Great Question! The function of DNA polymerase is to replicate, proofread and repair the DNA.
Why do complex organisms need specialized cells
Answer:
without them complex organisms cannot perform different functions
Explanation:
apex
Complex organisms require specialized cells to perform specific functions efficiently, allowing for the division of labor and optimized functioning of the organism.
Complex organisms, such as humans, consist of numerous specialized cells to support their intricate physiological and functional requirements.
Several reasons explain why specialized cells are essential in complex organisms:
Division of Labor: Specialized cells allow for a division of labor within an organism.
Each type of cell is uniquely adapted to perform specific functions, such as nerve cells transmitting signals or red blood cells carrying oxygen.
This specialization ensures that each task is performed efficiently and accurately.
Increased Efficiency: Specialized cells are highly efficient at their designated functions.
For instance, muscle cells contract with great force, while absorptive cells in the intestines have structures that maximize nutrient absorption.
This efficiency optimizes the overall functioning of the organism.
Adaptation to Environment: Complex organisms encounter diverse and often changing environments.
Specialized cells can adapt to these environmental variations. For example, skin cells can protect the body from external threats, while immune cells can fight infections.
Energy Conservation: Specialized cells can conserve energy by performing specific tasks.
This energy efficiency is crucial for maintaining the overall health and longevity of the organism.
Structural Organization: Specialized cells contribute to the structural organization of tissues and organs.
The arrangement of different cell types into tissues and organs enables the complex coordination of various physiological processes.
Reproduction: Some specialized cells, like germ cells, are essential for reproduction.
They carry genetic information, ensuring the continuation of the species.
Specialized cells are necessary in complex organisms because they enable efficient functioning, adaptation to varying conditions, energy conservation, structural organization, and reproduction.
This specialization is a fundamental aspect of the diversity and success of complex life forms.
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when a chemical has occured on you clothes you should ?
Answer: Tell your teacher and if you must remove your shirt if it is an acicic chemical
Explanation:
Which of these is a density-dependent factor
Answer:
the answer is epidemic
Explanation:
Answer:
space
Explanation:
Which structure is labeled X in the diagram below?
A. ribosome
B. Lipid envelope
C.Protein tail
D. capsid protein
Answer:
Option D
Explanation:
Diagram is attached.
Capsid protein is a form of structural protein which usually forms part of a complex which later produces protective shell around the nucleic acid in a virus. It is also referred to as coat protein or head protein.
Capsid acts as a distinguishing feature for identifying an integrated viral genome, plasmids and other genetic material of viruses. In fact, viruses are termed as organisms that encode capsid proteins.
Hence, option D is correct
true or false
To sustain fossil fuel resources, alternative sources of energy should be used.
Drip irrigation uses more water and is not helpful in sustaining water use.
Limiting erosion, disposing of mining waste, and limiting water pollution from the mine helps sustain land use.
Deforestation is helpful in sustaining trees.
Answer:
1. The renewable sources of energy are the alternative sources of energy that should be used in order to maintain the resources of fossil fuel. Thus, the given statement is true.
2. A type of micro-irrigation approach in which water is dripped slowly into the roots of the plants is considered as drip irrigation. Thus, the given statement is false as water is saved with the help of drip irrigation.
3. Restricting erosion, disposing of mine waste, and limiting water pollution from the mine helps in maintaining the use of land. Thus, the given statement is true.
4. Deforestation, that is, cutting of trees cannot be considered beneficial in sustaining the lives of trees. Thus, the given statement is false.
Answer:
true false true false
Explanation:
got it right edge 2022
What is the complementary base of adenine in DNA?
guanine
cytosine
thymine
uracil
Answer:
Thymine Is the Answer To The Question
Explanation:
Why would muscle cells need hundreds more mitochondria than any other cell in the human body?
Answer:
Mitochondria is the Powerhouse of the cell.
Explanation:
You use your muscles for basically everything you do. So, it wouldn't be more surprising if the muscles need more energy. You need them to have more energy or you wouldn't be able to do anything.
what is the genus name of ferns
during wich process is ethanol produced
A:lactic acid fermentation
B:alcohol fermentation
C:citric acid cycle
D:electron transport chain
Ethonal is produced during b. Alcohol fermentation that converst sugars into ethanol.
In a beetle species the red color is dominant over the white color. What is the genotype of any red beetle resulting from this species?
