why does your body need a communication system?

Answer:

The distance between the points is 6.71 unit

Explanation:

Given points;

(0,-8) and (3,-2)

The distance between the points is given by;

\(d = \sqrt{(x_2-x_1)^2 + (y_2-y_1)^2}\)

where;

x₁ = 0,    x₂ = 3

y₁ = -8,   y₂ = -2

\(d = \sqrt{(x_2-x_1)^2 + (y_2-y_1)^2} \\\\d = \sqrt{(3-0)^2 + (-2-(-8))^2} \\\\d = \sqrt{(3^2) \ + (-2+8)^2}\\\\ d = \sqrt{3^2 +6^2 } \\\\d = \sqrt{45} \\\\d = 6.71 \ unit\)

Therefore, the distance between the points is 6.71 unit

The hypothesis supported by the given information is (A) The increase in herbicide usage caused a decrease in the milkweed population, which resulted in a decreased monarch butterfly population.

The evidence provided states that over a period of 10 years, the milkweed population decreased by 75% and the monarch butterfly population decreased by 85%. At the same time, the usage of herbicides increased by 175%.

This information suggests a cause-and-effect relationship between the increase in herbicide usage and the decline in both the milkweed and monarch butterfly populations. Herbicides are chemicals used to decrease weed growth, and milkweed is considered a weed in agricultural settings. The increased herbicide usage likely led to a decrease in the milkweed population since it was specifically targeted for control.

As monarch caterpillars rely on milkweed as their primary food source and shelter, a decrease in the milkweed population would directly impact the monarch butterfly population. With fewer milkweed plants available, the monarch butterflies would have less food and suitable habitat, resulting in their population decline.

Therefore, the supported hypothesis is that the increase in herbicide usage caused a decrease in the milkweed population, which subsequently led to a decreased monarch butterfly population (option A).

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Answer:

I think 4th option is correct

.....................

Answer:

Explanation:

Increase

mitosis refers to the parts of the original nucleus into two nuclei. On the other hand, meiosis refers to each having half chromosomes of the original cell.

in mitosis, there is the maintenance of chromosomes takes place while meiosis leads to a reduction in the no. of chromosomes. There are no variations in mitosis and variants occur in meiosis.

hence at last we can say that the above are the major difference between mitosis and meiosis. All of the explained differences will clearly lead to identifying them in particular. mitosis and meiosis plays a vital role in formation of gametes.

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The area around a charge in which the electric force is experienced by other charged objects is the electric field.

The electric field is a property of the space around a charged object and is created by the presence of that charge. Any other charged object placed within the electric field will experience a force exerted on it due to the interactions between the electric charges.

The electric field can be thought of as a field of influence that extends throughout space, representing the force that would be experienced by a positive test charge placed at any given point within the field. The strength and direction of the electric field depend on the magnitude and sign of the charge creating the field. Electric field lines, which are used to visualize the electric field, point away from positive charges and towards negative charges.

The electric field plays a crucial role in understanding and describing the behavior of charged particles and the interactions between them. It is a fundamental concept in electromagnetism and has applications in various fields, including electronics, electrical engineering, and physics.

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narcotic are illegal drugs is a true statement.

Option A is correct

The term narcotic originally referred medically to any psychoactive compound with numbing or paralyzing properties

Chemicals with an intense physiological effect, such as drugs and psychoactive chemicals, modify brain function and momentarily affect perception, mood, and feelings.

Due to their detrimental effects on the body and human health, drugs are outlawed in the majority of nations around the world. Heroin and cocaine, which are deadly narcotics, cause the most severe addiction.

Drug dependence results in both physical and mental dependence.

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Complete question:

. Narcotics are illegal drugs

A. O True

B. O False

Answer:

b. 542.0

Explanation:

edge 2021

Answer:

seedless plants do not bear seeds for propagation, whereas seed plants bear seeds for multiplication.

Explanation:

The difference between seed plants and seedless plants is that seedless plants do not bear seeds for propagation, whereas seed plants bear seeds for multiplication. The plant kingdom is traditionally divided into four main divisions, i.e Thallophyta, Bryophyta, Pteridophyta and Spermatophyta

The sporophyte is the dominant generation, but multicellular male and female gametophytes are produced within the flowers of the sporophyte.

In many plants, the sporophyte generation is the dominant generation. This means that the sporophyte is larger and lives longer than the gametophyte generation.

hope it helps you

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Answer:

The complete glycolysis and citric acid cycle pathway is shown in diagram.

# Reactions of glycolysis that –

I. Consumes ATP       = 1, 3

II. Produces ATP        = 7, 10

III. Consumes NAD+ and produces NADH = 6

IV. Consumes FAD and produces FADH2 = none

# Reactions of TCA that –

I. Consumes ATP       = none

II. Produces ATP        = 6

III. Consumes NAD+ and produces NADH = 4, 5, 9

IV. Consumes FAD and produces FADH2 = 7

Explanation:

Answer: The opening of the double helix and separation of the DNA strands, priming of the template strand, and construction of the new DNA segment are the three main phases in replication. The DNA double helix's two strands uncoil at a precise spot known as the origin during separation.

Explanation:

Answer:

one that recognizes a 2 base pair sequence would cut DDNA every 16 bases. A 3 base pair recognition site would be found every 64 bases.

Conclusion that Bob was able to draw about minerals after reading the chart provided by his physician : A.) Minerals found in healthy foods help the body to function properly.

Minerals are necessary for building strong bones and teeth, controlling body fluids inside and outside cells and turning the food you eat into energy. Mineral deficiencies can lead to variety of health problems such as weak bones, fatigue, or decreased immune system.

Minerals help maintain acid-base balance to keep body pH neutral and help regulate body processes, such as in enzyme systems. Minerals also function in nerve impulse transmission and muscle contraction.

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Answer:

Uracil

Explanation:

Adenine pairs with thymine and cytosine pairs with guanine in DNA but when it's RNA thymine is replaced with uracil

1 Copy and complete the sentences using these words:

chromosomes DNA genes genetic information

gametes nuclei

resemble

Offspring___________their

to them in the

parents because of the

passed on

(sex cells) from which they developed.

This information is contained in the thread-like structures

called

that are inside the

threads are made of proteins and

found in small units called

of most cells. These

The information is confusing bro.

Answer:

adventitious root ➡ a root that grows from plant parts other than roots

pneumatophores ➡ a root that grow out of the soil

tap root ➡ a root that is conical in shape and develops from the radicle.

fibrous root ➡ a root that develops like a tuft of hair like roots and is short-lived.

prop root ➡ a root that grows from branches to the ground

Explanation:

Adventitious roots are known to be roots that grow from a tree organ other than the root. The growth can be from the stem or leaf of that tree. This root makes it possible for vegetative propagation of plants to take place through stem or leaf cuttings. It can seen on rhizomes, corms, and tubers.

Pneumatophores are roots that grow out of the soil. They grow in saline mud and grow upward out of the mud and water. These type of root system are found in mangrove species. A tap root system is formed when the radical keeps growing and some other roots form along the tap root. They are conical in shape too.

The correct order of steps is 3, 2, 4, and 1.

It is a process whereby the genetic codes in transcribed mRNA molecules are translated into their respective amino acids.

The steps involved in translation are:

Thus, the step is 3,2,4, and 1.

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A person that has a recessive, faulty allele for a disease, but does not have the disease would be termed a carrier for the disease.

In genetics, the allele for a trait can be dominant or recessive. When an allele is dominant, the trait will be expressed even in heterozygous conditions. This is not the case with recessive alleles.

For recessive alleles to be expressed, they need to be homozygous in nature. In heterozygous condition, anyone carrying the trait is said to be a carrier, and does not usually express the trait.

They are called a carrier because they do not express the trait themselves, however, they have a chance of passing the trait down to their offspring if they mate with another carrier individual.

In other words, a person with a recessive allele for a disease, but who does not express the disease is a carrier of the disease.

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a) When the concentration of ATP is low, phosphofructokinase becomes more active.

b) AMP performs opposite to the performance of ATP (adenosine triphosphate).

a) From the given graph, we notice that when the concentration of ATP is low, phosphofructokinase becomes more active. When there is a greater amount of ATP (adenosine triphosphate), the enzyme is inhibited and the bonding with fructose 6-phosphate is reduced. Low adenosine triphosphate concentrations cause the production of a hyperbolic curve, which is later converted to a sigmoidal curve by high ATP concentration. Fructose 6-phosphate can stimulate or activate phosphofructokinase.

b) Glycolysis is a biological process that splits sugars into three-carbon compounds, pyruvate, while simultaneously releasing two molecules of ATP and two molecules of NADH (nicotinamide adenine dinucleotide). Because this enzyme is controlled by glycolysis, glycolysis plays a key role in the phosphofructokinase process and activation. A high concentration of ATP inhibits enzymes and reduces the bonding with fructose 6-phosphate, whereas AMP reduces the effect of ATP on phosphofructokinase. AMP works in the opposite direction of ATP.

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The complete question is: The enzyme phosphofructokinase acts on fructose 6-phosphate at an early step in glucose breakdown. Regulation of this enzyme controls whether the sugar will continue on in the glycolytic pathway.

a) Using the graph, Identify the condition under which phosphofructokinase is more active.

b) Given what you know about glycolysis and regulation of metabolism by this enzyme, explain the mechanism by which phosphofructokinase activity differs depending on ATP concentration.

Answer: Number 2 is a protonated water molecule and present in all aqueous acids

3 is the characteristics of a base are:

Properties of acids and bases

4 is: an oxygen and hydrogen atom held together by a single covalent bond

There are multiple answers for number 5

For a strong one, you can put hydrochloric acid

and for a weak one, you can put oxalic acid

Answer:

True

Explanation:

Yes it is since it intrigues to reader to go deeper into your research paper. In addition, it also gives you good dialoge for what you write/say next.

Answer:

Let us assume:

Spotted coat color = ss (homozygous recessive)

Solid coat color = SS  (homozygous dominant)

and, the heterozygous = Ss ,

and the gametes formed would be S and s for each parent, so the next generation would be :

Male/Female    S                                           s

S              SS(Solid coat color pups)         Ss(Solid coat color pups)

s             Ss(Solid coat color pups)            ss(Spotted coat color pups)

By this punnet square the ratio of phenotype is : 3 : 1 of solid : spotted

On this basis

i) 4 with solid fur and 1 with spotted fur out of first litter of five:

Using binomial expansion equation, where n = 5, x = 4, p = 0.75, q = 0.25. The answer is 0.396 = 39.6% of the time.

ii) A first litter of six pups, four with solid fur and two with spotted fur, and then a second litter of five pups, all with solid fur.  For the first litter, n = 6, x = 4, p = 0.75, q = 0.25; for the second litter, n = 5, x = 5, p = 0.75, q = 0.25.

Due to the litters are in a specified order, one need to use the product rule and multiply the probability of the first litter times and the second litter. The answer is 0.070, or 7.0%.

iii) The product rule has been applied and multiply the probability of the first pup (0.75) times the probability of the remaining four.

By using binomial expansion equation the probability of the remaining four, where n = 4, x = 3, p = 0.75, q = 0.25.  The probability of the first litter is 0.316.

Similarly the probability of the remaining five by binomial expansion equation, where n = 5, x = 4, p = 0.75, q = 0.25.  The probability of the second litter is 0.025.

The probability of the first litter (0.316) times the probability of second litter (0.025). The answer is 0.008, or 0.8%.

Answer:

Scientists use volcanic activity data from this area to show the relationship between volcanic activity and lithospheric plate motion. Hot Spots and Plate Tectonics: A volcanic hot-spot is an area in the mantle from which heat rises in the form of a thermal plume from deep within the Earth. Higher heat and lower pressure at the base of the lithosphere melts rock and forms magma.

Explanation:

energy moves through everything really

The frequency of the dominant allele is 0.99, the frequency of the recessive allele is 0.01, and the percentage of heterozygous individuals (carriers) in the Hispanic population is 1.98%.

What is Frequency?

Frequency refers to the number of occurrences of a particular event or phenomenon in a given unit of time or space. In genetics, frequency typically refers to the number of occurrences of a particular allele or genotype in a population. For example, the frequency of a particular allele in a population is the proportion of that allele in the total number of alleles at the same locus in that population.

To calculate the frequency of the dominant and recessive alleles, we can use the Hardy-Weinberg equation:

Since cystic fibrosis is a homozygous recessive condition, we know that  \(q^{2}\)= 1/10,000, or 0.0001. We can solve for q by taking the square root of both sides:

q = √(0.0001) = 0.01

To find p, we can use the fact that p + q = 1:

p = 1 - q = 1 - 0.01 = 0.99

So the frequency of the dominant allele is 0.99, and the frequency of the recessive allele is 0.01.

To calculate the percentage of heterozygous individuals (carriers), we can use the equation:

2pq * 100%

where 2pq represents the frequency of heterozygous individuals. Plugging in our values, we get:

2pq = 2(0.99)(0.01) = 0.0198

So the percentage of heterozygous individuals in the Hispanic population is:

0.0198 * 100% = 1.98%

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Growth of bacterial cultures is defined as an increase in the number of bacteria in a population rather than in the size of individual cells.

The growth of a bacterial population occurs in a geometric or exponential manner: with each division cycle (generation), one cell gives rise to 2 cells, then 4 cells, then 8 cells, then 16, then 32, and so forth.

Numerous environmental factors as well as the characteristics of the individual bacterial species govern the generation time, which differs among bacteria.

For instance, the generation time for the fastest-growing bacterium, Clostridium perfringens, is approximately 10 minutes; for the fastest-doubling bacterium, Escherichia coli, the generation time is 20 minutes; and for the slowest-growing bacterium, Mycobacterium tuberculosis, the generation time is between 12 and 16 hours.

Therefore, Growth of bacterial cultures is defined as an increase in the number of bacteria in a population rather than in the size of individual cells.

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The main benefit of precision agriculture is the more effective utilization of natural resources.

Defining natural resources.

Minerals that can be discovered on Earth and that are used to sustain human life and fulfill human needs are known as natural resources. A renewable environment is something that humans use that originates from the natural world. Stone, sand, minerals, oil, coal, or natural gas are examples of natural resources. Other natural resources include things like air, sun, soil, and drink.

Environmental resources are crucial for ensuring wellbeing. Even without the plants that eat, the fresh water we drink, or the clean air we breathe, we might survive. We need natural resources in order to construct buildings with heat or roofs over our heads. They are necessary for us to survive and thrive.

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Blood cells are red, squishy, rounded, and have an indentation in them in the middle. Plant cells are green and firm and have a more square, boxy shape. Plant cells are larger than blood cells.

Plant cell is different in size, colour and shape from blood cell.

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Answer: