What is a nucleotide?
Answer:
A nucleotide is a compound consisting of a nucleoside linked to a phosphate group. Nucleotides form the basic structural unit of nucleic acids such as DNA.
Explanation:
Answer:
Definition of nucleotide. : any of several compounds that consist of a ribose or deoxyribose sugar joined to a purine or pyrimidine base and to a phosphate group and that are the basic structural units of nucleic acids (such as RNA and DNA) — compare nucleoside.
Explanation:
Which of the following would cause only a chemical change with a sugar cube
Answer:
Which would cause only a chemical change in a sugar cube is heating the sugar cube with acid.
Explanation:
The complete question is:
Jolene wants to experiment with sugar cubes. Which of the following would cause only a chemical change with a sugar cube
Burning the sugar cube with a matchstick .Crushing the sugar cube and dissolving it in water .Heating the sugar cube with acid.The addition of acid to sugar (sucrose) is a known reaction that produces the chemical change of this carbohydrate into carbon, by a process of dehydration.
In the reaction of dehydration of sucrose with sulphuric acid - which is exothermic - the acid extracts water from the sugar molecule, producing gases, such as CO₂ and SO₂, which consumes the acid and converts the sucrose into carbon. The chemical reaction is:
C₁₂H₂₂O₁₁ + H₂SO₄ + 1/2 O₂ ----------→ 11C + CO₂ + 12H₂O + SO₂
Sucrose + Sulfuric Ac. + Oxygen → Carbon + Carbon dioxide + water + sulfur dioxide.
This reaction involves only a chemical change of the sucrose, when converted into carbon.
Viruses are sometimes triggered into an active state by overexposure to sun, sickness or stress
Answer:
True
Explanation:
True because bacteria multiplies in the heat more rapidly
Final answer:
Viruses can remain dormant or become activated by stress, leading to a range of diseases, including cancer. They are treated with antiviral drugs and vaccines but can sometimes resist treatment by mutating or evading the immune system.
Explanation:
Viruses are known to cause a wide range of effects in host organisms, and certain environmental factors like overexposure to sun, sickness, or stress can trigger them into an active state. This active state can lead to abnormal growth of the cell or cell death, and sometimes, viruses lay dormant for extended periods without causing noticeable symptoms. When activated, some viruses are associated with serious diseases, ranging from the common cold to more serious ailments like meningitis and cancer. In the latter, viruses such as oncoviruses contribute to cancer by inactivating tumor suppressor proteins, leading to uncontrollable cell growth. Treatment for viral diseases includes antiviral drugs and vaccines, although some viruses can evade immune responses or develop drug resistance.
Scientists have developed a variety of genetically modified (GM) crop plants. They may develop many new varieties in the future. Evidence
MOST STRONGLY supports which of these predictions about genetic technology and the world's food supply?
A
Genetic technology will have no measurable effect on the food supply
B. Genetic technology will increase the cost of many foods and harm their quality
C. Genetic technology will improve the quality of many foods, but also increase their cost.
D. Genetic technology has the potential to reduce the cost of many foods and improve their quality
Answer:
DExplanation:
1. A genetically modified (GM) or transgenic crop is a plant that has a combination of genetic material of two or more than two organisms, and it is obtained by the use of modern biotechnology.
2. Example: a genetically modified crop can contain a gene or genes of other organisms that has been artificially inserted instead of the plant acquiring it through pollination.
3. Genetic technology has the potential to reduce the cost of many foods and it can improve their quality as well as quantity.
Answer:
d
Explanation:
just hd it
The illustration above depicts different embryological stages of 4 different vertebrates. Choose all the true statements concerning embryological development of these four species.
The embryos look similar, regardless of the organism
All vertebrates evolved from the tortoise
The similarity in the embryos suggest that they share a common ancestor
Of the four organisms, the calf and the human are most closely related
Of the four organisms, the tortoise and the human are most closely related
Answer:
The correct answers are-
1. The embryos look similar, regardless of the organism
2.The similarity in the embryos suggest that they share a common ancestor
3.Of the four organisms, the calf and the human are most closely related
Explanation:
The other ones can not be correct because not all vertebrates have evolved from tortoises, there are many vertebrates that have evolved from different species or organisms. And the tortoise and human are not the most closely related because they have completely different features from each other.
The illustration above depicts different embryological stages of 4 different vertebrates all the true statements concerning embryological development of these four species are :
A) The embryos look similar, regardless of the organism
C) The similarity in the embryos suggest that they share a common ancestor
D) Of the four organisms, the calf and the human are most closely related
The illustration above depicts different embryological stages of 4 different vertebrates all the true statements concerning embryological development of these four species are the embryos look similar, regardless of the organism, the similarity in the embryos suggest that they share a common ancestor and of the four organisms, the calf and the human are most closely related.The different ones can't be accurate due to the fact now no longer all vertebrates have advanced from tortoises, there are numerous vertebrates which have advanced from extraordinary species or organisms.Thus, the correct answer is A,C and D.
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Cardiac muscle causes movement in the
A) bone
B) tendon
C) ligament
D) organ
Answer: d organ
Explanation: for shoure [not a good spell'er]
Drag each label to the correct location
Claire had a heavy breakfast early in the morning. Then she went to the gym to exercise. After the gym. Claire went to class.
While exercising the body requires a continuous supply of energy and uses up blood sugar at a faster rate. How will hormones maintain the
sugar balance in the body from breakfast until Claire has lunch?
high blood sugar
secretion of glucagon
secretion of insulin
glycogen breaks down
to glucose
after breakfast
blood sugar low
pancreas
pancreas
intake of sugar
by liver cels
The Langerhans cells in the pancreas secrete the polypeptide hormone insulin, which has a hypoglycemic impact. The function of the pancreatic hormone glucagon is to promote the conversion of glycogen to glucose.
What is an Insulin Hormone?Insulin primarily a peptide hormone that is secreted by the islets of the pancreas of Langerhans cells. It regulates carbohydrate, lipid, and protein metabolism, facilitates cellular glucose uptake, and promotes cell division and proliferation via its mitogenic effects.
Following a meal, carbohydrates decompose to produce glucose, a sugar that serves as the body's main source of energy. After then, glucose enters the bloodstream. In response, the pancreas produces insulin, allowing glucose to get into the body's cells and fuel them with energy.
Therefore, the Langerhans cells in the pancreas secrete the polypeptide hormone insulin, which has a hypoglycemic impact. The function of the pancreatic hormone glucagon is to promote the conversion of glycogen to glucose.
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How are similarities and differences in characteristics of organisms important in the application of taxonomy
Explanation:
Taxonomy is a field of plant systematics which is associated with the identification, arrangement and classification of the organism.
The classification of the organism is based on the morphological characteristics of the organism. These morphological characteristics of the organism are compared with the characteristics of the other organisms. The organism is classified based on similarities and differences.
Thus, the similarities and differences play an important role in the taxonomy.
Similarities and differences in characteristics of organisms are important in the application of taxonomy - as it helps in classifying and recognizing differences in organisms based on their taxonomic ranks.
Taxonomymoving further down the list, organisms become more closely related and similarThe order of taxonomy is (from most to least broad): Kingdom, Phylum, Class, Order, Family, Genus, Species.Many organisms can be classified under Kingdom, but only a few organisms remain as you file into a Species. this is due to becoming more inclusive and similar moving kingdom to speciesit helps in identifying and recognizing similarities and differences.Learn more:
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(1) During the Spanish-American War, U.S. soldiers were supplied with tin cans containing decayed meat. (2) Due to a lack of food safety standards, vendors in the 1800s often sold food that would not today be considered fit for people to eat. (3) Store-bought butter was often stale and mixed with gelatin, fat, and even mashed potatoes. (4) To improve the color of milk from diseased cattle, dairymen sometimes added molasses, chalk, or plaster of Paris. Which sentence is the point of the argument?
Answer:
It will be 2.
Explanation:
It is the start and introduction to the Arguement.
The point of the argument is the lack of food safety standards in the past, as highlighted by sentence (2) which directly mentions the sale of unfit food. It underscores issues from the Spanish-American War to the broader historical context of food processing.
The point of the argument in the given sentences is that food safety standards in the past were inadequate, leading to the consumption of contaminated and adulterated foods. Sentence (2) articulates this point directly by stating that vendors sold food not considered fit to eat by today's standards. Historical context shows that during times of war and industrialization, there was often a compromise on the quality of food, which was processed in unsanitary conditions or adulterated to make it seem more appealing. Troops during the Spanish-American War faced similar issues with contaminated supplies, which sometimes had dire health consequences. At the same time, the mass production of food using industrial methods and the necessities of war sometimes led to improved access to various foodstuffs, even if the quality was compromised.
Hence, the correct answer is (2) Due to a lack of food safety standards, vendors in the 1800s often sold food that would not today be considered fit for people to eat.
Which of the structures shown below is NOT homologous with the others?
Answer:
i think is c
Explanation:
it has less bones then the others
Name three ecosystem services provided by
biodiversity.
Answer:
Ecosystem services, such as Protection of water resources Soils formation and protection Nutrient storage and recycling Pollution breakdown and absorption Contribution to climate stability Maintenance of ecosystems Recovery from unpredictable events Biological resources, such as Food Medicinal resources and pharmaceutical drugs Wood products Ornamental plants Breeding stocks, population reservoirs Future resources Diversity in genes, species and ecosystems Social benefits, such as Research, education and monitoring Recreation and tourism Cultural values
Explanation:
food
medicine
wood products
ornamental plants
breeding stocks
future resources
genetic diversity
Answer:
food
medicine
wood products
ornamental plants
future resources
genetic diversity
Explanation:
any of these answers are ecosystem services provided by biodiversity.
correct on edg
What point is Huxley making about human nature and the nature of human communities?
The point that makes is that these are problems which can not be solved.
Explanation:
The point that Huxley makes about the nature of human and the nature of the communities of the human is that these are certain problems and such problems are not solvable.
Social engineers like Mustapha Mond ends up asking the questions like what is that thing which prevents the people from being happy in their lives. And after knowing that thing, there should be efforts made to remove the source of unhappiness of the people.
Please help!
Use the drop-down menus to select the correct reactant or product.
__________ enters the stomata.
__________ exits the stomata.
___________ is absorbed by the roots.
Answer:
1 Carbon dioxide (CO2) enters
2 Oxygen exits
3 water H2O is absorbed
Answer:
1. carbon dioxide
2. oxygen
3. water
CORRECT AND FIRST ANSWER GET BRAINLIEST!!!!
The diagram represents part of Mendel's pea plant experiment. He crossed white-flowered pea plants with purple-flowered pea plants. Flower color has the same type of heredity as pea color.
What was most likely the result of the experiment?
one plant with white flowers and three with purple flowers
one plant with purple flowers and three with white flowers
four plants with white flowers
four plants with purple flowers
Answer:d
Explanation:
will give brainliest
can choose more than one
Which of the following statements about genes and traits is true?
A single gene can control a single trait.
A single gene can influence multiple traits.
A single trait can be controlled by multiple genes.
A single trait can alter multiple genes.
Answer: A single gene can influence multiple traits
Explanation: One Gene Can Affect Multiple Traits. How can a mutation in one single gene cause a disease with a wide range of symptoms? This situation is referred to as pleiotropy, and it has been identified in a wide range of species, even humans. ... A pleiotropic gene is a single gene that controls more than one trait.
Which statements show the importance of clean air?
The statements that show the importance of clean air are:
Air is a natural resource.
Governments manage air pollution to provide clean air.
Ultrafine particles contribute to 17,000 deaths per year in the United States.
Particles in the air cause health problems.
These statements highlight the significance of clean air for human health, the role of governments in managing air pollution, and the detrimental effects of air pollution on both individuals and society.
Air is an essential natural resource that is composed of various gases, including oxygen, nitrogen, carbon dioxide, and trace elements. It is necessary for the survival of all living organisms, including humans, animals, and plants.
Governments manage air pollution to provide clean air: Governments around the world recognize the importance of clean air and take measures to manage and reduce air pollution. They implement regulations, policies, and standards to control emissions from industries, vehicles, and other sources, aiming to improve air quality and protect public health.
What ultimately causes organ failure?
a.Immunity Compromise
b.Coronavirus
Which chemical can be toxic to the cells if it is not removed?
O oxygen
O glucose
O water
O carbon dioxide
Answer:
Carbon Dioxide
Explanation:
Your body's organs, such as your heart and brain, need oxygen-rich blood to work well. Respiratory failure also can occur if your lungs can't properly remove carbon dioxide from your blood. Too much carbon dioxide in your blood can harm your body's organs.
what describes the similar functions of capsids and nuclear membranes
Answer:
Both protect genetic information for the structures.
Explanation:
The capsid is defined as the polyhedral structure which is made up of a different protein shell which is known as capsomers, and that helps to surround the viral genome (DNA or RNA). The important function of the capsid is, it protects the nucleic acid by the digestion of enzymes.
Every nucleus is surrounded by a nuclear membrane. The nuclear membrane also protects the genetic material (DNA) from the substances which are present in the cytoplasm of the cell and keeps DNA inside the nucleus.
Answer: C both protect genetic information for the structures.
Explanation:
So how do we get chickens with white and black spots? Shouldn’t they be only white or black?
Answer:
Codominance
Explanation:
This is an example of codominance.
Basically with this type of genetics, both alleles for that trait, in this case feather color, are dominant. This means that both will appear in the phenotype, instead of a dominant phenotype overshadowing a recessive phenotype.
Here, the two dominant alleles are the one that governs white pigment and the one that governs black pigment. Since codominance is occurring, we see a speckled chicken instead of just an entirely white one or an entirely black one.
Hope this helps!
Male-pattern baldness is a X-linked recessive trait, labelled X^{\text{b}}
b
start superscript, start text, b, end text, end superscript, with the dominant normal hair gene being X^{\text{B}}
B
start superscript, start text, B, end text, end superscript.
A father with the genotype X^{\text{B}}
B
start superscript, start text, B, end text, end superscriptY and a mother with the genotype X^{\text{b}}
b
start superscript, start text, b, end text, end superscriptX^{\text{b}}
b
start superscript, start text, b, end text, end superscript have a son.
What is the percent chance that the son will inherit male-pattern baldness?
Answer:
100%
Explanation:
Pattern baldness if X linked and recessive.
A father with [tex]X^BY[/tex] and a mother with [tex]X^bX^b[/tex] have a son.
First, let us look at the result of the cross between the two:
[tex]X^BY[/tex] x [tex]X^bX^b[/tex]
male progeny: [tex]X^bY, X^bY[/tex]
female progeny: [tex]X^BX^b, X^BX^b[/tex]
The two sons resulting from the cross inherited male pattern baldness. Hence, the percentage chance that the son will inherit male pattern baldness is 100.
During the Calvin cycle of photosynthesis, a plant cell uses carbon dioxide to synthesize large carbohydrates.
Which statement about this reaction is true?
A. energy is consumed.
B. It is a catabolic pathway of metabolism.
C. ATP is produced.
D. It is an exergonic reaction.
The true statement is that A. energy is consumed.
Where is the energy consumed?People use a whole lot of electricity in homes, in organizations, and in enterprises, and to travel and deliver goods. There are four end-use sectors that purchase or produce power for their own consumption and now not for resale: The residential zone consists of houses and apartments.
General energy intake is made of production plus imports, minus exports, minus global marine bunkers plus/minus stock modifications. It's also known as general primary energy delivery or Gross inland energy intake and represents the quantity of all strength necessary to satisfy inland intake.
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If the Earth didn't rotate, winds would travel in a straight line. But since the Earth does rotate, the
deflects these winds to the right in the Northern Hemisphere and to the left in the Southern Hemisphere.
A.law of gravity
B.Coriolis effect
C.ionosphere
D.polor air masses
[ C. Coriolis Effect ]
If the Earth didn't rotate, winds would travel north or south because of the differences in pressure and temperature. The Earth does rotate, so, the Coriolis Effect diverts the wind to the left of the Southern Hemisphere and right of the Northern Hemisphere. The Coriolis Effect is very important because it creates cyclonic weather system.s
Best of Luck!
Answer:
Coriolis effect
Explanation:
please mark brainliest <3
Please answer both questions
What is the term for the ordering of organisms into categories, such as orders or families?
Answer:
Explanation:
Classification: In biology, classification is the ordering of organisms into categories, such as orders, families, and genera, to show evolutionary relationships.
Homologous Traits: Structures that are shared by species on the basis of descent from a common ancestor.
Taxonomy is the process of ordering organisms into categories such as orders or families, based on shared characteristics. It forms a hierarchy starting from Domain and going down to Species.
Explanation:The process of ordering organisms into categories such as orders or families is referred to as Taxonomy. This system was developed by the Swedish botanist Carl Linnaeus in the 18th century. In this process, organisms are classified based on shared characteristics into a hierarchy of categories. These categories from broad to specific are: Domain, Kingdom, Phylum, Class, Order, Family, Genus, and Species - often remembered by the mnemonic 'Did King Philip Come Over For Good Soup?'. Each subsequent category is a subdivision of the one before. For example, within the 'Order' of Carnivora, we have 'Families' like Felidae (cats) and Canidae (dogs).
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How could you investigate the idea that DNA is found only in living or once-living things?
Answer:
Yes, DNA is present in all living and once living cells. Scientists can use DNA from mummies or seeds that are thousands of years old and identify the genetics of those plants and animals using their DNA.
Explanation: I don't think this is right but I have to believe in myself so this is right I know that it is right
In wich structure is all genetic information of an organisism found
Answer:
The nucleus / DNA
Explanation:
The DNA is where all genetic information is and it is stored in the nucleus of each cell.
All of the following are examples of biofuels EXCEPT
Biodiesel
Propane
Ethanol
Methanol
Answer:
propane
it's propane because biodiesel is a form of diesel fuel, ethanol is a chemical compound and methanol is the simplest alcohol.
Answer:
Propane
Explanation:
In plants, gymnosperms have cones and angiosperms have flowers. What are both of
these plant structures specialized for?
Ophotosynthesis
food production
water absorption
O sexual reproduction
Answer:
O sexual Reproduction
Explanation:
The cones and flowers of gymnosperms and angiosperms are respectively specialized structures for se*ual reproduction.
What is se*ual reproduction?Se*ual reproduction is the process whereby a new organism is created by combining the genetic material of two organisms.
Higher plants, which consists of angiosperms and gymnosperms reproduce via se*ual means.
Angiosperms also called flowering plants produce flowers while gymnosperms produce structures called cones.
These structures (cones and flowers) produced by gymnosperms and angiosperms respectively are used for se*ual reproduction.
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Which substance is comprised of more than one element?
aluminum
helium
silver
steel
Answer:
steel
Explanation:
use a periodic table
Steel. It's a metal made of mainly iron and carbon, as well as other metalloid elements.