What are 3 instruments used throughout history to observe the motion of the planets and starts

Answers

Answer 1

Answer:

Telescope, star chart, and lasers(light).

Explanation:


Related Questions

Which of the following is NOT a monomer?

A) A monosaccharide

B) An amino acid

C) A nucleotide

D) A lipid

Answers

Answer:

I think the answer is letter C.

Natasha has a short stature, although everyone in her family is tall. Unlike her family members and relatives, she has a webbed neck. She dislikes mathematics as she has difficulty understanding the subject. However, she takes part in and enjoys activities that require verbal communication. Natasha's doctor informs her parents that she is missing an X chromosome, making her XO instead of XX. The symptoms and the cause of the symptoms most likely indicate that Natasha has____. Multiple Choice a. Fragile X syndrome b. XYY syndrome c. Klinefelter syndrome d. Turner syndrome

Answers

Natasha most likely has Turner syndrome.

Turner syndrome, also known as 45,X or monosomy X, is a genetic disorder that affects females. It is characterized by the absence of one of the X chromosomes, resulting in an XO chromosomal pattern instead of the typical XX pattern. This condition can lead to various physical and developmental features, which align with the symptoms described for Natasha.

One of the key features of Turner syndrome is short stature, as seen in Natasha's case. Despite having tall family members, her lack of growth can be attributed to the absence of an X chromosome. Additionally, the mention of a webbed neck is also a common characteristic of Turner syndrome. This webbing occurs due to extra folds of skin on the sides of the neck, giving it a "webbed" appearance.

Another aspect mentioned is Natasha's dislike and difficulty with mathematics. While this is not a direct symptom of Turner syndrome, learning difficulties, particularly in spatial and mathematical areas, can be present in individuals with the condition. It is important to note that these learning difficulties can vary among affected individuals.

On the other hand, Natasha's enjoyment of activities that require verbal communication aligns with the strengths often seen in individuals with Turner syndrome. They tend to have good verbal skills and may excel in areas such as language, social interaction, and verbal expression.

In conclusion, based on the symptoms described (short stature, webbed neck, difficulty with mathematics but good verbal communication skills), the most likely diagnosis for Natasha is Turner syndrome.

Turner syndrome, also known as 45,X or monosomy X, is a genetic disorder that affects females. It is caused by the absence of one X chromosome, resulting in an XO chromosomal pattern instead of the typical XX pattern. The condition can have various physical and developmental features. One of the most common characteristics is short stature, where affected individuals tend to be shorter than average. Another notable feature is a webbed neck, which refers to the excess folds of skin on the sides of the neck, giving it a web-like appearance.

In addition to these physical features, individuals with Turner syndrome may also experience certain learning difficulties. While not all individuals are affected in the same way, some may struggle with spatial and mathematical concepts. On the other hand, they often exhibit strengths in verbal communication, language skills, and social interaction. This could explain Natasha's dislike for mathematics but her enjoyment of activities that require verbal communication.

It is important to note that Turner syndrome can have varying effects on individuals, and not everyone will display the same set of symptoms. Therefore, a thorough medical evaluation and genetic testing are necessary for an accurate diagnosis. Early intervention and appropriate management can help address any potential challenges and ensure the overall well-being of individuals with Turner syndrome.

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What does a model of the carbon cycle show?
The amount of Earth’s carbon increases.

The amount of Earth’s carbon is constant.

The amount of Earth’s carbon decreases.

The amount of Earth’s carbon cannot be determined.

Answers

Answer:

I think the increase of carbon

The Amount of Earth's Carbon is CONSTANT.

Pooja has green eyes while her parents and brother have black eyes. Pooja’s husband Ravi has black eyes whil his mother has green eyes and his father has black eyes.

On the basis of the above given information, is the green eye colour a dominant or a recessive trait? Justify your answer.

What is the possible genetic makeup of pooja’s brother’s eye colour?

50% of the offspring of Pooja’s brother are green eyed.with the help of cross show how this is possible.

Answers

The green eye color is a recessive trait because Pooja's parents and brother have black eyes, and recessive traits are expressed only in homozygous (parents are heterozygous).  The possible genetic makeup of Pooja’s brother’s eye color is homozygous dominant AA or heterozygous Aa.

What is a homozygous dominant individual?

A homozygous dominant individual is one that has a domain allele by duplicated instead of another allele for the same locus. In a heterozygous individual, the dominant allele masks the expression of the recessive allele that causes the trait such as occurs in green eyes that are expressed in recessive homozygous individuals.

In the cross here we can be denoted the domain black eye alle as 'A' and the recessive green eye alle as 'a', thereby the cross between heterozygous parents is:

           A      a

A       AA     Aa

a       Aa      aa

Therefore, with this data, we can see that the green eye color is recessive.

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Name three components of a cell’s plasma membrane and explain why each component is important for the function of the cell.

Answers

Answer:

The cell membrane itself is made of a phospholipid bilayer, whereas other molecules that are attached to the membrane can include, proteins, glycolipids and cholesterol.

Explanation:

I hope this helps.

Suppose that a minnow eats 100 marsh plants in one year. How much DDT builds up in the body of the minnow?

Answers

Answer:

50

Explanation:

Explanation:

50 nnnnnsjsjskkswlwlwlwl

List 4 products that are derived primarily from crude oil.

Answers

1. Gasoline: Gasoline is the most common product derived from crude oil. It is used as fuel for cars, trucks, and other vehicles.

2. Diesel: Diesel is another fuel that is derived from crude oil. It is used in diesel engines, which are commonly found in trucks, buses, and some cars.

3. Plastics: Many types of plastics are made from crude oil. These include polyethylene, polypropylene, and PVC, which are used in a wide range of products, from food packaging to toys to construction materials.

4. Lubricants: Crude oil is also used to make lubricants, such as motor oil and grease. These products are used to reduce friction and wear in engines and other machinery.

What is the difference between physical and topographic maps?

Answers

Topographic maps are three-dimensional representations of landmass that use contour lines to depict elevation.Geologic maps are special purposes maps that show the geological properties of land- rock types, rock age, bedding planes, folds, and faults.Topographic maps are used for various purposes such as hiking or mining.

a
The flu occurs when someone is infected with a specific virus. You may know you're sick when you have a fever, a
body temperature above 98.6° F. Based on your understanding of the reading passage, how do you think a fever
would affect enzymes and chemical reactions in your body? Would it decrease, increase, or have no effect on
them? Explain your answer.
Include one paragraph in your answer.

Answers

Well the flu is a virus. Knowing it’s a virus we know they multiply by entering a cell and passing over there rna then converted to be dna and creating other versions of them selfs until cytolysis occurs meaning the cell explodes with these new viruses and do the same with other cells. Since these dna conventions to create protein body parts of virus means there’s a increase in chemical reactions in the body and enzyme production. Also since your body has an immune system it can sense these antigens from the virus’s and cause increase in certain white blood cells to come in and kill these viruses and cells. In essence chemical and enzyme reactions increase. To survive.

How many millimetres of rain falls in London in May?

Answers

Answer: 58.4mm

Explanation:

It rains on fewer days in every month throughout the year than the rest of the UK, and rainfall totals are less in every month, with the driest month, May, averaging 58.4 mm

Verdadero o falso mediante el genotipo podemos determinar si existen dominancia en una característica

Answers

Answer:

Verdadero

Explanation:

Sabemos que los caracteres dependen de los genes. Y los genes pueden presentarse en forma de alelos dominantes, o alelos recesivos. La expresión de los alelos recesivos son enmascarados o escondidos por el alelo dominante. Es decir, que si ambos alelos se encuentran juntos en un heterocigota, solo el alelo dominante se expresará.

Entonces el alelo dominante expresa la característica que resulta dominante, mientras que el alelo recesivo expresa la característica recesiva.

Genotipo:

Homocigota dominante ----> Expresa caracter dominante (Solo el alelo dominante esta presente)Heterocigota -------------------> Expresa el caracter dominante (Ambos alelos estan presentes, pero el dominante es quien se expresa)Homocigota recesivo --------> Expresa el caracter recesivo (solo alelos recesivos estan presentes)

Por ejemplo, si tenemos dos fenotipos rojo y amarillo, y sabemos que el color esta codificado por un gen dialelico llamado M. También supongamos que no sabemos qué alelo expresa qué color. Teniendo solo estos datos, no podemos decir si el rojo es el color dominante o si el amarillo lo es.

Sin embargo, si tenemos los siguientes genotipos acompañando esta información:

MM--> AmarilloMm--> Amarillomm --> Rojo

Recién ahora podemos deducir que el caracter dominante es el amarillo.

An increased cardiac output will provide more oxygen and more glucose to the working muscles.
Explain how this helps the athlete during exercise.

Answers

Answer:Let's dance

Put on your red shoes and dance the blues

Let's dance

To the song they're playin' on the radio

Let's sway

While color lights up your face

Let's sway

Sway through the crowd to an empty space

If you say run

I'll run with you

And if you say hide

We'll hide

Because my love for you

Would break my heart in two

If you should fall into my arms

And tremble like a flower

Let's dance

Let's dance

For fear your grace should fall

Let's dance

For fear tonight is all

Let's sway

You could look into my eyes

Let's sway

Under the moonlight, this serious moonlight

And if you say run

I'll run with you

And if you say hide

We'll hide

Because my love for you

Would break my heart in two

If you should fall into my arms

And tremble like a flower

Let's dance

Put on your red shoes and dance the blues

Let's sway

Under the moonlight, this serious moonlight

Let's dance

Let's dance

Let's dance, dance, dance

Explanation:

How do a liquid's properties differ from a Solid's properties?
asappp please

Answers

If suffer means the difference then liquid is the state of liquid (water like substance) and a solid is the state of thickness (you can’t go through it unlike water)

Which would be a good source to find weather information about your town from last month?


A old copies of local newspapers


B reference book about weather


C a magazine with weather articles

Answers

(option B) reference book about weather would be a good source to find weather information about your town from last month.

what is weather?

Weather refers to the state of the atmosphere and includes terms like how hot or cold, wet or dry, quiet or stormy, clear or foggy, etc.

what is information?

Information is a general term for everything with the capacity to inform. Information is most fundamentally concerned with the interpretation of what may be sensed. which can also be the condition of the atmosphere, including its temperature, pressure, wind, humidity, precipitation, and cloud cover, is referred to as the weather. It is distinct from climate, which is the average of all weather events for a certain place over around 30 years.

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In certain flowers, blue and yellow flowers are incompletely dominant to each
other. Show the cross between a pure blue flower and a pure yellow flower

Answers

The cross between a pure blue flower and a pure yellow flower is attached as an image. The genotypes of the parents are as follows:

Pure blue flower = BBPure yellow flower = YY

What is incomplete dominance?

Incomplete dominance is a type of non-mendelian inheritance in which the alleles of a gene are neither dominant nor recessive over one another, hence, an intermediate phenotype is produced.

According to this question, blue and yellow flowers are incompletely dominant to each other in certain flowers.

The genotype of pure blue flower = BBThe genotype of pure yellow flower = YY

A cross between BB × YY will produce an intermediate phenotype different from both parents.

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In certain flowers, blue and yellow flowers are incompletely dominant to eachother. Show the cross between

a woman is type a blood and she has a child with type o blood. what blood type(s) does the father have? draw as many punnett squares as necessary to answer this question

Answers

Answer:

c

Explanation:

1. List the 4 basic mechanisms of evolutionary change?

Answers

Answer:

natural selectionmutationgenetic driftgene flow

Mechanisms of evolution correspond to violations of different Hardy-Weinberg assumptions.

What were albert plans to avenge the family honour ?

Answers

Albert's father anticipated such as retaliation for Count Monte Cristo's family's honour in a duel.When Albert first encountered Count Monte Cristo in the "Bois de Vincennes," he pleaded for pardon for starting the duel and requested that the count continue to be his friend.

When Count Monte Cristo departed his house without eating, Countess Morsaf referred to Albert and Count Morsaf as the Arabian habit. "Don't eat at the enemy's house," is the custom. She is adamant that Count Monte Cristo shares her belief in this practise, regards them as adversaries, and does not eat. The disgrace of his father and family severely grieved Albert, the valiant son of Count Moserf.

