Answer:
B to replace less affective drug.
The reason for discovering a new drug is to replace a less-effective drug.
What is a drug?"It is a chemical substance, which, when administered to a living organism, produces a biological effect."Some of the drugs include: anti-depressant, CNS stimulants, analgesics, etc.Why some drugs become less-effective?As we use the drug for long time it creates a tolerance level, where our body fails to produce a response when administered by such drugs.Over the time, diseases undergo various types of mutation and cannot be treated by using the same drug that was used before. So, a new drugs are being discovered from time to time.Hence, the correct option is B. To replace a less-affective drug.
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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:
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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A longitudinal wave causes its medium to move in what direction?
Answer:
It causes the medium to move parallel.
Explanation:
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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The genetic code of organisms determines their traits. Which of the following DNA components make up the genetic code?
A hydrogen bonds
B deoxyribose sugars
C nitrogenous bases
D phosphate groups
The DNA component that makes up the genetic code is nitrogenous bases. The correct option is C.
What are nitrogenous bases?Nucleobases, also known as nitrogenous bases or simply bases, are nitrogen-containing biological compounds that form nucleosides.
These are then components of nucleotides, all of which are the basic building blocks of nucleic acids.
A combination of five nitrogenous bases is employed to build nucleotides namely adenine, guanine, cytosine, thymine (found only in DNA) and uracil (found only in RNA).
This in turn build nucleic acids including certain DNA as well as RNA. These bases are critical because their sequencing in DNA and RNA is how information is stored.
Nitrogenous bases are the DNA components that make up the genetic code.
Thus, the correct option is C.
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Which organism will have DNA most similar to the bird? Why?
The organism that has DNA most similar to the bird is a crocodile.
What is DNA?The full form of DNA should be deoxyribonucleic acid representing the molecule that comprises of the genetic code of organisms. This involved animals, plants, bacteria. etc. Also, it should be in the each and every cell in the organism.
Also, the crocodiles should be the closest living relative as compared to the birds that shared the common ancestor which live approx 240 million years ago.
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Continents are made of_____.
A.) played
B.) lithosphere
C.) crystal rock
D.) mantle rock
A continent is a large land mass and its surrounding shallow continental shelf. Both are composed primarily of granite, which is lighter than the liquid mantle of the Earth and therefore floats upon it like cork on water.
Granite would be the correct answer but i see you don't have that there, Lithosphere i would say may be the right answer. or this
The continents are made out of relatively brittle rock called the "Crust"
Choose the correct sequence of the prokaryotic operon. A) gene, operator, promoter B) promoter, operator, gene C) operator, promoter, gene D) operator, gene, promoter
Answer:
The correct answer is option B, that is, promoter, operator, gene.
Explanation:
In a prokaryote, just in front of the operator, the promoter is located, and just in front of the structural genes, the operator is located. All these in combination give rise to an operon.
Any gene, which codes for an enzyme or a structural protein is termed as a structural gene, in the lac operon, a structural gene codes for three distinct kinds of enzymes. A short sequence of DNA is situated just in front of the structural gene, which is known as the operator. An operator functions as a switch for transcription, that is, it monitors whether the process of transcription will take place or not.
Just in front of an operator, a sequence of a promoter is present, and for the transcription and translation of all the structural genes, the RNA polymerase needs to combine first with the promoter. In case, if no transcription is to take place, then the operator allows the repressor to bind with it and prevent the attachment of RNA polymerase with the promoter. Hence, the correct sequence of a prokaryotic operon is a promoter, operator, and gene.
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.
What are many earthworks intended to do?
Answer:
Earthworks are intended to appreciate nature in different ways.
Explanation:
The beauty of nature and the relationship of nature were shown in the earthworks.
Earth-works:
It was an art movement during the 1960s- 1970s especially in Great Britain. It is also known as land arts.
In this trend, artists create arts on land far away from the population center. Artists use the soil, stones, and vegetation to create an earthwork. From their artwork, they want to show the connection between humans and nature.
Some of them are small sculptures while others are very large. For example- titled Spiral Jetty was created in the Great Salt Lake extended up to 1500 feet.
Therefore, many earthworks are intended to show the beauty of nature.
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Before the Industrial Revolution (top picture), the bark of the trees was
light-colored. After the Industrial Revolution (bottom picture) the bark of
the trees was covered in soot and became dark-colored. The dark-colored
moths were then better suited for this new environment. This is an example
of *
During the movie, Mufasa talks to Simba about the kingdom. He says “Everything you see, exists together in a delicate balance… you have to respect every living thing from the tiny ant to the antelope.” Why do you think that Mufasa believes that all living things are important?
Answer:
Explanation:
Look i was supposed to play simba in the lion king so i know this. He says that because he is king so he has to make sure his kingdom is great or else people will turn on him. Hope this helps!!!
Answer:
The food chain is balanced and when there is is too many or too little of something somethingelse will over populate or have too little making more of something else making whatever that thing eats scarse and causes a chain reaction.
Explanation:
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 statement is true about cellular respiration and photosynthesis
Answer:
Where are the statements
Explanation:
Define climate
Please and thanks
Answer: Climate is the long-term average of weather, typically averaged over a period of 30 years. Some of the meteorological variables that are commonly measured are temperature, humidity, atmospheric pressure, wind, and precipitation.
Explanation:
Answer: climate means weather
Explanation:
climate means the weather that can take place in a setting for example in a rainforest in is mostly rainy and a little foggy that would be the climate there in the rainforest so basicly climate is where weather is expected or takes place.
hope this helps(:
What is the photosynthetic structure of plants
Answer:
What is the photosynthetic structure of plants?
The photosynthetic structure of plants is chlorophyl
Explanation:
Chlorophyls is contained in the chloroplast, it is the chlorophyl that gives green pigmentation that traps sunlight and enhances photosynthesis
what does the mitochondria do for our body, what benefits does it give?
Answer: Mitochondria are known as the powerhouses of the cell. They are organelles that act like a digestive system which takes in nutrients, breaks them down, and creates energy rich molecules for the cell. The biochemical processes of the cell are known as cellular respiration.
Explanation:
Answer:
Mitochondria provides energy to the body.
Explanation:
Mitochondria is an important organelle of the cell. Mitochondria is also called power house of the cell because it generates energy in the form of Adenine tri phosphate (ATP) by the breakdown of glucose molecules in the process of respiration. In the presence of oxygen, mitochondria produce more ATP while without oxygen very low ATP is produced.
(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
Choose the correct answers from the drop-down menus.
What are the rangers doing to restore the population of the Sierra Nevada yellow-legged frogs?
If the organisms that preyed on and competed with the yellow-legged frogs were removed from the affected lakes,
what would most likely happen to the population of the garter snakes?
Answer: 1) B 2) A
Explanation:
Answer:
1. removing fish from affected lakes
2. Its population will increase
Explanation:
What are 2 ways that meiosis leads to genetic variation? How do they lead to variation?
Answer:
1. Through random mutations that happen during the reproductive process.
2. Different pairs of chromatids join together
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
A certain reptile species is a herbivore and exists only on an isolated island. Which of the following would most likely result in the extinction of the reptile species over a period of twenty thousand years?
A. The reptile species produces many offspring with many unique traits, and the vegetation remains constant.
B. The reptile species produces few offspring with some unique traits, and the vegetation remains constant.
C. The reptile species produces few offspring with no unique traits, and the vegetation changes quickly.
D. The reptile species produces many offspring with some unique traits, and the vegetation changes slowly.
Answer:
i think its b
Explanation:
Final answer:
Option C, where the reptile species produces few offspring with no unique traits, and the vegetation changes quickly, would most likely result in the extinction of the reptile species over a period of twenty thousand years.
Explanation:
The most likely scenario that would result in the extinction of the reptile species over a period of twenty thousand years is option C. This is because if the reptile species produces few offspring with no unique traits, and the vegetation changes quickly, the species will not have the ability to adapt to the new environment and may struggle to find enough food to survive.
Without the ability to adapt and thrive in the changing vegetation, the reptile species would likely face extinction over time.
Differentiate between density dependent and density independent limiting factors and give at least two examples from the lesson of each
Answer:
Density-dependent limiting factors depend on the size of a population.
Density-independent limiting factors affect all populations the same, regardless of population size.
Density-dependent limiting factors include disease, parasites, competition for food, water, and shelter, and predaters
Density-independent limiting factors include natural disasters, climate, and human activity.
Explain
Put your faith in it
Answer:
Density-dependent limiting factors depend on the size of a population.
Explanation:
Density-independent limiting factors affect all populations the same, regardless of population size.
How are stars classified?
Answer:
Stars are classified by their spectra (the elements that they absorb) and their temperature. There are seven main types of stars. In order of decreasing temperature, O, B, A, F, G, K, and M.
Explanation:
O and B stars are uncommon but very bright. M stars are more common but dim.
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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are these correct ? im not too sure thank you
Answer: Not quite.
Explanation: Photosynthesis takes place in the chloroplast, not cellular respiration. The reactants of photosynthesis are carbon dioxide and water and the products are glucose and oxygen. The reactants of cellular respiration are glucose and oxygen and the products are carbon dioxide and water.
What do arrows in a food chain and food web represent?
Answer:
They represent where the flow of energy is going. Ex; a fish with an arrow pointing to a bear. The energy of the fish goes to the bear after the bear consumes the fish.
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.
help is my example biotic or abiotic?
Answer: The answer is BIOTIC
Explanation: I SHOULD BE BRIANLIEST ;)
The map below shows the State and Local Air Monitoring Stations (SLAMS). Each red dot represents one of nearly 4,000 air quality monitoring stations in the SLAMS network. Data from these stations is compiled so that levels of air pollutants can be assessed by the Environmental Protection Agency.
Image courtesy of the EPA
Suppose that recent data from the SLAMS network showed a general rise in air pollution levels. What would such data most likely suggest?
A.
That stricter air quality controls are necessary to reduce emissions.
B.
That air quality controls are no longer needed to reduce emissions.
C.
That the SLAMS network as a whole is not functioning properly.
D.
That air quality controls need to be relaxed to reduce emissions.
Answer:
Explanation:
A. is the correct answer