The surface of the nucleus is bounded by two phospholipid bilayer membranes, collectively called the nuclear envelope . The boundary of the nucleus is referred to as the nuclear envelope. It includes phospholipid bilayers: an outer membrane and an internal membrane. The nuclear membrane is non-stop with the endoplasmic reticulum.
The nuclear envelope, additionally referred to as the nuclear membrane, is made of lipid bilayer membranes that during eukaryotic cells surrounds the nucleus, which encloses the genetic material. The nuclear envelope includes lipid bilayer membranes: an internal nuclear membrane and an outer nuclear membrane.
The nuclear envelope has a complicated structure, inclusive of nuclear membranes, an underlying nuclear lamina, and nuclear pore complexes . The nucleus is surrounded with the aid of using a machine of concentric membranes, referred to as the internal and outer nuclear membranes.
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Oxygen and carbon are:____.
a. rarer than almost all other elements
b. found only on worlds close to a star
c. the third and fourth most abundant elements in the universe
How could the loss of biodiversity affect humans?
The loss of biodiversity could affect humans by leading to the loss of potential medicine, foods and products and is therefore denoted as option B.
What is Biodiversity?This refers to the variations which exists between organisms which are present in different types of ecosystem.
Lack of variation means there will be shortage of organisms which have differences in their traits or features. This isn't ideal because these differences may be as a result of natural selection which makes them fitter therefore having more beneficial properties.
These are therefore the most appropriate ways in which the loss of biodiversity affect humans.
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Under a microscope, gram-positive bacteria (when dyed with the gram stain) appear _____.
Under a microscope, gram-positive bacteria (when dyed with the gram stain) appear in purple-colored structures due to the peptidoglycan cell wall.
What are gram-positive bacteria?Gram-positive bacteria are microorganisms (bacteria) that may be colored with crystal violet stain due to the presence of a peptidoglycan-based cell wall.
In conclusion, under a microscope, gram-positive bacteria (when dyed with the gram stain) appear purple-colored structures due to the peptidoglycan cell wall.
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Temperate climates are not usually conducive to organic preservation at archaeological sites because of?
Temperate climates are not usually conducive to organic preservation at archaeological sites because of variable temperatures and fluctuating precipitation
What is Climate ?The long-term pattern of the weather in a place is called the climate. Hour by hour, day by day, month by month, or even year by year, the weather might change. A region's climate is determined by its weather patterns, which are typically monitored for at least 30 years.
The average of the weather is the climate. As an illustration, you can anticipate snow in the Northeast in January or hot and muggy weather in the Southeast in July. Climate is this. Extreme values, such as record-breaking high temperatures or heavy rainfall, are also part of the climatic record.Learn more about Climate here:
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A heritability coefficient of ____ means about 50 percent of the difference between people on a specific characteristic is the result of heredity.
A heritability coefficient of 0.5 means about 50 percent of the difference between people on a specific characteristic is the result of heredity.
Heritability coefficient tells about how the differences in genes of people accounts for their phenotypic differences. It is represented as H² . The formula for calculation of Heritability coefficient is H² = Var(G) / Var(P), where Var(G) is the variance in genotype and Var(P) is the variance in phenotype. The values range from 0 to 1. If the value is 1, then phenotypic difference is due to genetic differences. And if the value is 0 then phenotypic differences are due to environmental factors.
Heredity is the passing on of the traits from one generation to another. An offspring receives half of its genes from the mother and half from the father.
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In many cases, even after a consultation, patients become truly alarmed by the symptoms and thus delay taking recommended treatments and tests etc. to _____.
avoid thinking about the illness
In many cases, even after a consultation, patients become truly alarmed by the symptoms and thus delay taking recommended treatments and tests etc. to avoid thinking about the illness
What does treatment delay mean?When a patient doesn't receive the prescribed treatment within the expected time frame, regardless of whether it's a drug, lab test, physical therapy, or another type of treatment, there has been a delay in care.Why do people hesitate to seek medical attention?The most frequent explanation given by individuals who delayed seeking medical care was financial concerns (59%), followed by an unclear reason (22%), an inability to schedule an appointment on time (16%), and a lack of transportation (10%).What are the effects of postponing treatment?Conditions becoming worse. Medical issues may get worse if treatment is put off. If your health issue isn't serious or life-threatening, temporarily postponing surgery might not seem like a big concern. However, tiny issues can swiftly worsen if they aren't appropriately addressed in a timely manner.To lean more about treatment delay visit:
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A post office receives lots of incoming mail, organizes it, and then sends it out to various locations. which part of the brain is a lot like a post office?
The thalamus is the part of the brain that is a lot like a post office.
What is the thalamus?Thalamus may be defined as an egg-shaped structure in the middle part of your brain. The thalamus is significantly composed of numerous nuclei that each function in a unique role ranging from relaying sensory and motor signals, as well as, regulating consciousness and alertness.
Due to high and lot of nerve and electrical impulses throughout the involves this important region or part of the brain. It creates heavy traffic in this area.
Due to receiving lots of incoming signals, organizing them, and then sending them out to various locations of the body, this part of the brain is known as the post office.
Therefore, the thalamus is the part of the brain that is a lot like a post office.
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What is function/purpose of RNA
Functions of RNA :
Regulation of gene expressionProtein codingProduction of regulatory moleculesDevelopment of gametes by the ncRNA (non-coding RNA)In the stomach, food processing continues and secretions from stomach glands aid the initial digestion of:________
Food processing continues in the stomach, and stomach gland secretions help with the initial breakdown of proteins.
Define digestion:In order to be absorbed into the watery blood plasma, large, insoluble food molecules must be broken down into smaller, water-soluble food molecules during digestion. These tiny molecules enter the bloodstream through the small intestine in some organisms.
What makes digestion important?Food must be digested in order to be broken down into nutrients that the body may use for energy, development, and cell repair. Before being absorbed by the blood and transported to the cells throughout the body, nutrients from food and drink must first be broken down into smaller molecules.
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The human heart is an organ that is made up of cells. not all of the cells that make up the heart are identical, however. what name is given to a group of similar cells that perform a special function and together make up an organ? question 1 options: embryo system tissue organelle
The correct option is (c) Tissue
A collection of cells with similar structures and functions is referred to as a tissue.
What is Tissue?A collection of cells with similar structures and functions is referred to as a tissue. Histology is the study of tissue. The intercellular matrix, a nonliving substance, fills the spaces between the cells. There might be a lot of this in some tissues and not much in others. A particular tissue may have special components in its intercellular matrix, such as fibers and salts, that are specific to that tissue and give it specialized properties. The body is made up of four different types of tissue: epithelial, connective, muscular, and nervous. Each has a purpose for which it was created.Learn more about the Tissues with the help of the given link:
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What might be a likely outcome if a mutation occurred in a promoter region of a gene, such that it were no longer recognized by rna polymerase?
The cell would not be able to produce any proteins if a mutation occured in a promoter region of a gene ,such that it was no longer recognized by RNA polymerase.
What is mutation and its cause ?A mutation is a change in the DNA sequence of an organism. Mutation can result from errors in DNA replication during cell division ,exposure to mutagens or a viral infection.
Mutation result either from accident during the normal chemical transaction of DNA ,often during replication or from exposure to high energy radiation.
Mutation in the the promoter resulted in a change in DNA binding pattern of the AP-2 transpiration factor.
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What changes occur in extracellular and intracellular fluid compartments during dehydration?
Answer:
cellular shrinkage and metabolic dysfunction.
Explanation:
In dehydration, fluid from the extracellular compartment is depleted first, followed by fluid from the intracellular space. Fluid loss from the intracellular space results in cellular shrinkage and metabolic dysfunction. Dehydration occurs because of decreased water intake, increased fluid loss, or both.
First source of energy in living things.
The strong force holds the protons of an atom together
true
false
-Sketch the difference between animal cell and plant cell.
Approximately what percentage of all osteopaths practice in primary care areas?
Approximately 65% percentage of all osteopaths practice in primary care areas.
The definition of osteopathyOsteopathic medicine is a system of medical care that emphasizes a holistic and all-encompassing approach to patient care and makes use of manipulating the musculoskeletal system in addition to other therapeutic techniques (such the use of medications or surgery) to prevent and treat disease.How does an osteopath practice?In order to aid the body in healing itself, an osteopath strives to return the joint's normal function and stability. They employ both mild and strong methods to treat your body with their hands in a variety of ways. Depending on the patient as a whole and the symptoms they have described, several techniques are selected.To learn more about osteopathy visit:
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If someone had a cut in their skin through which a bacterium entered, but that bacterium was then destroyed by a neutrophil, this would be an example of?
Failed external innate immunity, but successful internal innate immunity
What is Immunity ?Immunity in biology refers to an organism's capacity to fend off harmful microbes. Both specific and generic components contribute to immunity. Regardless of their antigenic makeup, the nonspecific components serve as barriers to or eliminators of a variety of infections.
There are two types of immunity: active and passive. Active immunity happens when our own immune system defends us against a pathogen. When we are shielded against a virus by immunity we have acquired from another person, this is known as passive immunity.Learn more about Immunity here:
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An unconditioned stimulus ____. a.is paired with a conditioned response b.requires conscious effort c.automatically triggers a physiological reflex d.is acquired through practice
An unconditioned stimulus c. automatically triggers a physiological reflex
What is matched with an unconditioned stimulus?In Pavlovian conditioning, an originally neutral stimulus that is paired with the unconditioned stimulus is known as a conditioned stimulus. For instance, a tone was heard shortly before the air puff reached the cornea of the eye.
The meal served as the unconditioned stimulus in Pavlov's experiment. A reflexive response to a stimuli is referred to as an unconditioned response. In Pavlov's experiment, the dogs' unconditioned reaction was their salivation for food.
Unconditional behaviour does not require learning; it is innate and natural. Only until an unconditioned stimulus has developed a mental association with a conditioned stimulus can a person acquire a conditioned response.
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Predict what type of epithelial tissue would be found in an organ that needs to prevent water loss.
Answer:
stratified squamous epithelium
Explanation:
Functions include protection against microorganisms and protection against water loss
If the pedigree is for an autosomal recessive characteristic, which individuals are definitely heterozygous?
Pedigrees are tools used to track a gene or a phenotype through several generations of a family's history. Option C is correct. I-1, I-2, II-4, II-5, III-1
What is a pedigree?A Pedigree is a tool used to represent a family's history and to trace a feature in the family.
It is used to track a trait through generations, and analyze the inheritance pattern of a particular gene and its expression.
It is used to understand how genes are transmitted from the parental generation to the descendants, and what are the probabilities of inheriting them.
Pedigree interpretation,
Family members→ Individuals are represented with geometrical figures.
→ Males are squares
→ Females are circles
Trait/Phenotype→ Healthy/normal/not affected individuals are represented with empty figures
→ Affected/mutated individuals are represented with solid black figures
Generations→ Each file is represented with a roman number, indicating the Generation.
To analyze this example, we will assume the feature is coded by a diallelic gene that expresses complete dominance.
A is the dominant allele ⇒ codes for normal phenotypea is the recessive allele ⇒ codes for an afectionAA ⇒ homozygous dominant individuals ⇒ normal
Aa ⇒ heterozygous indidivuals ⇒ normal
aa ⇒ homozygous recessive individuals ⇒ afected
Individuals with heterozygous genotype are
I-1 and I-2II-4 and II-5III-1
Option C is correct. I-1, I-2, II-4, II-5, III-1
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Complete question (image in the attached files)
If the pedigree is for an autosomal recessive characteristic, which individuals are definitely heterozygous?
a) I-1, I-2, II-2, II-4 and II-5
b) I-1, I-2, I-4, III-1
c) I-1, I-2, II-4, II-5, III-1
d) II-2, II-4, II-5, II-3
e) II-2, II-4, II-5, III-1
Epithelial cells that line the small intestine transport nutrients into the body. directional transport is associated with the epithelial tissue property of:_______-
The small intestine's epithelial cells carry nutrients into the body. The polarity of the epithelial tissue is related to directional transport.
What is the purpose of the intestine?Food digestion is its primary function. However, the gut serves a crucial function in fighting pathogens and maintaining the body's water balance in addition to producing a number of compounds that transmit messages to other regions of the body.
What organelles make up the intestine?Although the large intestine is one continuous tube, different processes take place in various portions of it. The colon, rectum, and anus are its three component sections. Partitioning is also possible for the colon. The six-inch-long entrance point is known as the cecum.
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A prokaryotic cell may possess each of the following cellular components except? ribosomes. flagella. a nucleus. a cell wall. a cell membrane.
Answer:
A.
Explanation:
Prokaryotic cell is a primitive cell and has limited functions. Thus, nucleus is the correct answer.
What are prokaryotes?Prokaryotes are the oldest inhabitants on the earth. They are single cell structures.
Prokaryotic cells (karyon = nucleus) are not well equipped with the cellular structures. They lack nucleus and the nuclear membrane. The other membrane bound organelles are also absent in prokaryotes.
Prokaryotes contain cilia or flagella as locomotory organs. Cytoskeleton is absent in prokaryotes.
Prokaryotes can thrive in the extreme conditions. They can respire anaerobically or can even withstand high temperatures.
Bacteria are considered as prokaryotes. Bacteria dominate the earth and are of various types based on their shape, function etc.
The other examples of prokaryotes include blue-green algae and mycoplasma.
Prokaryotes reproduces without the fusion of gametes. It forms spores or employs other methods of somatic reproduction.
Therefore, prokaryotes, though being the oldest are important for the ecosystem.
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Name the three distinct parts of the trapezius muscle in the cat. what nerve innervates this muscle in the human?
coracotrapezius, acromiotrapezius, and spinotrapezius the three distinct parts of the trapezius muscle in the cat
accessory nerve innervates this muscle in the human
Is the brachial plexus responsible for trapezius innervation?With the exception of the trapezius muscle, which is innervated by the spinal accessory nerve (CN XI), and a patch of skin close to the axilla, which is innervated by the intercostobrachial nerve, the whole upper limb is innervated by the brachial plexus.
The trapezius group and the deltoid group are the two main muscle groups of the cat's back and shoulder. The clavotrapezius inserts on the clavicle after emerging from the middorsal line of the neck and the rear of the head.
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Briefly explain the overall processes of photosynthesis and cellular respiration.
Wgat structures composed of specialized tissues designed to perform specific fuctions in plans and animals called:_________
Organs are the structures composed of specialized tissues designed to perform specific functions in plants and animals.
Organs are the structures made up of similar types of tissues, These work in coordination to perform a similar type of function. The heart, kidney, lungs, stomach are all examples of organs. These are differentiated structures that perform a specific task.
Tissues are the mass of cells that are of similar type. The differentiated cells combine together to form a tissue. These cells also work in coordination so that the tissue can perform a certain type of function. Tissues can be plant tissue or animal tissue depending upon whether they have plant cell or animal cell.
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Sugars pass from cell to cell in the leaf starting in the _______ of the mesophyll; they move through the _______ of other cells and finally pass into the _______ of the sieve tube element
Sugars pass from cell to cell in the leaf starting in the symplast of the mesophyll; they move through the symplast or apoplast of other cells and finally pass into the symplast of the sieve tube element
In symplastic pathway the sugar will move through the cytoplasm of the cell and pass on to the other cell through the plasmodesmata.
In apoplastic pathway the sugar will move through the cell wall and intercellular spaces and does not cross the cell membrane.
When the sugar are synthesized by the leaves first it will move through the symplast of the mesophyll cells. Then sugar will be travelling either through symplastic or apoplastic pathway in other cells and pass through the sieve tube elements in symplastic pathway
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Digestion must occur before the effects of alcohol can be felt. question 17 options:
a. true
b. false
It is false that digestion must occur before the effects of alcohol can be felt.
Alcohol is the beverage that contains ethanol and is generally produced by the fermentation of certain substances. Alcohol is a substance that does not require digestion inside the body. It is directly absorbed from the stomach into the blood. Hence, the effects of alcohol can be felt even without digestion.
Digestion is the process of breakdown of food inside the living organism's body. This is essential to release energy from the food, necessary to complete all the processes of the body. The digestion begins from the mouth itself.
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The condition known as _____ is usually caused by a lack of circulating oxygen in the red blood cells.
The condition known as cyanosis is generally caused by a lack of circulating oxygen in the red blood cells.
Cyanosis is a medical condition that is responsible for imparting a blue color to the skin as well as the mucous membranes. Peripheral cyanosis basically affects the hands as well as feet. It causes blue fingernails which indicate the low level or absence of oxygen in the red blood cells.
However, a cold temperature can also lead to blue fingernails in an individual but it should not be considered an abnormal condition. Blue fingernails due to cold temperatures is a usual reaction of the body so as to maintain the optimal temperature of internal organs.
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Liam notices that his phone battery is depleting faster than he remembers it should. he suspects that running certain apps on his phone is using up his phone battery.
Yes, this could be the possible reason for the draining up of phone's battery faster than normal.
What is battery?
One or more electrochemical cells with external connections for powering electrical equipment make up an electric battery, which is a source of electric power. A battery's positive terminal serves as the cathode and its negative terminal serves as the anode when it is supplying electricity.
Numerous apps will undoubtedly take up a lot of storage on your cellphone. Let's say you have 60–70 apps, and 18–25 of them require routine synchronization for updates and notifications.
Therefore, even after you have closed all of the apps, they continue to run in the background to notify the feeds. Additionally, background updates use both data and battery.
Therefore, more apps mean more instances of background updating and running. And as a result, it will use battery power proportionally.
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Who discoverd the concept of density?
Answer: Archimedes
Explanation:
