The virtually universal decline in near vision in middle adulthood is called presbyopia.
What is vision?Vision is the ability of the eyes to receive and send signals to the brain which then interprets and produces a picture of the object.
A common eye defect the occurs as people grow into adulthood is known as presbyopia.
In conclusion, presbyopia is an age-dependent eye defect.
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A population's emigration in one month totaled three individuals. During the same period, immigration was 17 individuals. Natality was 12, and mortality was 26 due to a parasite infection. What was the net effect on the population size
There was no net change in the given population. The size of the given population remains unchanged.
The explanation behind this is that if we consider the given values-
Emigration- 3
Immigration- 17
Natality- 12
Mortality-26
Therefore,
The overall effect on the population will be=
(Emigration+ Mortality) - (Immigration + Natality)
= (3+26) - (17 + 12)
=29-29
=0
Here the emigration means the number of people who have migrated from the population. Mortality refers to the number of deaths in a given population. Immigration is the migration of people into the population and natality is the overall number of births that have taken place in a population. Therefore there is no net gain or loss in the given population. This exerts no effect on the population keeping it unchanged.
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What is the natural treatment (fruit name) to remove the kidney stone?
Answer:
Pomegranate
Explanation:
Especially Pomegranate juice
hope it helps
Answer:
Try pomegranate juice.
Explanation:
Pomegranate is often used to treat conditions like ulcers and diarrhea, and it may also be beneficial in treating kidney stones because it decreases calcium oxalate and is also rich in antioxidants. Antioxidants help prevent and reduce oxidative stress, which is linked to kidney stone formation.
Hope it helps Raj! :)
All cells are surrounded by cell membranes, also called plasma membranes, that separate the cytoplasm from the:_________
All cells are surrounded by cell membranes, also called plasma membranes, that separates the cytoplasm from the outside environment.
The plasma membrane, a double layer of lipids that divides the inside of the cell from the outside environment, is present in both prokaryotic and eukaryotic cells.
Phospholipids, a type of specialized lipid, make up the majority of this double layer.
A phospholipid is composed up of two hydrophobic, water-fearing fatty acid tails and a hydrophilic, water-loving phosphate head.
The hydrophobic tails of phospholipids naturally arrange themselves in a double-layered arrangement with their hydrophilic heads facing outward.
Numerous biological membranes include this phospholipid bilayer, a two-layer structure that is energetically advantageous.
Hence, all cells are surrounded by cell membranes, also called plasma membranes, that separates the cytoplasm from the outside environment.
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What is the name of the process that plants use to remove carbon dioxide from the atomsphere
Answer:
photosynthesis
Explanation:
How are organisms in the domain Archaea different from those in the domain Eukarya?
A. Archaea are multicellular organisms.
B. Archaea have mitochondria inside their cells.
C. Archaea have no membranes around their organelles.
D. Archaea hold genetic information in DNA.
Answer:
C.) Archaea have no membranes around their organelles.
Explanation:
A.) is incorrect because Archaea are unicellular organisms. Eukarya, however, are multicellular.
B.) is incorrect because Archaea do not have mitochondria. Eukarya contain mitochondria.
C.) is correct because, unlike Eukarya, Archaea do not have any membranes around their organelles.
D.) is incorrect because both Eukarya and Archaea keep their genetic information in DNA.
Use homeostasis to explain why you might throw up if you eat food that has gone bad.
Food that has gone bad can cause food poisoning in which the body responds to maintain homeostasis through vomiting.
What is homeostasis?Homeostasis is defined as the ability of human beings to maintain a constant internal environment which is meant for their survival.
When an individual consumes spoilt food the body responds by showing the following symptoms such as:
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Cellular responses to hormones that initiate second-messenger systems include ________.
Cellular responses to hormones that initiate second-messenger systems include hormone binding to intracellular receptors.
When a cell is exposed to extracellular signaling molecules, or first messengers, second messengers, or intracellular signaling molecules, are released by the cell. Second messengers cause physiological alterations at the cellular level, including depolarization, migration, apoptosis, differentiation, and proliferation.Secondary messenger systems attach hormones to receptors, which sets off a series of events that result in actions. Secondary messengers are chemicals that transmit information from cell surface receptors to targets located in the cytoplasm or nucleus of the cell.learn more about second-messenger here: https://brainly.com/question/13910720
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When placed in a hypotonic solution, water moves into the cell through an aquaporin channel. this is an example of?
