The feature is shared by archaea and bacteria is the Lack of a nucleus, but that not found in any member of eukarya because both archaea and bacteria are prokaryotes which are the type of organisms whose all cells lack a nucleus and other organelles.
Although, prokaryotes are single-cell organisms. The Archaea and bacteria both are single-cell organisms with no nucleus or organelles, and they reproduce asexually by fission or budding, and no species are known to produce spores. Both bacteria and archaea do not have interior membranes, but they have cell walls.
However, bacteria have three RNA molecules, whereas archaea have single RNA molecules. Both are different, but they share common features, i.e., Lack of nucleus and other organelles, because they come under the category of prokaryotes.
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The submucosa houses numerous ______ glands that provide a thick, lubricating mucus for the epithelium. multiple choice question.
The submucosa houses numerous mucous glands that provide thick, lubricating mucus for the epithelium.
What is a mucous gland?
Mucous gland, also known as muciparous glands, are found in several different parts of the body, and they typically stain lighter than serous glands during standard histological preparation.
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_____ are receptor cells contained in the retina and are useful in color perception, particularly in bright-light conditions.
Cones are receptor cells contained in the retina and are useful in color perception, particularly in bright-light conditions.
Retina :The inside of the eye's back is lined by a thin layer of tissue called the retina. It stands close to the optic nerve. The retina's job is to collect light that has been focused by the lens, transform it into neural signals, and deliver those signals to the brain for visual identification.
What is the retina of the eye?Light that enters your eye is converted by the retina into electrical signals that your optic nerve sends to your brain, which produce the images you see. It's a crucial component of your vision. The retina is the layer that is located at the very back of your eye. The retina contains rods and cones, two different types of receptor cells. These cells pick up light energy and absorb it for the nervous system to use.
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A thick waxy layer of what substance in the cell wall constitutes the major portion of the mycobacterial cell wall, separating it from other microorganisms?
Answer:
A thick waxy layer of in (Mycolic acids (lipoidal) the cell wall constitutes the major portion of the mycobacterial cell wall, separating it from other microorganisms.
Special long chains of fatty acids known as mycolic acids are present inside the lipid-rich cell walls of most mycobacteria, such as the tubercle bacillus (TB) mycobacterium. Enzymes responsible for the production of mycolic acids are crucial for survival and virulence, making them interesting targets for therapeutic development. Species of most of the mycobacteria genus, which includes the pathogens that cause leprosy and TB, depend on them to survive. The organisms develop slowly and are more immune to different chemicals and lysosomal constituents of phagocytes than that of most bacteria because mycolic acids as well as other glycolipids prevent the entrance of chemicals.
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A new drug is developed that inhibits formation of the flagellar filament by impairing production of the protein flagellin. is this going to be a good drug?
A new drug being developed that inhibits formation of the flagellar filament by impairing production of the protein flagellin can be useful for the pathogens that use flagella as the means of movement, but the drug would not be effective against those pathogens that do not use flagella.
Flagella is the motility structure present in various living organisms. It is a thin, slender, thread-like structure. There are a few structural differences in the prokaryotic and eukaryotic flagella. Eukaryotes can have various flagella in a cell, but prokaryotes generally have one.
The protein flagellin is present in the prokaryotic flagella. The structure of the protein is globular that arranges itself in a cylinder-like manner inside the flagella.
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The nerve cell stage in which potassium returns to the inside of the cell and sodium returns to the outside of the cell is called what?
The nerve cell stage in which potassium returns to the inside of the cell and sodium returns to the outside of the cell is called Refractory period.
Nerve cell is the functional unit of the nervous system. The action potential is transmitted through various phases.
Normally the nerve cell is in resting membrane potential of -70mV. During this phase all the gated channels are closed and only passive transport of ions take place.
As a action potential arrive all the voltage gated sodium open and influx of sodium occurs into the cells. It is called depolarization phase. It causes the membrane potential to pass to next part of the axon.
After that the potassium channels open and outflow of K+ ions occurs outside cell called repolarization.
The resting period after this is called refractory period.
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Adena boils tomato soup to kill all of the bacteria in it. She pours the hot soup into four groups of four small bowls just out of the dishwasher. The table shows what she does with each group of samples.
She is going to observe what grows on each sample. Which is the control sample in this experiment?
A. Group 3
B. Group 4
C. Group 1
D. Group 2
Nucleus, chromosome, nucleotide, genome, nucleosome, and base triplet from largest to smallest?
Nucleus > Genome > Chromosome > Gene > Base Triplets > Nucleotide.
Among the list, Nucleus is the largest segment, where as Nucleotide is the smallest segment which combines to form the base triplets, then a gene, then a chromosome, then a genome, and then the genome is present inside the nucleus.
Nucleus- A typically rounded region of most cells that is surrounded by two membranes, regulates the functions of the cell.
Genome- The total collection of DNA instructions present in a cell makes up the genome.
Chromosome- A component that can be found in a cell's nucleus. The proteins and DNA that make up a chromosome are arranged into genes.
Gene- The basic unit of heredity passed from parent to child.
Base Triplet- Any sequence of three bases in a nucleic acid that codes for an amino acid, or some other signal, in protein synthesis.
Nucleotide- A nucleotide is an organic molecule having the basic elements phosphate, pentose sugar, and nitrogenous base.
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Adenosine regulates synaptic activity through its actions on:___.
Adenosine regulates synaptic activity through its actions on presynaptic autoreceptors. Adenosine A1 receptors are expressed at a presynaptic locus withinside the BLA and that activation those receptors substantially inhibits glutamate launch possibility onto BLA pyramidal neurons.
The adenosine A2A receptor is a G-protein-coupled receptor that may be a most important goal of caffeine and vital for regulating myocardial oxygen consumption, coronary blood flow, and CNS neurotransmitters, hence a receptor of hobby for brand new drug development.
The adenosine A2A receptor is particularly gift with inside the brain, heart, lungs, and spleen. The adenosine A2B receptor has its most important distribution with inside the big gut and bladder, and the adenosine A3 receptor is gift inside the lungs, liver, brain, testis, and heart.
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List and briefly describe the three processes that lead to variation in offspring with the same parents.
Crossing over (in prophase I) Random assortment of chromosomes (in metaphase I) Random fusion of gametes from different parents are the three main sources of genetic variation arising from sexual reproduction.
What is genetic variation?Genetic variation is the variance in DNA sequences among members of a population. Germ cells, such as sperm and eggs, as well as somatic (all other) cells, are subject to variation. The only variation that develops in germ cells may be passed from one person to the next and ultimately have an impact on population dynamics and evolution. Major causes of variation include recombination and mutation.
Genetic variety first appeared as a result of mutations. A mutation is a type of DNA sequence change that is irreversible.Another important source of genetic diversity is recombination. Each of us is made up of a combination of our parents' genetic material.Therefore, variations arising from sexual reproduction are Crossing over (in prophase I) Random assortment of chromosomes (in metaphase I) Random fusion of gametes from different parents.
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The probability that a person with a positive screening test actually has the disease screened for is called:________
The probability that a person with a positive screening test actually has the disease screened for is called: Positive predictive value.
A screening test is a medical test or treatment carried out on members (subjects) of a designated asymptomatic population or population subgroup to determine the likelihood that their members will have a specific condition. It is also referred to as medical surveillance.
When a person does not exhibit any symptoms of a condition, a screening test is performed to look for probable health issues or diseases. The objective is early identification, lifestyle modifications, or surveillance to lower the risk of disease or to identify it early enough to receive the best possible care. Screening tests are used to identify a subset of the population who should undergo additional testing to ascertain the existence or absence of disease, even if they are not thought of as diagnostic.
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Please help! Im not sure if it’s primary or secondary because there was ground flora at year 0.
This seems like secondary succession because When a climax community or an intermediate community is affected by a disturbance, secondary succession occurs. The succession cycle is restarted, but not to the start because the soil and nutrients are still there.
The process of natural communities gradually replacing (or "succeeding") one another is known as ecological succession. For instance, if an old farm field is abandoned and left unattended for a long period of time, it eventually transforms into a forest as trees entirely occupy the land. Every plant community fosters the circumstances necessary for other plant communities to flourish. While later colonizers like shrubs and trees may provide cover and shade, early colonizers like grasses may enrich the soil with nutrients. When a "climax" community develops, succession temporarily halts; these communities maintain a state of relative balance until a disruption triggers the succession process to resume. Similarly, here we see that the land is abandoned and all the plant species community retained its survival and attained a stage of climax community. There is no new plant community appeared here. So, it's secondary succession.
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An amoeba is a unicellular organism that takes in food by endocytosis. The
cells store small food particles in food yacuoles until they can be digested.
Which cell organelles must fuse with the food vacuoles so that an amoeba
can digest its food?
A. Lysosomes
B. Ribosomes
C. Nuclei
D. Mitochondria
SUBMIT
The cell organelles must fuse with the food vacuoles so that an amoeba
can digest its food is option A. Lysosomes.
A lysosome is a membrane-certain cellular organelle that incorporates digestive enzymes. Lysosomes are worried about numerous mobile techniques. They spoil extra or mobile elements. they may be used to damage invading viruses and microorganisms.
Lysosomes are worried about diverse cell processes. They spoil extra or cellular elements. they may be used to destroy invading viruses and microorganisms. If the cellular is broken past restore, lysosomes can help it to self-destruct in a manner called programmed cell demise, or apoptosis.
An amoeba regularly called an amoeboid, is a type of cellular or unicellular organism which has the ability to modify its form, frequently with the aid of extending and retracting pseudopods. Amoebae do not shape an unmarried taxonomic group; as an alternative, they are found in each fundamental lineage of eukaryotic organisms.
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Located on the basilar membrane are(is) the ________, containing hair cell sensory receptors for the sense of hearing.
Located on the basilar membrane are(is) the organ of Corti containing hair cell sensory receptors for the sense of hearing.
The organ of Corti is also called basilar papilla which is a complex form of neuroepithelium composed of hair cells sensory receptors and supporting cells. In addition to these sensory and supporting cells, the organ of Corti also consists of a tectorial membrane. Endolymph which is a potassium-rich fluid surrounds the organ of Corti. The organs known as scala tympani and scala vestibule are present under and above the basilar papilla respectively.
The function of the organ of Corti is to generate electrical signals based on the sounds and transmit these signals to the brainstem through the passage of auditory nerves.
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Symport and antiport transport mechanisms are a form of ______ transport, and use ________.
Symport and antiport transport mechanisms are a form of Active Transport, and use secondary active transport mechanisms.
Symport- Symport is the type of transport in which two different molecules can move through a membrane in same direction by using a common carrier mechanism. The transporter is called a symporter which is an integral protein and it works in the cell membrane the molecules to transport across the membrane at the same time.
Antiport- A kind of transport called antiport allows for the opposing passage of two distinct molecules through a membrane. Additionally, it is a technique for linked transport, which involves the molecules moving in several directions. The antiporter, which is likewise a crucial membrane protein, is the transporter.
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Which type of urine specimen does not include the first and last urine in the sample? cna
Clean-catch specimen is the type of urine specimen that does not include the first and last urine in the sample.
A clean-catch urine specimen is a sample of pee. It is required if your doctor wishes to check your urine for bacteria that could be inflicting a urinary tract infection. A clean-catch specimen is a technique for obtaining urine from the skin that does not have a lot of bacteria in it.
To determine what sorts of bacteria (germs), if any, are present in your child's urine, a clean catch urine specimen is taken (pee). For your child to receive the required medical care, the test must be performed correctly. A sample of pee is a clean-catch urine specimen. When your doctor wishes to check your urine for germs that could be causing an infection in your urinary tract, it is necessary.
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An organization uses task forces to coordinate the activities of various departments. employees also work in teams to increase coordination. this organization most likely has a(n) ________ structure.
By structure, we mean the framework around which the group is organized, the underpinnings which keep the coalition functioning. It's the operating manual that tells members how the organization is put together and how it works.
It is important to deal with structure early in the organization's development. Structural development can occur in proportion to other work the organization is doing so that it does not crowd out that work.
While the need for structure is clear, the best structure for a particular coalition is harder to determine. The best structure for any organization will depend upon who its members are, what the setting is, and how far the organization has come in its development.
Inherent in any organizational structure also is a distribution of work. The distribution can be formal or informal, temporary or enduring, but every organization will have some type of division of labor.
Matrix Structure, in contrast, relies heavily on horizontal relationships.
In particular, these structures create cross-functional teams that each work on a different project.
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The invaginations of the mitochondria, which increase the surface area of the inner membrane, are called.
An acquired condition (in older children and adults) that is due to a deficiency in the secretion of thyroid hormones is called _______________.
An acquired condition (in older children and adults) that is due to a deficiency in the secretion of thyroid hormones is called Hypothyroidism. Thyroid hormone is the hormone that regulates your body's metabolism, or how your body converts the food you ingest into energy. Thyroid hormone is made up of the two primary hormones released by your thyroid, thyroxine (T4)
Triiodothyronine (T3). Thyroid hormone is well known for regulating metabolism, growth, and a variety of other body activities. The hypothalamic-pituitary-thyroid axis is a self-regulatory circuit composed of the thyroid gland, anterior pituitary gland, and hypothalamus. The thyroid, causing hyperthyroidism or hypothyroidism inflammation.
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The term used to describe the process in which foods are broken down into their component molecules is?
Answer:
Chemical digestion
Explanation:
This process is known as chemical digestion, where water and digestive enzymes are used to break down the molecules.
A protein is made of 100 amino acids. how many peptide bonds are in this protein?
Answer:
99
Explanation:
Comparisons of amino acid sequences can shed light on the evolutionary divergence of related species. If you were comparing two living species, would you expect all proteins to show the same degree of divergence?.
When all else is equal, the length of time since two organisms shared an ancestor determines the degree of divergence. But not all other things are created equal.
How are relatedness in organisms and categorization determined using DNA and amino acid sequences?Proteins and nucleic acids (DNA and RNA) are "information molecules" because they store a history of an organism's evolution.The amino acid sequence of a protein is determined by its DNA sequence, therefore two organisms that share a gene ought to have similar or even identical amino acid sequences. That's because recently in evolutionary history, closely related species are likely to have diverged from one another. Evolutionary relationships that might otherwise go undiscovered might be discovered by comparing the amino acid sequences in homologous proteins of comparable and varied animals.Learn more about the Evolution with the help of the given link:
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The urinary bladder, urethra, and ureters are collectively known as the urinary ___________.
The urinary bladder, urethra, and ureters are collectively known as the urinary tract
The urinary tract is the body's drainage the system for the removing of urine, which is made up of the wastes and the extra fluid. For the normal urination to be occur, all body parts in the urinary tract also need to work together, and in the correct order. The urinary tract that includes two kidneys, two ureters, bladder, and a urethra.
infections also occur in Urinary tract which are caused by the microorganisms — usually the bacteria — that enter the urethra and in the bladder, that causing the inflammation and the infection. Though a UTI most of commonly happens in the urethra and in the bladder, bacteria can also be travel up the ureters and that infect your kidneys also,
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Some biological anthropologists study:________
a. life on other planets.
b. the disappearance of languages.
c. extinct and living species of primates.
d. changes in marine life.
Option(c) extinct and living species of primates is the correct answer.
Some biological anthropologists research both extinct and current primatological species.
What is anthropology?Anthropology is the study of what makes people human.Anthropologists investigate all the various dimensions of the human experience from a holistic perspective.To learn how and what mattered to human groups use archaeology to access the past, whether it is hundreds or thousands of years ago.When did anthropology first start?Many academics believe that contemporary anthropology initially emerged during the Age of Enlightenment, an intellectual movement that focused on the power of reason to advance society and knowledge in 18th-century Europe.What makes anthropology significant?Anthropology offers the chance to investigate every facet of human life. It acts as a doorway to the unknown.By studying anthropology, we can get the answers to our questions about who we are, our past, present, and future.Anthropology aids in bridging cultural and geographic divides.
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Anything that can perform life processes by itself is a/an
Answer:
an organism
Explanation:
Anything that can perform life processes by itself is an organism. An organism made of a single cell is called a unicellular organism.
Approximately once in every _____ births, and infant is born with 45, 47, or even 48 or 49 chromosomes instead of the usual 46.
An newborn is born with 45, 47, 48, or even 49 chromosomes instead of the typical 46 chromosomes approximately once every 166 births.
What Does It Mean When a Baby Is Born With an Extra Chromosome?
Pregnancy is a vulnerable time when your unborn child may be exposed to a number of illnesses. However, several anatomical anomalies that are typically harmful and can lead to difficulties in babies may be present in infants with additional chromosomes.
A human cell contains 46 chromosomes, 23 of which are inherited from each parent. However, in some circumstances, either parent's chromosomes may have been added to or deleted from the growing fetus.
If you are unaware of this genetic phenomena and are interested in learning more, read this post to learn about the potential origins, illnesses, symptoms, and other details about extra chromosomes in newborns.
What Does It Mean When a Baby Is Born With an Extra Chromosome?
Genes are strung like beads along chromosomes, which are threadlike structures. The 47th chromosome in human cells is an additional chromosome. As a result, a child with an additional chromosome will have 23 pairs of chromosomes overall (one from the mother and two from the father or vice versa). Trisomy, which stands for "three bodies," is the term used to describe this disorder.
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A biologist studying chimpanzees in the wild knows that young chimps have light brown faces and older chimps have dark gray faces. Chimp 1435 has a light brown face, so the biologist reasons that it's a young chimp. Is this induction or deduction.
PLEASE HELP ASAP!!!
Consider the scenario.
Monarch butterflies are a migratory insect that can travel each year from the northeastern United States and Canada down to central Mexico to hibernate over winter from November to March. Scientists studying monarch butterflies noticed the number of wintering monarchs in Mexico was at its lowest in decades. By reading climate reports, scientists learned that United States and Canada had been experiencing abnormal drought and rainfall patterns. The scientists also learned that the droughts killed off many plants, including milkweed needed as food for monarch caterpillars.
Question
Which part of the scientific method is best illustrated by the scientists wondering why there are fewer monarch butterflies arriving in central Mexico?
A. collecting data from an experiment
B. communicating the results of a study
C. making an observation and asking a question
D. forming a new hypothesis
The scientific method that is involved in the study of why there are fewer monarch butterflies arriving in central Mexico is making an observation and asking a question. Option C
What is the scientific method?The scientific method is based on the fact that science is all about inquiry and the quest to obtain new information. There are several steps in the scientific method which includes; Observation, hypothesis, experiment, inference and conclusion.
Now, we can see that studies revealed that fewer monarch butterflies are arriving in central Mexico. We now want to find out which scientific method could be responsible for this.
We can then see that, the part of the scientific method that involves this is making an observation and asking a question.
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Genes govern the characteristics of an organism. each gene is a short segment of a(n) ______ molecule.
Genes govern the characteristics of an organism. each gene is a short segment of a(n) DNA molecule.
What are the brief segments of genes?Deoxyribonucleic acid (DNA) segments called genes are responsible for carrying out specified protein activities in one or more types of bodily cells. The structures called chromosomes found in cells house a person's genes.
Chromosomes are little, spaghetti-like structures that contain genes. Moreover, chromosomes are located inside of cells. There are many billions of cells in your body. All living organisms are made up of very tiny components called cells.
Genes are discrete chunks of the genome's DNA that contain protein-coding information. They provide directions for our unique features, such as eye and hair colours.
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The production of heat shock proteins within a trained skeletal muscle increases as a result of _____.
The production of heat shock proteins within a trained skeletal muscle increases as a result of exercise training.
What are heat shock proteins?Heat shock proteins such as chaperones are specific protein observed in excessive temperature condition which functions to fold proteins after the process of denaturation.
In conclusion, the production of heat shock proteins within a trained skeletal muscle increases as a result of exercise training.
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The plasma membrane must possess mechanisms for getting nutrients into the cell. nutrients such as oxygen and hydrogen are needed in relatively large amounts and are referred to as?
The plasma membrane must possess mechanisms for getting nutrients into the cell. Nutrients such as oxygen and hydrogen are needed in relatively large amounts and are referred to as macro elements.
Primary nutrients are the components that plants require in large quantities. These macro elements occur naturally in soil. However, they can be exhausted by plants that grow in the same location year after year. Testing soils for macro and microelements, as well as adding nutrients as needed, is essential for any farmer or home gardener
Plants require macro elements like hydrogen and oxygen for cell formation. Carbohydrate metabolism needs phosphorous and potassium for the development of reproductive structures. The proportion of these components is frequently provided on fertilizer product labels.
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