What is the name of the sugar that is part of a DNA nucleotide?
that would be deoxyribose my pal
The sugar component of a DNA nucleotide is deoxyribose, a five-carbon sugar missing an oxygen atom at the 2' position, which distinguishes it from ribose in RNA. The structure of deoxyribose allows it to form vital links with phosphate groups and nitrogenous bases to create nucleotides, the basic units of DNA.
Explanation:The sugar that is part of a DNA nucleotide is called deoxyribose. This five-carbon sugar, deoxyribose, differs from ribose (the sugar in RNA) by the absence of an oxygen atom at the 2' position — hence the prefix deoxy- in its name. The structure of deoxyribose is crucial for the formation of DNA, as it links with a phosphate group and a nitrogenous base to form a nucleotide, the building block of DNA.
The carbon atoms in the deoxyribose sugar are numbered as 1', 2', 3', 4', and 5'. This labeling is important because it determines where the phosphate groups and the nitrogenous bases attach to the sugar, influencing the structure and function of DNA. Specifically, the phosphate group is connected to the 5' carbon of the sugar via an ester linkage, and the nitrogenous base is attached to the 1' carbon, establishing the backbone of a DNA molecule.
Where does an eagle get the energy it needs to grow and to a fly?
A. from the animal eats
B. from the trees it nests in
C. from the air it flies in
D. from the water at fishes in
How can carbon move from land to bodies of water
Carbon moves from land to bodies of water as in following steps.
Carbon in the land is present in form of fossil fuels and plants and animals.
It converts into CO2 gas form by the burning of fossils and respiration of plants and animals.
This atmospheric CO2 is used by plants in water for photosynthesis.
Water bodies eat these plants for their nutrition. And use that carbon for making there carbohydrates, lipids and proteins.
Hence making land carbon their body part.
5. Trapping has severely reduced the population of rabbits in an ecosystem, as shown in the bar graph below. What is the most likely effect this will have on other organisms?
A. The snake population will decrease rapidly and the grass population will increase rapidly.
B. The hawk population will increase rapidly and the rabbit population will decrease rapidly.
C. The grass population will decrease rapidly and the snake population will increase rapidly.
D. The grass, rabbit, snake, and hawk populations will all decrease rapidly.
The correct answer is A. The snake population will decrease rapidly and the grass population will increase rapidly.
Explanation:
In an ecosystem, different organisms depend on each other for food and nutrients, in the case presented it is expected the rabbits rely on the grass to feed, the snakes hunt the rabbits and finally, the hawks hunt the snakes creating a food chain. This also implies if the population of one organism is affected all the other organisms will also be affected.
According to this, in the case of the population of rabbits decreasing it is expected the grass population increases because there are not enough rabbits to feed on grass and in the same way as there are not enough rabbits for snakes to feed which will decrease the snake population. Thus, the effect, in this case, is a decrease in the snake population and an increase in grass population (Option A).
need help im on an assingment and im confused also please dont lie about the answer
An organism which produces its food by photosynthesis:
must be placed in the Plantae Kingdom
may be placed in the Plantae Kingdom
must be placed in the Animalia Kingdom
may be placed the in the Animalia Kingdom
Answer:
may be placed in the plantae kingdom
Explanation:
it's not C or D because animals don'r produce photosynthesis. And some plants don't. So it has to be B.
what controls when and how fast cells grow and divide?
A. amino acids
B. nucleotides
C. hemoglobin
D. growth factors
gradpoint, Growth Factors.
The factors that control the way of cell growth and division is referred to as growth factors. The correct option is D.
What are growth factors?A growth factor is a protein that stimulates the growth of specific tissues.
Growth factors are found in a variety of organisms, including insects, amphibians, humans, and plants.
These also play an important role in promoting cellular differentiation and cell division.
Thus, the correct option is D.
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According to United Nations predictions, what will be the total population of the world by 2100?
According to United nations predictions the total population of the world would be "11.2 billion" by 2100.
Explanation:The expected population of the current world is estimated as 7.6 billion and it is expected to reach 8.6 billion by 2030 and 9.8 billion by 2050. And it is expected to exceed up to 11.2 billion by 2100.
