Answer and Explanation:
Interphase is the longest stage of the cell cycle and can be divided into 3 phases: G1 phase, S phase, G2 phase. The newly formed cell matures during the G1 phase. If the cell is going to divide, it enters the S (synthesis) phase where the DNA is replicated and the G2 phase where more growth occurs. The cells undergoing meiosis have only one interphase. After telophase I the cell enters into prophase II without having interphase II.
Which of the following is an example of an electrolytic solution? Select all that apply.
A. sea water
B. fresh water
C. carbonic acid
D. salt (NaCl)
Answer:
C carbonic acid and D salt are the example of electrolytic solution.
Explanation:
Carbonic acid is an weak electrolyte because in aqueous solution carbonic acid undergo partial hydrolysis to generate H+ and HCO3- ions.
H2CO3 ⇄ H+ + OH-
NaCl is a strong electrolyte because in aqueous solution NaCl undergo hydrolysis to generate Na+ and Cl- ions.
NaCl ⇄ Na+ and Cl-
Sea water and salt (NaCl) when dissolved in water are examples of electrolytic solutions that can conduct electricity. Fresh water typically does not conduct electricity well unless it contains dissolved minerals, and carbonic acid acts as a weak electrolyte. Substances like NaOH and Fe(NO3)3 are strong electrolytes, while CH3COCH3 and Br2 are nonelectrolytes.
Explanation:An electrolytic solution is a solution that contains ions and can conduct electricity when dissolved in water. Out of the options provided, both sea water (which contains a variety of dissolved salts) and salt (NaCl) when dissolved in water are examples of electrolytic solutions. In contrast, fresh water is typically a poor conductor of electricity since it lacks free ions unless it has dissolved minerals. Carbonic acid, formed when carbon dioxide dissolves in water, also acts as a weak electrolyte.
Given substances and their classification as electrolytes or nonelectrolytes include:
Sodium hydroxide (NaOH) and iron(III) nitrate [Fe(NO3)3] are strong electrolytes.Acetone (CH3COCH3) and elemental bromine (Br2) are considered nonelectrolytes because they do not dissociate into ions in solution.As for whether solutions of certain solutes will conduct electricity:
AgNO3 (silver nitrate) will conduct electricity as it is a strong electrolyte.CHCl3 (chloroform) will not conduct electricity because it is a nonelectrolyte.
Which beat summarises the flow of energy in a producer
Answer:
sun>Chloroplasts> mitochondria
Explanation:
Tornadoes are rotating, funnel-shaped clouds that often appear with little to no warning. Wind speeds in a tornado can reach up to 300 miles per hour, and damage paths can extend for miles. Which of the following is the cause of most of the injuries and deaths from tornadoes? A. lightning strikes B. flying debris C. poor visibility D. heavy rain
Answer:
a lightinging strikes that is because i am farting oops
Explanation:
Answer:
Flying debris.
Explanation:
You can get hit by something flying in the air
Match each organ with the correct organ system.
1 stomach
reproductive system
2. brain
nervous system
3. heart
digestive system
4. kidneys
lymph system
5. bone marrow
skeletal system
6. pituitary gland
endocrine system
7. xylem
cardiovascular system
8. bones
excretory system
9. fallopian tubes
vascular tissue system
Answer:
1 stomach- Digestive
2. brain-Nervous
3. heart-Cardiovascular
4. kidneys- excretory
5. bone marrow- lymph
6.Pituitary gland- Endocrine
7. xylem-vascular tissue
8. bones-skeletal
9. Fallopian tubes-Reproductive
Explanation:
Matching each organ with the correct organ system :
Organ organ system
1. Stomach Digestive
2. Brain Nervous
3. Heart Cardiovascular
4. kidneys Excretory
5. bone marrow Lymph
6.Pituitary gland Endocrine
7. xylem Vascular tissue
8. bones Skeletal
9. Fallopian tubes Reproductive
Function of the human systemsThe cells make up the tissues and the tissues make up the organs while the organs make up the system. There are about ten(10) different body systems in the human body which perform various functions. example :
Reprodcutive : Responsible for reproduction Cardiovascular : Responsible for blood circulationSkeletal : res;onsible fir the support and movementHence we can conclude that the oragns and their systems are as listed above.
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Which of the following is NOT a component of a nucleotide?
a. Phosphate
b. Nitrogenous base
c. Pentose sugar
d. DNA
Answer:
D
Explanation:
Which of the following is not a component of DNA's nucleotides?
a. A phosphate group
b. A base (A, C, T, or G)
c. A deoxyribose backbone
d. RNA
Final answer:
DNA is not a component of a nucleotide; instead, nucleotides form DNA. Each nucleotide consists of a nitrogenous base, a pentose sugar, and phosphate groups.
Explanation:
The component that is NOT a part of a nucleotide is option d. DNA. Nucleotides themselves are the building blocks of nucleic acids, such as DNA and RNA. Each nucleotide is composed of three main components: a nitrogenous base, a pentose sugar, and one or more phosphate groups. The pentose sugar could be either deoxyribose, in the case of DNA, or ribose for RNA. The nitrogen-containing bases are divided into purines (adenine and guanine) and pyrimidines (cytosine, thymine, and uracil). However, DNA itself is not a component of a nucleotide but rather a macromolecule that is made up of many nucleotides joined together through phosphodiester bonds.
Which of the following best characterizes natural selection?
inment in which leaves grew only at the tops of short trees, giraff
A. Faced with an environment in which leaves grew only at the to
responded by growing long necks.
onment where leaves grew only at the
B. Only giraffes with long necks moved into an environment where leaves
tops of short trees.
iraffes that did not eat leaves from the tops of short trees grew shorter
C. The necks of giraffes that did not eat leaves from the tops
lack of exercise.
D. Among a population of giraffes, those with long necks were able to survive better i
environment in which leaves grew only at the tops of short trees.
The answer is D, because natural selection is when species adapt in order to live. Giraffes with long necks were able to eat more than those with short necks. Which is why they survived better. There long necks are an adaptation created so they can survive.
Final answer:
Option D best characterizes natural selection, as it describes how giraffes with long necks had a survival advantage in accessing food, leading to greater reproductive success and an eventual increase in long-neck traits in the population.
Explanation:
The best characterization of natural selection among the given options is D: Among a population of giraffes, those with long necks were able to survive better in an environment in which leaves grew only at the tops of short trees. Natural selection is a process described by four main concepts:
Heritable variation within a population.
Overproduction of offspring leading to a struggle for existence.
Differential survival and reproduction, meaning individuals that are better adapted to their environment are more likely to survive and reproduce.
Gradual change in traits within the population over generations as advantageous genes increase in frequency.
In the case of giraffes, they once had varying neck lengths. Due to environmental changes such as drier climates and scarcer leaves, giraffes with longer necks had an advantage in reaching food sources. Consequently, these giraffes were more likely to survive and reproduce, passing down the long-neck trait to offspring. Over time, this led to a population dominated by long-necked giraffes, demonstrating evolution through natural selection.
The value of a stock increases 1423 points twice in one week. The other three days the value decreases by 10 points, 813 points, and 1223 points. By how many points did the value of the stock change that week?
Answer: By [tex]800\ points[/tex]
Explanation:
You need to analize the information provided in the exercise.
You know that:
1. The value of a stock increases 1,423 points twice in one week. This indicates that you must multiply 1,423 points by 2:
[tex](1,423\ points)(2)=2,846\ points[/tex]
2. The other three days the value decreases by 10 points, 813 points, and 1,223 points. So you need to find the sum. This is:
[tex]10\ points+813\ points+1,223\ points=2,046\ points[/tex]
Finally, you need to subtract 2,846 points and 2,046 points in order to calculate by how many points the value of the stock changed that week.
Therefore, the result is:
[tex]2,846\ points-2,046\ points=800\ points[/tex]
Answer:
Answer: By 800 points
The genetic code is a sequence of DNA nucleotides. In eukaryotic cells, the DNA is located in the nuclei of the cells. The genetic
code is nearly universal in that
Explanation:
Complete question...
a) the same codons are assigned to the same amino acids in most living things.
b) the same codons are assigned to the same DNA sequences in most living things.
c) None of these are correct.
d) the same amino acids are assigned to the same DNA sequences in most living things.
The genetic code is ubiquitous- it is found everywhere in most living organisms. Thus a) the same codons are assigned to the same amino acids in most living things.
Sequences of DNA make up genes which can have different forms called alleles. DNA is transcribed into mRNA and later translated into amino acids which are linked together by rRNA to form proteins.
Further Explanation:
The nucleic acids are comprised of smaller units called nucleotides and function as storage for the body’s genetic information. These monomers include ribonucleic acid (RNA) or deoxyribonucleic acid (DNA). They differ from other macromolecules since they don’t provide the body with energy. They exist solely to encode and protein synthesis.
Basic makeup: C, H, O, P... life on Earth is Carbon based nucleotides contain 5-carbon sugars, and nitrogen; the bases may contain single to double bond rings
All the genetic information within the eukaryotic cell is stored within the nucleus as helical DNA. This DNA is tightly wound around histones as chromosomes. Codons are three nucleotide bases, with each codon encoding an amino acid or signalling the beginning or end of protein synthesis.
RNA codons determine certain amino acids so the order in which the bases occur within in the codon sequence designates which amino acid is to be made bus with the four RNA nucleotides (Adenine, Cysteine and Uracil) Up to 64 codons (with 3 as stop codons) determine amino acid synthesis. The stop codons ( UAG UGA UAA) terminate amino acid/ protein synthesis while the start codon AUG begins protein synthesis.
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Which of the following is a natural cause of carbon increases and decreases?
Question 2 options:
clearing of land for new development
collecting and burning natural gas
plant growth related to weather
water usage related to fires
Glaciers existed in many parts of the world but have melted. Scientists can detect that an area was once covered by a glacier using the evidence of
A) V-shaped valley
B) loess deposits
C) alluvial fan
D) U-shaped valley
Would you expect a honeycreeper species that lives only on the island of Hawaii to have evolved before or after a honeycreeper species that lives on the islands of Hawaii, Maui, and Oahu? Explain your answer.
The honey-creepers of Hawaii were evolved later.
Explanation:
The Hawaiian honey-creepers were evolved after the Hawaii, Maui and Oahuian honey-creeper. The research work conducted by Michi Horfeiter of York University involved the study of finches that are the origin of honey-creepers and their evolution on the island of Hawaii.
As this island has a huge number of diversities among the honey-creeper family the researchers found their evolution occurring after the evolution of them in the Maui, Hawaii and Oahu island. This process of large bursting evolution is known as radiation. This radiation is behind their evolution.
The gradual change in species over time
Answer: Gradualism [GRAJ-oo-uh-liz-uhm] – the theory that all evolution is slow and proceeds at a steady rate over a long period of time
how do organism interactions ensure that energy flows through and ecosystem?
Answer:
Organisms can be either producers or consumers in terms of energy flow through an ecosystem. A trophic level refers to an organism's place in the food chain.
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Why is the destruction of a natural environment a risk to the survival of humans?
Answer:
Destruction of a natural environment is a big threat to the humanity. With the destruction of forests, the wild life is becoming extinct. Lesser number of trees means more harmful gases to be transferred to the ozone layer. Without the ozone layer, the survival of humans on the Earth will be impossible.
If plant or animals become extinct or endangered from a natural environment, this will mean lesser food for the humans. There will be increased competition for food and other resources.
How is an increase in carbon in the atmosphere likely to affect coastal areas
such as those in North Carolina?
O A. More flooding
JOB. Fewer storms
O C. More sunlight
O D. Less erosion
Answer:
a
Explanation:
A rise in carbon levels in the atmosphere leads to climate change, causing the Earth's temperature to rise, melting ice caps and causing sea levels to rise. This, in turn, leads to more flooding in coastal areas like North Carolina.
Explanation:An increase in atmospheric carbon, primarily due to human activities like burning fossil fuels, leads to a phenomenon known as climate change. One major byproduct of climate change is rising sea levels because higher atmospheric carbon levels cause the Earth's average temperature to rise, resulting in the melting of polar ice caps and thermal expansion of the ocean. Coastal regions, such as North Carolina, are particularly vulnerable to these rising levels, which can lead to more flooding.
To expand on the effect, as sea levels rise, even regular high tides can push seawater further inland causing flooding in low lying regions. Moreover, in the event of a storm, the potential destruction is amplified due to higher sea level providing a base for storm surge.
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Which statements correctly describe the inheritance pattern for the alleles that control blood type? Check all that apply. IA is dominant. IB is dominant. i is dominant. IA is recessive. IB is recessive. i is recessive.
Explanation:
both IA and IB are dominant- A and B groups show co-dominance
Inheritance describes the way in which certain traits are passed onto offspring of sexual reproduction. For co-dominance, both of a gene's alleles are present, and notable in the phenotype.
Blood glycoprotein alleles are crucial to blood type determination for the ABO system in humans- i does not lead to modifications, while IA leads to the modification of adding N-acetylgalactosamine to the H-antigen on red blood cells; and IB adds galactose
[tex]I_{A} I_{B}[/tex] = blood type AB while [tex]I_{A} I_{A}[/tex] = blood type A while [tex]I_{B} I_{B}[/tex] = blood type B. Since [tex]I_{A} I_{B}[/tex] are both dominant over ii, those with that allele have blood type O.
The nucleus is a large membrane-bound organelle that houses the genetic information, DNA, in the cell. Sequences of DNA make up genes which can have different forms called alleles and comprise the genotype. DNA is transcribed into mRNA and later translated into amino acids which are linked together by rRNA to form proteins. These proteins, when expressed, are referred to as an organism's phenotype.
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Answer:
a, b, and f
Explanation:
WILL GIVE BRAINLIEST *IF IT IS CORRECT*
Which list below describes the next steps of evaporated water through the water cycle?
A) Condensation, precipitation, runoff, ocean storage
B) Transpiration, condensation, precipitation, ocean storage
C) Precipitation, condensation, runoff, groundwater
It most likely is B or C idk tho
Answer:
A) Condensation, precipitation, runoff, ocean storage
Explanation:
Water cycle is a natural phenomena by which water from the surface of the earth gets evaporated by the heat of the sun , rises high condenses and precipitates in the form of rain, snowfall etc. returning the water to the earth.After evaporation from the surface of water bodies and other sources the water vapor rises high where it faces a colder temperature that results in the condensation of water vapor.This combines with dust and forms cloud.As the mass increases. the water precipitates as a result of gravity.This precipitation may be in the form of rain, snow or dew.The water that comes back to the earth's surface is store in oceans and as ground water.Thus, the next steps after evaporation is, condensation, precipitation, runoff and ocean storage.Which of the following is an example of parasitism?
O
A. Algae living on a sloth, giving it camouflage
O
B. Two fish protecting each other from predators
O
C. Tree frogs using the trees to hide from predators
O
D. Fleas living on a dog, making the dog ill
SUBM
Answer:
The correct answer is d. Parasites take what they want from the host not trying to help out the host.
Explanation:
The following example of parasitism is fleas living on a dog, making the dog ill. The correct option is D.
What is parasitism?Parasitism is a process in which the organism lives upon another organism for food and space, but it exploits the other organism and makes it ill and weak.
The fleas, that feed upon dog skin, suck the blood of the dog and infect the dog with the parasites they get.
Thus, the correct option is D. Fleas living on a dog, making the dog ill.
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The enzyme that unwinds that double stranded DNA at the beginning of DNA replication is called A. Primase. B. helicase C. topoisomerase. D. DNA polymerase
Answer:
DNA Polymerase D
Explanation:
The enzyme that unwinds that double stranded DNA at the beginning of DNA replication
Which of these activities increases the amount of carbon in the atmosphere?
A.
animals eating plants
B.
burning of fossil fuels
O
C.
fossilization
D.
photosynthesis
nado
Next
Answer:
B.
burning of fossil fuels
it increase the amount of carbon present in atmosphere.
Answer:
B.
Explanation:
as when we burn of fossel fuel causes nitrogen and carbon and other gases in air
Which is important in determining the characteristics of biomes latitude or longitude
Latitude plays a more significant role than longitude in determining the characteristics of biomes.
Explanation:The **latitude** and **longitude** are both important in determining the characteristics of biomes, but **latitude** plays a more significant role. Latitude affects the climate, temperature, and amount of sunlight that a particular area receives, which in turn determines the types of plants and animals that can survive in a biome. For example, forests are found in regions with moderate temperatures and abundant rainfall, which tend to be closer to the equator. On the other hand, deserts are typically found in areas with high temperatures and low rainfall, which are often closer to the tropics.
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Which of the following statements correctly represents the difference between acculturation and assimilation?
A. Assimilation occurs when a group is fully integrated into another culture, and acculturation occurs when
a group adopts some beliefs of another culture but remains distinct from other groups.
B. Assimilation occurs when cultures adopt the customs of other cultures for their own benefit, and
acculturation occurs when one aspect of a culture is spread from one society to another.
C. Assimilation occurs when a group adopts some beliefs of another culture but remains distinct from other
groups, and acculturation occurs when a group is fully integrated into another culture.
D. Assimilation occurs when one aspect of a culture is spread from one society to another, and
acculturation occurs when cultures adopt the customs of other cultures for their own benefit.
Explanation:
A. Assimilation occurs when a group is fully integrated into another culture, and acculturation occurs when a group adopts some beliefs of another culture but remains distinct from other groups.
Cultural exchange has been integral to human society, as cultures change over time. Migration, and commerce has frequently facilitated this process; cultural elements diffuse throughout groups, and as a result, these are adopted in different contexts When groups undergo complete integration to a separate, distinct culture, this process is called assimilation. However, different groups may exchange cultural elements, or adopt some form of another group's culture with each while remaining separate and distinct in acculturation.
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Final answer:
Acculturation involves adopting some elements of another culture while maintaining a distinct identity, whereas assimilation refers to full integration into the dominant culture, often losing the original cultural identity.
Explanation:
The difference between acculturation and assimilation primarily revolves around the depth of cultural integration and the retention of the original culture by a minority group within a dominant culture. Acculturation refers to the process where a group adopts certain elements of another culture (such as dress, language, or traditions) but still maintains its distinct cultural identity. On the other hand, assimilation occurs when a group becomes so fully integrated into the dominant culture that it loses its original cultural identity and becomes indistinguishable from the native members of the dominant group.
With these definitions in mind, the correct statement that represents the difference between acculturation and assimilation is:
A. Assimilation occurs when a group is fully integrated into another culture, and acculturation occurs when a group adopts some beliefs of another culture but remains distinct from other groups.
Which is not an input into the Calvin-Benson cycle?
Answer:
H2O is not an input into the Calvin-Benson Cycle
Bacteria and archaea function in the nitrogen cycle
Answer:Archaea are able to perform different reductive pathways of the N-cycle, including both assimilatory processes, such as nitrate assimilation and N(2) fixation, and dissimilatory reactions, such as nitrate respiration and denitrification. However, nitrogen metabolism is much less known in archaea than in bacteria.
Explanation:
Bacteria and archaea are essential to the nitrogen cycle, converting atmospheric nitrogen into forms usable by plants and animals. They engage in nitrogen fixation, nitrification, and denitrification, crucial for ecological balance and the biosphere.
Bacteria and archaea play crucial roles in the nitrogen cycle, a fundamental process that converts atmospheric nitrogen into various chemical forms usable by plants and animals. Bacteria in the genus Rhizobium, for instance, are known for their nitrogen-fixing abilities, living symbiotically within the roots of legume plants like clover and peas, converting atmospheric nitrogen into ammonia. This ammonia is essential for the plants to synthesize nucleic acids and other vital biomolecules.
Apart from nitrogen fixation, these prokaryotes are also involved in other stages of the nitrogen cycle such as nitrification, where soil and oceanic archaeal microbes, particularly those within the Crenarchaeota group, convert ammonia to nitrites. Further, nitrifying bacteria and archaea are involved in converting these nitrites to other nitrogenous compounds through processes like ammonification and denitrification. Denitrifying bacteria, for example, reduce nitrates back to atmospheric nitrogen, completing the cycle.
These microbial processes are not only essential for the survival of plants and by extension, animals, but also for maintaining the balance of nitrogen in the atmosphere, soil, and water ecosystems. The efficient conversion of nitrogen in its various forms by bacteria and archaea highlights their indispensable role in the earth's ecological and biological systems.
What makes a plant transgenic?
1. Label letters A-G in the picture of photosynthesis below.
2. What is the name of the stage of photosynthesis that occurs on the left side of the line drawn above?
3.What is the name of the stage of photosynthesis that occurs on the right side of the line drawn above.
5. In what part of the chloroplast does this stage occur?
Answer:
A:grana
B:water
C: oxygen
D: ATP
E:NADPH
F: phosphate
G: glucose
2: light stage
3:Dark stage
4:stroma(dark) and grana(light)
identify the cerebral cortex in the diagram below
The area marked by A in the figure is the cerebral cortex/cerebral mantle.
Explanation:The cerebral cortex is known as the surface of the brain. It is the outer layer of the cerebrum dividing it into two hemispheres. There a numerous peaks and grooves in this layer called as gyri and sulci.
The cerebral cortex is the largest point of neural intergration in the central nervous system. It is essential for the actions like "attention, perception, awareness, thought, memory, language, and consciousness".
Answer:
A
Explanation:
The cerebral cortex is at the top of the brain, between the frontal lobe and parietal lobe.
An estuary collects sediments from the ocean and rivers that feed into it. The sediments swirl around and then settle to form a mudflat. Eel grass is then established on the mudflat. The ecosystem changes over time and ultimately develops into a salt marsh that contains mangrove trees. Which of the following is likely NOT involved in this example of ecological succession?
Answer: The concentration of salt becomes so high that all plant life is destroyed.
Explanation:
Which conditions are common to all three of the following: genetic drift, the founder principle, and the bottleneck effect? a. in small populations when one genetic trait becomes more common in a population purely by chance b. in small populations and result in a decrease in genetic diversity and/or an increase in the occurrence of specific genetic traits c. when a small group of organisms only reproduce with each other to create a larger population of organisms d. when the majority of a population is killed off and there are only a few remaining organisms left to rebuild the population
Answer:
letter b
Explanation:
The conditions common to genetic drift, the founder principle, and the bottleneck effect are small populations, decrease in genetic diversity, and few remaining organisms to rebuild the population.
Explanation:The conditions that are common to all three genetic drift, the founder principle, and the bottleneck effect are:
In small populations, when one genetic trait becomes more common purely by chance.In small populations, resulting in a decrease in genetic diversity and/or an increase in the occurrence of specific genetic traits.When the majority of a population is killed off and there are only a few remaining organisms left to rebuild the population.These conditions lead to changes in the genetic makeup of a population. For example, genetic drift can occur when a few individuals from a larger population colonize a new area, causing a reduction in genetic diversity. The founder principle occurs when a small group of individuals establishes a new population, leading to a decrease in genetic diversity. The bottleneck effect happens when a natural disaster or human activity drastically reduces the size of a population, resulting in a loss of genetic diversity.
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Why does a continental crust rise above an oceanic crust when the two meet?
A They are of equal density but the continental crust moves faster.
B It is less dense.
C They are of equal density but the continental crust moves slower.
D It is denser.
The continental crust rises above the oceanic crust when they meet because it is less dense, allowing it to float higher on the mantle. So the correct option is B.
Explanation:When a continental crust meets an oceanic crust, the continental crust rises above the oceanic crust because it is less dense. The average composition of continental crust is granite, which has a lower density compared to the basaltic rocks that make up the oceanic crust. Due to its lower density and thicker composition, continental crust floats higher on the mantle, while the denser oceanic crust is more easily subducted beneath the continental plate at a subduction zone, leading to features like ocean trenches and volcanic activity.
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