Water can move into the cell through simple diffusion and through osmosis when the concentration of water outside the cell is lower than inside through aquaporins.
Aquaporins, also known as water channels, are channel proteins that produce pores in the membrane of living cells, primarily aiding the passage of water between cells and known as plumbing systems of the cell. They are part of a wider family of important intrinsic proteins. Aquaporins are proteins that allow water to enter and exit cells more quickly than through the phospholipid bilayer in a range of bacteria, fungal, animal, and plant cell membranes.
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A scientific law is a statement of fact that describes an action or set of actions. Laws are accepted as fact because they are always observed to be true. Examples of scientific laws are Newton's laws of motion. These laws describe the motion of moving objects. a) Give an example of a scientific law you have studied or heard of. b) How do you know that this is a law in scientific terms? Read through the definition of law in the question above.
Answer:
A and B
Explanation:
<3
Imagine you are standing in a meadow of sunflowers. Compare your view of sunflowers from the perspective of typological thinking and from that of population thinking.
Typological thinking is that classifies things only in terms of the types to which they belong, and ignore variations among individuals.
Ernst coined the term 'typo-logical thinking' for the collection of misguided metaphysical ideas and evolutionary. The typo-logical thinking is real and the variation an illusion, while for popularization the type is an abstraction and variation is real only.
The idealized species into an individual that represented character of that differentiated from all other individuals. Population thinking rejects idea of each species in natural type and instead sees every species as a varying population of interbreeding individuals.
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The superior region of the right ventricle narrows before it leads into the ______. Multiple choice question.
Pulmonary trunk
The right ventricle pumps deoxygenated blood into the pulmonary trunk, which leads toward the lungs and bifurcates into the left and right pulmonary arteries.
What is Pulmonary trunk ?The pulmonary trunk is a major vessel of the human heart that originates from the right ventricle. It branches into the right and left pulmonary arteries, which lead to the lungs.
It divides into the left and right pulmonary arteries, which carry blood with relatively low oxygen content and high carbon dioxide content into the lungs.The pulmonary trunk is approximately 50 mm long and 30 mm wide (most authors use 29 mm in males and 27 mm in females (axial width) as the cut-offs of normal 1,5).Learn more about Pulmonary trunk here:
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List the functions of water in the body. Why is it important to maintain good fluid balance inside and outside of the cells
Answer:
According to scientists , water occupies up to 60 % of the human body .
The importance of water in the human body are ;
Transport Formation of bodily fluids i.e. saliva Digestion Regulates body temperatures Circulation of nutrientsExplanation:
The reason why it is important to maintain good fluid balance within and without he cells is because , It can dissolve various elements to make then easily absorbed into other system .There are many fluids which rely on water for volume e.g. blood which is the main component of the circulatory systems , water also regulates the temperature and heart pressure ,
Through electrolysis , fluid balance in the cells can be achieved and it also helps to generate nerve impulses .
Bioaccumulation refers to toxic substances at levels above what would be normally expected.
a. true
b. false
According to the research, the statement is true, Bioaccumulation refers to toxic substances at levels above what would be normally expected.
What is Bioaccumulation?It is a process that takes place in living beings and that implies that these organisms accumulate chemical substances until they reach a higher concentration than those existing in the environment that can be generated through biotic or abiotic resources.
That is, it is the accumulation of a toxic substance that persists over time at levels above what would be normally expected, acquired by the organism through the ingestion of other organisms or through contact with the environment.
Therefore, we can conclude that according to the research, Bioaccumulation refers to toxic substances at levels above what would be normally expected.
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As a social worker employed in a mental health center, cecilia is most likely to consult the ___, a tool for assessing behavioral disorders.
As a social worker employed in a mental health center, Cecilia is most likely to consult the DSM-IV-TR, a tool for assessing behavioral disorders.
DSM-IV-TR provides diagnostic criterion sets to help guide a clinician toward a correct diagnosis and an additional section devoted to differential diagnosis when persons meet diagnostic criteria for more than one disorder.
The intention of this information is to help the clinician determine which particular mental disorder is present, the identification of which would hopefully indicate the presence of a specific pathology and suggest a specific treatment.
It is evident, however, that DSM-IV-TR routinely fails in this goal, despite the best efforts of the leading clinicians and researchers who have authored the manual.
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Describe the structure of a neuron. Include the cell body, dendrites, and axon in your description. How does the structure of a neuron help it carry out its function efficiently?
Answer: A neuron has three main parts: dendrites, an axon, and a cell body or soma , which can be represented as the branches, roots and trunk of a tree, respectively. A dendrite (tree branch) is where a neuron receives input from other cells. Dendrites branch as they move towards their tips, just like tree branches do, and they even have leaf-like structures on them called spines.
The axon (tree roots) is the output structure of the neuron; when a neuron wants to talk to another neuron, it sends an electrical message called an action potential throughout the entire axon.
The features of neurons help them to carry out their function efficiently:
they have a long fibre (axon) so they can carry messages up and down the body over long distances
in a stimulated neuron, an electrical nerve impulse passes along the axon
the axon is insulated by a fatty (myelin) sheath - the fatty sheath increases the speed of the nerve impulses along the neuron
at each end of the neuron are tiny branches (dendrons), which branch even further into dendrites - the dendrites receive incoming nerve impulses from other neurons
Explanation:
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What are the three reasons why the cpi is hard to measure accurately?
The three main reasons why the CPI is hard to measure accurately include the following below:
New products to buyNew ways for consumers to buy them.Inflation and taxes.What is CPI?
This is referred to as consumer price index and helps to measure the change in consumer prices from a weighted average market basket of consumer goods and services.It is also used in determining the prices as a result of different factors such as inflation being taken into consideration.
CPI is however difficult to measure accurately as a result of the constant new product formation and the different ways and manner in which the consumers use the product at that point in time.
The aforementioned are therefore the reasons why they were chosen as the most appropriate choice.
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2. Which characteristic do most cartilaginous fish have?
1 ; swim bladder
2:spiracles
3:external fertilization
Answer:
Option 2: Spiracles.
Explanation:
Cartilaginous fish (also called Chrondricytes) have a skeleton of cartilage, instead of bone. There are two subclasses - Elasmobranchii and Holocephali. Sharks, rays, skates and sawfish are elasmobranchs while chimeras are holocephali.
Here’s a list of features of cartilaginous fish in comparison to bony fish:
1. Cartilage skeleton: unlike bony fish that have a skeleton made of bones (just like other terrestrial vertebrates), the skeleton of cartilaginous fish is made of cartilage.
2. Spiracles: this is a modified gill of sorts, it aids with respiration and is found slightly behind each eye. It leads directly to the mouth. Most cartilaginous fish possess this organ (exceptions are present, such as hammerhead sharks). Bony fish do not possess spiracles.
3. Ampullae of Lorenzini: absent in bony fish, these organs are electroreceptors that form a network of pores filled with a form of jelly that can transmit electrical signals. It allows the cartilaginous fish to sense electric fields in the water (such as the movements of a fish struggling), magnetic fields and temperature. Some bony fish such as sturgeon and lungfish may possess these organs, however research is still ongoing.
4. Claspers: male cartilaginous fish possess an organ known as claspers at their pelvic fin. This is used during reproduction to transfer the sperm into the female for fertilisation. As such, internal fertilisation occurs in cartilagonous fish. Bony fish do not possess this organ, and external fertilisation occurs.
There are many other characteristics that differentiate cartilaginous fish from bony fish. They're an extremely fascinating group of animals that unfortunately, is decreasing in numbers. Very little is known about many of these animals, so it is important that we do our best to conserve the sharks, rays, sawfish and chimeras before we lose them forever.
Which combination of alleles are always involved in the inheritance of a sex-linked trait?
heterozygous alleles
homozygous alleles
alleles that are carried on X and Y chromosomes
alleles that are carried on all chromosomes except the X and Y chromosomes
Sex-linked genes are transmitted with the sex chromosomes. The combination of alleles that are involved in the inheritance of a sex-linked trait are alleles carried on X and Y chromosomes. Option C)
What is a sex-linked gene?
Genes are physically located and arranged in the chromosomes. Each chromosome contains several genes that vary in length and code for different traits. So, all chromosomes are different, except for the homologous ones.
In mammals, sex is determined by a pair of sex chromosomes, X and Y.
Females are represented by the combination of two X chromosomes, XXMales are represented by the combination of an X chromosome with a Y chromosome, XY.When talking about sex-linked genes, we refer to genes located in one of the sex chromosomes. In general, genes are linked to the X chromosome.
Being linked to one of the sex chromosomes means that these genes, and their corresponding alleles, will only be inherited together with the chromosome.
In the case of X-linked genes, a male that inherits the X chromosome from a heterozygous female can express either the dominant or the recessive trait, depending on which allele it got from the mother.
According to this framework, the correct answer is C) alleles that are carried on X and Y chromosomes.
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Answer:
alleles that are carried on X and Y chromosomes
Explanation:
The cell organelle that digests molecules, old organelles, and foreign substances is the ____
The cell organelle that digests molecules, old organelles, and foreign substances is the Lysosome. The main constituent of lysosomes is hydrolase enzymes. The hydrolase enzymes of the lysosome, a membrane-bound vesicle, break down aged organelles and proteins into smaller molecules like amino acids.
Lysosomal hydrolytic enzymes are also helpful in destroying invading pathogens. Upon any bacterial/fungal/viral infection, the cell engulfs the pathogenic particle in a double membrane-bound vesicle called a phagosome, via phagocytosis. Phagosomes get fused with lysosome and hydrolytic enzymes help in the clearance of the pathogen.
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A multicellular organism that has a mouth and lives in an animal host is a(n) Group of answer choices Alga. Bacterium. Fungus. Helminth. Virus.
A multicellular organism with a mouth that lives in an animal host will be a Helminth. The correct option is the third option.
What are Helminthes?They are are group of invertebrate animals known as flatworms.
They are characterized by elongated, roud, or flat bodies. They live mostly as parasites of animals.
They usually have attachment organs that enable them to attach themselves to hosts.
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Define transpiration.
NOTE: The answer needs to be atleast 3 lines long not less than that
Answer:
Transpiration is a type of evaporation. This type of evaporation only happens with plants. The water leaving the plant is excess water that the plant doesn't need.
Explanation:
Choose from three types of scientific workers (for example, biologists, chemists, and geographers) that you think could help solve the problems associated with this species, and explain how they could apply their knowledge.
The issues related to species could be resolved with the help of biologists.
Chemists, geographers, and biologists are the three categories of scientific workers.Chemists are people who study chemistry and do research on chemical compounds. Since they are primarily concerned with chemical reactions, they are unable to address the issue of species.Since geographers are primarily physical scientists who also study geography and the distribution of land, features, and people on earth, they are unable to address the issue of species.A biologist is someone who studies biology, which is primarily based on humans. They research all types of living things and life in general in order to be able to address issues with species.Laboratory studies with animals, plants, microbes, or biomolecules are frequently carried out by biologists. A tiny portion of biological research does, however, take place outside of the lab and may entail natural observation as opposed to experimental.learn more about biologist here: https://brainly.com/question/17274244
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Transradial arterial access for coronary and peripheral procedures: executive summary by the Transradial Committee of the SCAI.
The Society for Coronary angiography and Interventions recently established a Transradial Committee with the aim of examining the utility, utilization, and training considerations related to transradial access for percutaneous coronary and peripheral procedures in response to growing interest in the United States. The committee has put together a thorough review of this topic with worldwide collaboration, which is provided below.
what is Transradial access?
Transradial access (TRA) is the preferred method for coronary angiography and percutaneous coronary intervention (PCI) because it has a lower risk of bleeding and vascular complications than transfemoral access (TFA), improves patient satisfaction, and has a lower mortality rate in patients presenting with ST-segment abnormalities.
summary by the transradial committee.
It is becoming more and more common in all types of arterial vascular treatments to use transradial access (TRA) through the left radial artery as an alternative to the more conventional transfemoral approach. When compared to conventional femoral access while preserving efficacy, TRA has been shown to offer various advantages (such as fewer complication rates, lower cost, and enhanced patient comfort during and after the surgery). TRA was first researched in the field of cardiology. This article gives a thorough overview of the technical components of radial access while combining more recent data to explain patient preference for TRA as well as the ways that TRA can enhance peri-procedure efficiency and compensation. Additionally, it discusses possible side effects such radial artery spasm, challenging anatomical variations, and radial artery blockage.
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The visual examination of the fundus of the eye with an ophthalmoscope is known as?
Answer:
Ophthalmoscopy, also called funduscopy.
Ophthalmology is the virtual examination of the funds of the eye. It is the back part of an eye which is includes the optic , retina , chorod, and blood vessels.
Funduscopic examination is regular doctor examination of eyes not just ophthalmologist.It is exclusive inspection. It is exam your doctor, optometrist , uses to look into back of your eye. An otoscope is used to examine the ear canal and tympanic membrane.
The pupil is through which eyes interior will be viewed. pupil wide opening is simple and effective way to better see the structure.dilation of pupil with medicated eye drops before funduscopy.
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What is sexual and asexual reproduction
Answer: asexual reproduction is when an organism can reproduce without the need of another unlike sexual reproduction
Explanation: sexual reproduction happens when two organisms reproduce together giving the offspring 50% of each organisms DNA--
asexual reproductions is more like the organism replicating itself because the offspring has 100% of its DNA making it the exact same
In sexual reproduction an organism that reproduces sexually incorporates the genetic material from both of its parents and is genetically distinct. Asexual reproduction creates genetically identical kids by having one parent replicate itself.
what is reproduction?The biological process of reproduction is how new individual organisms, or children, are created from their parents.
Reproduction Methods:
Animals can reproduce in two different ways;
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Antibiotic resistance is becoming more common in disease-causing bacteria because?
Antibiotic resistance occurs naturally and it is use as medicines as well as misuse of antibiotics in humans ans animals is accelerating the process.
Nowadays infections are growing such as gonorrhea, tuberculosis, pneumonia, etc all are becoming hard to treat or fight with them because of less effective antibiotics.Inappropriate uses of antibiotics spread antibiotic resistance bacteria.
Excessive use of antibiotics or use for wrong reasons can cause bacteria to became resistant and multiply rapidly in human body or environment. When bacteria develop the ability to survive exposure of antibiotics that are design to kill them or stop their growth. Young children, cancer patient and over age people at great risk.
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how do you identify a interphase in mitosis
Answer:
Interphase is generally characterized by not being able to see the individual chromosomes, only the chromatin.
Explanation:
Chromosomes form from chromatin when the cell enters mitosis so that the genetic code can split, so if you see it, it's in mitosis, but if not, it's in interphase.
Identify the true and false statements about gender and labor force participation.
The true and false statements about gender and labor force participation as follows:
True: "A higher percentage of men than women participate in the labor force."True: "Marriage seems to have opposite effects on women’s and men’s participation rates."False: "Occupational sex segregation, or the domination of certain professions by a single gender, has dramatically fallen in recent years."True: "Since 1975, the percent of mothers in the labor force has been on the rise."What is Gender Empowerment Measure?Gender Empowerment Measure (GEM) can be defined as an index that is designed and developed to measure the level of inequalities between opportunities that are available to both men and women living in a country.
Based on information provided by the Gender Empowerment Measure (GEM), we can infer and logically deduce the true and false statements about gender and labor force participation as follows:
True: "A higher percentage of men than women participate in the labor force."True: "Marriage seems to have opposite effects on women’s and men’s participation rates."False: "Occupational sex segregation, or the domination of certain professions by a single gender, has dramatically fallen in recent years."True: "Since 1975, the percent of mothers in the labor force has been on the rise."Read more on Gender Empowerment Measure here: brainly.com/question/22907606
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Complete Question:
Identify the true and false statements about gender and labor force participation.
1. A higher percentage of men than women participate in the labor force.
2. Marriage seems to have opposite effects on women’s and men’s participation rates.
3. Occupational sex segregation, or the domination of certain professions by a single gender, has dramatically fallen in recent years.
4. Since 1975, the percent of mothers in the labor force has been on the rise.
Which muscle is highlighted? brachioradialis extensor carpi radialis brevis extensor carpi radialis longus pronator teres
The muscle which is highlighted in the diagram provided in the question is referred to as brachioradialis and is therefore denoted as option A in this context.
What is a Muscle?These are characterized by the presence of soft tissues which contract in other to exert a force. It is also involved in performing various types of activities for our daily living and survival such as eating, ,lifting of objects etc.
The brachioradialis is a muscle which is present in the forearm and helps in its flexion movement at the elbow region. The origin of this type of muscle is at the lateral supracondylar ridge of the humerus and performs other functions such as pronation and supination.
This is therefore the reason why brachioradialis was chosen as the most appropriate choice.
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Neurotransmitters are located in
Othe
A. synaptic sacs
B. Golgi apparatus
C. cytoplasm
I believe it is the synaptic sacs!
"When a nerve impulse arrives at the presynaptic terminal of one neuron, neurotransmitter-filled vesicles migrate through the cytoplasm and fuse with the presynaptic terminal membrane. The neurotransmitter molecules are then released through the presynaptic membrane and into the synaptic cleft."