The combination of two or more atomic orbitals results in the same number of hybrid orbitals, each with the same shape and energy, which is the right response.
The process of two complementary single-stranded DNA or RNA molecules joining together to generate a double-stranded molecule is known as hybridization in the field of genomics. Correct base pairing between the two single-stranded molecules controls the bonding. Determine how many lonely pairs are connected to it. Add up these two numbers.
Add up these two numbers.
Your atom is a sp3 if the response is 4.
Your atom is a sp2 if the response is 3.
Your atom is sp if the answer is 2.
To maximize electron stability in their orbitals, hybridization is necessary.
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of the taxa listed on the phylogeny, which is more distantly related (least related) to the lungfish? bats ceolacanths birds caecilians
Coelacanths can be considered as the animals (fish) that form the taxa more distantly related and/or least related to the lungfish in a phylogeny that includes bats, coelacanths birds and caecilians.
What are coelacanths?Coelacanths are fish belonging to both current and already extinct species, which are characterized by having intracranial joints, and one conduit which functions like a backbone for these fish species.
In conclusion, Coelacanths can be considered as the animals (fish) that form the taxa more distantly related and/or least related to the lungfish in a phylogeny that includes bats, coelacanths birds and caecilians.
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blood, which is made up of multiple cell types including red and white blood cells, is an example of a(n)
The blood, which is made up of multiple cell types including red and white blood cells, is an example of a tissue.
What is a tissue?A tissue can be defined as a group of specialized cells that emerges by differentiation and work together to perform a given task (or more than only one) in the body.
In conclusion, the blood, which is made up of multiple cell types including red and white blood cells, is an example of a tissue.
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insecticide resistance if the frequency of a gene for insecticide resistance is (a constant), then its frequency in the next generation is given by the expression
If an insecticide-resistant gene's frequency is constant, the expression for the gene's frequency in the following generation is given by
[tex]f = \frac{p * (1 + s)}{1 + sp}[/tex]
where s represents the reproductive advantage this gene has in the presence of the pesticide compared to the wild type.
Insecticide resistance: what is it?
Organophosphates, carbamates, pyrethroids, neonicotinoids, and other types of insecticides that have a similar chemical makeup and method of action are classified into groups of insecticides (MOA). The precise mechanism by which an insecticide kills an insect or prevents its growth is known as MOA.
A pest population's susceptibility to a certain insecticide or set of insecticides changes heritably over time, which is referred to as insecticide resistance. The term "pesticide-resistant" refers to insects that consistently resist being sufficiently controlled by the registered rate of an insecticide. In areas with high levels of pesticide resistance, applying insecticides at many times the usual rate may not have any impact on bug populations.
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Describe the system
you will model and
how you will model it.
Why did you choose
this type of model?
Answer:
fashion model
Explanation:
because a person who loves fashion will always make sure that he or she's always be a model
improved intravitreal aav-mediated inner retinalgene transduction after surgical internal limitingmembrane peeling in cynomolgus monkeys
Because it is easily accessible and has a mild immune response, the retina makes a good target for gene therapy.
In a mouse model, the inner retina was highly effectively transduced by an intravitreally injected adeno-associated virus (AAV) vector.The vitreous and internal limiting membrane (ILM) operated as obstacles to transduction in large animals, reducing the efficacy of retinal transduction. Before administering AAV vectors, we performed vitrectomy (VIT) and ILM peeling on cynomolgus monkeys to get around these obstacles. The findings suggest that surgical ILM peeling prior to AAV vector delivery would be beneficial for retinal disease treatment and safe for effective transduction of the nonhuman primate retina.Learn more about the adeno-associated virus (AAV) with the help of the given link:
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various terms denote chains of amino acids based on the size of the chains. put the terms protein, peptide, and polypeptide in order from smallest at the top to largest at the bottom.
The correct order is peptide, polypeptide, Protein.
What is Protein?Large molecules and macromolecules known as proteins are made up of one or more extended amino acid residue chains. Among the many tasks that proteins carry out in living things include catalyzing metabolic processes, replicating DNA, reacting to stimuli, giving cells and organisms structure, and moving molecules from one place to another.
The primary way that proteins differ from one another is in the order of their amino acids, which is determined mostly by nucleotide sequence of their genes and typically causes a protein to fold into a certain 3D structure that controls its activity.
A polypeptide is an ordered sequence of amino acid residues. At least one lengthy polypeptide is present in every protein.
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The chains of amino acids from smallest to largest-
- peptide
- polypeptide
- protein
What are amino acids?Organic substances known as amino acids have both functional groups for amino and carboxylic acids. Alpha-amino acids, which make up proteins, are by far the most common amino acids in nature despite the fact that there are hundreds of them. The genetic coding only contains 22 alpha amino acids.
The locations of the primary structural functional groups in amino acids can be categorized as alpha, beta, gamma, or delta amino acids; further classifications relate to polarity, ionization, and the type of side chain group (aliphatic, acyclic, aromatic, containing hydroxyl or sulfur, etc.).
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frebel, h., richter, k. and oxenius, a., how chronic viral infections impact on antigen-specific t-cell responses. eur. j. immunol. 2010.
The ability of a cell or a body to fight against the infection is called immunity. The T cell and B cell helps the body to fight against the infection.
What are T cells?T cell is also called as T lymphocyte, it is also a important part of immune system. T cell originate in the bone marrow and mature into the thymus.
There are three types of T cells:
T helper cellT killer cellsT cytotoxic cells.Helper T cells secrete chemical messengers called cytokines. Regulatory T cells helps to control immune reactions. They are released into blood streams.
Therefore, The ability of a cell or a body to fight against the infection is called immunity. The T cell and B cell helps the body to fight against the infection.
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A woman brings in a spray puppy she has rescued off the street. She wants to adopt the dog.
but it looks sick. The dog seems tired, will not eat, and has diarrhea. Dr. Snyder looks very concerned. He takes a small sample of the puppy's feces and runs a test. Fifteen minutes later he comes back with bad news: the puppy has parvovirus. The disease is often fetal, but many dogs survive with good treatment.
Dr. Snyder tells Lizzie that parvovirus is preventable, and a dog cannot get infected if it is given a shot.
What type of shot would prevent a dog from the parvovirus disease? Explain how this shot protects a
dog so it cannot get sick from a virus.
Answer:
DHPP Vaccine
Explanation:
is used to protect your pet
What roles do membrane proteins play in transporting only certain substances into a cell.
Some allow very specific molecules to pass, even against their concentration gradient. Others work as a one way control. Others let many things go through role do membrane proteins play in transporting only certain substances into a cell.
A molecule is two or more atoms held together by chemical bonds that form the smallest unit of matter that holds its composition and properties. Molecules shape the idea of chemistry. Molecules are marked with element symbols and atomic number subscripts. Atoms are the fundamental devices of elements. They consist of an atomic nucleus and surrounding electrons.
If an atom has an incomplete electron cell, it is said to have valence electrons. When two or more atoms come together to share their outer shell valence electrons, they form a chemical (covalent) bond and enter a lower energy state. When atoms combine, energy is released in an exothermic reaction. When a covalent bond is broken and the molecule splits, an energy input is required, thus making it endothermic.
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4. Newly modified proteins from the rough endoplasmic reticulum must be sent to the Golgi
appartus, where they are further sorted and sent to their proper destinations in the cell. How does
the rough ER send such proteins to the Golgi? How does this process "know" how to find the
Golgi membranes in the cell? Describe the process that is used.
The diagram shows the apparatus used to investigate osmosis.The volumes of solutions A, B, C, and D were the same at the start of the investigation. After one hour, the solutions moved up the glass tubes. Which solution was the most concentrated at the start of the investigation?
Osmosis occurs when water diffuses from the hypotonic solution (more diluted) to the hypertonic solution (less diluted) until the solute concentration is equal on both sides of the membrane. Ans: Solution D.
What is osmosis?When placing two solutions that differ in concentration separated only by a semipermeable membrane, we will see that only water molecules can pass through the membrane, not the solute molecules.
Water moves in favor of its concentration gradient, this is, it tends to go from the hypotonic solution (most diluted) to the hypertonic solution (less diluted), and keeps doing so until concentrations are equal in the cell interior and exterior.
This is an example of passive transport and it is called Osmosis.
In the exposed example, there were four tubes with equal volumes of solutions.
After an hour, volume at each tube was measured and compared,
Solution D was the one that showed the highest level in the glass tube. This result suggests that more water diffused to this tube compared to the other tubes.On the other hand, Solution A is the one that shows the lowest level in the glass tube. This result suggests that little amount of water diffused into this tube.
According to this comparison, we can assume that solution D was the most concentrated at the start of the experiment. A greater amount of water was needed to equal the solute concentrations at both sides of the membrane.
The answer is Solution D was the most concentrated at the start of the investigation.
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37) This Doppler radar instrument transmits electromagnetic energy in the form of microwaves. Some
microwave wavelengths are between the wavelengths of
1) gamma rays and x rays
(2) Infrared and radio waves
(3) ultraviolet and infrared
(4) x rays and ultraviolet
The purpose of weather radar, often referred to as Doppler weather radar, is to locate precipitation, assess its velocity and intensity, and determine the precipitation type, such as rain, snow, or hail. It does this by sending electromagnetic energy pulses into the sky.
Doppler radar may detect the mobility of the rain along the radar beam in addition to the precipitation in a rainstorm (by its reflectivity, or capacity to reflect microwave radiation). To put it another way, it can calculate how quickly hail or rain is travelling towards and far from the radar. The electromagnetic waves used by radar move at a rate of 300,000,000 m/s. A local TV news station's weatherman uses Doppler radar, for instance, to predict storms. A police officer might utilise Doppler radar to gauge the speed of an approaching car as an illustration. Astronomers might use Doppler radar to gauge the speed of a moving star as an illustration.
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si units are the modern form of the
Answer:
Metric system
Explanation:
"The International System of Units (SI) is system of units of measurements that is widely used all over the world. This modern form of the Metric system is based around the number 10 for convenience. A set unit of prefixes have been established and are known as the SI prefixes or the metric prefixes (or units)."
sea urchins are broadcast spawners: they release their gametes into the water without any courtship. which of these reproductive isolation mechanisms is most likely affecting sea urchins? group of answer choices mechanical isolation gametic isolation behavioral isolation habitat isolation
As sea urchins are the broadcast spawners: they all release their gametes into the water without any courtship so they have the gametic isolation
Sea urchins are the spiny, globular echinoderms in the class of Echinoidea. About the 950 species of the sea urchin live on the seabed of the every ocean and that inhabit every depth zone — from the intertidal to seashore they down to 5,000 meters. The spherical, hard shells of the sea urchins are about round and the spiny, that ranging in diameter from the 3 to 10 cm
The Gametic Isolation: the Reproductive Isolation where the mating does occur, but the male and the female gametes which cannot be bind to form the zygote. For example, the surface proteins on the eggs of one of the species prevent the sperm of the wrong species from the entering.
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4. hardwoods reproduce using flowers and have broad leaves; hardwoods include trees such as blank, blank, and blank.
hardwoods reproduce using flowers and have broad leaves; hardwoods include trees such as Oak, teak and iroko.
Woods of the trees can be divided into hardwood and softwood depending on the hardness and compactness of the wood.
hardwoods are the trees that have hard and compact wood like oak, cherry, maple, teak, iroko, etc.
They are more durable, need low maintenance, more costlier as compared to the softwood. They have low sap contain and good resistance against fire.
The seed of hardwoods are covered with a coating which develops into fruits or shells. They are slow growers and mostly belong to angiosperm class.
Softwood are trees with soft wood mostly belonging to gymnosperm group.
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A scientist isolated DNA from a particular bacterium and decided to analyze it. The sequence of the bacterial DNA is ATGGGCTASTCTT What will
the complementary strand be?
complementary strand of ATGGGCTASTCTT will TACCCGATAGAA
Base Pairing is a principle that bonds in DNA can form only between adenine and thymine and between guanine and cytosineReplication is process of copying DNA prior to cell divisionDNA Polymerase copys DNA prior to cell divisionTransformation is process in which one strain of bacteria is changed by a gene or genes from another strain of bacteriagene is section of DNA that codes for a specific traitgenome is the entire "library" of genetic instructions in DNA that an organism inheritsgenotype is the combination of alleles located on homologous chromosomes that determines a specific characteristicTo know more about complementary strand visit :
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a(n) is a compound that is produced in one tissue, released into circulation, then has an effect on a different organ.
The "hormone" is that compound which produced in one tissue, released into circulation, then has an effect on a different organ.
A family of signaling molecules known as hormones is delivered from distant organs in multicellular animals to control physiology and behavior. The proper development of fungi, plants, as well as animals depends on hormones.
Hormones are directly released into the bloodstream by endocrine glands. Numerous bodily processes, including growth, repair, and reproduction, are regulated by hormones. Numerous organ systems including hormones, including several that have been currently being studied and understood, were part of the endocrine system.
An agonistic relationship exists when one hormone would be required for the effects of a second hormone to manifest.
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Suggest why farmers in low-income countries may not use selective herbicides
Answer:
Many farmers in developing countries view pesticide use as the best means to
protect their crops against pests, such as desert locusts in parts of Africa this year, which are often the main
threat they face. As such, pesticides can provide the only form of crop insurance available.
Explanation:
During which weeks in the moon’s cycle does the moon appear to be getting smaller? (1 point)
A. week 3 and week 4
B. week 1 and week 4
C. week 1 and week 2
B. week 2 and week 3 pls help I need this
list three questions that microbiologist might ask about what he or she is studying
Answer:
Just go with something kind of simple like...
ex: "What caused this virus to mutate or come to be?" or "Where could I find this fungi and what are the perfect environmental conditions for it to grow in?"
Explanation:
"Microbiologists study microorganisms such as bacteria, viruses, algae, fungi, and some types of parasites. Work Environment: Microbiologists work in laboratories and offices, where they conduct scientific experiments and analyze the results."
How do you think the density of two pieces of gold, one small and one large, would compare?
Answer & explanation:
Density is a fixed thing. The density of a molecule will not change, no matter how much of that molecule there is. A small and a large piece of gold will have the same density, but different weight, because the larger something is the more effect gravity will have.
Please help due soon.
Answer:
eutrophication (last second)
the golden carp had lived in that harbor all her life and watched with concern as the human port town grew thick and dense like riverweed. what does the phrase grew thick and dense like riverweed suggest about the port town?
The phrase grew thick and dense like riverweed suggest that the port town had its population increasing and is therefore denoted as option A.
What is Population?This is defined as the total number of people which are present in an area at a given point in time and are based on several factors such as availability of food, job opportunities etc.
We were told that the human port town grew thick and dense like riverweed. The words 'thick' and 'dense' were used which signifies an increase in the amount of something which in this case is referred to as the population which is therefore the reason why a population increase was chosen as the most appropriate choice.
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The options are:
The town population is increasing.The town is foggy and difficult to see.The riverweed has spread to the town.The townspeople have built many new buildings.As a researcher, you were asked to grow a cell in a medium containing radioactive nucleotides, which then get incorporated into dna. Upon later examination, the radioactivity appeared to be concentrated in the.
As a researcher, you were asked to grow a cell in a medium containing radioactive nucleotides, which then get incorporated into DNA. Upon later examination, the radioactivity appeared to be concentrated in the Nucleus.
What exactly is a nucleus?
A nucleus is a double-membraned eukaryotic cell organelle that houses genetic material. A diagram of the nucleus highlighting the various components. Furthermore, only eukaryotes have a nucleus, while prokaryotes have a nucleoid.
What are nucleotides?Nucleotides are biochemicals found in mothers' milk that consist of one molecule of phosphoric acid, one molecule of sugar (ribose or dextrose), and one molecule of a purine or pyrimidine. Enzymatically produced nucleotides total five. Nucleotides have been added to some infant formulas to simulate mother's milk.
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the acquired pellicle forms on: group of answer choices restorations. exposed tooth surfaces. dental calculus. dental crowns. all of these are correct.
The acquired pellicle forms on all of the above mentioned that is on restorations, exposed tooth surfaces dental calculus and dental crowns.
A protein film known as the dental pellicle, also known as an acquired pellicle, develops on the surface of enamel, dentin, artificial crowns, and bridges as a result of the selective binding of salivary glycoproteins that stop the continuous deposition of salivary calcium phosphate. It develops quickly after brushing a tooth or after chewing. After consuming carbs, it shields teeth from the acids that oral microbes produce.
Plaque is a biofilm that forms over the enamel of the pellicle and is made up of numerous types of bacteria and their byproducts. If the plaque is not removed, the surrounding environment will become acidic after several days to weeks of plaque production.
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cartilaginous fish (chondrichthyes): have a swim bladder. have teeth mineralized by calcium phosphate. are generally freshwater species. have well-developed kidneys.
Cartilaginous fish Chondrichthyes have teeth mineralized by calcium phosphate. The correct option is B.
What are Chondrichthyes?Chondrichthyes is a class of cartilaginous fishes, which have skeletons made primarily of cartilage.
They differ from the Osteichthyes, or bony fishes, which have skeletons made mostly of bone tissue.
Calcium phosphate mineralizes the teeth of cartilaginous fish. Mineralization of teeth is an operation in which living organisms incorporate cellular material with environmental minerals.
This process occurs to form a matrix structure, which usually results in harden structures such as tooth enamel or bone matrices.
Thus, the correct option is B.
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which question is most closely related to the feild of biology
The question most closely related to biology is, what influences the fish population's growth rate?
What kind of subject is biology?
The study of living things and their essential functions is the subject of the science known as biology. Botany, conservation, ecology, evolution, genetics, marine biology, medicine, microbiology, molecular biology, physiology, and zoology are only a few of the many disciplines included under the umbrella term "biology."
Books in this topic area are on biology, which is the study of living things. It focuses more specifically on all living organisms' structure, function, growth, origin, evolution, distribution, and classification.
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The concentration of solute is less on one sides of the membrane causing water to move into the cell causing the cell to swell.
When a cell is immersed in a hypotonic solution, the volume of the cell will rise as it will cause will be a net inflow of water inside the cell. If the concentration of solutes outside the cell is lower as compared to inside the cell and when the solutes are not able to cross the membrane, then the solution is called hypotonic to the given cell.
The ability of an extracellular solution to induce water to osmotically enter or depart a cell is known as tonicity.
Three terms—hypertonic, hypotonic, and isotonic—are employed in order to evaluate if a solution would cause water to move into or out of a cell:
If a cell is immersed in a hypertonic solution, it will lose volume because there will be a net flow of water out of the cell.A cell will shrink if it is submerged in a hypertonic solution because water will escape the cell. Since there is no net water movement in an isotonic environment, the cell's size remains constant. A cell will absorb water and swell when it is exposed to a hypotonic environment.Learn more about osmosis here:
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these bacteria, archaea, and eukaryotic microbes are found in our skin, nose , mouth , gut, and genital/urinary tract. what do we call this?
The correct answer is Human Microbiome Project where bacteria, archaea, and eukaryotic microbes are found in our skin, nose , mouth , gut, and genital/urinary tract .
The Human Microbiome Project's goal is to characterise the human microbiome and investigate its role in human health and disease. The human microbiome is defined as the collection of microbes that inhabit the human body, including bacteria, viruses, and single-cell eukaryotes. The HMP's goals are to: (1) use new, high-throughput technologies to characterise the human microbiome more fully by studying samples from multiple body sites from at least 250 "normal" volunteers; and (2) see if there are any links between changes in the microbiome and health. The human microbiota is made up of the 10-100 trillion symbiotic microbial cells that each person carries, primarily bacteria in the gut; the human microbiome is made up of the genes that these cells carry.
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list and describe the three variables of freshwater habitats that are different from variables that affect land habitats.
The habitat which affects the land habitats is temperature, water and moisture, and light.
What are land habitats?Different factors affect temperature, water, and moisture. Air, water and temperature, and many other factors affect the climatic conditions and affect the habitat as well.
Habitat is a dwelling place of animal. Birth rate, death rate and immigration are also some of the factors which affect the habitat.
Biotic factors, abiotic factors also affect the land habitat. Soil culture, soil shape and other factors also affects the land habitat.
Therefore, The habitat which affects the land habitats is temperature, water and moisture, and light.
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