Albert decided to exact revenge on an unidentified family enemy in order to restore his family's honour. Boshan, Albert's closest friend, learned the enemy's name at his request. Count Monte Cristo, Albert's friend, was there. Albert went to the Count of Monte-Cristo's house and challenged a duel while only feeling friendship.

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Practice Problems. Molecular Structure and Covalent Bonding ... Use molecular orbital diagrams to determine the number of unpaired electrons in (a) O2–, ...

Answers

To determine the number of unpaired electrons in O2-, we need to first construct the molecular orbital diagram for the molecule. O2- has a total of 16 electrons, which include two extra electrons compared to the neutral O2 molecule. We can use the molecular orbital diagram for O2 as a starting point and add two more electrons to the diagram.

The diagram shows that O2- has a total of three unpaired electrons, which are located in the antibonding pi* orbitals. Therefore, O2- has three unpaired electrons.
Hi! To determine the number of unpaired electrons in O2-, you can use molecular orbital diagrams. O2 has 12 valence electrons, and O2- has 13 valence electrons.

The molecular orbital diagram for O2- is filled in the following order: 1σ2, 1σ*2, 2σ2, 2σ*2, 1π4, and 1π*3. The number of unpaired electrons in O2- is 1, which is found in the 1π* molecular orbital. This unpaired electron results in O2- being paramagnetic. Using molecular orbital diagrams allows you to determine the electron configuration and predict properties such as magnetic behavior for molecules like O2-.

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transferringeuglena into a dark environment results in the loss of photosynthetic pigment. what conclusion does this support?

Answers

Shifting euglena right into darkish environment outcomes in the loss of photosynthetic pigment: Euglenoids are neither plant-like nor animal-like protists.

Photosynthesis is the method by way of which green plants and positive different organisms rework mild energy into chemical power. at some stage in photosynthesis in green flowers, mild power is captured and used to convert water, carbon dioxide, and minerals into oxygen and strength-rich natural compounds.

Photosynthesis is a technique utilized by plants and other organisms to convert mild strength into chemical energy that, thru cell respiration, can later be released to gasoline the organism's activities. Photosynthesis is the manner wherein sun energy is trapped with the aid of chlorophyll to transform the carbon dioxide and water to produce meals inside the shape of glucose. it is produced within the flora where chlorophyll is present within the chloroplast as trapping the sun's strength initiates the process.

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Animal species hunted to near extinction and then protected start to come back, but contain only the genetic diversity of what?
a. The total genes of the species historically
b.Sexual Selection
c. The Pitcairn Islands
d.The Galapagos Islands
e.The Genetic Bottleneck

Answers

Option e - The Genetic Bottleneck. Animal species hunted to near extinction and then protected, started to come back, but contain only the genetic diversity of the remaining individuals, this is called The Genetic Bottleneck effect.


When a species is hunted to near extinction and then starts to recover due to protection, it will only contain the genetic diversity of the remaining individuals that survived the population decline.

This is known as the genetic bottleneck effect.

This limited gene pool can lead to a reduction in genetic diversity and potentially make the species more vulnerable to future threats, such as disease or environmental changes.

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In the rain forest, the thick foliage allows limited sunlight to filter through to the forest floor. Which wild cat species is best adapted to living in the rain forest?

In the rain forest, the thick foliage allows limited sunlight to filter through to the forest floor.

Answers

Answer

D)Ocelot because they are medium sized cats that live in rain forests and grasslands.Ocelots appear to be better adapted to habitat disturbance and can live in disturbed forests. However, they can be found in a variety of habitats in Belize, from dry scrub to the dense forests.

Which action has the most harmful impact on the environment?
A. Reusing a steel water bottle at a water fountain
B. Buying a new plastic water bottle and throwing it away
C. Drinking directly from a water fountain or from a sink
D. Using a disposable paper cup to get water from your sink​

Answers

Buying a new plastic water bottle and throwing it away has the most harmful impact on the environment.  Thus, the correct option is B.

What is BPA?

Hard plastics, such drinking water bottles and numerous home objects, contain the chemical BPA. According to research, BPA exposure can cause the endocrine system to malfunction. However, the average person's daily exposure levels are unlikely to cause substantial harm.

Using non-BPA-free water bottles and failing to properly dispose of them in a trash can would be the activity that would have the most detrimental effects on the environment.

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The frequency of two alleles in a gene pool is 0.17 (A) and 0.3 (a.) assume that the population is in Hardy-Weinberg equilibrium calculate the percentage of heterozygous individuals in the population.
28% 1% 31% or 46%

Answers

The correct answer based on the calculation would be approximately 10.2% heterozygous individuals in the population. The correct answer is 10%.

To calculate the percentage of heterozygous individuals in a population in Hardy-Weinberg equilibrium, we can use the formula 2pq, where p represents the frequency of one allele (A) and q represents the frequency of the other allele (a).

Given that the frequency of allele A is 0.17 and the frequency of allele A is 0.3, we can calculate:

p = 0.17

q = 0.3

Now, we can substitute these values into the formula:

2pq = 2 \(\times\) 0.17 \(\times\) 0.3 = 0.102

Therefore, the percentage of heterozygous individuals in the population is 0.102 \(\times\) 100 = 10.2%.

Based on the given answer choices, none of them exactly match the calculated value.

The closest option is 1%, but it does not match the calculated percentage accurately. It's possible that there may be a typographical error or slight deviation in the provided answer choices.

The correct answer based on the calculation would be approximately 10.2% heterozygous individuals in the population.

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Question

The frequency of two alleles in a gene pool is 0.17 (A) and 0.3 (a.) assume that the population is in Hardy-Weinberg equilibrium calculate the percentage of heterozygous individuals in the population.

28% 10% 31% or 46%

A person jumps after touching a hot surface. Which layer of skin was responsible for stimulating the person's response?

Answers

Answer:

Dermis

Explanation:

which of the following is essential for the development of discrete, isolated colonies?

Answers

Solid medium is essential for development of discrete, isolated colonies Option D

What is the colony?

The growth of distinct, separate colonies requires solid media. The movement of bacteria or other microbes is restricted when a solid media, such as agar, is utilized.

Instead, they develop in confined spaces, generating distinct, isolated colonies that are visible. This makes it possible to distinguish between various kinds of microbes depending on the features of their colonies, such as their size, shape, color, or texture.

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Missing parts;

5. Which of the following is essential for development of discrete, isolated colonies?A.broth mediumB.differential mediumC.selective mediumD.solid mediumE.assay medium

I WILL MARK YOU BRAINLIEST IF YOU ANSWER THIS QUESTION. THANKS!
Human skin cells are replaced every 20 days, while human brain cells last 30 to 50
years. Why would brain cells need to last for so long? Why might this be a problem if
we managed to extend human life beyond 100 years?

Answers

In this question, there is a misinterpretation of the term "cell lifetime."

The body's structural building blocks are called cells. One of the body's methods for improving performance over time is to extend cell longevity.

Blood and skin cells are examples of "deliberately" disposable cells. This is because the best method for a cell's function is cell turnover. Skin cells are harmed when they are exposed to the abrasive outside environment. A wonderful method for combating the entropy of environmental harm is to slough them off and replace them with fresh ones. Red blood cells are transient "by design" since they lack a nucleus.

The brain's neurons are tuned for a fundamentally different purpose: memory. The brain's objective is to improve throughout time by building up knowledge and memories. These abilities and memories are "stored" as subtle structural adjustments to the way the brain's neuronal connections are organized. In order to maintain that structure as long as possible, the brain must. Since cells are the only thing that exist, the structure of neurons takes the form of their peculiar cell forms, which resemble the complicated tree branches that wind through the brain. If a neuron dies, it also leaves behind its structure and memories. Therefore, neurons should never die in the brain according to ideal design. This has resulted in several safeguards for this structure, including the blood brain barrier that guards against poisoning and the hard shell of the skull. '

Long-term brain health would be an issue if humans could live longer than 100 years. We would need to make investments in preventing this catastrophic mental failure as well as create therapies to keep the brain "fresh" because the brain did not adapt to endure that long (for example, dementia).

if masquiteos have babys in water then can the have babbies in fog

Answers

Maybe, mosquitoes lay eggs in still water like a in pail or bucket

Mosquitoes can lay eggs as long as they’re near a source of water or in water because the babies cannot survive without water

Which plant response is affected by photoperiod?; Which of the following is the factor that initiates flowering in long day plants?; Is directional growth responses of plants to a unidirectional source of light?; How do plants respond to a decrease in environmental temperature?

Answers

The flowering, setting of winter buds, and vegetative growth of plant response are affected by photoperiod.

The timing and length of day and night trigger a biological reaction known as photoperiodism. It regulates the development of winter buds, vegetative growth, and flowering. Detection of seasonal variations is vital to plant life.

The majority of plants are sensitive to photoperiod in many different ways, including seed germination, leaf formation rate, leaf blade length and width expansion, dry matter generation, and partitioning, in addition to its effects on generative growth.

The reaction to variations in day length that enables plants to adjust to seasonal changes in their environment is called photoperiodism.

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How do extra Greenhouse gases impact our planet?

Answers

Answer:

Greenhouse gasses become trapped in our atmosphere and cause a global warming which is literally the warming of the Earth.

The greenhouse effect: some of the infrared radiation from the Sun passes through the atmosphere, but most is absorbed and re-emitted in all directions by greenhouse gas molecules and clouds. The effect of this is to warm the Earth's surface and the lower atmospher

Explanation:

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studies have shown that about ______ new neurons are created each day in each hippocampus of humans. Do you think it is important for artists to reproduce and enhance Renaissance music in this modern age? Why or why not? This is a god, a planet, and can measure heat. If you ask me, that is pretty neat! What is it? As Devorah was just learning how to play racquetball, she did worse when in the presence of others. This is a phenomenon known as __________. why does a water molecule have an uneven distribution of charge The Integral YDx + XDy, Where C Is The Arc Parabola Defined By Y = 1- X From (-1,0) To (1,0) Is Equal To :Select One:a) 1/5b) 5/8c) None Of Thesed) 12/5e) 16/5 A = P(1+r)tnThe formula above is used to calculate compound interest. A represents the amount of money accumulated after n years, including interest; P is the initial principal amount (i.e.,the initial amount deposited); stands for the annual rate of interest as a decimal; and trepresents the number of years and in the number of times the interest is compounded, peryear. If Serina deposits $500 in an account earning 5% interest compounded semiannually and keeps the money in her account for three years, how much money will she have at the end of the five years? Round your answer to thenearest dollar.A $515.00B $530.00C $670.05D$710.10 How did Britain prosper by controlling the trade of the American colonies? Does someone know this answer? Simplify 4a 7b + 2ab a + b.Group of answer choices15ab4a 7b + 2ab3a 6b + 2ab-ab One of the challenges associated with legacy software development practices (i.e. not cloud), was the physical distribution of software. As a result, software upgrades across the consumer base were inconsistent and version control became a problem.i. Trueii. False How much heat Q2Q2 is transferred to the skin by 25.0 gg of steam onto the skin? The heat of vaporization for steam is L=2.256106J/kgL=2.256106J/kg. i dont understand where to start or what to do , help pls . What is the advantage of making Timbre changes with a compressor as opposed to using an equalizer (EQ)? What is the solution to this equation? 2x+10=28 Some common salt was put into flask .Water was then added carefully using a pipette without shaking the salt.After shaking the volume of the solution reduced.Explain the observation The skeletal nervous system is part of the: Which three statements describe the system of political parties in the United States? Where is the centromere located on the chromosome, and what is its role?Select one:a.It is exactly at the center and it is responsible for making the q-arm longer than the p-arm.b.It is not exactly at the center, and it always makes the p-arm longer than the q-arm.c.It is exactly at the center, and it attaches to spindle fibers during cell division.d.It is not exactly at center, and it attaches to spindle fibers during cell division. Which ordered pair will be solution for the function y=8+ X?