Answer:
Although the mRNA contains the same information, it is not an identical copy of the DNA segment, because its sequence is complementary to the DNA template. Transcription is carried out by an enzyme called RNA polymerase and a number of accessory proteins called transcription factors.
Explanation:
DNA is transcribed into mRNA and this mRNA has the complementary sequence of DNA but is not identical to DNA.
What is transcription?The mechanism for transferring genetic information becomes more complicated if both strands of DNA serve as transcriptional templates.
If both strands of DNA serve as transcriptional templates, dsRNA would be produced, preventing the synthesis of proteins.
Because its sequence is complementary to the DNA template, the mRNA is not an exact replica of the DNA segment even though it includes the same information.
Therefore due to complementary not identical sequences of mRNA during transcription whole DNA molecule is not copied to mRNA.
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Can you please help me
Answer:
a survey found 65 percent...
Explanation:
I'm pretty sure
Describe two types of living things that biologists could study. Think about types of living things that are not in the ocean — what categories of living things are on land?
Answer:
Following are the two types of living things that biologists could study:
1) Animals
2) Plants
Explanation:
As we know plants and animals are the most important organisms. Animals has further categories of living things are on land:
1) Birds
2) Mammals
3) Reptiles
4) Amphibians
Fishes are not included because they are in water but not on land.
If a dog starts to put its paw down on a sharp stone, the tough skin skin protects underlying structures from damage. Additionally, touch receptors in the skin send sensory signals to the spinal cord. The spinal cord then sends a signal to the muscles to lift the paw rather than continuing to press down. In this scenario, the dog may experience discomfort but avoid injury.
What two body systems are being used to protect the structures beneath the dog's skin and signal the muscles to lift the paw?
A.
integumentary and nervous systems
B.
circulatory and nervous systems
C.
circulatory and lymphatic systems
D.
integumentary and lymphatic systems
PLZZ HELP QUICKKK
The two body systems being used to protect the structures beneath the dog's skin and signal the muscles to lift the paw are the integumentary and nervous systems, which are in option A.
What is the organ system?The dog's response to the sharp stone involves the coordinated action of two body systems: the integumentary system and the nervous system. The integumentary system consists of the skin and its associated structures, including hair, nails, and glands. The skin acts as a protective barrier between the external environment and the underlying tissues, and it has specialized structures, such as tough, keratinized layers in the paw pads, that can withstand pressure and protect the sensitive tissues underneath.
Hence, the two body systems being used to protect the structures beneath the dog's skin and signal the muscles to lift the paw are the integumentary and nervous systems, which are in option A.
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Blue poppies native to China were grown at a plant-breeding center in California. The plants with the thickest leaves were most likely to survive and reproduce in the drier climate. After several generations, the percentage of thick-leaved plants had increased by 42%. This adaptation of the poppies to their new environment is due to _____. See Concept 23.4 (Page 495) Blue poppies native to China were grown at a plant-breeding center in California. The plants with the thickest leaves were most likely to survive and reproduce in the drier climate. After several generations, the percentage of thick-leaved plants had increased by 42%. This adaptation of the poppies to their new environment is due to _____. See Concept 23.4 (Page 495) disruptive selection neutral variation directional selection genetic drift stabilizing selection
Answer:
directional selection
Explanation:
Directional selection is a type of natural selection where individuals exhibiting an extreme phenotype for a given trait are favored over the mean or other extreme phenotype. This type of selection can lead to drastic and fast changes in allele frequencies between generations in a population, being particularly important in speciation processes. Directional selection is common under environmental changing conditions (e.g., weather, climate, food availability, etc) or when individuals migrate to other regions in order to adapt to new environmental pressures.
Please help me this is really hard to understand it’s a matching solving for physiology
Corvids are a large family of birds that includes many species of ravens, jays, crows, and magpies. It was recently discovered that numerous birds in this family are an important vector for the West Nile virus because infected mosquitoes may pass the virus to these birds. Not to mention other species: there are over 35 species crows across the world alone and more than 3,500 species of mosquitoes across 41 different genera. Taken together, these facts demonstrate that it is critical that global societies and scientists
Complete question:
Corvids are a large family of birds that includes many species of ravens, jays, crows, and magpies. It was recently discovered that numerous birds in this family are an important vector for the West Nile virus because infected mosquitoes may pass the virus to these birds. Not to mention other species: there are over 35 species crows across the world alone and more than 3,500 species of mosquitoes across 41 different genera. Taken together, these facts demonstrate that it is critical that global societies and scientists
A) use more detailed common names to identify species,such as the "violet crow" or the "American crow."
B) use the genus and specific epithet scientific name to identify taxa.
C) use DNA sequences when referring to a particular species.
D) track diseases like West Nile virus using remote sensing technology on birds to help predict illness spread.
E) invoke higher levels of the classification system, such as kingdom and domain, when referring to a species.
Answer:
D) track diseases like West Nile virus using remote sensing technology on birds to help predict illness spread.
Explanation:
The West Nile virus affects many animals, among which there are many bird species. Birds turn to be one of the most important ones, not only because the virus keeps on nature through the cycle mosquito-bird-mosquito, but also because they act as dispersal organisms that carry the virus through long distances.
Due to its mortality and the many organisms it affects, it becomes a need to track the affected birds by the West Nile virus to make prevention through predictions about the distribution area and the periods in which it is more feasible for the virus to attack. It is particularly interesting to apply these tracking technologies to birds. They are severely affected by the West Nile virus and might carry and spread it faster in broad areas due to migration.
Getting to know
the environmental conditions under which the virus is more active,the recognition of the local mosquito species that are dangerous in each particular area, the migration routes of involved birds, and letting people know about all the prevention measurementsare the tools that provide higher chances to avoid the fast spread of the illness.
What do you think would happen to the population of rabbits, if the population of foxes decreased?
Answer:
the population of rabbits might increase
Explanation:
With less predators to eat them, the rabbit population will likely go up if the fox population decreases; assuming there are favorable factors such as plenty of food and habitat for the rabbits. At some point, there is a maximum limit to the number of rabbits that a certain location can hold. Once this limit is reached, (some of) the rabbits will migrate elsewhere or unfortunately die off.
As the rabbit population increases, the fox population may rebound and start increasing again. This is due to more food being available to the smaller amount of foxes, and there is less competition for food. So the rebounding fox population will likely bring down the rabbit population to a point where food will get more scarce for the foxes. This cycle repeats itself where one population increases while the other decreases, and vice versa. They are very strongly linked together. It's also possible that both will increase together if environmental factors are favorable, but they could easily decrease together if a habitat is being destroyed for instance. It will depend on the circumstance.
A population of mosquitoes is exposed to the pesticide DDT for several generations. At the end of that time, most individuals in the population are resistant to DDT. The most likely reason is that:
A. random mutations in each generation made mosquitoes resistant to DDT.
B. some individuals in the original population had the mutations that led to resistance.
C. DDT caused the mutations that led to resistance.
D. somatic mutations in the original population were passed on to subsequent generations.
E. by chance, new mutations that led to DDT resistance arose after DDT was used.
Answer:
B
Explanation:
A population of mosquitoes is exposed to the pesticide DDT for several generations. At the end of that time, most individuals in the population are resistant to DDT and the most likely reason is that some individuals in the original population had the mutations that led to resistance. Option B is correct.
What is mutation ?Mutation is the change in which there is slight change in the genome sequence of a DNA or RNA along with the gene. The mutation lead to various types to adaptations along with the diseases.
Resistance is the condition when the species on the multiple exposures develop certain kind of adaptations to it and these traits are sometime inherited sometimes not inherited.
Mutations are friendly as well where sometimes a disease causing mutation can be altered with the further mutation in it.
Therefore on the multiple exposure it led to condition of resistance in the species.
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"You are finished running the bases, you are sweating and you feel thirsty. What body systems are interacting in this case? Support you claim with evidence and explain you reasoning."
Answer:
Following are the two systems which makes you feel thirsty and sweating,
1. Nervous system makes you feel thirsty - hypothalamus play a key role in the regulation of thirst.
2. The integumentary system makes you sweat - it is an organ system consisting of the skin, hair, nails, and exocrine glands which regulates sweatig depending on the elevated temperature of the body.
If a dolphin has 44 chromosomes in its body cells, how many chromosomes will it have in an egg cell?
Answer:
The karyotype of the bottlenosed dolphin and the pilot whale have been described and compared from a karyological evolutionary point of view. Both species have 44 chromosomes and the two chromosome complements are strikingly similar.
Explanation:
Someone pls answer my last question smh
Answer:
let me see what it is
Explanation:
Answer:
ok
Explanation:
Melissa is investigating how different types of music affect student heart rates. what is the dependent variable?
Answer:
The dependent variable is the student's heart rate
Explanation:
the student heart rate is what is being observed in relation to the type of music being played.
The human body temperature is normally 98.6°F. As a person exercises, the body temperature starts to increase. As a result of the increased body temperature, the perspiration process
begins to cool the body. Which best describes what the body is doing when it perspires?
A. increasing osmosis
B. reducing transpiration
C. controlling metabolism
D. maintaining homeostasis
Answer:
.A. increasing osmosis
_____ can be passed from mother to child via breast milk.
Answer:
3 viruses CMV, HIV and HTLV-I frequently cause infection as a result of breast milk transmission.
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A car is traveling 75 miles per hour. How many hours would it take to
cover 250 miles? *
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14. What are the three types of muscle?
skeletal, smooth and cardiac hope these helped
The classification of some organisms has changed. Which new process is used to reclassify organisms?
A. Organisms are now given Latin-based scientific names.
B. Structures are now examined at the molecular level.
C. Organisms are now divided into three kingdoms.
D. Structures are now used to classify organisms.
Answer:
C. Organisms are now divided into three kingdoms.
Explanation:
In the early 1860s, a German scientist named Ernst Haeckel suggested using a three kingdom system of classification. Haeckel's three kingdoms were Animalia, Plantae, and Protista.
Two equal strips A and B were from a potato whose cell was 30% of sugar. The strip A was placed in a solution of 10% sugar concentration while B was placed in 50%sugar concentration. What change was expected in strip A and B
Answer:
I don't know
sorry I didn't understand anything
What is NOT a physical change
A. Getting clothes wet
B. Burning a candle
C. Breaking glass
Answer:
a
Explanation:
Displacements that occur in opposite directions are ________ from each other to find the total displacement.
Answer:
Displacements that occur in opposite directions are subtracted from each other to find the total displacement.
The coded information of a DNA molecule is determined by the
A .sequence of amino acids.
B .number of enzymes.
C. sequence of sugar-phosphate units
D. sequence of nitrogenous bases.
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Answer:
A- Chromosome, DNA, Gene
Explanation:
Chromosomes have two sister chromatids that connect at the centromere forming a shape similar to an X. DNA is found in a double helix formation, including Adenine, Thymine, Guanine, and Cytosine. Genes are found per singular section of the DNA double helix.
Answer: A
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How is wastewater used in water recycling programs? WILL GIVE BRAINLEST HELP ASAP
Answer Choices:
drinking water
sprinkler systems
virus filtration
chemical pollution
Answer:
Sprinkler systems
What paths do hurricanes follow?
a.) cold deep currents
b.) warm deep currents
c.) cold surface currents
d.) warm surface currents
NEED ASAP
Answer:
Warm surface currents
Explanation:
The path of a hurricane greatly depends upon the wind belt in which it is located. Hurricanes draw their energy from the warm surface water of the tropics, which explains why hurricanes dissipate rapidly once they move over cold water or large landmasses.
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how do Asian elephant move
Answer:
QUESTION:
how do Asian elephant move
ANSWER:
https://www.nationalgeographic.com/animals/mammals/facts/asian-elephant
Explanation:
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Water molecules at the surface of a body of water tend
to pull inward and resist force which is why some insects
look like they are floating on top of water.
a) cohesion
b) density
c) surface tension
d) adhesion
Answer:
surface tension.
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What does the prefix “geno” mean, and what is a biology term that uses PSR?
Answer:
The prefix for "geno"- Race, Kind, Family
PSR- Phosphate Starvation Response
Explanation:
2. List five things that are found in terrestrial ecosystems.
Answer:
Explanation:
tundra,
taigas,
temperate deciduous forests,
tropical rainforests,
grasslands, and deserts.
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Which statement describes a primary function of the cell wall of a plant cell?
Answer:
I DON'T SEE OPTIONS, BUT HERE IS MY GUESS
It is for support.
Explanation:
Plant cells lack necessary support without their cell walls. An animal cells usually have skeleton of some sort to support it, so they don't need cell walls. Plants, on the other hand, don't have skeletons.