Answer:
11.2 Billion
Explanation:
The current population of the world is 7.6 billion and it is expected to increase by 47.4 % in 2100 to reach up to the mark of 11.2 billion . Out of 7.6 billion people, nearly 37% of the people resides in two countries i.e China and India. However, the major growth of population in 2100 is majorly expected in 47 least developed countries along with other African countries.
The mountains found on the northern side of the Colorado Desert are named?
The mountains found on the northern side of the Colorado Desert are the San Bernardino and San Jacinto ranges, which are part of the larger Basin and Range Province.
Explanation:The mountains found on the northern side of the Colorado Desert are principally part of the San Bernardino and San Jacinto ranges. These mountain ranges are significant geographical features that define the region's topography. The San Bernardino Mountains lie to the north of the Colorado Desert and extend to more than 10,000 feet in elevation. Similarly, the San Jacinto Mountains, which are nearby, also rise sharply from the desert floor and are known for their stunning views and ecological diversity.
These ranges are part of the larger geologic province known as the Basin and Range Province, characterized by a series of elevated plateaus and low basins produced from extensional deformation and normal faults. The mountains are not only prominent in physical geography but also in cultural representations of the landscape, as seen in various artworks and historical accounts of the Wild West.
For example, the San Jacinto Mountains can relate to the description of the 'incredible mountains rising from the desert floor' with their striking presence and ecological significance, mentioned in the reference materials.
A man is on trial for the murder of his wife. The prosecution on this case would like to bring forward an expert in the field of ballistics to prove the bullet found at the crime scene was that of the defendant. This ballistics expert has a PhD in forensic science and has worked at the Ballistics Dept. at the Forensic Center in Houston, TX for 25 years. His methods are widely accepted in the scientific community. The judge finds his testimony to be relevant and allows his testimony to be heard. Which correctly describes the admissibility of this expert's testimony?
A) Frye standard
B) Daubert ruling
C) Miranda rights
D) Ballistics rule
PLEASE HELP I WILL GIVE 25 POINTS
Problems in using common names to universally identify living things include:
Names mean different things to different people.
Foreign names may not be understood.
Many names may exist for the same organism.
There may be no common name for an organism.
Common names lack sufficient precision.
Enough common names are not available to name every living thing
What is being asked? It is understood by what is given that there is a scientific name and an English name for an organism, but there are other various names to call each organism. A different name of a different organism can mean something different depending on the person. Sometimes organisms don't have an English name. A name to me is a title or an identification to someone or something. Foreign names cannot be understood, because different people speak different languages, thus many names can exist for may different organisms. Of course, not all common names are perfect though.
Jordan is doing a science fair project on the effects of music on the growth of tomatoes. He has two tomato plants, Plant A and Plant B, that he grows in a window and gives the same amount of water. Plant A is exposed to classical music using headphones attached to the soil. Throughout the growth period, Jordan counts the number of tomatoes produced by each plant.
List one of the experimental constants in this experiment.
Answer:
Water and sunlight are the experimental constants.
Explanation:
As we know, scientific experiments are composed of variables (dependent and independent) that are factors that researchers can manipulate to provoke a reaction that allows them to observe results. What few know is that in addition to variables, experiments are composed of factors called "constants". Experimental constants are factors that are maintained in the same way throughout the experiment without being manipulated. An example of this can be seen in the question above, where the researcher used as constant the amount of water supplied to plants and the amount of sunlight.
So cars are 100 percent efficient at converting energy from gasoline to energy of motion
True
False
The cells that make up plant leaves are specialized in structure and function to allow them to produce food from sunlight in the process known as photosynthesis. Which statement below BEST summarizes why plant leaves are specialized structures that are generally flat and thin? A) to allow the transportation of nutrient materials into the roots B) to create the large surface area needed to dissipate heat energy C) to maximize the amount of light transmission through the cell layers D) to maximize the ability of the leaf to conserve water needed for photosynthesis
Answer:
The correct answer would be option C.
The structure of the leaf is a result of different adaptations that help in increasing the efficiency of its function, that is, photosynthesis.
Different adaptations include flat and thin structure, presence of stomata, and waxy layer or cuticle.
Flat and thin structure helps in increasing the surface area of a leaf.
Large surface area ensures that maximum sunlight can fall on the leaf.
Increased sunlight increases the rate of photosynthesis.
Similarly, thin structure help in the easy transmission of sunlight from the surface to inside cells.
The inner layers of cells contain chloroplasts which convert solar energy into chemical energy.
Which of the following is not true of exothermic reactions?
A. The products of an exothermic reaction have a lower bond energy than the reactants.
B. In an exothermic reaction, excess energy is released as heat.
C. There is more energy in the bonds of the products than in the bonds of the reactants.
D. Condensation and combustion are examples of exothermic reactions.
Option B is correct.
B. In an exothermic reaction, excess energy is released as heat.
Explanation:An exothermic reaction is a chemical reaction that releases energy by light or heat. It is the opposite of an endothermic reaction. Expressed in a chemical equation: reactants → products + energy. Exothermic Reaction means "exo" meaning releases and "thermic" means heat.
Option C is not true for exothermic reactions as they actually involve products with lower bond energy compared to the reactants, due to the release of energy during the reaction.
The statement that is not true of exothermic reactions is: C. There is more energy in the bonds of the products than in the bonds of the reactants. This statement is incorrect because in an exothermic reaction, the bond energy of the products is lower than that of the reactants since energy has been released to the surroundings, typically in the form of heat, as the reaction progresses. The correct statements are that the products have a lower bond energy (A), excess energy is released as heat (B), and examples include condensation and combustion (D).
This embryo began as a fertilized egg; two individual gametes joined to produce one diploid cell. What processes have been responsible for the development seen here, once the egg is fertilized? A) meiosis - cleavage - cell differentiation B) mitosis - cytokinesis- cell differentiation C) mitosis - implantation - cytokinesis - organ formation D) meiosis - mitosis - cytokinesis - cell differentiation
Answer:
mitosis - cytokinesis- cell differentiation
Explanation:
The processes responsible for the development of this embryo, with the development of distinct organs and organ systems is mitosis - cytokinesis - cell differentiation. Cells continue to divide, but after several days, the cells begin to differentiate and activate specific proteins that enable cells to fulfill specific functions. Cell differentiation must take place before organ formation.
MY answer is correct, because I just took this test! Your welcome
Answer:
B) mitosis - cytokinesis- cell differentiation
Explanation:
HELP ASAP PLEASE!!! WILL MARK BRAINLIEST
All of the statements below describe how reproductive isolation drives speciation except .
1.
Behavior- two similar species may have different courtship or mating behaviors.
2.
A reproductive barrier keeps similar species from interbreeding.
3.
If the environment changes suddenly, evolution will be faster.
4.
Timing-two similar species may have different breeding seasons.
A reproductive barrier keeps similar species from interbreeding.
What structure is found mainly in green plants and bacteria
The structure that is present in both plant and bacteria is the Cell Wall
ExplanationCell wall presents outside the plasma membranes to protect the cells. It is only present in plants bacteria. It is The cell wall is As made up of cellulose, it gives support and flexibility to cells. In bacteria, it plays an important role to protect it from the external stress and gives specific shape. In both organisms, The cell wall also contains pores to enable the movement of food particles in or out of the cells. If it is not present in their outer surfaces, the much entrance of particles or other related compounds may lead to cell brust.
Select the animal characteristics.
segmented or nonsegmented
presence or absence of connective tissue
green or nongreen
parallel veins or netted veins
teeth patterns
exo- or endo-skeleton
digestive system
locomotion
non segmented prescence non green endo digestive
__________ is a type of cell division used in asexual reproduction.
Mitosis
Meiosis
WILL MARK BRAINLIEST! 12 POINTS!
Meiosis is the right one
Many farmers now grow insect-resistant varieties of cotton. The gene for the favorable trait, in this case, insect resistance, is transferred to the cotton's DNA using A) DNA fingerprinting. B) tissue culture. C) bacterial plasmids. D) in vitro fertilization.
Answer: C bacterial plasmid
A plasmid is a small, circular, double-stranded DNA molecule that is distinct from a cell's chromosomal DNA. Plasmids naturally exist in bacterial cells, and they also occur in some eukaryotes.
It can replicate in the cell separately . The desired gene(which codes for the desired trait) is inserted with this DNA molecule(plasmid) and tranfers to the host, where it gets replicate and helps in spreading the trait.
The insect resistent is caused in cotton in the same way. The gene for the resistant for insects is introduced into the bacterial plasmid which then transfers to the cotton. where it gets replicated and spread the resistance for insects.
A researcher investigates a blood disease carried by birds. She isolates an organism from the blood of an infected bird. She finds that the organism is unicellular and has a nucleus, a cell wall, and the ability to produce spores. What kingdom does the organism belong to? A. archaea B. bacteria C. sarcodina D. protista
Note each of them:
Archaea is a single-celled microorganism with no nucleus
Bacteria is a unicellular microorganism with cell walls but lack organelles
Sarcodina is a phylum with temporary extensions of the cell. They can be parasitic.
Protista is an eukaryotic organisms that is not an animal, plant, or fungus.
The organism found is unicellular (rules out Archaea), with cell walls (characteristics of bacteria), and the ability to produce spores.
I believe that Bacteria (B) is your best answer
hope this helps
Answer:
D. protista
Explanation:
I got it right on the test.
Scientists are concerned about the invasion of pythons in the Florida Everglades. Pythons are from Asia and are not native to the Everglades. They eat eggs and birds, many of which are endangered. The snakes were introduced to the Everglades when people released into the wild pet snakes that had grown too large. Very few animals in the Everglades prey on the snakes.
How will scientists be most effective at controlling this invasive species?
By collecting and removing the snakes from the Everglades
Answer: By collecting and removing the snakes from the Everglades.
Explanation:
An invasive species is the species which is introduced to a new region either intentionally by humans or by accidentally. These species compete with the native species for resources and may result in the extinction of the native species.
According to the given case, the Pythons are the example of invasive species as they are non-native to Everglades are they are eating eggs, birds which are endangered. The population of such snakes can be controlled by collecting and removing them from Everglades.
what blood vessels contain valves?
veins and capilliaries contain valves.
Valves are found in veins, which are blood vessels in the circulatory system. They function to prevent backflow and support the upwards movement of blood towards the heart.
Explanation:
In the circulatory system, veins are the type of blood vessels that contains valves. These valves in veins prevent the backflow of blood, aiding its return to the heart. For example, the veins in our legs have to move blood upwards against the force of gravity towards the heart, and it's the individual valve's opening and closing that allow for this one-way blood flow.
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What force do scientists think was responsible for clumping matter together to form the first stars after the big bang
Final answer:
Gravitational forces clumped matter together to form stars after the Big Bang, with dark matter playing a crucial role in the structure formation. High-density regions catalyzed by initial vibrations and cooling became the seeds for galaxies. The pull of gravity on baryonic matter within dark matter halos leads to the formation of stars and galaxy structures.
Explanation:
Scientists believe that gravitational forces were responsible for clumping matter together to form the first stars after the Big Bang. This process involved the gas in the universe gathering into clouds or clumps under the influence of gravity, which then collapsed further to form stars. These clumps were associated with both dark and baryonic matter, with dark matter playing a significant role in the gravitational clumping and merger of structures, providing the 'skeleton' for the formation of galaxies. As the hot, primordial universe expanded and cooled, regions of higher density formed the first stars and galaxies. The structures that we see today, from solar systems to galaxy clusters, condensed from these initial clumps due to gravitational attraction, enhanced by small, initial density variations in the early universe.
Moreover, during the phase when the universe was only a few hundred thousand years old and quite hot, all the gas was vibrating strongly - similar to how sound waves travel in the air. These vibrations might have led to the concentration of matter into regions of different densities, leading to high-density peaks amidst lower-density spaces. When the universe continued to cool down, these concentrations of matter became the sites where galaxies eventually formed. Thus, the early vibrations of the universe, combined with its cooling and the influence of gravity, resulted in the accumulation of matter and the creation of stars within dark matter halos.
these are an important source of best short term energy
the correct answer is carbohydrates because this fat can produce both short and fast energy.
Logistic growth curves are density-dependent.
Answer:
true
Explanation:
edge 2020
A man is on trial for the murder of his wife. The prosecution on this case would like to bring forward an expert in the field of ballistics to prove the bullet found at the crime scene was that of the defendant. This ballistics expert has a PhD in forensic science and has worked at the Ballistics Dept. at the Forensic Center in Houston, TX for 25 years. His methods are widely accepted in the scientific community. The judge finds his testimony to be relevant and allows his testimony to be heard. Which correctly describes the admissibility of this expert's testimony?
A) Frye standard
B) Daubert ruling
C) Miranda rights
D) Ballistics rule
What is the correct order for processing a crime scene?
A) first officer reports to scene, securing the crime scene, crime scene survey, collection of physical evidence
B) crime scene survey, first officer reports to scene, securing the crime scene, collection of physical evidence
C) first officer reports to scene, collection of physical evidence, securing the crime scene, crime scene survey
D) first officer reports to scene, crime scene survey, securing the crime scene, collection of physical evidence,
1. B) Daubert ruling
Daubert standard or Daubert ruling is used in the court to determine whether a scientist testimony could be admissible. The judge will be the gatekeeper and has to determine the admissibility of the testimony based on several checklist. It might sound similar to Frye standard which only testing the general acceptability of the testimony of the scientist in the particular field.
2. A) first officer reports to scene, securing the crime scene, crime scene survey, collection of physical evidence
Processing crime scene should be done in an orderly fashion to make the evidence collected reliable. Securing crime scene is important to make sure there no one change or destroy the evidence there. After that, doing a survey so you could do your work more efficient and doing less damage to the scene. Collecting the evidence would be done last.
Every year, a new influenza vaccine is developed. What is the most likely reason that doctors do not use the same vaccine each year? a. the vaccine turns into a new virus that causes a recurrence of the same influenza each year. b. the virus which causes influenza adapts each year to the last vaccine in order to survive and reproduce. c. any vaccine can only last for a year before it dies. d. a new, different virus that causes influenza enters the food chain through plants about once every year, infecting humans.
The virus which causes influenza adapts each year to the last vaccine in order to survive and reproduce.
Doctors need to develop a new influenza vaccine each year because the virus constantly changes its surface proteins, evading the previous year's vaccine. The new vaccine is designed to target the strains predicted to be most common in the upcoming season.
Explanation:The primary reason doctors do not use the same influenza vaccine each year has to do with the nature of the influenza virus itself. The virus that causes influenza undergoes constant changes, specifically in its surface proteins, a phenomenon known as antigenic drift. This allows the virus to evade the immune system, as the antibodies developed from the previous vaccine might not recognize the new variant of the virus.
A new influenza vaccine is, therefore, developed each year to target the specific strains of the virus that scientists predict will be the most common during the upcoming flu season. Hence, option b is the most accurate: 'the virus which causes influenza adapts each year to the last vaccine in order to survive and reproduce.'
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After the process of _______ occurs, each daughter cell receives an exact copy of the parent cell's dna. A. Dna translation b. Dna replication c. Dna transcription d. Dna elongation
B. DNA replication. She gets an EXACT COPY of the parent cell’s dna.
Answer: DNA replication
Explanation:
DNA replication can be defined as a biological process by which two replica of single DNA is produced from one original DNA molecule.
DNA replication takes place in all the living organisms as it carries the characters from one generation to another generation and so on.
It is double helical structure found in every cell of the body that takes part in the process of DNA replication.
Which oraganisms are the most diverse forms of life a. Protist b. Fungi c. Animals d. Bacteria and archaea d. Plants
i think the answer is b.
Animals and protists are the most diverse forms of life. Animals exhibit a wide range of characteristics and behaviors, while protists represent a diverse group of eukaryotic microorganisms. Option A and C is the correct answer.
Animals exhibit a wide range of diversity in terms of their size, shape, behavior, habitat, and adaptations. From microscopic organisms like single-celled protozoa to complex multicellular organisms like insects, birds, mammals, and reptiles, animals come in various forms. They occupy diverse environments such as oceans, forests, deserts, and grasslands. Animals also display a wide variety of feeding strategies, reproduction methods, and locomotion. The number of identified animal species is estimated to be in the millions, highlighting their immense diversity. Option A and C is the correct answer.
Protists are a diverse group of eukaryotic microorganisms that don't fit into other kingdoms like plants, animals, or fungi. They include single-celled organisms like amoebas, ciliates, flagellates, and diatoms, as well as some multicellular forms like seaweeds. Protists inhabit a wide range of environments, including freshwater, marine environments, and soil. They exhibit diverse structures, behaviors, and nutritional modes, making them highly diverse.
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