1Points
A
red and white alleles present on one chromosome
B
red and white alleles present on two chromosomes
C
a red allele present on both homologous chromosomes
D
a red allele present on at least one of two homologous chromosomes
Answer:
Option D, A red allele present on at least one of two homologous chromosomes
Explanation:
It is given that in a beetle species the red color is dominant over the white color. Thus, in order to have a offspring of red color at least one of the two homologous chromosome must have red allele.
This can be further understood from the cross below -
Suppose one of the parent is homozygous red with genotype "RR" and other parent is homozygous white with genotype "rr"
If a cross is carried out between the two parents, the following offsprings will result -
RR x rr
Rr, Rr, Rr, Rr
Since there is no co dominance, thus the dominant allele will express itself completely and hence at least one of the homologous chromosome of offspring must have red color allele.
Which of the following is caused by differences in ocean water density?
A. surface currents
B. Deep currents
C. waves
D. Coriolis effect
Answer:
B. Deep currents
Explanation: according to google
Final answer:
Deep currents in the ocean are caused by variations in water density due to temperature and salinity differences; this process is known as thermohaline circulation.
Explanation:
The question pertains to oceanic phenomena. The correct answer is B. Deep currents. Deep ocean currents are driven by variations in water density, which are typically caused by differences in temperature and salinity, a process known as thermohaline circulation. Unlike surface currents, which are primarily driven by wind, deep currents are a key component of the global conveyor belt, moving water masses through the deep ocean basins. These density-driven currents play a crucial role in regulating the Earth's climate by redistributing heat around the planet.
The feathers of a male goldfinches become brightly colored each spring. Which best describes why the color of the feathers change each year?
Answer:American Goldfinch follows this pattern. Beginning in September, and continuing for six to eight weeks, they molt all of their feathers, ending up with a completely new and pristine set of feathers (and drab colors) as they head into the winter. In the spring, as they grow new body feathers the males especially transform into bright yellow breeding plumage, but the wing and tail feathers remain from the previous fall. As these wing feathers get older the pale buff edges fade to white and disintegrate, so that by the end of the summer the wings look essentially all black. And in September another complete molt begins.
Explanation:
Final answer:
The brightening of male goldfinches' feathers each spring is due to hormonal changes, primarily an increase in testosterone, linked to the breeding season. This change signals the male's health and genetic fitness to potential mates, a phenomenon known as sexual selection.
Explanation:
The feathers of a male goldfinches become brightly colored each spring primarily due to hormonal changes related to the breeding season. As the days lengthen in spring, there is an increase in the secretion of testosterone, which triggers changes in appearance and behavior in many songbird species, including goldfinches. This hormonal surge leads to the development of brightly colored feathers, which are used to attract females. The brighter and more vivid the plumage, the more likely a male is to attract a mate, as it signals good health and genetic fitness. This is an example of sexual selection, where traits that are favorable for mating are selected for over generations.
In addition to attracting mates, the change in feather coloration can also be tied to other behaviors such as singing and territory defense, which further enhance a male's chances of reproducing. This phenomenon is not unique to goldfinches but is observed in various bird species, where males often exhibit brighter colors or more elaborate behaviors to attract females.
The image shows a sandstone formation with visible bands of different colors. What do the bands indicate about how this sedimentary rock was formed? Choose two answers
A. The rock was made from more than one type of material
B. Water was absent during the compaction and cementation process
C. Sediments and other matter were deposited in layers before lithification
D. The rock was stretched horizontally by the pressure from surrounding rocks.
E. Layers of hot liquids in the rock cooled and solidified at different temperatures
Answer:
A. The rock was made from more than one type of material
C. Sediments and other matter were deposited in layers before lithification
Answer:
Option A, The rock was made from more than one type of material
Option C, Sediments and other matter were deposited in layers before lithification
Explanation:
The process of lithification involves reduction of water within the pores of rock when external force and pressure is applied. After this process the process of stratification starts. Stratification leads to formation of layer of different rock type ( different composition and material) under the application of pressure and temperature as shown in this image.
Hence, option A and C is correct.
Two abiotic factors that affect an ecosystem are:
Answer: water and light
Explanation:
Abiotic factors are non living things that affect biotic factors for an example plants need water and sunlight to live which are abiotic factors
The most powerful severe storm is the ___?
Explanation:
The most powerful severe storm is typically a supercell thunderstorm, known for its rotating updraft called a mesocyclone, which can produce tornadoes, large hail, and damaging winds.
These are all a source of _____ on the earth
A) wind
B) water
C) climate
D) natural disaster
Francesco Redi performed an experiment in 1668. In the experiment, he placed rotting meat in two jars. The first jar was left open. After a few days, fly larvae were found on the decaying meat inside. The mouth of the second jar was covered with gauze. After a few days, the decaying meat inside was free of fly larvae, but larvae were found on the gauze. This experiment supports the hypothesis that -
Answer: fly larvae only come from adult.
Explanation: JLab answer
The experiment performed by Francesco Redi hypothesizes that new organisms can be formed from pre-existing ones.
What do you mean by Larvae?Larvae may be defined as an immature and active form of insects that differs from adults both physically and functionally.
Francesco Redi performed his experiment for proving the evidence against the theory of spontaneous generation along with Lazzaro Spallanzani and Louis Pasteur.
Therefore, the experiment performed by Francesco Redi hypothesizes that new organisms can be formed from pre-existing ones.
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In your own words, justify the statement, “oceanic conditions determine human activities
Answer:
The statement "oceanic conditions determine human activities" may be interpreted in many ways.
1. Oceanic conditions determine human activities in that the moon cycle influences the tide. As the moon cycle is said to greatly influence human activity, and the tide changes as the moon does, it may also be concluded that the tides have a similar influence on human activity.
2. Weather conditions may also influence oceanic conditions.
a) Hurricanes and typhoons occur in the ocean and if they make landfall, humans are sometimes required to evacuate the location they will affect. The process of evacuation, and the reparations necessary to human civilization afterward, are both examples of oceanic conditions being influential to human activity.
b) Flooding and tsunamis may also result in evacuation, and damage to human civilization.
c) Global warming, which is resulting in the melting of the polar ice caps, contributes to rising sea levels. Rising sea levels are also oceanic conditions that may affect human civilization in the forms of flooding, erosion, and the ocean expanding, and also determine human activities.
1)In any food chain or web, the original source of energy is.
A)the sun.
B)Earth.
C)the producers.
2)During photosynthesis ____energy is converted into energy
A)solar,usable chemical
B)light;kinetic
C)usable chemical;potential
3)what do we call the FIRST organism in any food chain to get energy directly from a producer?
A)primary consumer
B)autotroph
C)plant
A is the correct answer
Answer:
a for all of them
Explanation:
just completed it
How can sunspots affect Earth’s climate? An increase in sunspots could cause an increase in Earth’s temperature. The magnetic pull of sunspots could change the shape of Earth’s orbit. A decrease in sunspots could cause an increase in Earth’s temperature. Sunspots can contribute to the buildup of greenhouse gases.
THE ANSWER IS A
Answer:
The answer is A
Explanation:
Sunspots are storms on the sun's surface that are marked by intense magnetic activity and play host to solar flares and hot gassy ejections from the sun's corona. Scientists believe that the number of spots on the sun cycles over time, reaching a peak—the so-called Solar Maximum—every 11 years or so.
An increase in sunspots could cause an increase in Earth’s temperature, thereby affecting Earth’s climate.
What are sunspots?Sunspots are dark areas in the Sun produced by storms on its surface, where the magnetic field (magnetic pressure) is really strong.
Sunspots reach very high temperatures that range from 3,000 to 3,700 degrees (Kelvin degrees).
Sunspots can affect the Earth's climate and the magnetic field of our Earth planet.
In conclusion, an increase in sunspots could cause an increase in Earth’s temperature, thereby affecting Earth’s climate.
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An organism is heterozygous for a gene that follows Mendel's law of dominance. Which allele will be expressed as its phenotype?
A. The recessive allele will be expressed.
B. The dominant allele will be expressed.
C. Neither allele will be expressed.
D. Both alleles will be expressed.
Answer:B
Explanation:
Answer:
Option B is correct.
Explanation:
When we cross between parents are pure with different alleles with the same traits, only one form of the trait will appear in the next generation. Offsprings dominant trait will be expressed in the phenotype. So if the individual with heterozygous that is one allele with dominant and other with recessive, only dominant allele will be expressed.
Which celestial objects are left over from the early solar system and did not form into planets?
A. Saturns rings
B. Jupiter’s moons
C. Pluto and charon
D. Asteroids
Answer:
Option (D)
Explanation:
Asteroids are defined as the rocky materials that are of variable size and abundantly present in space. These are mostly found in the asteroid belt that is present between the planet Mars and Jupiter, where they frequently collide with each other and revolves around the sun.
Asteroids are considered to be the particles (objects) that remained in the universe right after the formation of the solar system that has taken place about 4.6 billion years ago. These materials did not form into planets, whereas they are oriented in a scattered manner in space. They can sometimes enter the earth's atmosphere and can cause a tremendous effect if it strikes the earth's surface.
Thus, the correct answer is option (D).
Which of the following is true about equinoxes?
A. They occur in June and December
B. The sun’s vertical rays are striking either 23.5°S or 23.5°N
C. Days and nights are equal in length everywhere
D. The length of daylight in the Arctic and Antarctic Circles is 24 hours
C. Days and nights are equal in length everywhere.
In equinoxes, the nights and days are equivalent in length everywhere.
What is an equinox?It is defined as the time when the plane of the equator of the Earth passes via the geometric center of the Sun's disk. This takes place two times every year, that is, around 20th March and 23rd September. It is the time, when the visible Sun's center is directly over the equator.
Equinox in other words is known as equal night. There are two equinoxes, that is, autumnal equinox and vernal equinox. The falling of the Sun rays takes place directly over the equator at noon, when the sun crosses celestial equator. Therefore, there is equivalent length of night and day in the two hemisphere.
Thus, the correct answer is option C, that is, days and nights are equal in length everywhere.
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14. As a result of the fungus infection, the change
in moth wing color distribution would most
probably occur by the
(1) production of sex cells by mitosis
(2) natural selection of favorable variations
(3) eating of pigments in fungus spores
(4) production of mutations as a result of
eating the fungus
Moth wing color distribution would likely change through natural selection of favorable variations, similar to how darker peppered moths were favored during the Industrial Revolution due to better camouflage against soot-covered trees.
Explanation:The change in moth wing color distribution as a result of a fungal infection would most likely occur due to natural selection of favorable variations. Natural selection enhances the survival and reproduction of organisms with traits well-suited to their environments. In the classic example of the peppered moth during the Industrial Revolution in England, darker moths were naturally selected because they could better camouflage against the soot-covered trees, making them less visible to predators. Directional selection occurred, shifting the population's genetic variance towards the darker phenotype. Similarly, if a fungus changes the environment or the appearance of moths, natural selection would favor the moths whose coloration allows them to best avoid predation, leading to a change in color distribution in the moth population over time.
A windmill converts the mechanical energy of wind into _________ energy produced by a generator.
A) heat
B) nuclear
C) chemical
D) electrical
At the complete end of cellular respiration, how many molecules of ATP are produced
Answer:
38 ATP
Explanation:
On complete oxidation of one molecule of glucose yields 38 ATP. Break up of energy production is given below:
During glycolysis 2 ATP and 2 NADH is produced. During formation of Acetyl CoA, 2 NADH is produced. During Citric Acid Cycle, 2 ATP, 6 NADH, 2 FADH₂ are produced.Finally during Electron transport chain, reduced coenzymes NADH and FADH₂ oxidised to release ATP. Each NADH produce 3ATP and each FADH₂ produces 2 ATP. Altogether 10 NADH is produced during entire process of cellular respiration which yield 30 ATP and 2 FADH₂ yields 4 ATP. Therefore, on complete oxidation of one molecule of glucose yields 38 ATP.
The number of ATP molecules produced at the complete end of cellular respiration is 38. One glucose can produce 38 molecules of ATP after glycolysis, kreb's cycle, and oxidative phosphorylation.
The process of turning biological energy from food into the chemical molecule adenosine triphosphate (ATP) is known as cellular respiration. Cellular respiration is a set of metabolic processes that take place inside the cells. The main energy currency of the cell is ATP.
Cellular respiration involves three main stages that is glycolysis, the Krebs cycle, and oxidative phosphorylation.
Glycolysis is the conversion of the glucose into two molecule of pyruvate. In Krebs cycle, pyruvate is further broken down and NADH and FADH2 molecules are produced with release of carbon dioxide, NADH and FADH2 are used in oxidative phosphorylation to produce ATP.
One molecule of glucose release up to 38 ATP molecules in total. Of these, 34 are formed by oxidative phosphorylation, 2 are produced by the Krebs cycle, and 2 are produced during glycolysis.
Therefore, 38 ATP molecules are produced after completion of cellular respiration.
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Which area is less steep? blue area orange area
Answer: Here is the picture
Explanation: Down below
https://heard.owschools.com/media/o_esc_2016/4/graphic_topomap_alttest.gif
This is the image
which of the following is the best definition of an enzyme?
A. a molecule that carries genetic information
B. the specific molecule that binds to a catalyst
C. a long chain of amino acids
D. a protein catalyst in a living organism
D. A protein catalyst in a living organism
An enzyme is best defined as a protein catalyst in a living organism, speeding up specific biochemical reactions by lowering activation energy. They work through highly specific active sites and are essential for life's processes.
Explanation:The best definition of an enzyme is D. a protein catalyst in a living organism. An enzyme is a substance produced by a living organism which serves as a catalyst to accelerate specific biochemical reactions. These reactions are crucial for various biological processes and without enzymes, these reactions would proceed too slowly to sustain life. Enzymes work by lowering the activation energy required for a reaction to occur, thereby increasing the reaction rate. They bind to molecules called substrates, forming an enzyme-substrate complex, and facilitate the conversion of substrates into different molecules, the products of the reaction.
Enzymes are incredibly specific, meaning each type of enzyme typically catalyzes only one kind of biochemical reaction. The region where the enzyme binds to the substrate is known as the active site, and the fitness of this binding is often described by the induced fit model, suggesting that the active site adapts to snugly fit the substrate upon binding.
Which of the following is true regarding DNA structure?
A.DNA is single-stranded
B.DNA forms a double helix
C.In DNA, purines pair together and pyrimidines pair together
D.DNA is compose of amino acids
Which of the following strands is complementary to this DNA sequence? ACAGTC
A.ATCCCG
B.TGACAG
C.TGTCAG
D.GGGCCC
What is the complementary DNA strand that is created from this template during replication? Template Strand = 3' TAGGCATTGCA 5'
A.5' TAGGCATTGCA 3'
B.5' ATCCGTAACGT 3'
C.5' AUCCGUAACGU 3'
D.5' TGCAATGCCTA 3'
Which of the following is true regarding transcription and translation?
A.During transcription, an mRNA molecule is created from the DNA molecule.
B.Translation takes place in the nucleus, while transcription takes place in the cytoplasm.
C.During protein synthesis, translation occurs prior to transcription.
D.During translation, a DNA sequence is used to synthesize an amino acid sequence.
Which direction does genetic information flow during gene expression?
A.DNA > Protein > RNA
B.Protein > RNA > DNA
C.RNA > Protein > DNA
D.DNA > RNA > Protein
QUESTION 1:
DNA is a biological molecule that stores genetic information in living cells. The DNA molecule is structurally made up of nucleotide subunits, which pairs together with an hydrogen bond to form a double helical structure.QUESTION 2:
In the DNA, adenine base pairs with Thymine while Guanine pairs with Cytosine i.e. A-T, G-C. Hence, in a DNA sequence as follows: ACAGTC, the complementary strand will be TGTCAG.QUESTION 3:
As described in question 2, the complementary strand of the following DNA sequence: 3' TAGGCATTGCA 5' produced during DNA replication will be 5' ATCCGTAACGT 3'.QUESTION 4:
Transcription is the process by which a mRNA molecule is synthesized from a DNA template while translation is the process by which amino acid sequence are synthesized from mRNA transcript.QUESTION 5:
During gene expression, transcription occurs before translation. This means that the mRNA molecule is synthesized first from the DNA molecule, then the mRNA is used to synthesize proteins in the translation process. The direction in which genetic information flow during gene expression is as follows: DNA > RNA > Protein.Learn more at:
https://brainly.com/question/15159232?referrer=searchResultshttps://brainly.com/question/9339389?referrer=searchResultsThe correct answers relate to the double helix structure of DNA, the complementary pairs in DNA, the process of transcription and translation, and the flow of genetic information in central dogma.
Explanation:Regarding DNA structure, the true statement is B. DNA forms a double helix. In the DNA structure, adenine pairs with thymine, and guanine pairs with cytosine, hence it is not single-stranded, and it is not composed of amino acids.
The DNA sequence complementary to ACAGTC is TGTCAG. Always remember that A pairs with T and G pairs with C in a complementary DNA strand.
In DNA replication, the strand complementary to the template strand 3' TAGGCATTGCA 5' is 5' ATCCGTAACGT 3'. Adenine (A) in the template strand pairs with Thymine (T) in the new strand, Thymine (T) pairs with Adenine (A), Guanine (G) pairs with Cytosine (C) and Cytosine (C) pairs with Guanine (G).
Regarding transcription and translation, Statement A is true: During transcription, an mRNA molecule is created from the DNA molecule. Transcription happens inside the nucleus and translation happens in the cytoplasm, showing that the process is not as described in options B and C. Also, translation synthesizes protein sequences from mRNA, not DNA.
Lastly, the flow of genetic information during gene expression primarily occurs in this sequence: DNA > RNA > Protein. This process is also known as the central dogma of molecular biology.
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what are animals with four legs called
Answer:
Quadruped
Explanation:
Answer: Quadrupedalism or pronograde posture is a form of terrestrial locomotion in anaimsl using foud limbs or legs.
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