecological harm that results from the practice of tilling.
The greatest ecological harm that results from the practice of tilling is soil erosion, which is present in Option A, as tilling involves the mechanical disruption of the soil, which can lead to soil loosening.
What is soil erosion?Soil erosion can have significant ecological impacts, including the loss of valuable topsoil, reduced soil fertility, and increased sedimentation in nearby waterways, tilling is a common agricultural practice that involves mechanically breaking up the soil and causing erosion, which has many harmful effects on the soil.
Hence, the greatest ecological harm that results from the practice of tilling is soil erosion, which is present in Option A.
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question is incomplete, complete question is below
Identify the greatest ecological harm that results from the practice of tilling.
a)soil erosion
B)increase fertility of soil
Identify the placement of items A - E using the
drop down menus.
A
B
C
D
E
The placement of items A - E using the drop-down menus is as follows:
multicellulareukaryoticno cell wallheterotrophicautotrophicWhat are multicellular organisms?Multicellular organisms are living organisms that are composed of more than one cell. Unlike unicellular organisms, which are composed of a single cell that performs all of the organism's necessary functions, multicellular organisms have specialized cells that perform different functions within the organism.
Multicellular organisms can vary greatly in size and complexity. They can range from simple multicellular organisms such as sponges and jellyfish, to complex organisms such as mammals and birds. In complex multicellular organisms, cells are organized into tissues, organs, and organ systems that work together to carry out the organism's necessary functions.
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Complete question:
Identify the placement of items A-E using the drop down menus
Characteristics
Fungi
Plantae
Animalia
Body Type
Unicellular or
Multicellular
Multicellular
Cell Type
Eukaryotic
Eukaryotic
Cell Structure
Cell Wall
(made of chitin)
Cell Wall
(made of cellulose)
Nutrition
Heterotrophic
SOMEONE PLEASE HELP ME!!!!
A mechanoreceptor is a sensory receptor that responds to changes in pressure or movement. An example of a mechanoreceptor specialized for detecting muscle movement is shown in the diagram below. Which of the following best describes the nervous system change during muscle contraction?
An electrical signal begins at the spindle and is carried to the sensory neuron cell body, where it connects with interneurons that continue the signal to the brain best describes the nervous system change during muscle contraction.
What is a mechanoreceptor?A mechanoreceptor is a specialized sensory receptor that responds to mechanical stimuli such as pressure, touch, and movement. These receptors are found throughout the body, including in the skin, muscles, joints, and organs, and play a critical role in detecting and relaying information about the external and internal environment to the nervous system. Examples of mechanoreceptors include Pacinian corpuscles, which respond to pressure, and hair cells in the inner ear, which detect sound and balance.
The mechanoreceptor shown in the diagram is a muscle spindle, which is a type of mechanoreceptor that detects changes in muscle length and triggers a reflex response to maintain muscle tone and balance. When the muscle is stretched or contracted, the muscle spindle sends a sensory signal to the spinal cord, where it connects with interneurons that relay the signal to the brain for processing and interpretation. Therefore, option (A) is correct option.
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Order the following from 1-4 with 1 representing short-term impacts and 4 representing long-term impacts on climate: Ocean current changes Human activity Volcanic activity Earth's orbit
The order of impact on the climate is as follows:
Human activityVolcanic activityOcean current changesEarth's orbitHow do ocean current changes, human activity, volcanic activity, and Earth's orbit impact the climate?Human activity, such as the burning of fossil fuels, deforestation, and agriculture, can have immediate and significant impacts on the climate.
Volcanic activity can also have short-term impacts on the climate, as large eruptions can release large amounts of sulfur dioxide and other gases that can cool the planet for a few years.
Changes in ocean currents, such as the El Niño-Southern Oscillation (ENSO) in the Pacific, can have intermediate-term impacts on the climate, affecting weather patterns over several years.
Earth's orbit, on the other hand, has very long-term impacts on the climate, with changes in the planet's tilt and orbital shape occurring over thousands of years and affecting the amount and distribution of solar radiation received by the planet.
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why are viruses considered nonliving but bacteria are considered living?
Answer:
Look down below ↓
Explanation:
Viruses have no energy metabolism, they do not grow, they don't waste products, and they do not reproduce independently but must replicate by invading living cells.
Bacteria is considered living because it can do all these things that a virus can not do.
why anaerobic respiration is to have evolved earlier than aerobic respiration?
Which term describes foreign molecules that activate the immune system? antigens phagocytes lymphocytes antibodies
Antigens are the foreign molecules that cause the immune system to become active.
What kind of foreign molecules cause the immune system to respond?Antigens are any substances that the immune system can recognise and that can afterwards cause an immunological reaction. When considered dangerous, antigens can cause the body to respond with an immune response (for instance, if they potentially spread disease).
What do you call the chemicals that activate the immune system?antigen, a substance that can cause lymphocytes, the body's white blood cells that combat infections, to get activated by the immune system. An antigen is something that causes your immune system to produce antibodies in response to it. This suggests that because your immune system does not recognise the chemical, it is making an effort to fight it.
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Lab: Effects of Human Activity on Freshwater Resources lab report PLEASE!!!!!!!!!!
Answer: Pollutants change the pH of freshwater sources like lakes and groundwater. - When the quality of water changes, water may become unusable. - The appearance of water is not always a sign of its quality.
Explanation: Humans directly change the dynamics of the water cycle through dams constructed for water storage, and through water withdrawals for industrial, agricultural, or domestic purposes. Climate change is expected to additionally affect water supply and demand.