Does genetic drift cause alleles to be lost?

Answer:

1.First raindrops will come in contact with rooftops, treetops, after that it will come in contact with thigs like roads, and grass.

2. Yes sfter it makes first contact it will pool in the place until it evaporates. However, the raindrops which have come in contact with the ground will definetely be soaked up. Plant can use water to produce their food and grow. Animals can use the water for drinking and cleaning themselves.

Explanation:

❤️I hope this helps you gurl

The minimum number of people required for the group rate to be a better deal depends on the specific pricing and discounts offered by the party venue or service.

To determine the minimum number of people needed for the group rate to be a better deal, you would need to know the individual rate per person and the discounted group rate. Once you have this information, you can compare the costs to find the point at which the group rate becomes more cost-effective.
1. Obtain the individual rate (IR) and group rate (GR).
2. Determine the price per person for the group rate (GRPP).
3. Calculate the difference in price between the individual rate and the group rate per person (Difference = IR - GRPP).
4. Divide the total group rate by the difference in price to find the minimum number of attendees (Minimum Attendees = GR / Difference).

Keep in mind that this calculation is based on the specific pricing and discounts provided by the party venue or service, and the minimum number of people may vary accordingly.

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The actual diameter of the nuclei is 10.95 μm and the magnification is 739.

(a) To calculate the actual mean diameter of the nuclei in HEK 293T cells in µm,

10 mm / 7.4 μm = x mm / 8.1 μ = 10.95 mm

Therefore, the actual mean diameter of the nuclei in HEK 293T cells is 10.95 μm.

(b) We know from part (a) that the actual mean diameter of the nuclei is 10.95 μm, and we can estimate the mean diameter of the nuclei in the image to be 8.1 mm.

Magnification = (apparent size / actual size)

Thus, the apparent size is 8.1 mm, and the actual size is 10.95 μm. Converting the actual size to mm, we get:

10.95 μm = 0.01095 mm

Substituting these values into the formula, we get:

Magnification = (8.1 mm / 0.01095 mm) = 739

Therefore, the magnification of the image is 739 (rounded to the nearest integer).

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A mutation in a gene that leads to permanent binding of cGMP to cGMP-gated channels would result in a photoreceptor that is always depolarized and unresponsive to light.

In normal photoreceptor cells, light stimulation causes a decrease in cGMP levels, leading to the closure of cGMP-gated channels and hyperpolarization of the cell. This hyperpolarization results in a decrease in neurotransmitter release, which is the basis of signal transmission to the brain. However, in the scenario of a mutation where cGMP-gated channels are constantly bound to cGMP, the channels would remain open, allowing a continuous influx of cations and keeping the cell depolarized. This sustained depolarization would render the photoreceptor unresponsive to further light stimuli and unable to transmit visual signals effectively.

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Answer:

nitrogen and h20

Explanation:

protons:7

neutrons: 7

valence electrons: 5

atoms:hydrogen and oxygen

# of each type: H 2  O 1

atomic mass: H 1.00794   O 15.9994

this is all found on the periodic table btw

The degree in which a star appears to move in one hour is 15° and is denoted as option C.

This is referred to as the circular movement of an object around a central axis such as that of the earth which rotates on its axis once a day.

Since the earth rotation takes about  23 hours and 56 minutes and is at an angle of  361° then we can calculate the per hour by the following below:

Since 24 hours = 1 day

Then 361°/24 = 15° then the number of degrees will a star have appeared to move in one hour.

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The organelle that might be affected immediately by a poison if you feel its effects is the mitochondria. The mitochondria are known as the powerhouses of the cell.

The mitochondria are known as the powerhouses of the cell because they are responsible for generating energy in the form of ATP through cellular respiration. They play a vital role in various metabolic processes, including breaking down nutrients and producing energy. If you are poisoned, certain toxins can disrupt the functioning of the mitochondria, leading to a rapid impact on your body.

Since mitochondria are involved in energy production, any disturbance in their function can have immediate consequences, such as a decrease in energy levels or the impairment of essential cellular processes. These effects can manifest quickly and potentially cause severe symptoms or even organ failure depending on the toxicity of the poison. Therefore, the mitochondria are the organelles most likely to be affected immediately by poison if you experience its effects.

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Answer:

True.

Explanation:

The cerebral arterial circle, also known as the circle of Willis, is an arterial anastomosis located at the base of the brain. It is formed by the joining of several major arteries, including the two internal carotid arteries and the basilar artery. This arterial circle provides collateral circulation to the brain, allowing for multiple pathways for blood flow and serving as a protective mechanism in case of occlusion or blockage of one of the arteries supplying the brain.

Answer:

The answer is Anaphase I separates homologous chromosomes and anaphase II separates sister chromatids into daughter cells.

Meiosis is a cell division which results in the reduction of chromosome number by half - from diploid to haploid - in daughter cells. It consists of meiosis I and meiosis II. Meiosis I produces two haploid cells. Meiosis II is analogous to mitosis, so in total, meiosis results in four haploid cells. So, in meiosis, there are two anaphases - the anaphase I in meiosis I and the anaphase II in meiosis II.

In anaphase I, the sister chromatids separate from each other to the opposite sides of the cells. In meiosis I there are 46 chromosomes in duplicate, which are present as pairs of sister chromatids. In anaphase of meiosis II, since the cell is haploid, there are 23 chromosomes in duplicate, which are present as sister chromatids.

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The answer to the multiple-choice question regarding the environmental impact of fish farms is Aquaculture enclosures can harbor parasites that can negatively affect wild populations that breed in estuaries so that the correct answer is option (c).

Fish farms, also known as aquaculture, have both positive and negative impacts on the environment. While option A and option B highlight potential benefits of aquaculture, option C addresses a significant concern related to the industry. Fish farms often use enclosures or nets to confine fish in coastal waters or estuaries. These enclosures can harbor parasites that can infect the farmed fish. If these parasites escape or are released into the surrounding environment, they can pose a risk to wild fish populations that breed in estuaries. The presence of parasites from aquaculture can negatively affect the health and survival of wild fish, potentially impacting their population size.

It is crucial to consider the potential ecological consequences of aquaculture to ensure sustainable practices. Efforts to minimize the escape of cultivated fish and the spread of parasites are important for maintaining the health and integrity of wild fish populations in coastal waters and estuaries.

In summary, option C correctly highlights the concern that aquaculture enclosures can harbor parasites that can negatively affect wild fish populations breeding in estuaries. It is essential to manage and mitigate the potential environmental impacts of fish farms to ensure the long-term sustainability of both cultivated and wild fish populations.

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Answer:

To survive

Explanation:

Without water, we wouldn't have organisms such as fish. We also need it to break down food molecules or generate energy during the respiration process.

True. In a cell, RNA molecules can leave the nucleus, while DNA cannot.

This is because the nucleus is surrounded by a double membrane called the nuclear envelope, which contains nuclear pores. RNA, specifically messenger RNA (mRNA), is synthesized from the DNA template within the nucleus and then transported through these pores to the cytoplasm. Once in the cytoplasm, mRNA is used for protein synthesis during the process of translation. DNA, being larger and structurally more complex, remains within the nucleus to ensure that genetic information is protected and preserved.

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Answer:

65% is correct

Explantion:

Took a quiz and its correct answer

Answer:

65

Explanation:

The two types of encapsulated nerve endings responsible for detecting light touch and texture are A) Tactile (Meissner) corpuscles and B) Lamellar (Pacinian) corpuscles.

Tactile (Meissner) corpuscles are found primarily in the dermal papillae of hairless skin, such as the fingertips, eyelids, and lips. They are sensitive to light touch and play a crucial role in detecting low-frequency vibrations, contributing to our ability to discern fine textures. Meissner corpuscles rapidly adapt to changes in stimuli, allowing them to detect the initial contact and any movement across the skin surface.

Lamellar (Pacinian) corpuscles are located deeper within the dermis and subcutaneous tissue, as well as in some internal organs. They are responsible for detecting high-frequency vibrations and pressure changes, enabling us to sense deep pressure and rapid touch. Pacinian corpuscles also exhibit rapid adaptation, allowing them to respond to changes in pressure and vibration effectively.

Both Tactile (Meissner) and Lamellar (Pacinian) corpuscles (Option A and B) work together to provide us with a sophisticated sense of touch, allowing us to experience a wide range of tactile sensations, including the perception of texture and light touch.

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Answer: 50%

Explanation:

for any questions like this you’re gonna wanna make a punit square and then count how many of each trait you have and calculate a percent for example there were two tall and two short so it’s 50/50

Answer: we can not see the choices

Explanation:

Answer:

mating rituals

Explanation:

i got it correct

Mitochondria are cellular organelles that are involved in cellular respiration, which generates adenosine triphosphate (ATP).

ATP is responsible for the body's energy production, which is required for different metabolic functions. A lack of mitochondria would result in a significant impact on the body's metabolic processes.If all your mitochondria were destroyed, you would have much less ATP available to think, move muscles, etc. Metabolically, ATP is essential for the body's metabolic activities. ATP is produced via oxidative phosphorylation, which occurs in the mitochondria. Hence, if the mitochondria are destroyed, the body cannot produce ATP via oxidative phosphorylation, leading to an insufficient ATP supply. As a result, the body's metabolic processes will significantly slow down or stop.
Additionally, you would have much less oxygen available to think, move muscles, etc. Mitochondria are responsible for oxygen utilization in cellular respiration. If the mitochondria are destroyed, oxygen is not effectively used. Hence, less oxygen would be available to think, move muscles, etc.
Furthermore, you would have much less glucose available to think, move muscles, etc. Mitochondria are involved in the process of breaking down glucose during cellular respiration to produce ATP. If mitochondria are destroyed, glucose breakdown would be significantly reduced, leading to lower levels of ATP production. This would result in a lack of glucose available for the body's metabolic activities.
Therefore, a lack of mitochondria would have a considerable impact on the body's metabolic processes, leading to a shortage of ATP, oxygen, and glucose supply.

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Polar bear living on the ice sea.

Density is a physical property and the physical properties for the element platinum would be that platinum is silvery, metallic metal and very unreactive.

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Hashimoto's thyroiditis is an autoimmune disorder that targets the thyroid gland. It is more commonly found in women than in men and can show juvenile onset.  All of the answers are correct.

Hashimoto's thyroiditis is an autoimmune disorder that targets the thyroid gland. It is more commonly found in women than in men and can show juvenile onset. The disease is primarily mediated by T-cells and can lead to hypothyroidism. All of the answers are correct.
- Hashimoto's thyroiditis targets the thyroid, which is correct.
- It is actually more common in women than in men.
- It can show juvenile onset but is more frequently diagnosed in middle-aged individuals.
- The disease is primarily T-cell mediated, involving the immune system attacking the thyroid gland.
- Hashimoto's thyroiditis leads to hypothyroidism due to the damage to the thyroid gland.

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Answer:

Explanation:

1. mile - 1609 meters

2. astronomical unit -distance from earth to sun - 93 million miles

3. light-year - eaquivalent to the distance that light travels in one year (65k x larger than a astronomical unit )

4. parsec - 3.26 light years

Answer:

Oak trees is correct!

Answer:

c.

Explanation:

Answer:

The Purple Sea Urchin obtains oxygen through diffusion only the diffusion of oxygen into the organism. Also, oxygen diffuses from the canals into the rest of the body and carbon dioxide diffuses back into the canals to be released.

Explanation:

:)

The Purple Sea Urchin obtains oxygen through diffusion only the diffusion of oxygen into the organism. Also, oxygen diffuses from the canals into the rest of the body and carbon dioxide diffuses back into the canals to be released.

The best example of a hypothesis leading to new experimental methods as the Thomas Hunt Morgan continued the genetic research of Gregor Mendel, but Morgan used fruit flies.

The best example of a hypothesis leading to new experimental methods is that the Thomas Hunt Morgan continued the genetic research of Gregor Mendel, but Morgan used fruit flies.

Through Thomas Hunt Morgan's fruit fly experiments, he was able to discover and notice the inheritance of specific chromosomes. This experiment gave Mendel a great opportunity to publicize his idea of ​​studying humans.

Therefore, The Purple Sea Urchin obtains oxygen through diffusion only the diffusion of oxygen into the organism. Also, oxygen diffuses from the canals into the rest of the body and carbon dioxide diffuses back into the canals to be released.

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Answer:

The Earth has different compositional and mechanical layers. Compositional layers are determined by their components, while mechanical layers are determined by their physical properties. The outermost solid layer of a rocky planet or natural satellite. The Earth has an outer core (liquid) and an inner core (solid).

Explanation:

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The pressure at its highest in arteries during ventricular contraction is called systolic blood pressure.

An artery is a blood vessel that carries oxygenated blood away from the heart to the body's tissues and organs. Arteries are a vital component of the circulatory system, which is responsible for transporting blood throughout the body. Arteries are thick-walled and have a muscular and elastic structure, allowing them to withstand the high pressure of blood pumped by the heart. As they branch out from the heart, they become smaller and eventually divide into smaller vessels called arterioles, which then lead to even smaller capillaries where oxygen and nutrients are exchanged with the body's tissues.

Here,

Systolic blood pressure is the pressure in the arteries when the heart contracts and pumps blood into the circulatory system. It is measured as the first number in a blood pressure reading and is typically around 120 mmHg in healthy adults. The normal range for systolic blood pressure is considered to be less than 120 mmHg.

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Answer:

any equation in the form of

ax+by+c=0

where a, b, c are constant numbers and x, y are variables

also why asking in biology

As compared to its surroundings, the concentration of solutes is low inside a cell. So, the cell is in hypertonic solution. A particular solute in this cell uses energy for its transport from the cell to its surroundings. This type of transport is known as Active transport.

A hypertonic solution is the one where the concentration of solutes is more than the intracellular solute concentration. Therefore, the movement of water from inside of the cell to the outside. This causes the shrinkage of cell.

Active transport uses some form of energy to transport the molecules against their concentration gradient. This energy can be direct from ATP, called primary active transport. Or due to the coupled downhill transport of some other molecule, called secondary active transport.

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Answer:

B= lipids

Explanation: