Answer:
Alzheimer's disease.
Explanation:
It is A progressive disease that destroys memory and other important mental functions.
Brain cell connections and the cells themselves degenerate and die, eventually destroying memory and other important mental functions.
Symptoms :
Cognitive: mental decline, difficulty thinking and understanding, confusion in the evening hours, delusion, disorientation, forgetfulness, making things up, mental confusion, difficulty concentrating, inability to create new memories, inability to do simple maths, or inability to recognise common things
Behavioural: aggression, agitation, difficulty with self care, irritability, meaningless repetition of own words, personality changes, restlessness, lack of restraint, or wandering and getting lost
Mood: anger, apathy, general discontent, loneliness, or mood swings
Psychological: depression, hallucination, or paranoia
Also common: appetite loss, difficulty with skilled movement, or paraphasia
there is no cure for Alzheimer's disease or a way to stop or slow its progression, there are drug and non-drug options that may help treat symptoms.
Cause:
Alzheimer's disease is thought to be caused by the abnormal build-up of proteins in and around brain cells.
I chosed it because it is very common
Over 1.5 million people come up with this disease
A fiber reinforced composite contains e-glass fibers in an epoxy matrix. E for the glass is 72 GPa, E for the epoxy is 2.4 GPa. Find the elastic modulus of a composite that contains 5% fibers in the longitudinal direction, Ecl
Answer: hello your question is in complete below is the complete question
A fiber reinforced composite contains e-glass fibers in an epoxy matrix. E for the glass is 72 GPA, E for the epoxy is 2.4 GPa. Find the elastic modulus of a composite that contains 5% fibers in the longitudinal direction, Ecl = ViEi + EmVm? (note Vi + Vm= 1.) O 5.88 GPa O 5.66 GPa O 2.52 GPa O 6.74 GPa
answer : 5.88 GPa
Explanation:
Fiber reinforced composite containing e-glass fibers
E for the glass ( Ei ) = 72 GPa
E for the epoxy ( Em ) = 2.4 GPa
Determine the Elastic modulus of a composite containing 5% fibers
percentage of glass = 5% = Vi = 0.05
∴ percentage of epoxy = 95% ; Vm = 0.95
using the relation included in the question
Ecl = Ei Vi + Em Vm
= ( 72 * 0.05 ) + ( 2.4 * 0.95 )
= 3.6 + 2.28 = 5.88 GPa
Understanding Dose vs Exposure
John works applying pesticide X to agricultural fields. He spent the morning cleaning out a tank that had contained concentrated pesticide X. The tank was large and he was standing in water all morning (4 hours) power washing the tank. Human skin is a wonderful barrier to entry of compounds as long as it is dry and intact, but wet wrinkly skin can absorb toxins. About 5% of pesticide X absorbs into wet skin and John was in contact with water that had a total of 32 g of the pesticide in it.
After the morning is over, John has lunch but does not wash his hands; he has 2 g of the pesticide on his hands. Pesticide X has about 90% absorption from an oral dose.
Finally, John works in the field in the afternoon a crop plane flies over dusting the crops with pesticide X, the air he breathes in has a total of 5 grams of the compound in it. Pesticide X is known to have absorption of about 50% through inhalation.
What is John’s exposure to Pesticide X and what is his dose?
Route of Exposure Exposure (grams) Dose (grams)
Dermal
Oral
Inhalation
Total
Looking at the total exposure and dose, what percentage of his exposure was a dose?
Answer:
The correct answer is - 15.13%
Explanation:
According to the question, the exposure of the pesticide X to the skin of John is by different routes and amount of the exposure is given and the percentage value is calculated as well:
Route of exposure --- exposure in gram---Dose in gram
Dermal ------------------------32-----------------------32*5/100= 1.6
Oral------------------------------2-----------------------2*90/100= 1.8
Inhalation----------------------5-----------------------5*50/100= 2.5
Total --- -----------------------39 -----------------------5.9
On the basis of this, the exposure is mainly by inhalation, the total exposure is about 39 grams about 5.9 percent. However,
The percentage of dose exposure = (5.9/39)*100
= 15.13%
Capillaries are very thin, narrow blood vessels that allow for the transfer of oxygen, carbon dioxide, and nutrients. The image shows
how normal red blood cells and sickle-shaped red blood cells flow through a capillary,
Use information in the image to describe two ways that the sickle cell gene mutation affects the ability of red blood cells to perform
their normal function
Answer:
less packaging of oxygen
Explanation:
normal RBC (red blood cells) have a large surface area for oxygen packaging due to its biconcave shape but when mutation occurs the RBC being produced by the short bones is sickle shaped reducing surface area of haemoglobin exposed, responsible for packaging oxygen so tissues don't get right amount of oxygen
Which of the following thrive in tropical areas and absorb light?
Greener Air Plants
Grayer Air Plants
Answer: Greener air Plants
give an example of a change that the ecosystem was not able to recover from and return to equilibrium.
Answer:
Forestal tiene una cierta capacidad de "cicatrizarse" para recuperarse. Esta resiliencia ecológica varía con el contexto biogeográfico e histórico. El oeste de Nueva Orleans, seis meses después del paso del huracán Katrina
Explanation:
4. Fungi have two modes of reproduction, creating offspring either sexually or asexually. Hov does a fungus carry out asexual reproduction?
a. By producing sperm and egg cells
b. By producing spores
C. By cloning an entire organism
d. By dividing in half to create two separate organisms
Answer: b. By producing spores
Explanation:
Human activities have resulted in changes to the atmosphere. true or false
(06.04 LC)
Fertilization usually occurs in the (3 points)
A. End of the Fallopian tubes B. Vagina
C. Ovaries
D. Uterus
Answer:
A
Explanation:
The symptoms of acronogaly
are all except
A. Impaired glucose tolerance
B. Dry skin
C. Impaired thyroid function and construction
D. Impaired gonadal function
E. Obstruction sleep apnea
What do homologous and analogous
structures have in common?
How can we reduce the amount of waste by home?
Answer:
you can recycle your bottles and reuse them for anything you might need .
Explanation:
Which of the following particles has no charge?
A. Ion
B. Proton
C. Neutron
D. Electron
Which process illustrates a feedback mechanism in plants?*
(1) Chloroplasts take in more nitrogen, which increases the rate of photosynthesis.
O
(2) Chloroplasts release more oxygen in response to a decreased rate of
photosynthesis
(3) Guard cells change the size of leaf openings, regulating the exchange of gases.
(4) Guard cells release oxygen from the leaf at night.
Antibody molecules and receptor molecules
Answer:
The first one is your answer
Chloroplasts take in more nitrogen, which increases the rate of photosynthesis illustrates feedback mechanisms in plants.
feedback mechanism is a form of system regulation that occur in living organs which help to return or restore the body to it's original normal internal condition for sustainability of living. It is also called homeostasis.
Chloroplasts take in more nitrogen, which increases the rate of photosynthesis illustrates feedback mechanisms in plants because nitrogen helps to increase the concentration of chlorophyll which is the green pigment house in chloroplast that aid the increase of photosynthesis rate in plants.
Therefore,Chloroplasts take in more nitrogen, which increases the rate of photosynthesis illustrates feedback mechanisms in plants.
For more details on feedback mechanism of plants check the link below.
https://brainly.com/question/14457420
List 3 properties of the
hair's cuticle
Answer:
Cuticle, Cortex, MedullaBUTProperties include: SmoothnessFlatnessMalleabilityExplanation:
These are the main three properties of the hair's cuticle.
Answer:
smoothness
Explanation:
elasticity, softness
please help i am giving away brainiliest
The ______________ system is a collection of glands that produce and secrete hormones.
A. endocine
B. reproductive
C. immune
No dam links
Answer:
A: endocine
Explanation:
Describe at least three large - scale detrimental consequences of rising temperatures
Answer:
En primer lugar hay que decir que en contra de lo que puedan pensar muchas personas, el aumento de las temperaturas es una realidad. De hecho, no hay más que ver algunos datos comparativos para darse cuenta, por ejemplo, de que la temperatura de los polos ha aumentado considerablemente en el último siglo.
En primer lugar y por encima de todo tenemos que tener muy claro que el hábitat está cambiando de una manera abismal por lo que la vida del ser humano en La Tierra cada vez es más complicada. Si a esto le unimos el hecho de que nosotros no somos el único ser vivo cuya vida se complica, podemos concluir que muchas especies no serán capaces de adaptarse a estos cambios por lo que morirán. Un cambio que se puede llevar consigo gran parte de las cosechas que existen a día de hoy.
Una serie de consecuencias que lejos de ser catastróficas son más que plausibles. Es cierto que del mismo modo que esta situación se puede dar, no es menos cierto que todavía hay opciones de revertir la situación. La pregunta, sin embargo, es saber si el ser humano está dispuesto a ello.
Explanation:
Is there a relationship between the environment & what an animal looks like?
how would a large increase in the salinity of an estuary most likely affect the ecosystem of an estuary
Answer:
it would most likely kill a bunch of the animals and plants that live there
Explanation:
hiw has human trafficking displayed itself in communities.
Explanation:
Human trafficking is causing a serious threat.It is the trade of humans,most commonly for the purpose of sexual slavery,forced labour or commercial sexual exploitation for the trafficker or others.The business is started with foreign employment,marriage,travelling to beautiful cities etc and such illiterate and poor people are lured by them.Thus,it has displaced a negative impact and a questioning glance to the people about human kind and humanity.
b) ¿Qué beneficios tienen los programas de vacunación sistemática de una población? ¿Que objetivos persiguen?Justifica la respuesta
La respuesta correcta para esta pregunta abierta es la siguiente.
A pesar de que no se anexan opciones o incisos para responder, podemos comentar lo siguiente.
Los beneficios que tienen los programas de vacunación sistemática de una población son varios. Entre ellos, mantener un programa continuo y esquemático de reforzamiento de la inmunidad de las personas para fortalecer la prevención de enfermados y limitar que se esparza esa enfermedad entre la población.
¿Qué objetivos persiguen?
El poder inmunizar a la población de manera masiva y llevar un mejor control del registro de vacunación, Este tipo de programas se enfoca en la prevención de la enfermedad y protege a la mayoría de la población, sobre todo a la vulnerable.
Based on the information given above, which of the following models best represents the relationship between zooplankton , minnows, and largemouth bass in a freshwater ecosystem?
Chose the correct image to answer the question above. NEED THIS FAST
Answer:
Option C: Minnows have a direct negative effect (⇒(-)) on the population size of zooplankton. Basses have a negative effect (⇒(-)) on the population size of minnows. Basses have an indirect positive (---> (+)) effect on zooplankton.
Explanation:
In the trophic web occurs a process of energy transference through different organisms that places at different levels. Each level feeds on the preceding one and becomes food for the next one. The first link is an autotroph organism or producer. The following links are the consumers: herbivores are primary consumers and feed on producers. Carnivores are secondary consumers and feed on herbivores, and so on. The last links are the decomposers, microorganisms that act on dead animals degrading organic matter.
If any of the links change their population size (increasing it or decreasing it), it affects the superior links and the immediately anterior link.
In the exposed example, zooplankton, minnows, and basses are continuously interacting.
Minnow →(-) ZooplanktonMinnows feed on zooplankton. So they affect direct and negatively the invertebrate population. The more minnows there are, the more zooplankton they eat. So, as long as the minnows population keeps growing, the zooplankton population will be more affected because they will not have enough time to reproduce and recover from predation.
Bass →(-) Minnows
Bass feed on minnows, so they also affect direct and negatively the fish population. And the more the bass population grows in size, the more affected the minnows will be because many more basses will be eating them.
Bass ---->(+) Zooplankton
On the other hand, by negatively affecting the minnows population, basses will be indirectly and positively influencing the zooplankton population. This fact is because the more minnows basses eat, the fewer fishes there will be to prey on zooplankton. So the invertebrate will have enough time to recover its population size. The predation pressure acting on zooplankton will decrease thanks to the action of basses preying on minnows.
Here there is a natural equilibrium between the three species. It is a representation of typical cycle predator-prey.
Minnows prey on zooplankton. Minnows population grows, and the zooplankton population decreases.As the minnow population grows, there is more available food for basses, who eat more minnows. As the bass population increases, the minnows population decreases in size. And as there are fewer minnows, the zooplankton population will increase. If minnows decrease in number, basses will decrease in number too. Minnows will not be severely affected by basses, so their population increases again. As zooplankton also increased, there will be more available food for minnows that will keep reproducing. And the more minnows there are, the more available food for basses there will be. And basses population will increase again. So you can see that zooplankton is indirectly and positively affecting the basses population too (not shown in images).what is one way that people make blue pigment? How else do you think the color blue might be made?
Answer: Some people use minerals such as Lapis Lazuli, you can also get a blue pigment from some plants.
Explanation:
You eat at chips and salsa at Qdoba. All that salt causes your cells to lose water through
osmosis. Your hypothalamus senses that your cells are shrinking
and sends a message to the
pituitary to release antidiuretic hormone. ADH sends a message to the kidneys to stop
releasing water in the urine. You also start to feel thirsty. The result is that your cell's water
level increases back to normal. This is an example of
A: Negative feedback
B: Positive feedback
Answer:
B
Explanation:
this is going to cause your body cells to hold water
AG CLASS
Which of the following distinguishes the horticultural professional consulted regarding the best standard practices for dealing with a fungus outbreak in a greenhouse?
horticultural therapist
floriculturist
viticulturist
phytopathologist
Answer:
phytopathologist me thinks...
if you see this stan ateez <3
In one or two sentences, explain how cats and dogs, both mammals, could be classified as distinct animals. What characteristics set them apart from one another?
Answer:
Cats and dogs are both mammals because they have hair, are warm-blooded, and nourish their young with milk. Dogs and cats are distinct species, incapable of producing offspring together because of the many differences in their genome.
Explanation:
i hope this was helpful!
Mammals are warm-blooded vertebrate(backbone) animal distinguished by hair or fur on their body.
Mammals give birth to younger ones.Female mammals produce milk in their mammary gland to feed the younger ones.Examples of mammals includes, Huma being, lion, dog, tiger, cat, horse, goat, cow etc.
Since, cats and dogs are both mammals, the difference between them is the genome.Genome is the complete genetic information (DNA or RNA) of an organism.Cats and dogs have different genetic information.
Read more:
https://brainly.com/question/24110071
The thyroid gland produces a substance
containing iodine that helps regulate growth.
Goiter is an enlargement of the thyroid gland
caused by a lack of iodine in the diet. Goiter
is uncommon in coastal areas where people
eat seafood that contains a form of iodine.
It is more common inland, where people
eat food that has been grown in soil
lacking iodine.
Which phrase restates the cause of the
disease goiter, as given in the passage?
(1) eating too much fish
(2) eating too little of foods high in iodine
(3) exposure to a bacterium found in iodine
(4) fertilizing the soil with iodine
(5) inheriting a defective thyroid gene
Answer:
eating too little of foods high in iodine
Explanation:
Iodine deficiency lead to goiter that is why it is necessary to consume food rich in iodine like taking iodized salt or sea foods which prevent this. This lead to goiter because, your thyroid gland need iodine to repair tissues, produce thyroid hormones, aid metabolism and for proper growth,therefore deficiency of it will result in non of the following functions.
Which of the following characteristics would you expect to find in a population of birds in which females choose their mates?
Answer:
The males are much larger than the females
Which of the following is a disadvantage of hydrogen fuel?
Answer:
The answer is A. It is expensive to produce and transport
Explanation:
What would most likely happen if there were no condensation stage in the water cycle
Answer:
No precipitation.
Explanation:
if there were no condensation stage in the water cycle then there will be no precipitation and as a result the water cycle will stop. Condensation is the change of water from its gaseous state or water vapor into liquid water. This condensation process occurs in the upper atmosphere where the temperature is lower as compared to the earth surface so the water vapors turn into liquid state and will fall from the sky in the form of rainfall and snowfall so we can say that no condensation will leads to no precipitation.
During the water cycle, gravity assists with:
A. water vapor floating upwards
B. clouds becoming full of water molecules and more dense
C. precipitation
D. oceans
Answer:
B
Explanation:
Clouds are like fog and it absorbs the molecules and becomes a defense