What progressive neurological disease afflicts older people with memory loss?
Answers
Alzheimer's disease is a progressive neurological disorder that commonly afflicts older individuals, leading to memory loss and cognitive decline.
As far as dementia goes, Alzheimer's disease is the most prevalent. The disease is gradual, starting with mild memory loss and potentially progressing to the loss of communication and environmental awareness. The brain regions that are responsible for thought, memory, and language are affected by Alzheimer's disease. It can significantly impair a person's capacity to carry out daily tasks. Alzheimer's disease does not occur naturally as people age. One of the initial symptoms of Alzheimer's disease and other dementias is frequent memory loss. An individual with Alzheimer's disease symptoms might also have one or more of the following issues in addition to memory issues: Memory loss that interferes with daily life, such as asking the same questions or becoming lost in a familiar setting, difficulty managing finances, and paying bills, a challenge finishing routine duties at work, at home, or in leisure and reduced or bad judgment.
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Related Questions
What is an alternative stable state? the first species to grow after a severe disturbance after a disturbance, a stable community forms that is the same as the previous community after a disturbance, a stable community forms that is different from the previous community an evolutionary concept that describes how biomes can change over time due to variable weather conditions
Answers
Answer:
In biomes the species community undergoes certain changes in evolution and growth in order to reach the climax.
Explanation:
An alternative stable state is one which suggests the discrete states are sperate by an ecological threshold and in opposition to the ecosystem that is changing and thereby stating that the ecosystem can exist in a variety of alternative state. The first species after origin grows develops and then declines. This community of species may be disturbed in middle such as by a fire or flood and forms the secondary community which is more diamine and resistant. The changes are known as seres in biomes.Molecules composed of a small oligosaccharide covalently linked to a phospholipid are called:__________
Answers
Molecules composed of a small oligosaccharide covalently linked to a phospholipid are called glycolipids.
What are glycolipids?Glycolipids are lipids containing a glycosidic (covalent) link connecting them to a carbohydrate. Their job is to keep the cell membrane stable and make it easier for cells to recognize one another, which is essential for the immune response and for the connections that allow cells to join together to form tissues.Glycolipids are crucial parts of biological membranes that serve a wide range of purposes. They might function as receptors, be necessary for cell aggregation and dissociation, be in charge of particular cellular interaction, and be involved in signal transduction. As a result, the glycosphingolipid is hydrolyzed to produce sugar, fatty acids, and sphingosine (or dihydrospingosine).
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Silk is a natural protcin fibre material of high tensile strength. There are two kinds of silk, produced by spiders or silkworms, which differ in their characteristics. Average diameter of fibres prod
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The average diameter of silk fibers produced by spiders is around 1.0 to 4.0 micrometers, while the average diameter of silk fibers produced by silkworms is around 10.0 to 25.0 micrometers.
Spiders produce silk fibers that are generally thinner and more lightweight compared to silkworm silk fibers. Spider silk is known for its exceptional tensile strength, elasticity, and toughness. The diameter of spider silk can vary depending on the spider species and the specific type of silk produced (e.g., dragline silk, capture silk). On the other hand, silkworm silk, also known as bombyx silk, is produced by the domesticated silkworm species Bombyx mori. Silkworm silk fibers are relatively thicker compared to spider silk but still possess high tensile strength. Silkworm silk is primarily used for the production of silk fabric and is renowned for its lustrous appearance and smooth texture.
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When an individual stops working out, muscles slowly __________. a. strengthen b. turn into fat c. lose strength d. stretch out please select the best answer from the choices provided. a b c d
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When an individual stops working out, muscles slowly lose strength.
Why does human muscles lose strength after a workout?A person will lose strength and muscle if they stop lifting weights for an extended period of time. Gains in muscular growth, power, and endurance will plateau over time. He or she will, however, regain the muscles more quickly if they start exercising again than they did when they first gained them. During workouts your muscles become pumped but never bigger and few hours after you stop working out blood stars flowing regularly to your other body parts and so your muscles appear as if they shrunk.To learn more about muscular growth refer https://brainly.com/question/19879133
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Determine the mRNA and amino acid sequence for the below DNA sequence.
