Answer:
the results are 3 away from being a 50/50 which are expected results
Explanation:
i flipped a coin 20 times and it landed on heads 13 times and tails 7 times
Mr. Chorma's science class built an electromagnet with a metal rod, a wire, and a battery. They day they built it, the electromagnet worked. The next day it did not work.What is the best explanation as to why the electromagnet did not work?
A
The battery was drained.
B
The battery wouldn't conduct electricity.
C
The circuit was closed.
D
The wire wouldn't conduct electricity.
They day they built it, the electromagnet worked. The next day it did not work is The battery wouldn't conduct electricity.
What happens when the wire of the electromagnet is attached to a battery?If you leave the wire connected long enough, the nail's magnetic domains will realign enough to make it a permanent magnet. But be careful! The current flowing through the wire makes the wire hot and drains the battery quickly.
Thus, option " B " is correct.
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Prior to the industrial revolution in England the peppered moth had light
coloration and lived on trees covered with light colored lichen. This
provided camouflage against predatory birds. There were a few dark
individuals in the population, but they were usually eaten by birds.
However, once the industrial revolution began the light-colored lichens
covering the trees were killed by sulfur dioxide emissions from the new
factories. Without the light background of the trees, the light moths were
more visible to birds and now the dark moths had a camouflage advantage.
in 1848. the dark moths comprised 1% of the population and by 1959 they
represented -90% of the population. What type of selection does this
demonstrate?
Directional Selection
Stabilizing Selection
Disruptive Selection
Final answer:
The change in the population of peppered moths from primarily light-colored to predominantly dark-colored during the industrial revolution demonstrates directional selection, where a shift occurs towards a phenotype that provides a survival advantage in changing environments.
Explanation:
The phenomenon described with the population of peppered moths (Biston betularia) during the industrial revolution is an example of directional selection. As the industrial revolution caused the death of the light-colored lichens on trees, darker moths had a survival advantage because their coloration provided better camouflage against a sooty environment. Overtime, the percentage of dark moths increased dramatically from 1% to 90%, indicating a shift in the population's phenotype towards those better suited for their environment. This change in the color of the moth population from light to dark constitutes directional selection, where one extreme phenotype is favored over others causing a shift in the population's genetic variation over time.
I need helpppp!!! ASAPPP
Which of the following provides the best description of the function of genes?
A. Ridding individual cells of waste products
B. Relaying information from the environment
C. Producing energy through cellular respiration
D. Controlling the production of specific proteins
list the usefulness of intracellular digestion by lysosomes
Answer:
list the usefulness of intracellular digestion by lysosomes?
intracellular digestion by lysosomes helps to digest food particle through phagocytosis and with the help of an enzyme in the cytoplasm
Explanation:
!00 pointsssss!!!!
See the attachmenttt and answer!!!
the answer is A. hope i was a help to you
Which phrases describe both lakes and ponds? Check all that apply.
Answer: The first and the third phrase apply.
Hope this helps! ^_^
Explanation:
Answer:
A and C
Explanation:
took it in edg and go it right
The law of segregation is the law which states that two factors controlling a characteristic separate and go to different
gametes.
TRUE
FALSE
Answer:
true
Explanation:
Answer:
Truw
Explanation:
PLEASE HELP
Which term describes viruses?
A: sterile
B: ginormous
C: minuscule
D: harmless
Answer: i would say minuscule
Explanation:
Stephanie cuts a five-meter-long piece of rope into five equal parts. What is the length of each piece of rope? 10 centimeters 100 centimeters 0.20 centimeters 200 centimeters
Answer:
100 Centimeters
Explanation:
There are 5 meters, and you cut it into 5 equal parts. This means that one part is 1 meter long. Then you would have to convert meters to centimeters. There are 100 centimeters in a meter. So that would make it 100cm x 1m= 100cm.
is the crus at a mid ocean ridge young or old?
Answer:
young
Explanation:
Most crust in the ocean basins is less than 200 million years old, which is much younger than the 4.54 billion year age of the Earth. This fact reflects the process of lithosphere recycling into the Earth's mantle during subduction.
Answer: Young
Explanation: Most crust in the ocean basins is less than 200 million years old, which is much younger than the 4.54 billion year age of the Earth.
A longitudinal wave causes its medium to move in what direction?
Answer:
It causes the medium to move parallel.
Explanation:
All cells are not the same because ?
Answer: there are many types such as animal and plant cells and you can see it in their components.
Explanation:
Cells differ from one another due to specialization and differentiation, where each cell type expresses only certain genes relevant to its function despite all of them having the same DNA. This allows for a variety of cell types with unique functions necessary for an organism's survival.
Explanation:All cells are not the same because they undergo specialization and differentiation. Just as actors read only their parts from a movie script, every cell in a multicellular organism contains the same DNA but only "reads" the part that is necessary for its unique function. This is the fundamental concept behind why a muscle cell, a liver cell, and a skin cell look and act differently, despite having an identical genetic blueprint. This specialized gene expression allows cells with the same DNA to become different cell types, enabling the diverse functions necessary for organismal development and survival.
For example, epithelial cells provide protection, bone cells support structure, immune system cells fight pathogens, and red blood cells transport oxygen. These variations among cells are essential for the growth, development, and maintenance of the body. Even unicellular organisms exhibit gene regulation in response to environmental changes, highlighting the importance of gene expression in cell function and diversity.
What do antlions have to catch their prey
Answer: The antlion constructs its pit by alternately digging and "flicking" grains of sand from the pit. ... Once the pit is constructed, the antlion partially buries itself at the bottom of the pit and awaits its prey.
A bird species enter the environment, but we do not know which berry color it prefers. Is the bush population more likely to survive if it has many berry colors or just one berry color?
Answer:
I would say many
Explanation:
Think about it. If there is one kind of berry, that is their only choice, when there are many colors, they have to choose, perhaps they will just choose something else since the colors are more appealing, or because they do not have as many since they are different colors
I really hope this helps u
Pls give a brainliest and a thx ;)
When bird species enter the population, they prefer berry color thus, the bush population survives with many berry colors.
Adaptation of berry colorA species of bird living in a tropical ecosystem survives by eating fruit. The climate of this location changes very quickly, and the ecosystem becomes too cold for fruits trees to survive. If the bird species cannot adapt to eat different sources of food, this species of bird will most likely eat many berry colors to survive. Berries are so important to birds.
Thus, the berry color is preferred by the birds to survive.
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which of these is a critical violation?
Answer:
A,B,E
Explanation: I honestly think its easy, but it is dirty, so its not d,c it dirty.
A critical violation refers to a major breach of norms or laws, such as crimes involving property damage, theft, or driving over the blood alcohol limit. However, not all violations are inherently negative, with some serving important social causes.
The term critical violation is often used in settings related to social norms and law. In the context of your question, a critical violation can be perceived as a significant breach of norms or laws.
For instance, it can pertain to crimes that involve destruction or theft of property without the use of force or threat, or behaviours that cross notable legal boundaries such as driving with a blood alcohol percentage over the state's limit, which is officially a crime.
It's important to clarify, though, that not all acts of deviance or norm-violation are inherently negative, such as certain civil rights actions that deliberately broke laws during the 1960s to push for racial equality.
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In a forest, how do decomposers help other organisms survive?
a. They release oxygen into the air that mammals breathe
b. They put nutrients into the soil that plants use to grow.
c. They provide shelter in forests where animals hide.
d. They use sunlight to make food for plants and animals.
Answer: B
Explanation:
Decomposers do exactly what they do in their name, they decompose matter and break them down so that their nutrients are recycled back into the soil. If it weren't for decomposers, there'd be dead waste everywhere and the soil would be depleted of nutrients. Hope this helped :)))
Decomposers help other organisms survive by putting nutrients into the soil
that plants use to grow.
Decomposers are group of organism that breaks down organic matter into
useable form for other organism or plants to grow.
They break down decaying or dead matters into smaller usable form.
This decomposition process adds nutrients to the soil and invariably aid the
growth of plants.
Examples of theses decomposers are fungi, bacteria, worms insect etc.
Therefore, decomposers put nutrients into the soil that plants use to grow.
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What is the term for traits evolved by organisms to help them survive more easily in their climate and biome
The term you are referring to is "adaptive traits" or "adaptive characteristics." Adaptive traits are specific features or characteristics that have evolved in organisms over time to help them better survive and thrive in their particular climate and biome.
These traits are the result of natural selection, a fundamental mechanism of evolution, where individuals with advantageous traits have a higher chance of surviving and reproducing, passing these traits on to their offspring.
Adaptive traits can take various forms, such as physical adaptations (e.g., camouflage, insulation, or specialized appendages for feeding), physiological adaptations (e.g., efficient temperature regulation mechanisms), or behavioral adaptations (e.g., migration patterns or foraging strategies). The key to their success is their compatibility with the specific environmental conditions of a given biome, enabling organisms to exploit available resources and cope with challenges, like extreme temperatures, food scarcity, or predation.
Ultimately, adaptive traits play a crucial role in shaping the diversity of life on Earth and are essential for an organism's survival and reproduction within its specific habitat.
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Brainstorm how you could use recombinant DNA technology to make normal E. coli bacterial cells glow green.
Answer:
In order to make E. coli bacterial cells glow green, we need to insert a gene that can be translated into the green fluorescent protein. This gene is well-known as gfp and can be inserted either in the DNA or plasmid of the bacteria. The genome insertion procedure would follow the conventional method where the DNA will be first cut using restriction enzymes and then would be ligated. This approach has been extensively applied to test the fate of bacteria in the environmental systems.
A schematic diagram on insertion of gfp in the plasmid of bacteria is shown in the figure. The left side diagram shows that gfp is inserted and right side figure shows glowing bacteria in the presence of UV.
The usage of recombinant DNA technology to make normal E. coli bacterial cells glow green should be explained below.
Usage of recombinant DNA technology:For making the E. coli bacterial cells glow green, here we required to insert the gene that should be translated into the green fluorescent protein. This gene should be called as the GFP also could be inserted either in the form of DNA or bacteria plasmid.
The insertion procedure should followed the conventional method in which the DNA should be fist cut via usage the restriction enzymes.
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Smallpox is a virus that causes a rash that then turns into painful blisters. The last known case of smallpox was in 1977. What is
the best explanation for the eradication of smallpox?
People are exercising more than they used to.
Genetic testing determines who is more prone to smallpox.
There was an increase in antibacterial products.
An effective vaccine was developed.
Save and Exit
Submit
Mark this and retum
Smallpox is a virus that causes a rash that then turns into painful blisters. The last known case of smallpox was in 1977. smallpox was eradicated when a vaccine was developed against it.
What is smallpox?The variola virus (smallpox virus) first appeared thousands of years ago and began causing illness and death in human communities, with smallpox epidemics occurring on a regular basis.
How was smallpox eradicated by the vaccine?The first successful vaccination was Edward Jenner's smallpox vaccine, which was launched in 1796. He discovered that milkmaids who had previously contracted cowpox were immune to smallpox, and that injected vaccinia protected against inoculated variola virus.Jenner scratched fluid from a cowpox blister into the skin of an eight-year-old boy named James Phipps. James had a single blister on the location, but he recovered quickly. Jenner inoculated the boy with smallpox particles again on July 1, but no sickness developed. The vaccine was effective.learn more about Smallpox here:
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The best explanation for smallpox eradication is the development of an effective vaccine, not increased exercise, genetic testing, or antibacterial products.
The smallpox vaccine, created by Edward Jenner in the late 18th century, was a groundbreaking medical advancement that played a pivotal role in eliminating the disease.
Unlike the other options provided, the success in combatting smallpox was not due to increased exercise, genetic testing, or an uptick in antibacterial products.
Exercise, while beneficial for overall health, is not a direct factor in smallpox eradication.
Genetic testing, though crucial for understanding susceptibility to certain diseases, wasn't the primary strategy for smallpox control.
Similarly, an increase in antibacterial products doesn't address the viral nature of smallpox.
The global smallpox eradication campaign, led by the World Health Organization (WHO), involved mass vaccination efforts and targeted interventions.
The vaccine's efficacy led to the interruption of transmission chains, ultimately resulting in the last known case in 1977.
The comprehensive vaccination strategy and international collaboration demonstrate the significant impact a well-developed vaccine can have in eradicating a deadly infectious disease, marking smallpox as the first human disease to be eradicated through intentional efforts.
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Which of the following personal health practices should a person follow to prevent heart diseases?
Use sunscreen frequently while staying outdoors.
Wash hands frequently to maintain proper hygiene.
Get the DNA modified to replace the faulty gene.
Include ample fruits, vegetables, and fiber in the diet.
Answer:
The last one
Explanation:
1. it helps reduse salt in blood
2. It helps blood flow
so the last on is right
Answer:
D. Include ample fruits, vegetables, and fiber in the diet.
Explanation:
This will help prevent heart diseases bc you are getting nutrients and also its the answer that makes the most sense lol.
hope this helped!
Any electricity charged object creates an electric field. Walking across carpet in wool socks can create an electric charge. This observation is evidence for which characteristics of electrical forces?
A)They generate electricity by contact.
B)They can be generated by electricity.
C)They can exert a force across a distance.
D)They are moving due to magnetism.
