What is nucleotides macromolecule
Answers
Answer:Organic molecules ,Nucleic acids
Explanation:
Related Questions
Sheila weighs 60 kg and is riding a bike. Her momentum on the bike is 340 kg • m/s. The bike hits a rock, which stops it completely and throws Sheila forward onto the pavement. If there is no net force on the system, what is Sheila’s velocity immediately after she is thrown from the bike?
Answers
Answer:
5.7 m/s
Explanation:
The computation of Sheila 's velocity right after she gets thrown out of the bike is shown below:
1) The Physical principle: conservation of momentum.
If there is no net external force operating on a system, so the system's total momentum is conserved
The momentum, p, is a vector magnitude that is determined as the product of the mass by the velocity:
P = mv.
2) Taking into account therefore that there is no net force on the device, Sheila and the momentum of the bike are the identical pre and post collision.
Based on this, the calculation is as follows
Momentum before the collision:
\(P_1 = (mass\ of\ Sheila + mass\ of\ the\ bike) \times velocity\)
\(P_1 = (60kg + m) \times v_1\)
= 340 kg m/s
Now Momentum after the collision:
\(P_2 = mass\ of\ sheila \times velocity\ of\ Sheila + mass\ of\ the\ bike \times velocity\ of\ the\ bike\)
\(P_2 = 60kg \times v_2 + m \times 0 = 60kg \times v_2\)
\(P_1 = P_2\)
\(= (60kg + m) \times v_1\)
\(= 60kg \times v_2\)
\(= 340 kg .\ m/s\)
\(= 60kg \times v_2\)
\(v_2 = \frac{340\ kg .\ m/s }{60\ kg}\)
= 5.7 m/s
The velocity of Sheila immediately after she is thrown from the bike is 5.67 m/s.
The given parameters;
mass of Sheila, m = 60 kgmomentum of Sheila, P = 340 kg.m/sThe velocity of Sheila immediately after she is thrown from the bike is calculated as follows;
P = mv
where;
v is the velocity Sheila
\(v = \frac{P}{m} \\\\v = \frac{340}{60} \\\\v = 5.67 \ m/s\)
Thus, the velocity of Sheila immediately after she is thrown from the bike is 5.67 m/s.
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What is a hydrocarbon bond?
Answers
A hydrocarbon bond is a chemical bond that forms between hydrogen and carbon in several chemical products.
What is a hydrocarbon bond?In chemistry, a bond is formed when two elements combine with each other. In other words, a bond is formed between two elements that could be similar or different.
A hydrocarbon bond, therefore, is a chemical bond that forms between carbon and hydrogen atoms. This bond characterizes the majority of bonds in several organic molecules and is the only bond found in hydrocarbon compounds.
Hydrocarbon bonds could be single bonds, double bonds, or even triple bonds. The bonds are formed from the valence electrons of carbon and the valence electrons of hydrogen.
All hydrocarbon bonds except single bonds are said to be unsaturated. Examples are found in alkenes and alkynes. Saturated hydrocarbon bonds are found in alkanes.
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When water TRANSPIRES from the stoma into the atmosphere, what phase is it in?
Answers
Answer:
transpiration
Explanation:
the process is called transpiration
Which is an involuntary action controlled
by the autonomic nervous system?
A food Cigestion in the intestines
B. cutting fruit with a knife
C. Picking apples
D.running
Answers
Answer:
could be A, I might be wrong
Explanation:
the other involuntary actions doesn't sound automatic
explanation
Which statement best describes natural selection?
A. Random assortment of genes results in better characteristics in the following generations
B. Some live and some die in each generation Only the largest and strongest survive
C. The most intelligent organisms in a population will evolve and form new characteristics
D. The best adapted individuals survive and reproduce, which passes their genes onto the next
generation
Answers
Answer:
d
Explanation:
trust me
Answer:
c
Explanation:
Natural selection is the process through which populations of living organisms adapt and change
In a bacterium that possesses antibiotic resistance and the potential to persist through very adverse conditions, such as freezing, drying, or high temperatures, dna should be located within, or be part of, which structures?.
Answers
In a bacteria that possesses antibiotic resistance and the potential to persist through very adverse conditions, the DNA should be located in the plasmid.
What is a plasmid?Plasmid is a small, extrachromosomal DNA molecule within a cell that is independent of the chromosomal DNA and can replicate on its own.
The plasmid usually contains extra genes that codes for resistance and other specific traits.
Therefore, it can be said that in a bacteria that possesses antibiotic resistance and the potential to persist through very adverse conditions, the DNA should be located in the plasmid.
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a "thallium - hot spot test" is used to detect _____ damage:
Answers
To find heart injury, a "thallium - hot spot test" is performed. The amount of blood pumped out of your ventricles is measured by the MUGA scan. Hence (a) is the correct option.
It uses radiofrequency radiation to create images of the body in any plane while carefully managed magnetic fields are present. The link between the brain's metabolic activity and mental functions can be investigated using PET scans. A tiny amount of a radioactive tracer is injected during a PET scan, and the tracer bonds with the chemical glucose. Any cardiac muscle damage can be quickly and precisely measured using the troponin level. It is employed to support assessment after suspected heart attack.
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A "thallium - hot spot test" is used to detect _____ damage:
a. heart
b. nerve
c. bone
d. cartilage.
what ploidy level are sperm cells in the fern lifecycle, and in which structure are they formed?
Answers
As per the effects of mitosis, the fern sperm cells are in the 1n ploidy level.
The ploidy level of a cell makes reference to the number of chromosomes present in a cell during and after cellular division. When a cell has pairs of chromosomes it is considered to be diploid and is represented by the level of 2n. When, like in this case, the chromosomes are singular, it is haploid (1n).
Sperm is produced inside of the gametophyte of the fern. Specifically within a structure known as the antheridium. On the other hand, the egg production takes place within the archegonium.
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Identify and explain at least five ways you can apply the concept of
the cell cycle in your own life.
Answers
Answer:
Growth of existing cells in G1
Creating replacement cell for expired cells (apoptosis)
Repair of damaged tissues
Regulates body cells to maturation
Prevents out of control cell cycle leads to cancer
Slowing the reproduction of some cells such as neurons G0
Producing identical cells to the one that already exist to maintain shape, structure and functions of cells in the human body
Explanation:
The concept presented to explain the origin of eukaryotic cells, namely that a bacterial cell parasitized another descendant cell of the last common ancestor and eventually became a permanent part of that cell as its mitochodrion or chloroplast, is called
Answers
The concept presented to explain the origin of eukaryotic cells form a bacterial cell parasitized by another descendant cell is called endosymbiosis.
What is the endosymbiotic theory?The endosymbiotic theory is a well-sustained theory in biology about the origin of eukaryotic cells.
According to this theory, eukaryotic cells emerged by endosymbiosis between primitive eukaryotic cells and bacteria that converted into mitochondria and chloroplast organelles.
The endosymbiotic theory is well sustained in several scientific observations such as the existence of DNA in mitochondria and chloroplasts that is independent of nuclear DNA, the size of ribosomal units, etc.
In conclusion, the concept presented to explain the origin of eukaryotic cells form a bacterial cell parasitized by another descendant cell is called endosymbiosis.
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Use the diagrams below to determine the volume of the irregular solid.
Answers
Answer:
BEGINNING VOLUME-10ML
FINAL VOLUME =20ML
THEREFORE,VOLUME OF SOLID=20-10 ML
=10 ML
Mark places some cells from an onion skin on a microscope slide. He uses a freshwater solution to make the wet-mount slide. When he observes the cells under the microscope for an extended period of
time, what is he most likely to see?
A) The cells have dissolved, destroying the cell walls
B) The cells have shrunk within the cell walls
C) The cells have not been affected by the solution
D)The cells have swollen, expanding the cell walls
Answers
Answer:
D
Explanation:
Answer:
D
Explanation: All the way
Both the volume and the surface area for three different cells were measured. These values are listed in the following table. Using data from the table above, select the best explanation for why that cell will be able to eliminate waste most efficiently? Cell 2, since it has the highest ratio of surface area to volume, which facilitates the exchange of materials between a cell and its environment Cell 1, since it has the smallest volume and wilt not produce as much waste as the other cells. Cell 3, since it has the largest surface area, which will enable it to eliminate all of its wastes efficiently. Cell 3, because it is big enough to allow wastes to easily diffuse through the plasma membrane.
Answers
The cell 3 will have the ability to remove the waste highly efficiently and easily.
The best explanation for why a cell will be able to eliminate waste most efficiently is Cell 3, as it has the largest surface area, which will enable it to eliminate all of its wastes efficiently. Larger cells have a smaller surface-area-to-volume ratio than smaller cells, meaning that they have to rely on their larger surface area to facilitate the exchange of materials between a cell and its environment. As such, having a larger surface area will enable a cell to eliminate all of its wastes efficiently.
Cell 1 and cell 2 owing to there small surface area will not be that efficient at removing waste. So, for exchange of waste more surface is required in addition to having a good concentration difference between inside and outside of the cell.
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Which would cause the body to release more water through the excretory
system?
A. Losing salt through the skin
B. Eating salty foods
C. Jogging in a gym
D. Sweating on a hot day
Answers
Answer:
B
Explanation: Hormone control of water and salt
Rehabilitation of water is regulated by the antidiervative hormone (ADH) in negative feedback. ADH comes out from the pituitary gland in the brain. Except for fluid levels in the blood, the hypothalamus causes pituitary to release ADH in the blood. ADH works to increase the absorption of water in the kidney. It puts more water back in the blood, increases the concentration of urine. When there is too much fluid in the blood, sensor in the heart indicates the hypothalamus due to a decrease in the amount of ADH in the blood. It increases the amount of water absorbed by the kidney, resulting in a large amount of diluted urine.
Aldosterone, a hormone that passes through the kidney, controls the transfer of sodium in the blood from nephron. When sodium level falls in the blood, aldosterone is released in the blood, which leads to sodium from nephron to blood. This induces water to flow into the blood via osmosis. Renin has been left in the blood to control aldosterone.
I think this is correct, I hope I help u. :)
Sweating on a hot day would cause the body to release more water through the excretory system.
What is excretory system?Excretory system refers to system of the body that consist of excrete organs like large intestine, skin which help to excrete or passed out waste product out of the body which can be toxic to the body.
Therefore, Sweating on a hot day would cause the body to release more water through the excretory system.
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You have carried out a genetic screen and isolated two pure-breeding lines of zebrafish with abnormal tail fin shapes. Both of the abnormal phenotypes are inherited in a recessive fashion. What is the easiest way to tell whether these two lines have mutations in the same gene or in two different genes?.
Answers
A complementation test is the simplest approach to determine if the mutation that causes aberrant phenotypes and is inherited recessively is in the same gene or in two distinct genes.
A mutation is a change in the regular sequence of genes. It could take the shape of deletion, addition, duplication, reversion, and so on. In general, mutations have negative consequences, although certain mutations have no effect at all. Silent mutations are such mutations.
The complementation test is performed to evaluate if the mutations are caused by the same version of a gene or by two separate genes. In this experiment, two mutants are crossed and their F1 progeny are observed. If the wild type attribute arises, the mutation could occur in two separate genes.
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freckles are caused by a dominant allele. a man has freckles but one of his parents does not have freckles. what is his genotype?
Answers
If freckles are caused by a dominant allele and a man has freckles but one of his parents does not have freckles, then his genotype is heterozygous for the trait.
What is a heterozygous individual in complete dominance?A heterozygous individual in complete dominance refers to an organism that has two different alleles for a given genetic locus but one allele called dominant masks the expression of the recessive allele.
Therefore, with this data, we can see that heterozygous individuals in complete dominance contain two different alleles for the same locus but only one is expressed.
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the reduce swollen eyes question 46 options: a) add humectant to the arterial fluid b) inject with massage cream c) apply heat from the electric spatula d) inject with tissue builder
Answers
The correct option is (C) Apply heat from an electric spatula to reduce puffy eyes.
For many ailments, warm compresses have been a common at-home treatment. They can unclog swollen eyelids, reduce inflammation, and boost circulation in the eye. It's best to put a piece of cloth between the object and your skin when using either technique. Warm water is used in moist heat. Typically, to do this, soak a washcloth or towel in warm water, squeeze out the excess water, and then place the cloth over or close to your eyes to reduce inflammation.
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Who discovered the nucleus and in which year it was discovered?
Answers
Answer:
Rutherford - May, 1911
Explanation:
Answer: "May, 1911: Rutherford and the Discovery of the Atomic Nucleus. In 1909, Ernest Rutherford's student reported some unexpected results from an experiment Rutherford had assigned him. Rutherford called this news the most incredible event of his life."
The best indicator of the blood's osmolality is the concentration of
A. calcium ion.
B. bicarbonate ion.
C. sodium ion.
D. potassium ion.
Answers
The best indicator of the blood's osmolality is the concentration of sodium ion (C). The concentration of sodium ion is the best indicator of blood osmolality due to its close association with fluid balance and its role in regulating the body's water content.
Osmolality refers to the concentration of solutes in the blood, and sodium is the primary extracellular cation. Changes in the concentration of sodium ions can cause shifts in fluid balance, affecting the blood volume, blood pressure, and ultimately the osmolality of the blood. Other ions such as calcium, bicarbonate, and potassium also play important roles in the body, but they are not as closely related to blood osmolality as sodium. Blood osmolarity is a measure of the concentration of all solutes in the blood, including ions, glucose, and other molecules. Maintaining the proper blood osmolarity is crucial for the body's normal functioning, and it is regulated by several mechanisms, including the thirst response, the secretion of antidiuretic hormone, and the kidneys' ability to excrete excess water. In summary, the concentration of sodium ion is the best indicator of blood osmolality due to its close association with fluid balance and its role in regulating the body's water content.
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Which is an example of evidence that changes in the biosphere affect other Earth systems? (1 point)
O Increasing carbon dioxide concentration increases global warming.
O Coral reef destruction reduces the protection of the shoreline.
O Increased UV protection increases animal evolution.
O Increasing ozone increases weathering.
Answers
The example of evidence that changes in the biosphere affect other Earth systems is as follows: Increasing carbon dioxide concentration increases global warming (option A).
What is the biosphere?The biosphere is one of the four spheres of life which is a part of the Earth and its atmosphere capable of supporting life.
It is the totality of living organisms and their environment. The activities of living organisms in the biosphere can also affect the other three spheres; atmosphere, hydrosphere and lithosphere.
For example, the increasing carbon dioxide concentration released by living organisms (biosphere) can cause an increase in global warming i.e. increase in atmospheric (atmosphere) temperature.
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A large photograph displayed on a store’s website would NOT qualify for fair use under which guideline?
Answers
Answer:
copyright
Explanation:
Help PLEASE!!!!!!
Just as energy flows through an ecosystem, matter also moves from organism to organism and from organisms to the environment. Using either a kelp forest or a hydrothermal vent ecosystem as an example, explain how carbon can move through the organisms
Answers
Answer:
The seaweed in the Kelp forest goes through photosynthesis, takes in carbon, other organisms eat the seaweed and take in the carbon.
a temporary or reversible lesion can be produced by
Answers
A temporary or reversible lesion can be produced by a variety of methods, but one common approach is the use of reversible inactivation techniques.
One such technique is called transcranial magnetic stimulation (TMS), which uses a magnetic field to temporarily disrupt brain activity in a specific area. This can produce a temporary lesion, allowing researchers to study the functions of different brain regions.
Another method involves the use of reversible pharmacological agents that can temporarily inactivate specific brain regions. For example, the drug muscimol can temporarily inactivate a specific area of the brain when injected directly into that region. This can produce a temporary lesion that allows researchers to study the functions of that area.
Overall, temporary or reversible lesions can be a useful tool in neuroscience research, allowing researchers to study the functions of different brain regions and better understand how the brain works. However, it is important to use these techniques with care and caution to avoid causing any permanent damage or harm to the brain.
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Can someone answer this please?
Answers
True or false Nonliving things can have some characteristics of life. explain please
Answers
Non-livings things do not exhibit any characteristics of life. They do not grow, respire, need energy, move, reproduce, evolve, or maintain homeostasis. These things are made up of non-living materials.
For example, humans breathe in oxygen to release energy from the foods consumed.
What is the largest object known to man and why?
Answers
Answer:
1234567890
Explanation:
because I said so 12345678901234567890
100 PTS——-Describe a specific detrimental human impact to a particular ecosystem and propose a solution to reduce the harmful effects over time. Explain how your proposed solution will work to minimize effects in that ecosystem.
Answers
Answer: human trash
Explanation:
Because we leave or trash and it decomposes into harmful air or water
Question 4 of 10
The part of your brain that controls basic life support functions is the.
OA. corpus callosum
OB. forebrain
OC. hindbrain
OD. midbrain
SUBMIT
Answers
The part of the brain that is responsible for the control of basic life support functions is the hindbrain. Therefore, option C is correct.
What is the hindbrain?The hindbrain is the lower part of the brainstem, located at the base of the brain. It controls several essential functions of the body. It is composed of three main structures: the medulla oblongata, the pons, and the cerebellum.
The medulla oblongata is responsible for regulating vital autonomic functions such as breathing, heart rate, and blood pressure. It also helps to control reflexes, including swallowing, coughing, and sneezing.
The pons is involved in several functions, including sleep, arousal, and sensory and motor information transfer between different parts of the brain.
The cerebellum, located at the back of the brain, is responsible for coordination and balance. It helps to control movements and maintain posture by sending signals to the muscles and joints. Thus, option C is correct.
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How everyone's blood is different (blood types).
Answers
Answer:
Tge differences in the antigens are what makes one person's blood different from someone else's.
Answer:
There are four blood types: A, B, AB, and O. We won't get into positive and negative Rh factors here.
A and B are codominant, meaning they act like partners when together, forming blood type AB. A and B are both dominant to O. O is completely recessive to all other blood types, meaning that the genotype must contain two O alleles to have Type O Blood.
Type A blood can be AA (h0m0zygous) or AO (heterozygous)
Type B blood can be BB (h0m0zygous) or BO (heterozygous)
Type AB blood is AB (heterozygous)
Type O blood is OO (h0m0zygous)
The various blood types can be combined using Punnett squares to predict probabilities of various blood types.
I hope this answers your question.
The genotypes for both parents are DD and DD for a genetic trait. Their children all have a genetic disorder. Which genetic disorder do they most likely have?
A-hemophilia
B-Duchenne muscular dystrophy
C-Huntington’s disease
D-cystic fibrosis
Answers
Answer:
I think the answer is c
Explanation:
Can someone please mark me brainliest
Answer:
c
Explanation:
on ed