I need the answers for 8-12 plz, ASAP is due soon...

Answer:

Airplanes have wings, just like birds. They also have a light skeleton (or framework) to decrease their weight, and they have a streamlined shape to decrease drag. The big difference is that airplanes do not flap their wings.

Answer: The event that occurs at point V is Cooling. When it cools it forms into hard rock due it harding. Magma rock rises as the temperature increases and quickly hardens as the thing cools.

TDLR: The answer is cooling.

Explanation:

Answer:

Answer is on the pic.

Explanation:

I hope it's helpful!

The population of deer in the wildlife sanctuary can be estimated using the formula:

P(t) = P(0) * (1 + r)^t

where P(t) is the population after t years, P(0) is the initial population, r is the growth rate per year, and t is the number of years.

In this case, the initial population (P(0)) is 40 deer, the growth rate (r) is 60% per year (0.60), and we need to estimate the population after one year (P1) and two years (P2).

To calculate P1:
P(1) = 40 * (1 + 0.60)^1
P(1) = 40 * (1 + 0.60)
P(1) = 40 * 1.60
P(1) = 64

Therefore, the estimated population after one year is 64 deer.

To calculate P2:
P(2) = 40 * (1 + 0.60)^2
P(2) = 40 * (1 + 0.60)^2
P(2) = 40 * 1.60^2
P(2) = 40 * 2.56
P(2) = 102.4

Therefore, the estimated population after two years is 102.4 deer.

It's important to note that these are estimates and assume that there are no constraints on the population growth. In reality, factors like limited resources, predation, and disease can affect the growth rate and population size.

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In a process called transcription, an RNA copy of a gene sequence on the DNA molecule is made.

Transcription is the first step in gene expression. This involves copying the DNA sequence of a gene to create an RNA molecule. Transcription is done by an enzyme called RNA polymerase, which joins nucleotides together to form an RNA chain. All RNA in the cell is made by DNA transcription. This process has some similarities with the process of DNA replication described in the chapter.

Transcription begins by opening and unwinding small sections of the DNA double helix to reveal the bases of each strand of DNA. During transcription, the enzyme RNA polymerase uses DNA as a template to create pre-mRNA transcripts. Pre-mRNA is processed to form mature mRNA molecules that can be translated to build the protein molecules encoded by the original gene.

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The chair will need to be moved a longer way, by Diana. Simple machines are any tools that have few or no moving parts and alter motion and the strength of a force to carry out task.

Lever, wedge, wheel and axle, pulley, and screw are examples of rudimentary machinery. It is utilised to lift heavy objects because an inclined plane has a sloping surface. Because less effort is needed to move an object up the incline on the plane than there is weight to be raised, this mechanical advantage is available.

In ramps and switchback roads, for example, where a tiny force acting over a long distance along a slope can produce a significant amount of work, the inclined plane idea is widely applied.

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Answer:

B because it is NOT A C OR D

Explanation:

Answer:

it be half and half

Explanation:

because the child will take 50% for the parents

A) They can change their location;C) They can change their number;D) They can change their shape; these are the ways that mitochondria adapt to the changing needs of a cell.

Mitochondria are highly dynamic organelles that can adapt to the changing needs of a cell in a number of ways. For example, they can change their location by moving to areas of the cell that require more energy, such as near the nucleus or the cell membrane. They can also change their internal structure, such as by forming more or fewer cristae. Additionally, mitochondria can change their number by either fissioning and dividing into two new mitochondria or merging with other mitochondria. Likewise, mitochondria can also change their shape in response to the demands of the cell. Finally, mitochondria are able to carry out glycolysis, which is the breakdown of glucose to produce energy. This ability to carry out glycolysis enables the mitochondria to provide a cell with energy when energy demands are high.

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complete question:In what ways can mitochondria adapt to the changing needs of a cell?

Choose one or more:

A) They can change their location.

B) They can change their internal structure.

C) They can change their number.

D) They can change their shape.

E) They can carry out glycolysis.

Answer:

Explanation

High blood pressure can place increased pressure on the walls of the blood vessels inside the brain, increasing your chances of developing an aneurysm. Also, it forces the heart to work harder to pump blood to the rest of the body. This causes the lower left heart chamber (left ventricle) to thicken. A thickened left ventricle increases the risk of heart attack, heart failure and sudden cardiac death. Moreover, blood vessels damaged by high blood pressure can narrow, rupture or leak. High blood pressure can also cause blood clots to form in the arteries leading to the brain, blocking blood flow and potentially causing a stroke.

So the correct answer is: All of thees choices are correct.

Plant cells do not form cleavage furrows during cytokinesis because they have a cell wall that cannot be pinched inward like animal cells.

Instead, during cytokinesis in plant cells, a cell plate forms between the two daughter cells and grows outward to form a new cell wall. This process allows for the successful separation of the two daughter cells without damaging the cell wall or compromising the integrity of the plant. Therefore, cytokinesis in plant cells is accomplished through a different mechanism than in animal cells. Plant cells have a stiff cell wall, which prevents them from forming cleavage furrows during cytokinesis. Instead, they go through cytokinesis by developing a cell plate, which later develops into the new cell wall dividing the two daughter cells.

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Answer:

B.a man stands on the surface of the earth

Inhibitory proteins are encoded by genes.Examples include: GABA-A receptor,  GABA-B receptor, and glycine receptor.

Inhibitory proteins, which are encoded by genes, are essential for maintaining normal nerve cell activity. Three of the most important of these proteins are GABA-A receptor, GABA-B receptor, and glycine receptor.

GABA-A and GABA-B receptors are located on the surface of neurons and bind to the neurotransmitter GABA, which then opens chloride channels and reduces neuronal excitability.

Glycine receptors are found throughout the central nervous system and also bind to glycine, allowing chloride channels to open and decrease neuronal excitability. By controlling the activity of neurons through these inhibitory proteins, the nervous system is able to maintain a balanced and reliable functioning.

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The renewable energy sources are not limited and does not produce carbon dioxide. However the hydroelectric dams may damage the ecosystems.

Renewable energy sources are sources which are unlimited and nature genuine sources of energy . Solar energy, wind energy, hydroelectric energy etc. are renewable sources. Whereas, non- renewable sources are limited in supply and causes natural pollution.

The advantages of renewable energy sources are, they do not produce any polluting gases like carbon -dioxide and not limited in supply. Less expensive than alternatives.

Disadvantages : Some resources cannot be used in all regions, hydroelectric dams may damage ecosystems.

Advantages of non-renewable sources are, they can be replaced in short period of time .

Disadvantages: Produce carbon dioxide on burning, limited in supply.

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The cell membrane is not a solid structure. It is made of millions of smaller molecules that create a flexible and porous container.

Explanation:

Answer:

The cell bodies of the sensory neurons are located in the dorsal ganglia of the spinal cord. This sensory information travels along afferent nerve fibers in an afferent or sensory nerve, to the brain via the spinal cord.

Explanation:

Answer:

shorter and higher

Explanation:

UV  is further along in the EM spectrum so has a higher frequency and shorter wavelengths than visible light.

Answer:

The colors you see in flowers come from the DNA of a plant. Genes in a plant's DNA direct cells to produce pigments of various colors. When a flower is red, for instance, it means that the cells in the petals have produced a pigment that absorbs all colors of light but red.

Explanation:

Dominant refers to the relationship between two versions of a gene. Individuals receive two versions of each gene, known as alleles, from each parent. If the alleles of a gene are different, one allele will be expressed; it is the dominant gene. The effect of the other allele, called recessive, is masked.

Each carbon is bonded with two atoms of hydrogen: Saturated fatty acid.

- Oleic acid: Monounsaturated fatty acid.

- Double bond occurs at only one point in the carbon chain: Monounsaturated fatty acid.

- Alpha-Linolenic acid: Polyunsaturated fatty acid.

- Contains more than one double bond: Polyunsaturated fatty acid.

- Stearic acid: Saturated fatty acid.

Saturated fatty acids have each carbon atom in the carbon chain bonded to two hydrogen atoms, meaning there are no double bonds present. Therefore, the phrase "Each carbon is bonded with two atoms of hydrogen" describes a saturated fatty acid.

Oleic acid is a monounsaturated fatty acid because it has one double bond occurring at a specific point in the carbon chain. The phrase "Double bond occurs at only one point in the carbon chain" accurately describes oleic acid.

Alpha-Linolenic acid is a polyunsaturated fatty acid because it contains more than one double bond. The phrase "Contains more than one double bond" correctly describes alpha-Linolenic acid.

Stearic acid, on the other hand, is a saturated fatty acid because it lacks any double bonds. Therefore, the phrase "Contains more than one double bond" does not apply to stearic acid.

By identifying the presence or absence of double bonds, we can categorize the given fatty acids as saturated, monounsaturated, or polyunsaturated.

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Answer:

True

Explanation:

Answer: true

Explanation:

Examples of how farmers can prevent topsoil erosion include the following:

a. Pound the into clay using an earth compaction.

b. Carve steep hillsides into flat steps.

This is defined as the process in which the uppermost layer of the soil is moved and transported to other areas through agents such as wind or water.

Topsoil erosion is common in areas with a steep slope and the process of plowing also increases the risks because it deals with loosening if the soil thereby making it easier for wind or water to carry it. This is therefore the reason why option C and D was chosen.

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Answer:

B and D are the answers!!

Explanation:

I just got it right on quiz, I hope this helped!!!!

The Atlantic ocean per year is growing per year at the rate of centimeters and this is because of the  volcanic activities that is taking place along the mid ocean ridge. Pacific ocean is shrinking 2 to 3 Cm.

What is the number of the oceans on Earth ?

The number of oceans on the planet is 7.

When the tectonic plates of the sea floor is getting split at that time is creating a new oceanic crust that is the main reason of the spread of the oceans mentioned in the question.

While the Pacific ocean is shrinking continuously but the Atlantic ocean is continuously expanding. There will be a time when the Europe and the North America will be joined together through the chain of mountains.

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Answer:

the answer is B the temperature of each container

The classification of epithelia is based on the shape of cells at the basal and apical surfaces, as well as the number of cell layers.

The classification of epithelia is based on multiple criteria, including the shape of cells at basal surfaces, shape of cells at apical surfaces, and the number of cell layers.

The shape of cells at the basal surface refers to the overall shape of the cells at the bottom layer, which can be squamous (flattened), cuboidal (cube-shaped), or columnar (elongated).

The shape of cells at the apical surface refers to the shape of cells at the top layer, which can also be squamous, cuboidal, or columnar.

The number of cell layers can vary, ranging from a single layer (simple epithelium) to multiple layers (stratified epithelium). These criteria help classify and differentiate different types of epithelial tissues found throughout the body.

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The criteria used to classify epithelia include the shape of cells at the basal surface, the shape of cells at the apical surface, and the number of cell layers.

Epithelial tissues are classified based on specific characteristics that help distinguish different types of epithelia. The criteria used for classification are as follows:

1. Shape of cells at the basal surface: This criterion considers the shape of cells at the bottom layer of the epithelium, which is in contact with the underlying basement membrane. The basal cells may be squamous, cuboidal, or columnar in shape.

2. Shape of cells at the apical surface: The shape of cells at the top or free surface of the epithelium is also taken into account. Epithelial cells can exhibit squamous, cuboidal, columnar, or specialized shapes based on their functional requirements.

3. Number of cell layers: The number of layers of cells in the epithelium is another crucial criterion for classification. Epithelia can be classified as simple if they consist of a single layer of cells, or stratified if they have multiple layers of cells. Additionally, there are pseudostratified epithelia, which appear stratified but consist of a single layer of cells.

By considering these criteria, epithelial tissues can be classified into various types, such as simple squamous epithelium, stratified cuboidal epithelium, or pseudostratified columnar epithelium. Understanding the classification of epithelia aids in identifying their structural characteristics and inferring their specific functions within different organs and tissues of the body.

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The distributions of the random variables in the given scenarios are (a) binomial for the water lizards and (b) Poisson for the health center visits. The probabilities can be calculated using the respective formulas for the corresponding distributions.

(a) The distribution of the random variable X, which counts the number of water lizards out of the 25 selected with webbed feet, follows a binomial distribution.

This is because each lizard can be considered as a Bernoulli trial (success: possessing webbed feet, failure: not possessing webbed feet) with a probability of success (p) equal to 61% or 0.61, and the trials are independent.

(b) To compute the probability that exactly 17 of the 25 selected water lizards have webbed feet, we can use the binomial probability formula.

The probability mass function (PMF) for the binomial distribution is given by P(X = k) = C(n, k) * p^k * (1-p)^(n-k), where C(n, k) represents the number of combinations of n items taken k at a time. Plugging in the values, we have P(X = 17) = C(25, 17) * 0.61^17 * (1-0.61)^(25-17).

(c) To compute the probability that at least 17 of the 25 selected water lizards have webbed feet, we need to calculate the cumulative probability from 17 to 25. This can be done by summing up the probabilities for each value of X from 17 to 25: P(X ≥ 17) = P(X = 17) + P(X = 18) + ... + P(X = 25).

(d) The mean (μ) and standard deviation (σ) for the number of water lizards out of 25 who have webbed feet can be calculated using the formulas for the binomial distribution.

The mean is given by μ = n * p, where n is the number of trials (25) and p is the probability of success (0.61). The standard deviation is given by σ = sqrt(n * p * (1-p)).

Moving on to the second scenario:

(a) The distribution of the random variable X, which counts the number of patients that visit the health center during a randomly selected week, follows a Poisson distribution.

This is because the number of patients per week can be modeled as a Poisson process, where events (patient visits) occur independently and at a constant average rate (300 patients per week).

(b) To compute the probability that exactly 310 patients visit the health center during a randomly selected week, we can use the Poisson probability formula.

The probability mass function (PMF) for the Poisson distribution is given by P(X = k) = (e^(-λ) * λ^k) / k!, where λ is the average rate of the Poisson process (300 patients per week) and k is the number of events we are interested in (310 patients).

(c) To compute the probability that more than 280 patients visit the health center during a randomly selected week, we need to calculate the cumulative probability from 280 to infinity. This can be done by summing up the probabilities for each value of X from 280 to infinity: P(X > 280) = P(X = 281) + P(X = 282) + ... + P(X = ∞).

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The updating function that describes the situation is as follows: b_{t+1}=4b_t - 3 where b_t is the number of bacteria at hour t, measured in millions.

This function considers that the population of bacteria quadruples every hour but 3 million bacteria are removed after reproduction each hour to be converted into valuable biological by-products.

To put this function in slope-intercept form, we need to solve for b_{t+1}:b_{t+1}=4b_t - 3b_{t+1}+3=4b_t

This equation has a slope of 4 and a y-intercept of 3.

Therefore, the slope-intercept form of the updating function is:b_{t+1}=4b_t + 3

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Answer:

d.None of the above

Explanation:

Vestigial structures are anatomical feature or behavior that no longer seems to have a purpose in the current form of an organism of the given species. Often, these vestigial structures were organs that performed some important function in the organism at one point in the past. Which means these need to have an important function.