Answer: A)They generate electricity by contact
Explanation: triboelectricity can be simply defined as a phenomenon where static electricity is produced when two different materials are vigorously and continuously rubbed or come in contact with each other. This vigorous and continous contact allow electrons to jump from one material (atom) to another there by creating static electricity.
This characteristics is evident when an individual walks across a carpet while wearing a wool socks, as the wool and the carpet vigorously and continuously rub against one another, electrons are transfered from the carpet to the socks which spread all over the surface of the body. (The body becomes negativity charged while the carpet becomes positively charged) This is why the individual will feel a shock sensation when he or she goes on to touch the door knob due to the static electricity generated.
Final answer:
Walking across a carpet in wool socks and accumulating an electric charge exemplifies the characteristic that electrical forces can exert a force across a distance. This is reflected in the creation of an electric field that influences other objects without direct contact. (option C)
Explanation:
Walking across a carpet in wool socks and creating an electric charge is evidence of electric fields generated by the accumulation of static electricity due to friction, and this static charge can exert a force across a distance.
This is because electric charges produce electric fields that influence other charges, even when they are not in direct contact. Therefore, the observation supports the characteristic that electrical forces can exert a force across a distance, which corresponds to option C) They can exert a force across a distance.
Furthermore, the act of walking across the carpet and subsequently experiencing a spark upon touching a metal object is an example of charging by contact. The electrons transferred through friction between the socks and the carpet create an excess of negative charge on your body.
When this charge finds a path to equalize—as in touching a doorknob—a spark is observed due to the rapid movement of electrons to the neutral object.
Which if the following could be caused by an increase in carbon fixation
Answer:
your mom
Explanation:
stop using this app
Which of these is an example of replenishment of a renewable resource?
O
A. Clay is made into pottery.
O
B. Pennies are made from copper.
O. C. Fossil fuels are burned.
O
D. Trees grow back after a forest fire.
SUBMIT
Answer: D. trees grow back after a forest fire.
Explanation:the burned trees give the soil nutrients that the trees need to grow
Final answer:
The replenishment of a renewable resource is exemplified by trees growing back after a forest fire (option D). This natural regenerative process ensures that forests can recover and continue to provide resources over time.
Explanation:
An example of replenishment of a renewable resource is the growth of trees after they have been harvested or affected by a natural event such as a forest fire. Trees are part of Earth's renewable resources because they can regenerate and grow back, given the right conditions and time. This process is a natural one, where the forest ecosystem recovers over time, and new trees replace those that were lost. This aligns with option D: Trees grow back after a forest fire.
In the human body, is every organ a part of only one organ system? Or are some organs a part of two or more organ systems?a.Every organ is a part of only one organ system, which is necessary because organ systems work independently of one another.b.Every organ is a part of only one organ system, although organ systems often interact with one another.c.Some organs are a part of two or more organ systems. For example, the heart is a part of the circulatory and digestive systems.d.Some organs are a part of two or more organ systems. For example, the ovaries and testes are a part of the reproductive and endocrine systems.
Answer:
so your answer is D
Explanation:
An organ can be part of more than one organ system. For example, the ovaries produce hormones, which makes them a part of the endocrine system; the ovaries also make eggs, which makes them a part of the reproductive system as well.
hopet his helped! :D
Some organs are a part of two or more organ systems. For example, the heart is a part of both the circulatory and the nervous systems, while the stomach is a part of both the digestive and the endocrine systems.
What is an organ system?An organ system refers to a group of organs working together to perform a specific function or set of functions in the body. Each organ within a system has a unique structure and function that contributes to the overall purpose of the system.
For example, the respiratory system includes the lungs, trachea, bronchi, and alveoli, which work together to take in oxygen and release carbon dioxide. Other examples of organ systems include the digestive system, nervous system, cardiovascular system, and skeletal system. The efficient functioning of organ systems is crucial for maintaining overall health and well-being in the body.
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While exploring in Mexico, a scientist found a strange organism in an extremely salty underground water source. The organism does not have a nucleus, but does have a cell wall and cell membrane. After testing the cell wall, he found it to contain protein and glycoprotein. In which domain does this organism belong?
Group of answer choices
This organism belongs to the domain in this case - Archaea
ArchaeaArchaea is the domain of organisms that are called prokaryotic organisms, however, they are different from bacteria in many ways. These lack nucleus and are found in extreme conditions.
These organisms have a cell wall around the cell membrane and the basic component of the surface (S)-layer surrounding the cell are glycoproteins.
