Hello. Your question is incomplete. The complete question asks for the correct answer to be found based on Catalase is an essential enzyme in living beings since all cells need it.
Answer:
B. Cells only function within a specific temperature range because enzymes only function within a specific temperature range.
Explanation:
Catalase needs to be present in all cells of the living organism because it is responsible for the decomposition of hydrogen peroxide that cannot stay inside cells for long periods of time. Following this type of reasoning, we can say that it is necessary to maintain a constant temperature for the enzymes of an organism to function well because all enzymes have a specific temperature range, even catalase.
The specific temperature range determines that the enzymes will only work within that range. Therefore, an environment where the temperature is below or above that specific range, can prevent the enzyme from functioning and even cause irreversible damage to the enzyme.
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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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:
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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Which area of this sound wave represents the greatest rarefaction?
Answer:
Its A i had hos question in usatestprep
Explanation:
Answer:
A represents a rarefaction
Explanation:
This is the area where the density of the wave is lowest.
"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.
14. What are the three types of muscle?
skeletal, smooth and cardiac hope these helped
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
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 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.
A car is traveling 75 miles per hour. How many hours would it take to
cover 250 miles? *
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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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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.
according to the dichotomous key organism 3 is a
A) leech
B) bristle worm
C) water scorpion
D) dragonfly nymph
Answer
The correct answer is A) leech
Explanation:
According to the dichotomous key organism 3 is a leech. Therefore, option (A) is correct.
What is a dichotomous key?A dichotomous key is a tool used by biologists to identify organisms based on their characteristics. It consists of a series of questions with two possible answers for each question. By following the path of the key, the user can narrow down the possible identities of the organism until a final identification is reached.
Dichotomous keys are often used to identify species in fieldwork and can be based on physical characteristics such as color, size, and shape, or other traits such as behavior, habitat, and geographic range. These keys provide an efficient way to identify organisms and are widely used in fields such as ecology, botany, and zoology. However, the accuracy of a dichotomous key depends on the quality and specificity of the questions used and the expertise of the user in interpreting the results.
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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.
Why is it necessary to genetically engineer the bacteria to produce insulin instead of inserting the insulin gene in humans?
Answer:
????????????????
Explanation:
RDNA technology made it possible for bacteria to express an insulin gene from humans for production of insulin synthetically.
What is recombinant DNA technology?Alteration of genetic material from one organism to another, to obtain desired and enhanced genetic characteristics in recombinant organism, is called as recombinant DNA technology.
In this method different genetic material from different organisms can be combined to develop desired characteristics, for example, DNA from two different species is joined together, and the recombinant DNA molecule is then inserted into host organism to produce new genetic combination with higher medicinal, scientific or agricultural values.
Genetically modified bacteria are used for production of human insulin, which cause less immune reactions as compared to the pig or cow version of insulin.
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Which of the following mutations would most likely be passed along to an organism's
offspring?
A. Mutation that occur during crossing over during the prophase stage of mitosis
B. Mutations that occur in both DNA strands synthesize do the S-phase of mitotic cell cycle
C. Mutations that involve translocation of chromosomes in gametes
during meiosis
D. Mutations that occur in Somatic cells During cell division
Mutations that involve the translocation of chromosomes in gametes during meiosis are likely to be passed to offspring (Option C). It is because mutations are inherited from germinal cells.
Mutations and MeiosisMeiosis is a cell division by which a cell produces four daughter germinal cells having half of the genetic material.
Moreover, a mutation is any alteration in the genetic material of the genome of an organism.
Germinal mutations can be inherited because they occur in the germinal meiotic cells, whereas mitotic (somatic) cells are not inherited.
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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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Answer:
I believe it is b
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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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Can you please help me
Answer:
a survey found 65 percent...
Explanation:
I'm pretty sure
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.
Please help me this is really hard to understand it’s a matching solving for physiology
What is NOT a physical change
A. Getting clothes wet
B. Burning a candle
C. Breaking glass
Answer:
a
Explanation:
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:
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.
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
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
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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_____ 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.