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i dont understand this help please
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The skin is superior to the liver. The greatest solid organ in the human body seems to be the liver. It's located in the front upper abdomen, below the rib cage.
What are the skin's three principal layers?The epidermal, dermis, & hypodermis are indeed the three constituent layers, and each has a distinctive architecture and function. The complicated network that makes up the natural skin structure acts also as body's first line of defense against viruses, UV rays, chemicals, and psychological harm.
What purpose does the skin serve?provides a barrier of defense against harmful substances, mechanical, thermal, and bodily injury. prevents moisture loss minimizes the negative effects from UV radiation. The skin, which covers the body's entire exterior surface and acts a first-order barrier against the outside, is its primary and main defensive organ.
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A dominant allele is often covered up or masked by the recessive allele. True or false?
Answers
Answer:
Explanation:In a heterozygote, the allele which masks the other is referred to as dominant, while the allele that is masked is referred to as recessive.
Answer:
If the alleles are different, the dominant allele will be expressed, while the effect of the other allele, called recessive, is masked. In the case of a recessive genetic disorder, an individual must inherit two copies of the mutated allele in order for the disease to be present
If the forces are unbalanced, this means...
the net force is greater than zero
the net force is less than zero
the net force is equal to zero
Answers
Answer:
the net force is greater than zero.
Explanation:
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I NEED HELP ASAP! Which of the following is true of variation?
Select one:
a.
It is necessary for natural selection.
b.
It exists in almost all populations.
c.
It is caused by mutations and sexual reproduction.
d.
All of the choices are correct.
Answers
Answer:
all of them are correct
Variations are essential for natural selection to occur. It exists in almost all populations. It is caused by mutations and erotic reproduction. Hence, all of the choices are correct.
What do you mean by Mutation?A Mutation may be defined as the sudden, stable, and inheritable changes in the genetic material of an organism.
Variations provide the favorable traits that induce natural selection. Variations are caused by mutations, gene flow, and erotic reproduction. It exists in all life forms present on the earth.
Sometimes, variations decide the relative fitness of an organism and thus natural selection occurred.
Therefore, the correct option for this question is D.
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Which methods of transport across the cell surface membrane would be inhibited by antimycin? 1 active transport. 2 facilitated diffusion. 3 endocytosis
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Antimycin inhibits the process of active transport across the cell surface membrane. The correct answer is 1.
Active transport is a method of transporting substances across the cell surface membrane against their concentration gradient, meaning that they are moved from an area of lower concentration to an area of higher concentration.
This process requires energy in the form of ATP, which is produced by the electron transport chain in the mitochondria. Antimycin is a chemical that inhibits the electron transport chain, preventing the production of ATP and therefore inhibiting active transport across the cell surface membrane.
Facilitated diffusion and endocytosis, on the other hand, are not affected by antimycin. Facilitated diffusion is a passive process that does not require energy, and endocytosis is a process that involves the formation of vesicles, which is not directly dependent on the electron transport chain.
Therefore, the correct answer is 1. Active transport.
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how would you determine the zone of inhibition if the zone of two antibiotic discs overlapped each other?
Answers
The zone of inhibition is the clear area around the antibiotic disc where the bacteria growth is inhibited.
If the zones of two antibiotic discs overlap, it can be challenging to determine the exact size of the zone of inhibition. To determine the zone of inhibition when two discs overlap, there are a few different methods that can be used. One method is to measure the diameter of each disc separately and then measure the diameter of the overlapping zone.
The diameter of the overlapping zone can be subtracted from the sum of the diameter of each disc to obtain the approximate zone of inhibition. Another method is to compare the zone of inhibition of the overlapping discs to the zone of inhibition of a single disc of each antibiotic.
If the zone of inhibition of the overlapping discs is larger than that of a single disc, it can be assumed that the overlap has increased the effectiveness of the antibiotics. However, if the zone of inhibition is smaller than that of a single disc, it can be assumed that the overlap has reduced the effectiveness of the antibiotics.
Overall, determining the zone of inhibition when two antibiotic discs overlap can be challenging. It is important to use multiple methods and to consider the potential effects of the overlap on the effectiveness of the antibiotics.
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How do high temperatures
affect enzyme activity?
Answers
Answer:
Increased temperatures can cause enzymes to work more quickly, if the temperature gets too high the enzyme stops working.
Explanation:
If the temperature around an enzyme gets too high, the enzyme loses its shape, which is known as denaturation, and ceases to work.
what experimental evidence provided the initial insights into the compositions of codons encoding specific amino acids? select the three correct answers. what experimental evidence provided the initial insights into the compositions of codons encoding specific amino acids?select the three correct answers. electron microscopy studies of resulting polypeptides studies on homopolymer rna s introduced into an in vitro system studies on heteropolymer rna introduced into an in vivo system studies on homopolymer rna s introduced into an in vivo system assays of the relative amino acid composition of resulting polypeptides studies on heteropolymer rna s introduced into an in vitro system
Answers
Studies on homopolymer RNAs, heteropolymer RNAs, and assays of the relative amino acid composition of resulting polypeptides are the experimental evidence in its terms: Option B, C, and E.
Studies on homopolymer RNAs introduced into an in vitro system, studies on heteropolymer RNAs introduced into an in vivo system, and assays of the relative amino acid composition of resulting polypeptides are the experimental evidence that first revealed the compositions of codons encoding specific amino acids.
They created proteins with multiple types of amino acids using synthetic RNAs that randomly combined two bases at various ratios. From these proteins, they were able to determine that the genetic code is triplet and to restrict the codon options for further amino acids. By 1966, Nirenberg's team had successfully deciphered every codon for an amino acid.
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Correct question is:
What experimental evidence provided the initial insights into the compositions of codons encoding specific amino acids? select the three correct answers.
electron microscopy studies of resulting polypeptides
studies on homopolymer rna s introduced into an in vitro system
studies on heteropolymer rna introduced into an in vivo system
studies on homopolymer rna s introduced into an in vivo system
assays of the relative amino acid composition of resulting polypeptides
studies on heteropolymer rna s introduced into an in vitro system
on a phylogenetic tree, a grade is a: group of answer choices a slice through a phylogenetic tree that shows organisms of the same evolutionary complexity a slice through a phylogenetic tree that shows all the organisms that lived at the same point in time. all the branches off a stem of a phylogenetic tree all the organisms in a single clade
Answers
In a phylogenetic tree, a grade refers to a group of organisms that share a similar level of evolutionary complexity.
A grade in a phylogenetic tree is a term used to describe a grouping of organisms based on their evolutionary complexity or level of development. It represents a horizontal slice through the tree, encompassing organisms that have reached a particular stage of evolutionary advancement.
Grades are determined by specific characteristics or traits shared by the organisms within the group. These traits may include anatomical features, physiological adaptations, or behavioral patterns. Unlike a clade, which represents a group of organisms sharing a common ancestor and all of its descendants, a grade does not necessarily include all descendants of a common ancestor.
Instead, it focuses on organisms that have independently evolved similar characteristics or adaptations, regardless of their ancestral relationships. Grades provide a way to categorize organisms based on their relative level of complexity and track their evolutionary progress through time.
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________ thousands of tiny projections that add even more surface area to villi
Answers
Answer:
Each villus, in turn, has thousands of even smaller projections called microvilli (singular: microvillus).
Explanation:
The villi contain capillaries, which are tiny blood vessels. Nutrients are absorbed into these capillaries across the surfaces of the villi and microvilli. Because there are millions of these tiny projections, they greatly increase the surface area for absorption.
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What is an advantage of making plant-based products, such as cotton, instead of making petroleum-based products, such as plastics?
Producing plant-based products requires more energy.
Factories that make plant-based products generate more waste.
Plants that are used to make the product can be replaced.
All plant-based products cost more than petroleum-based products.
Answers
Answer: Plants that are used to make the product can be replaced.
Answer:
Plants that are used to make the product can be replaced.
Renewable
Explanation:
Plant-based alternatives offer a solution. Unlike materials derived from fossil fuels, feedstocks from plant-based materials remove carbon dioxide (CO2) from the atmosphere during their growing phase
A defensive soccer player is having trouble reacting quickly to the movements of the opposing player. How can the soccer player adjust her base of support to improve her reaction time?
Answers
Answer:
decrease the base of support and centralize her line of gravity
Explanation:
A wider base of support leads to an unsteady gait. The base of support is the contact between the feet of the soccer player and the surface (the field) supporting him. The root cause of the player's inability to react quickly to the movements of the opposing player is a lack of balance.
Balance is the ability of an individual to sustain the line of gravity which runs the center of gravity. For the player to regain his balance, she needs to decrease the base of support and centralize her line of gravity, so as to maintain balance.
Which of the following correctly Lists the connective tissues surrounding the kidneys STARTING WITH THE MOST SUPERFICIAL LAYER?
Entry field with incorrect answer
a. renal capsule, adipose capsule, renal fascia
b. adipose capsule, renal fascia, renal capsule
c. renal fascia, renal capsule, adipose capsule
d. renal fascia, adipose capsule, renal capsule
e. renal capsule, renal fascia, adipose capsule
Answers
The connective tissues surrounding the kidneys starting with the most superficial layer is:renal fascia, adipose capsule, renal capsule
The renal fascia is a dense layer of fibrous connective tissue that surrounds the kidney and helps to anchor it to surrounding structures. The adipose capsule is a fatty layer that provides cushioning and insulation to the kidney. The renal capsule is a smooth, fibrous membrane that covers the surface of the kidney and helps to maintain its shape.
1. Renal fascia: This is the outermost layer, made of connective tissue, that anchors the kidney and surrounding adipose tissue to the abdominal wall.
2. Adipose capsule: The middle layer, which consists of fat and provides cushioning and protection for the kidneys.
3. Renal capsule: The innermost layer, a thin connective tissue that covers and protects the kidney's surface.
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What climatic conditions are required to trigger an amphibian migration?.
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Hope this helped :)
RM.03H]Oil is an important source of energy which sustains modern human lifestyle. Roads, pipelines, mines and other structures must be built when drilling for oil. Which of these is the most likely effect of large scale infrastructural development associated with oil drilling in a location?
lack of oxygen gas
long periods of drought
disruption of animal habitats
decrease in atmospheric temperature
Answers
Answer: C
Explanation: Disruption of animal habitats
The outer shell of a virus is called its capsid. The capsid is primarily composed of –
A proteins B carbohydrates C fatty acids D mRNA
Answers
what animals are herbivore
Answers
Answer:
Explanation:
Turtle?
Answer:
Cow, Goat, Sheep, etc. are some examples of herbivorous animals.
What happens when organisms populate a new area and are isolated geographically from other populations of the same species?
Answers
Answer:
The geographically isolated population will acquire genetic differences that eventually will lead to its speciation
Explanation:
Geographic isolation is a biological process produced by the physical separation between organisms of the same species, which may be caused by different types of geographical barriers such as, among others, mountains, earthquakes, rivers, etc. Geographic Isolation produces genetic differences between the separated groups. Over time, these genetic differences will lead to the reproductive isolation of the new population, thereby leading to the formation of a new species in the course of evolution, in a mechanism referred to as speciation.
The two sides of the DNA ladder are connected down the middle by many _______ bonds. *
Answers
Answer:
non-covalent hydrogen bonding between paired bases :)
Explanation:
have a wonderful weekend stay safe!
Answer:
Hydrogen
Explanation:
The two sides of a dna ladder are connected by a row of hydrogen bonds
what is the skeletal system
Answers
Answer:
The Skeletal System is the system of structures that hold up your body. They keep you standing and hold a majority of your organs.
Explanation:
Answer:
you dont know skeletal system omg
Explanation:
skeletal system means that is there in our body without any skin
6/2(1+2)=?
6-1 X 0 + 2 / 2 =?
Answers
Answer: 9 and 6
Explanation:
6−1x0+
2
2
=6+−1+1
Combine Like Terms:
=6+−1+1
=(6+−1+1)
=6
The diploid chromosome number in standard laboratory mice is 40. What is n for this organism?.
Answers
There are 40 diploid chromosomes under ordinary laboratory conditions, hence the haploid number is equal to half of the diploid number. As a result, the diploid number is 2 n = 40.
Which of these cells has a diploid 2n genome?A pair of nonhomologous sex chromosomes and two sets of 22 homologous chromosomes make up the 46 chromosomes found in human somatic cells. The 2n, or diploid, state, is this.
A single cell eventually divides into two daughter cells, each of which has the same amount of genome as the mother (initial) cell. As a result, when mitosis begins, a cell with 40 chromosomes will give rise to daughter cells with 40 chromosomes.
Genetic information is transported from cell to cell in a structure like a thread made of protein and a single DNA molecule. The diploid state is indicated by the word 2n. The presence of two sets of chromosomes in the cell is indicated.
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During the process of diffusion, solute particles will generally move from an area of high solute concentration, to an area of low solute concentration. This happens because... solute particles are drawn to regions of high solvent concentration solute particles move away from regions of high solute concentration the random motion of particles suspended in a fluid results in their uniform distribution. solute particles tend to move until they are uniformly distributed within the solvent, and stop moving.
Answers
Diffusion is a passive process that does not require energy. This is why the movement of molecules occurs from an area of high concentration to an area of low concentration. In the case of solute particles, they move until they are uniformly distributed within the solvent.
During the process of diffusion, solute particles will generally move from an area of high solute concentration, to an area of low solute concentration. This happens because the random motion of particles suspended in a fluid results in their uniform distribution .
Diffusion happens due to the kinetic energy that causes a random motion of molecules. When a molecule collides with another molecule or the wall of the container it is in, the kinetic energy of the molecule is transferred to the molecules it collides with, causing them to move in different directions.
Diffusion can occur in a variety of mediums, including gases, liquids, and solids. It plays a significant role in various biological processes. For example, it helps transport nutrients and oxygen to cells and allows for the excretion of waste products. Diffusion is a passive process that does not require energy.
This is why the movement of molecules occurs from an area of high concentration to an area of low concentration. In the case of solute particles, they move until they are uniformly distributed within the solvent.
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During the process of diffusion: "The random motion of particles suspended in a fluid results in their uniform distribution."
What is diffusion?During the process of diffusion, solute atoms move from an area of extreme solute aggregation to an extent of low solute aggregation. This motion happens due to the chance motion of atoms postponed in a fluid.
As solute particles are changeable motion, they bang into each one and with the firm atoms, generating them to open and enhance evenly distributed. This process persists as far as the solute pieces are evenly delivered inside the stable.
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What do eukaryotic cells have that prokaryotic cells do not?
A.) Cytoplasm
B.) Membrane-enclosed organelles
C.) Cell membranes
D.) DNA
Answers
Answer:
B. Membrane-enclosed organelles
Explanation:
The primary distinction between these two types of organisms is that eukaryotic cells have a membrane-bound nucleus and prokaryotic cells do not.
AGRICULTURAL SCIENCE.
State five importance of organic matter to the soil.
Answers
Answer:
It provides nutrients for crops as it decomposes and contributes to the cation exchange complex necessary for holding applied nutrients in the soil. Soil aggregation is improved by increased organic matter content and hence has a role in maintaining soil structure, drainage and aeration; all of which are necessary for good crop yields3. Soil organic matter also plays a role in increasing moisture retention and consequently the drought tolerance of the crop.
4. In addition to providing nutrients and habitat to organisms living in the soil, organic matter also binds soil particles into aggregates and improves the water holding capacity of soil.
5. It produces healthy crops that in turn nourish people