Alzheimer’s and Parkinson’s are both diseases affecting the central nervous system and they share some similar characteristics. Which of the following is only true for
Alzheimer’s disease?
(a) Patients suffer from the degeneration of nerve cells in the brain.
(b) Symptoms can be treated with medications that increase acetylcholine in the
brain.
(c) It mostly affects people over the age of 55 and presently has no cure.
(d) Patients lack a neurotransmitter essential for normal brain functioning

Answers

Answer 1
Answer: C, there is no cure for it. If there was then you won't die from it and you wouldn't forget things easily. 

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Ron works as a custodian's helper at a school, under the supervision of the custodian. Ron can read and write his name, and can read first-grade books. He moves slowly and sometimes with difficulty. Ron most likely suffers from?

Answers

Answer:

Moderate intellectual disability

Explanation:

Ron works as a custodian's helper at a school, under the supervision of the custodian. Ron can read and write his name and can read first-grade books. He moves slowly and sometimes with difficulty.

Ron most likely suffers from a moderate intellectual disability.

Such type of people can communicate in basic and simple ways. They may have physical signs of impairment.

Approximately 10% of people with intellectual disabilities fall into this category.

What is created using the sugars that areproduced during photosynthesis
A. seeds
B. starches
C. fiber
Helppp pls

Answers

Answer:

B, starches

Explanation:

I’m not positive, but I think I remember this from 6th grade :)

Answer:starch

Explanation combines the glucose molecules a larger molecule , which is starch

A 16-year-old primigravida at 32 weeks’ gestation is admitted to the high-risk unit. Her blood pressure is 170/110 mm Hg and she has 4+ proteinuria. She has gained 50 lb (22.7 kg) during the pregnancy, and her face and extremities are edematous. Which complication is this client experiencing?A. Eclampsiab. B. Severe preeclampsiac. C.Chronic hypertensiond. D. Gestational hypertension

Answers

Answer:

Severe preeclampsia

Explanation:

  • Severe preeclampsia is a condition in which arteriolar spasms occur that result in hypertension and decreased arterial perfusion of the kidneys. This, in turn, causes an alteration in the glomeruli, resulting in oliguria and proteinuria, retention of sodium and water, and finally edema.
  • Since in the given question it has been given that the pregnant female has 170/110 mm blood pressure and 4+ proteinuria along with edema at extremities and her face this leads us to the conclusion that the client is experiencing Severe preeclampsia.

Which of the following is not a characteristic of metals?-high luster
-conducts electric current
-forms crystalline solids
-brittle

Answers

The right option is; Brittle

Metals are substances or chemical elements that form a metallic bond with other metal atoms. Metals are usually lustrous, ductile, opaque, malleable, and good conductors of heat and electricity. Metals form crystalline solids at room temperature and they are not brittle. Examples of metals include copper, silver, iron, mercury and sodium.



Brittle is not a characteristic of the metals.

Further Explanation:

Metals are chemical substances that are inorganic in nature. The most abundant possess are sodium, magnesium, iron, aluminum, and calcium. The copper, platinum, silver, gold not readily react with other elements so they are present in free-state. The characteristics of metal are:

  • High conductivity
  • Malleable
  • Ductile
  • Hard

Metals are mainly crystalline in nature. The crystal structure of metals is very simple with a relatively high degree of symmetry. The metal reacts readily with other non-metal. The reactivity of metals are different from each other, lithium and potassium are highly reactive metal compound. The platinum, palladium, gold, and silver are very low reactive compounds. The metals are usually malleable and ductile in nature that means they can be transformed into wire and sheet. The brittle substances do not possess these characteristics and therefore, brittleness is not a characteristic of metals.

Learn more:

Answer Details:

Grade: High School

Subject: Biology

Chapter: Metals and Non-metals

Keywords:

Substance, compound, metal, crystalline, gold, potassium, lithium, silver, malleable, brittle, ductile, hard, reactivity, electricity, conductivity.

Biologists have separated Monera into two kingdoms according to the differences between the two groups. In which classification does this separation occur?

Answers

Answer & explanation:

The Monera kingdom is formed by cyanobacteria (photosynthetic bacteria) and archaebacteria (also called archaea), all living beings of simple structure, prokaryotic and unicellular.

However, the term "monera" is obsolete in the current classification of kingdoms. The beings that were part of the monera kingdom began to be divided between the Bacteria and Archaea kingdoms.

The Bacteria kingdom represents the largest number of species containing bacteria and cyanobacteria, while the Archaea kingdom has a smaller number of species.

Archeas are no longer classified as bacteria because they have structures that make them closer to eukaryotes (although they are prokaryotes).

Despite this new division, some more simplified books still use the term "monera".

What do stabilizing selection and disruptive selection have in common??

Answers

They both decrease genetic variation. 

Final answer:

Stabilizing selection and disruptive selection are both examples of natural selection that affect population variation. In stabilizing selection, the average phenotype is favored, selecting against extreme variation. Disruptive selection, on the other hand, selects for extreme phenotypes, while the average phenotype is selected against.

Explanation:

Stabilizing selection and disruptive selection are both examples of natural selection that affect population variation.

In stabilizing selection, the average phenotype is favored, selecting against extreme variation. For example, in a population of mice that live in the woods, natural selection favors individuals that blend in with the forest floor and have a brown coat, while lighter or darker mice stand out and are more likely to be preyed upon.

Disruptive selection, on the other hand, selects for extreme phenotypes, while the average phenotype is selected against. For instance, if a population of birds lives in an environment with two distinct food sources, those with short beaks may be better adapted to feed on small, soft fruits, while those with long beaks may be more efficient at capturing insects. Birds with medium-sized beaks may struggle to effectively exploit either food source.

Learn more about natural selection here:

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