Experiment: Water Properties: Why were the results with just water so much different than the trials with the detergent?
Answer:
Explanation:
Water is a universal solvent whose molecule are joined together with a force of attraction. Its surface tension is hidden between bonds. When washing, soap is added for easy penetration of water molecule and to decrease the surface tension. This then allow the water to move freely round the object been washed.
Detergent aid the distribution of water, of water is used alone without the detergent then the surface area of water will not be reduced to all even spread. But, if detergent is added the tension is reduced and a better result is obtained.
two immune cell subsets are implicated by these data as important regulators of hiv replication and the rate of disease progression?
The two immune cell subsets implicated as important regulators of HIV replication and disease progression are CD4+ T cells and CD8+ T cells.
CD4+ T cells are the primary targets of HIV and their depletion leads to immune dysfunction. CD8+ T cells, also known as cytotoxic T cells, play a crucial role in controlling viral replication by recognizing and killing infected cells. Their antiviral activity can slow down the progression of HIV infection. Both subsets are vital for maintaining an effective immune response against HIV. Understanding their dynamics and function is crucial for developing strategies to enhance immune control and limit disease progression in individuals with HIV.
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BRAINELIST!!! I need ASAP!!
Tropism is a plants growth in response to a stimulus, like light, gravity, and water. These growth responses are controlled by plant hormones. Gibberellins are hormones produced in the root tips of plants to stimulate the growth of shoots.
Which system carries gibberellins produced in the roots to the rest of the plant?
Vascular system
None of these
Dermal system
Reproductive system
Answer:
its the vascular system
Explanation:i know beacuse and my name is coden btw
Answer:
Vascular system
Explanation:
what is the substrate molecule that initiates this metabolic pathway? b. what is the inhibitor molecule c. what type of inhibitor is it? d. when does it have the most significant regulatory effect? e. what is this type of metabolic control called?
The substrate molecule that starts this metabolic pathway is threonine. The molecule of inhibition is isoleucine. It comes under non-competitive inhibition
When does it have significant regulatory effect?when it connects to an allosteric site, it has the most substantial regulatory impact. The non-active site of an enzyme is in which the allosteric inhibitor interacts. The active site's architecture is altered to prevent the enzyme from binding to its substrate.
What is the name of this kind of metabolic regulation?Through feedback inhibition, isoleucine inhibits threonine deaminase from working. Noncompetitive inhibitors are used in a common biochemical process called feedback inhibition to modulate some enzyme activity. In this process, the finished item blocks the enzyme that catalyses the initial reaction in a chain of reactions.
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4. If a bear walks 2 miles east, then 5 miles west, what is its total displacement?
(5 Points)
It's total displacement is 7 miles
Term of : 5th day in development of the conceptus. process in which the blastocyst arrives in the uterine cavity where it floats for a day or two before 'implanting' in the soft, blood-rich uterine lining, which has spent the past 3 weeks preparing for its arrival
A developing embryo that is travelling through a uterus as a blastocyst undergoes a procedure called implantation in which it contacts the uterine wall and remains attached to it until birth.
As the blastocyst develops, the uterine lining (endometrium) undergoes numerous internal alterations to get ready for the attachment. The embryo will slough off during menstruation if these alterations are not made; otherwise, implantation will not take place.
Although not all animals have it, such implantation is a characteristic of mammals. Additionally, among the mammals that display implantation, the processes in the mammals in which the females have menstrual cycles and those in which the females have estrous cycles differ in a number of important ways. Women of all primate species, including humans, experience menstruation, which results in identical implantation procedures.
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Coral reefs are one of the most valuable ecosystems on
Earth. Use at least two pieces of evidence from the text to
support your answer.
Coral reefs are an important source of income for millions of people, as well as an important home for marine life and a barrier against the effects of large waves for coastal communities.
Why are coral ecosystems crucial, then?Coral reefs support local economies, provide opportunities for recreation, and act as a barrier for erosion & storm damage. Also, it is a source of nutritious food and medicine. Reefs are essential for the safety, livelihood, and nourishment of more over 500 million people.
What function do coral reefs provide in the natural world?Coral reefs are an important source of income for millions of people, as well as an important home for marine life and a barrier against the effects of large waves for coastal communities. Coral reefs are abundant with diverse life.
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where is dense connective tissue found on a long bone
Answer:
Dense connective tissue is found surrounding the shaft of the bone, although it does not cover the ends of the bone.
Explanation:
plantar warts, or verrucae, are caused by: group of answer choices several fungal species. handling certain reptiles. viruses. poor hygiene. pressure from ill-fitting shoes.
Plantar warts, or verrucae, are caused by viruses. Plantar warts are warts that appear on the soles of the feet. They are caused by the human papillomavirus (HPV), which can enter the body through tiny breaks in the skin. They are usually harmless and can go away on their own over time.
However, they can be uncomfortable, especially when walking or standing, and may spread to other areas of the foot. What are the symptoms of plantar warts? Plantar warts may appear as a solitary wart or as a cluster of warts. They are typically small, grainy bumps with black specks (clotted blood vessels) that appear on the soles of the feet. They may be painful when pressed and can cause discomfort while walking or standing.
They can also be mistaken for corns or calluses. Plantar warts are caused by the human papillomavirus (HPV). The virus enters the body through tiny breaks in the skin. Walking barefoot in public areas, such as locker rooms or swimming pools, can increase the risk of developing plantar warts. HPV is contagious and can be spread by contact with an infected person or surface.
Most plantar warts will go away on their own over time. However, if they are painful or spreading, treatment may be needed. Over-the-counter treatments, such as salicylic acid or freezing treatments, may be effective. In more severe cases, laser treatment or surgical removal may be necessary. Your healthcare provider can help determine the best treatment for your situation.
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what elements are carbohydrates made of?
Answer: carbon, hydrogen, oxygen or (c, h, o)
Explanation:
is a stretch of dna consisting of an operator, a promoter, and genes for a related set of proteins, usually making up an entire metabolic pathway.
Operon is a stretch of DNA consisting of an operator, a promoter, and genes for a related set of proteins, usually making up an entire metabolic pathway.
A grouping of genes along the DNA that code for functionally similar proteins is known as an operon and is a genetic regulatory mechanism that is present in bacteria and their viruses. Because of this property, protein production can be coordinated to meet the demands of the cell.
An operon is a collection of genes that are all translated into the same mRNA and share a common promoter. Operons come in two different varieties: lac and trp. The lac operon is an inducible operon that is present in Escherichia coli and encodes the genes involved in the catabolism of lactose.
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Directions: Select the correct answer from the drop-down menu.
A student draws a map showing the Mid-Atlantic Ridge between South America and Africa.
Mid-Atlantic
Ridgs,
Х
She explains that scientists extracted rocks from the ocean floor at point X and point Y during a research study.
Evidence of seafloor spreading would come from observed data that rocks from point X are
rocks from point Y.
than
older
Reset
Next Question
younger
found in shallower ocean water
found in deeper ocean water
Answer:
found in shallow ocean water
The genotype for one parent is FfGg . Which of the following best represents all possible genotype combinations for this parent's gametes?
F, f, G,g
FG, Fg, fG, fg
Ff, GG
Ff, GG, FG, fG
Please provide explanation
The genotype of the parent is FfGg, which means that it is heterozygous for two different genes, F and G. During meiosis, the homologous chromosomes will separate and only one allele of each gene will be present in the gametes.
To determine the possible gametes that can be produced by the parent, we need to perform a Punnett square. The Punnett square for this parent will have two rows and two columns, representing the possible alleles for each gene.
F f
G FG
g fG
From the Punnett square, we can see that the possible gametes for this parent are FG, Fg, fG, and fg. Therefore, the correct answer is:
FG, Fg, fG, fg
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Select the definition of a microsatellite.
- pieces of DNA that can move through the genome by transposition - small DNA sequences that are repeated consecutively a few times to many times
- short DNA sequences essential for the excision of introns - segments of DNA cut by restriction enzymes
- small pieces of circular DNA found in mitochondria
The correct option is B definition of a microsatellite is: small DNA sequences that are repeated consecutively a few times to many times. These repeated sequences can be found throughout the genome and are often used in genetic studies, such as population genetics and paternity testing.
Microsatellites, also known as simple sequence repeats (SSRs), are short DNA sequences that are repeated consecutively a few times to many times. The length of these repetitive regions varies from 1 to 6 bp, with the total number of repeats varying from less than 10 to over 100.These microsatellites are widely distributed throughout the genome of various organisms, from simple microbes to complex mammals, and are found in both coding and non-coding regions of the DNA. Microsatellites have been used for a variety of genetic studies, including population genetics, phylogenetics, disease mapping, and forensic identification.The correct option is B.Learn more about microsatellites: https://brainly.com/question/31108875
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The following pertain to transcription Group of answer choices a. occurs before translation b. requires RNA polymerase c. occurs on the cell membrane d. a and b
The answer is d) a and b.
What is the role of RNA polymerase in transcription?The primary transcription enzyme is RNA polymerase. When RNA polymerase connects to a promoter sequence near the start of a gene, transcription starts (directly or through helper proteins). To create a fresh, complementary RNA molecule, RNA polymerase employs one of the DNA strands (the template strand) as a template.Three distinct RNA polymerases (RNAPs) transcribe various kinds of genes in all eukaryotes. RNA genes are transcribed by RNA polymerase I, mRNA, miRNA, snRNA, and snoRNA genes are transcribed by RNA polymerase II, while tRNA and 5S rRNA genes are transcribed by RNA polymerase III.The majority of ribosomal RNA (rRNA) transcripts are created by RNA polymerase I2. These transcripts are created in the nucleolus, where ribosomes are put together in the nucleus.The nucleolus, a specialized nuclear substructure where ribosomal RNA (rRNA) is translated, processed, and put together to form ribosomes, is where RNA polymerase I is found (Table 1).
The following pertain to the transcription Group of answer choices:
The answer is d) a and b.
Transcription occurs before translation and it requires RNA polymerase to initiate the process.
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The genes required to produce the ____________ needed to digest lactose sugar are under the control of one ____________ , meaning they are transcribed at the same time.
The genes required to produce the enzymes needed to digest lactose sugar are under the control of one promoter , meaning they are transcribed at the same time.
What is enzyme and promoter?According to genomics, a promoter is a region of DNA upstream of a gene where pertinent proteins bind to start that gene's transcription. A molecule of RNA is created as a result of the transcription.A promoter is a section of DNA where a gene first begins to transcribe. In expression vectors, promoters are crucial because they control how RNA polymerase binds to DNA.DNA is converted to mRNA by RNA polymerase, and mRNA is then translated into a useful protein.Any element that is added to a catalyst to boost activity or selectivity is called a promoter. Examples include the addition of tin to platinum reforming catalysts to enhance coke formation selectivity and the addition of chloride to isomerization catalysts to boost activity.Learn more about enzyme and promoter here:
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which structure is unique to living organisms a-caspid b- nucled acids c-nucleus d- cytoplasm
Answer: I believe the answer is B - Nucled Acids.
Hope this helps.
Energy that is produced by the surge of ocean waters during the rise and fall of tides; a type oof renewable energy.
Answer:
Tidal energy
Tidal energy is a renewable energy powered by the natural rise and fall of ocean tides and currents. Some of these technologies include turbines and paddles. Tidal energy is produced by the surge of ocean waters during the rise and fall of tides. Tidal energy is a renewable source of energy.
Explanation:
list 3 materials that contain the stored carbon
Answer:
Coal, oil, peat or natural gas
how do cells get the correct number of chromosomes?
Answer:
"During cell division, a mother cell divides into two daughter cells, and during this process, the DNA in the mother cell, wrapped up in the form of chromosomes, is divided into two equal sets. ... This finding gives us a glimpse of an important step in the process of cell division."
Explanation:
Gram-negative bacteria are surrounded by two membrane bilayers separated by a space termed the periplasm. The periplasm is a multipurpose compartment separate from the cytoplasm. The periplasm has a distinct oxidizing environment that allow certain key protein structural features to be formed. Can you identify an amino acid(s) that would be affected by this oxidizing environment? How would it be affected, and what structural features would be sensitive to this environment? Can you discuss the implications of this from a standpoint of recombinant protein expression? (200-500words)
The oxidizing environment of the periplasm in Gram-negative bacteria can affect cysteine residues in proteins by promoting the formation of disulfide bonds.
In the oxidizing environment of the periplasm in Gram-negative bacteria, cysteine residues in proteins can be affected. The oxidizing conditions promote the formation of disulfide bonds between cysteine residues, which can significantly impact the protein structure and stability. Recombinant protein expression in this environment may require careful consideration of disulfide bond formation to ensure correct protein folding and functionality.
The oxidizing environment of the periplasm in Gram-negative bacteria provides conditions favorable for the formation of disulfide bonds between cysteine residues in proteins. Cysteine is an amino acid that contains a thiol (-SH) group, which can be oxidized to form a disulfide bond (-S-S-) under oxidizing conditions. This process is facilitated by enzymes called protein disulfide isomerases.
The formation of disulfide bonds can greatly impact protein structure and stability. Disulfide bonds contribute to the folding and stabilization of proteins, as they form covalent links between different regions of the polypeptide chain. Disulfide bonds can stabilize protein domains, maintain tertiary and quaternary structures, and influence protein-protein interactions.
From a standpoint of recombinant protein expression, the oxidizing environment of the periplasm presents both opportunities and challenges. If a recombinant protein contains cysteine residues that are sensitive to oxidation, the formation of incorrect disulfide bonds or misfolding may occur, leading to loss of protein function. To successfully express recombinant proteins in the periplasm, strategies such as optimization of codon usage, addition of molecular chaperones, or using strains with modified redox environments may be employed to ensure proper folding and disulfide bond formation.
This has significant implications for recombinant protein expression, as it requires careful consideration of disulfide bond formation to ensure correct protein folding and functionality in the periplasmic environment.
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While hiking in the Andes Mountain in South America, Darwin found a glyptodon fossil that resembled the modern armadillo. This evidence was used by Darwin to support his theory of natural selection by showing how species have
A.gone extinct.
B.slowly changed over time.
C.blended genetic material.
D.never changed.
Answer:
D
Explanation:
Why all of the expected structures were not observable
The reason of the expected structures were not observable is microscope not that advanced
In the field of microscopy, the resolution and capability of the microscope play a crucial role in determining which structures can be observed and which cannot. The expected structures may be too small or too complex to be resolved by the available microscopy techniques.
For instance, if the structures of interest are smaller than the wavelength of light, then conventional optical microscopy will not be able to visualize them. In this case, other microscopy techniques such as electron microscopy or atomic force microscopy may be required.
Moreover, some structures may be too delicate or sensitive to be observed under normal conditions, and attempts to observe them may damage or alter the structure. Additionally, some structures may only exist under specific conditions or may be obscured by other components in the sample, making them difficult to observe.
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The given question is incomplete, the complete question is:
When we observe structures using microscope, why all of the expected structures were not observable?
The wind chill, which is experienced on a cold, windy day, is related to in- creased heat transfer from exposed human skin to the surrounding atmosphere. Consider a layer of fatty tissue that is 3 mm thick and whose interior surface is maintained at a temperature of 36°C. On a calm day the convection heat transfer coefficient at the outer surface is 30W/m².K, but with 30 km/h winds it reaches 85W/m². K. In both cases the ambient air temperature is -20°C. Use Table A.3 to get the thermal conductivity of fatty tissue. (a) What will be the skin outer surface temperature for the calm day? For the windy day? (b) What is the ratio of the rate of heat loss per unit area from the skin for the calm day to that for the windy day? (c) What temperature would the air have to assume on the calm day to produce the same heat rate occurring with the air temperature at -20°C on the windy day?
Answer:
yo no c
Explanation:
estoy muy confundida porque no esta en espanol????????
Why does electric current flowing through wire lose energy?
What makes up everything around us?
Explain in detail what all living organisms are made of using the following terms: matter, atoms, elements,
compounds, and chemical bonds.
Answer:
Matter is anything and everything that has mass. Thats what makes up everything around us
Explanation:
An organism that has one dominant allele and one recessive allele for a trait is referred to as being ________________ for that trait.
Answer:
Heterozygous
Explanation:
Hetero is derived from the root meaning 2 different. Since the organism has 2 different alleles for the trait, it is heterozygous.
When cells are damaged, they release proteins called ____ ?
inflammatory chemical signals that evoke local vasodilation
When DNA is unzipped, the
bonds are broken.
O Nitrogen
O Hydrogen
O Covalent
O lonic
Answer:
Explanation: Helicases are enzymes involved in unzipping of the double stranded DNA molecule at beginning of DNA replication. They do so by binding at DNA sequences called origins on DNA molecule then they break the hydrogen bonds between complementary base pairs causing the two strands of DNA molecule to unzip.
Explanation:
The genotypes AA and Aa always show up as the (1 Point) phenotypeO dominant O genotypeO recessive
The genotypes AA and Aa always show up as the dominant.
Dominant and Recessive GenesGenes are the material that carries the properties of the parent and are passed on to their filial or offspring. Genes are attached to chromosomes and chromosomes are contained in the nucleus or cell nucleus.
Chromosomes in the body are usually in pairs. In humans, there are 46 or 23 pairs of chromosomes. 22 pairs are autosomal chromosomes, namely the chromosomes that make up the body, such as the eyes, nose, legs, hands and other organs.
One more pair is called the genosome chromosomes, namely the sex chromosomes, the chromosomes that determine the sex of the individual. When the chromosomes pair X and X (XX), the sex is female. And if the chromosome pair is X and Y (XY), then the sex is male.
Chromosomes contain genes and the inherited genes are dominant and recessive. Dominant trait means, a trait that dominates and overpowers other traits. For example, both parents have olive and black skin tones. And it was obtained that all of his offspring had olive skin color.
This means that the olive skin color gene is dominant over the black skin color gene. The black gene is called a recessive gene, that is, a gene that is hidden and defeated.
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