In the peripheral nervous system, the _______ and the _______ fuse together to form a single sheath that protects the spinal and cranial nerves and the autonomic ganglia.
a. dura mater; pia mater
b. arachnoid layer; dura mater
c. astrocytes; choroid plexus mater
d. arachnoid membrane; pia mater
e. glia; astrocytes

Answer:

It is Eris, a dwarf planet to but a bit bigger than Pluto, so the answer is D

Explanation:

Answer:

it is D

Explanation:

a) To calculate the allele frequencies, we can use the Hardy-Weinberg equation:

p^2 + 2pq + q^2 = 1

where p is the frequency of the dominant allele (H) and q is the frequency of the recessive allele (h).

We know that hairy fleece (H) is dominant and that 78% of the population has hairy fleece, so we can write:

p^2 + 2pq + q^2 = 1

p^2 + 2p(0.78) + (0.22)^2 = 1

p^2 + 1.56p + 0.0484 = 1

p^2 + 1.56p - 0.9516 = 0

Solving for p using the quadratic formula, we get:

p = (-1.56 ± √(1.56^2 - 4(1)(-0.9516))) / (2(1))

p = (-1.56 ± 1.667) / 2

Since p cannot be negative, we take the positive solution:

p = 0.553

So the frequency of the dominant allele (H) is 0.553, and the frequency of the recessive allele (h) is:

q = 1 - p = 1 - 0.553 = 0.447

b) The percentage of the population that would be heterozygous can be calculated using the equation:

2pq

where p and q are the allele frequencies. So we can substitute the values we calculated above and solve:

2pq = 2(0.553)(0.447) = 0.494 or 49.4%

So about 49.4% of the sheep population would be expected to be heterozygous for the hairy and wooly fleece alleles.

Since hairy fleece is the dominant phenotype and the frequency of this phenotype in the population is 78%, we can assume that the frequency of the dominant allele (H) is q² = 0.78, where q is the frequency of the recessive allele (h).

This means that about 21.1% of the population would carry one copy of the dominant allele and one copy of the recessive allele, and would exhibit the dominant phenotype.

To solve for q, we can take the square root of both sides:

q = √0.78 ≈ 0.88

Therefore, the frequency of the recessive allele (h) is 0.12.

To calculate the percentage of the population that would be heterozygous (Hh), we can use the Hardy-Weinberg equation:

p² + 2pq + q² = 1

where p is the frequency of the dominant allele (H) and q is the frequency of the recessive allele (h).

Substituting in our values, we get:

(0.88)² + 2(0.88)(0.12) + (0.12)² = 0.7744 + 0.2112 + 0.0144 = 1

Therefore, the percentage of the population that would be heterozygous is:

2pq x 100% = 2(0.88)(0.12) x 100% ≈ 21.1%

So approximately 21.1% of the population would be heterozygous for the hairy and wooly fleece alleles.

Thus, With a frequency of 78% for the dominant phenotype (hairy fleece), we can assume that the frequency of the dominant allele (H) is q² = 0.78 and the frequency of the recessive allele (h) is 0.12. Using the Hardy-Weinberg equation, we can calculate the percentage of the population that would be heterozygous (Hh) as approximately 21.1%.

Learn more about  heterozygous at :

https://brainly.com/question/30622664

#SPJ2

Answer:

food and drink

Explanation:

i think

Increase in genetic material (DNA) event is mostly responsible for increasing the opportunity for animals to develop more complex traits. The correct answer is option A.

The evolution of life on earth is marked by an increase in the amount of genetic material in living organisms. This increase in genetic material has enabled animals to develop more complex traits and adapt to a wider range of environments.

The gradual accumulation of genetic changes over time, as well as the movement of organisms into new environments, has led to the emergence of new species with unique physical and behavioral characteristics.

In many cases, these new species have been able to survive and thrive in their new environments because of the complex traits they possess, which allow them to compete for resources and avoid predators more effectively.

The correct answer is option A.

To know more about genetic material refer to-

brainly.com/question/14530382#

#SPJ11

Treated laundry rinse water sometimes used for irrigation and other nondrinking purposes is called gray water (C).

Gray water is described as water that has been used for washing and rinsing purposes, such as laundry and dishes. Treated laundry rinse water sometimes used for irrigation and other nondrinking purposes is called gray water. It differs from black water, which is wastewater from toilets and other sources that is contaminated with human feces, bacteria, and viruses.

Gray water can be reused for non-potable purposes such as watering lawns and gardens, flushing toilets, and washing cars. Gray water use can help conserve water and reduce the amount of water going to wastewater treatment plants. However, it is critical to handle gray water with caution since it may contain chemicals, bacteria, and viruses that can be harmful to human health or the environment, and it should never be used for drinking or bathing.

Hence, the correct answer is Option C.

Learn more about Gray water here: https://brainly.com/question/26993560

#SPJ11

Answer:

The compost pile has an ammonia odor because of the excess Nitrogen present in it.

Explanation:

This problem mostly arises when the compost comprises of high amount of nitrogen-enriched products.

Answer: Black allele has frequency of 0.14.

              Red allele has frequency of 0.86.

             The frequency of heterozygotes is 0.241

Explanation: Hardy-Weinberg model states the frequency of alleles in a population will stay in equilibrium as long as there are external influences. It is also used to determine alleles frequencies using the following equations:

\(p+q=1\)

\(p^{2}+2pq+q^{2}=1\)

p represents frequency of dominant allele;

q represents frequency of recessive allele;

2pq is frequency of heterozygotes;

For the frequency of red allele, which is dominant, we can use:

\(p^{2}=\frac{37}{13+37}\)

\(p^{2}=\frac{37}{50}\)

\(p^{2}=0.74\)

\(p=\sqrt{0.74}\)

p = 0.86

For the black allele:

\(p+q=1\)

\(q=1-p\)

\(q=1-0.86\)

q = 0.14

Frequency of heterozygotes is

2pq = 2(0.86)(0.14)

2pq = 0.241

Frequencies for a population of Muscovy ducks are 0.86 for red allele, 0.14 for black allele and 0.241 for heterozygote.

TRUE. Euchromatin refers to the more open and active regions of chromatin, while heterochromatin refers to the more condensed and inactive regions. H1 is a type of histone protein that helps to organize DNA into chromatin. Studies have shown that euchromatin generally has less H1 associated with it than heterochromatin.

This is because euchromatin is less tightly packed, allowing for more accessibility to DNA and gene expression, while heterochromatin is more tightly packed and less accessible. Therefore, the statement "euchromatin has less H1 associated with it than heterochromatin" is true.

Euchromatin and heterochromatin are two different types of chromatin that can be distinguished by their level of compaction and activity. Euchromatin is a less compacted and more active form of chromatin, while heterochromatin is a more compacted and less active form of chromatin. H1 is a type of histone protein that is associated with chromatin and helps to organize DNA. Studies have shown that euchromatin generally has less H1 associated with it than heterochromatin. This is because euchromatin is more open and accessible, allowing for greater gene expression, while heterochromatin is more condensed and less accessible. Therefore, the statement "euchromatin has less H1 associated with it than heterochromatin" is true.

learn more about Euchromatin

https://brainly.com/question/12318627

#SPJ11

AMD stands for Acid Mine Drainage. It is formed when sulfide minerals in rocks are exposed to air and water, resulting in the generation of sulfuric acid and dissolved metals. This acidic and metal-rich drainage can have detrimental effects on the environment, including water pollution and damage to aquatic ecosystems.

To manage dump construction and minimize the impact of AMD on the environment, several measures can be implemented:

Prevention: One of the primary approaches is to prevent or minimize the formation of AMD in the first place. This can be achieved by implementing proper waste management practices, including selecting suitable waste rock materials, limiting the exposure of sulfide minerals to air and water, and employing effective cover systems.

Neutralization: Implementing neutralization techniques can help mitigate the acidity of AMD. This involves treating the drainage with alkaline substances, such as lime or limestone, to raise the pH and reduce its harmful effects on the environment.

Containment: Constructing and maintaining effective containment systems is crucial to prevent AMD from infiltrating surrounding soils and water bodies. This can include using impermeable liners, such as clay or synthetic materials, to prevent the leaching of acidic drainage.

Water management: Proper water management is essential to control the movement and accumulation of AMD. This may involve implementing diversion channels, collection systems, and treatment facilities to contain and treat the acidic drainage before it enters the environment.

Monitoring and maintenance: Regular monitoring of water quality, pH levels, and metal concentrations is necessary to detect any potential AMD issues and take appropriate corrective measures. Ongoing maintenance and management of dump sites are crucial to ensure the effectiveness of preventive and mitigation measures.

AMD, or Acid Mine Drainage, refers to the acidic and metal-rich drainage that is formed when sulfide minerals, typically found in rocks associated with mining activities, come into contact with air and water. The exposure of sulfide minerals to oxygen and moisture leads to chemical reactions, resulting in the generation of sulfuric acid. This acid then dissolves metals present in the rocks, such as iron, zinc, and copper, which further contributes to the contamination of water bodies and soil.

The management of waste rock dumps is essential to minimize the impact of AMD on the environment. Dump construction should incorporate measures that aim to prevent the formation of AMD, neutralize its acidity, contain its spread, and manage water flow effectively. These strategies help to minimize the release of acid drainage and metals into the environment, protecting water quality and ecosystems.

The management of waste rock dumps is critical in mitigating the formation and impact of Acid Mine Drainage (AMD). By implementing preventive measures, neutralization techniques, containment systems, effective water management, and regular monitoring, the environmental impact of AMD can be minimized. Adhering to best practices and regulations ensures responsible waste management and helps safeguard water resources and ecosystems.

To know more about environment, visit;

https://brainly.com/question/17413226

#SPJ11

The study found no statistically significant difference in methylation levels between smokers, former smokers, and never smokers.

The study aimed to investigate the effects of tobacco smoking on global methylation and hydroxymethylation in oral epithelial cells. Buccal cells were collected from 47 individuals, including smokers, former smokers, and never smokers. The DNA from these cells was extracted, and the levels of methylation and hydroxymethylation were measured using assays similar to enzyme-linked immunosorbent assays.

The results showed that there was no statistically significant difference in the average number of cigarettes between the smoker and former smoker groups. Although methylation levels were lower in smokers (3.1%) and former smokers (2.16%) compared to never smokers (4.16%), these differences were not statistically significant. This implies that tobacco smoking did not have a significant impact on global methylation levels in the oral epithelial cells of the study participants.

However, there was a notable finding regarding hydroxymethylation levels. The study revealed a two-fold increase in hydroxymethylation levels in never smokers compared to smokers. This suggests that the absence of smoking was associated with higher levels of hydroxymethylation in oral epithelial cells.

Overall, while the study did not find statistically significant differences in methylation levels between the smoking groups, it indicated a potential association between smoking status and hydroxymethylation levels in oral epithelial cells.

know more about methylation levels click here:

https://brainly.com/question/31442216

#SPJ11

Erwin Chargaff concluded that in double-stranded DNA, adenine is present in the same amount as thymine, and guanine is present in equal amounts as cytosine.

Erwin Chargaff, an Austrian biochemist, concluded from the observation that in double-stranded DNA, adenine is present in the same amount as thymine, and guanine is present in equal amounts as cytosine. Chargaff’s rule of base pairing states that the number of adenine bases should be equal to the number of thymine bases, and the number of guanine bases should be equal to the number of cytosine bases in the DNA molecule.  There is always a one-to-one ratio between the purines and pyrimidines.

Learn more about thymine

https://brainly.com/question/30645074

#SPJ11

Answer:

A mutation is any change in DNA.

Explanation:

There are plenty of mutations on the world. Some of them are useful.

For example, freckles and red hair are because of a mutation in the MC1R gene.

I hope I didn't hurt your feelings:)

It's a pleasant one. As long as you don't have them all over your face. Or red hair like Anne from Anne from the Green Gables.

If you sleep for only 4 hours, it's also an example of a mutation (sorry I don't know the gene)

6 fingers/toes is an example of a mutation.

I have 5+5fingers and 5+5 toes. And you?

Albinos also have a mutation.

How to protect yourself from mutations?

Well, avoid UV rays and radiation...

Hope it helps you! I LOVE sharing knowledge!

For his job, Keith earns 10% commission on his total sales. To pay for a trip to Top Golf, Keith needs to earn $120 in commissions.

What is meant by commiion?

To learn more about total earn refers to:

https://brainly.com/question/25788016

#SPJ4

Answer:

c

Explanation:

po ang tamang sagon po

Answer:

Osmosis

Explanation:

Water moves in & out of cells through osmosis.

The group of organisms which uses sunlight to convert carbon dioxide and water into sugar and oxygen are producers. Thus, the correct option is A.

Producers are any kind of green plants present in the ecosystem. Green plants make their own food by using the sunlight (solar energy) and carbon dioxide gas from the atmosphere with the energy to make sugar. The plant uses this sugar (carbohydrate), also called as glucose to make many different products, such as wood, leaves, roots, and bark.

This process through which plants produce their food is called photosynthesis. Photosynthesis occurs only in the plants which have chlorophyll pigment (chloroplast).

Therefore, the correct option is A.

Learn more about Ecosystem here:

https://brainly.com/question/1673533

#SPJ6

The projectile's velocity at the tightest point of its trajectory is 30.1 m/s, and the straight-line distance from where the projectile was launched to where it hits its target is 36.37 meters.

"What is in the projectik's velocity at the tightest point of its trajectory?" is: We have to utilize conservation of energy to find the speed at the tightest point of the projectile's trajectory. At the tightest point of the trajectory, all the energy is in the form of kinetic energy. We have gravitational potential energy (GPE) and kinetic energy (KE) at the initial point. The GPE is turned into KE as the projectile is released from the initial position, and the projectile's velocity (speed) is calculated by finding the kinetic energy (KE) at the tightest point in its trajectory. Therefore, the projectile's velocity at the tightest point of its trajectory is 30.1 m/s.

"What is the straight-line distance from where the projectile was launched to where it hits its target?" is:The path taken by a projectile is a parabolic curve in two dimensions. As a result, the projectile will not hit its target unless it is aimed precisely. So, the projectile has a range, which is the maximum distance it can travel in a horizontal direction. The range of a projectile is given by the formula: R = (v² sin 2θ) / g Where: v is the projectile's initial velocityθ is the angle of launching is the acceleration due to gravity from the given diagram, the angle of launch is 30°.

So, the range of the projectile is: R = (30² sin 60°) / (2 * 9.8) = 31.6 meters

However, this is the total horizontal distance travelled by the projectile from the launch point to the point where it hits the target. To find the straight-line distance between the two points, we need to use the Pythagorean theorem.Let's consider the vertical distance between the launch point and the point where the projectile hits the target. This distance is equal to the maximum height reached by the projectile.

This height can be found using the formula: h = (v² sin² θ) / (2g)

Substituting the given values, we get: h = (30² sin² 30°) / (2 * 9.8) = 22.55 meters

Now, using the Pythagorean theorem, we can find the straight-line distance between the launch point and the point where the projectile hits the target. d² = R² + h²d² = (31.6) ² + (22.55) ²d ² = 1320.56d = √ (1320.56) = 36.37 meters

Therefore, the straight-line distance from where the projectile was launched to where it hits its target is 36.37 meters.

The projectile's velocity at the tightest point of its trajectory is 30.1 m/s, and the straight-line distance from where the projectile was launched to where it hits its target is 36.37 meters.

To know more about velocity visit:

brainly.com/question/18084516

#SPJ11

Answer:

chemical energy

Explanation:

The energy conversion goes from chemical energy stored in the fuels, to heat energy as it burns which is converted to kinetic energy as it drives large turbines and finally this is converted to electrical energy. The problem with burning fossil fuels is their effect on the environment.

when you finish showering u put cold water on the area of the pimples and put ice on it for 3-5 mins...do it often

Explanation:

let me put u on. ok so I have acne on my face and I do a daily oatmeal face mask.

(blend oatmeal then add water and mix once out of the blender)

helps with the oils on ur face wich has helped reduce my acne/pimple I would definitely recommend. I also use dove original(unscented) bar to wash my face which I would also recommend. u can also try sialic acid from the brand ordinarily

..hope it helps lol!!

Answer:

hmm need more details?????????..?

Vessels derive from the aortic arch is Brachiocephalic trunk.

The right subclavian and right common carotid arteries emerge from the brachiocephalic artery after a brief superior journey.

To learn more about Brachiocephalic trunk refer to:

brainly.com/question/14746493

#SPJ1

Cellular Respiration:

The main goal of this proccess is to generate a lot of ATP

CO2 gas production happens with this process

Glycolysis, Kreb's cycle and ETC occur in this process

C6H12O6 + 6O2 → 6CO2 + 6H2O + 36 ATP

Photosynthesis

This process makes glucose

6CO2 + 6H2O + light → C6H12O6 + 6O2

Mytochondria

Muscles would have a lot of me in them

Chloroplast

I can be found in plant cells

I can capture light in pigments that are found within me

Water production will happen within me

Tha Calvin Cycle will happen within me

A conditional reasoning example is a logical statement consisting of a hypothesis and a conclusion. "If A, then B" is a type of conditional statement, also known as a conditional statement. If the hypothesis (A) is true, then the conclusion (B) must be true. This is a modus ponens argument. If A is true, then B is true. A is true. As a result, B is true.

Affirming the consequent is an example of an invalid argument. If A is true, then B is true. B is true. As a result, A must be true. This is a false conclusion that cannot be logically derived. The statement "If the sky is cloudy, then it is going to rain" is an example of conditional reasoning. Modus tollens, a valid argument, can stem from this conditional. "If A, then B" is the first premise. "Not B" is the second premise. As a result, "Not A" is the conclusion. The statement "If it is not raining, then the sky is not cloudy" is an example of an invalid argument that can be derived from this conditional. If A is true, then B is true. A is false. As a result, B must be false. This is not a logical argument. It's incorrect.

Learn more about conditional reasoning:

https://brainly.com/question/12518675

#SPJ11

Answer: some characteristics are unusual behavior, and aggressive behavior.

Explanation:

Take it from me, I feed raccoons in my backyard every night. Yes, I feed them by hand, and they are actually very sweet towards me. But, I have come across one rabid raccoon. He was very shy unlike the others, and he growled from a distance. I only could throw crackers towards him in order for him to eat.  But my point is he was very aggressive and shy and he knew he was getting fed by me. And with the other coons, they came up to me and gently took the cracker from my hand. If you just watch behavior in an animal, you will come across plenty of characteristics of rabies.