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What happens when molecules diffuse across the cell membrane? The molecules diffuse until all of them are outside the cell. The molecules move from areas of low concentration to high concentration. The molecules move from areas of high concentration to low concentration. The molecules diffuse until all of them are inside the cell.
Answer: The correct answer is from areas of high concentration to low concentration.
Explanation: Diffusion, by definition, is the process of molecules (any molecule) going down their concentration gradient (i.e. they are going from higher concentration to lower concentration). Hope that helped!
When molecules diffuse across the cell membrane, molecules move from areas of high concentration to low concentration.
Diffusion of molecules?In facilitated diffusion, molecules diffuse across the plasma membrane with the help of membrane proteins such as channels and carrier proteins. The concentration gradient of these molecules exists, so they have the potential to diffuse into (or out of) the cell.
With this information, we can conclude that when molecules diffuse across the cell membrane, molecules move from areas of high concentration to low concentration.
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In an ecosystem, primary consumers eat plants. Secondary consumers eat
primary consumers. Tertiary consumers eat secondary consumers.
What can be concluded from this information?
(A)
Plants need both carbon dioxide and water for photosynthesis to occur.
B.Different types of organisms within an ecosystem need each other to live.
C.Bacteria and fungi are needed to break down the dead bodies of producers
and consumers.
D Light from the sun is necessary for most ecosystems on Earth to get
going.
(Identify) the major types of water pollutants. Suggest ways to reduce the
levels of each type of pollutant in a water supply. **Hint: there are five
types
Answer:
Refer below.
Explanation:
Pathogens:We can lessen sewage wastewater by utilizing elective techniques for treatment like drying to create pellets utilized as characteristic.
Organic Matter:We can decrease natural waste by actualizing strategies, for example, treating the soil which can support great microbes and supplement development for horticultural use.
Organic chemicals: We can diminish the utilization of hurtful pesticides and manures and use options, for example, plants to repulse creepy crawlies, for example planting marigolds and basil with vegetables, since they are characteristic repellants. We can utilize dried waste from sewage plants as a more secure manure, which assists with decreasing pathogen contamination at the same time.
Heavy metals:We can line landfills, decrease reject that goes there by utilizing just recyclable materials, and utilize elective, greener cleaning specialists at home, for example, vinegar and lemon.
Physical agents: We can all the more intensely control mechanical and power plants. They ought to be disallowed from releasing warmed wastewater from their plants. Cooling tanks could be utilized to let the temperature of the water normally lessen, and an arrangement of filtration through penetrable and non porous stone, sand, and rock could be utilized to control the stream when the water is in the long run discharged. The cooled water could be sent to be utilized underway of elective oil, similar to that got from green growth, or utilized for arranging which speaks to 1/3 of water utilization in the normal American family unit. Also, elective uses for the high temp water could be discovered, such as utilizing to warm the structure and it's pipes framework through an arrangement of radiators.
All of the above options (d) are effective ways to reduce water pollution.
Chemical pollutants can be regulated by enforcing strict guidelines on industrial discharges, ensuring that harmful chemicals are properly treated before being released into water bodies.
Microbial pollutants, commonly found in sewage, can be reduced by improving sewage treatment processes, such as upgrading wastewater treatment plants and implementing advanced disinfection methods.
Sediment pollutants, which often result from soil erosion, can be mitigated by implementing erosion control measures such as planting vegetation along riverbanks, constructing sediment basins, and implementing soil conservation practices in agriculture.
By addressing each type of pollutant through these targeted strategies, we can significantly reduce the levels of contaminants in water supplies, safeguarding both human health and the environment.
Complete Question:
List the major types of water pollutants. Suggest ways to reduce the levels of each type of pollutant in a water supply.
a) Chemical pollutants - regulate industrial discharges
b) Microbial pollutants - improve sewage treatment
c) Sediment pollutants - implement erosion control
d) All of the above
a ___________ is the smallest unit of life?
Answer:
Cell
Explanation:
A cell is the smallest unit of a living thing.
Answer:
A cell is the smallest unit of life.
Explanation:
Cell is the smallest and basic unit of all living organisms. Some organisms are unicellular i. e. made of one cell and some organisms are multicellular i. e. made of more than one cell. In Unicellular organisms, single cell perform all functions and activities of the cell such as excretion, reproduction and digestion etc, while in multicellular organisms, there are specific cells for each activity.
Name one type or group of plants that have vascular tissue.
A.ferns
B.mosses
the correct ans isA(ferns)
Answer:
Ferns
Explanation: