What causes genetic drift?
O A. Selective pressure
O B. Artificial selection
O C. Random chance
O D. Sexual pressure

Answer:

first quarter and neap tide

Answer:

first quarter and neap tide

Explanation:

1) The DNA database can be key in crime solving

2) I would not sign up for the voluntary database

A comprehensive DNA database could enhance law enforcement's ability to solve crimes by providing a larger pool of potential suspects and aiding in the identification of unknown individuals. It could help prevent future crimes and bring closure to victims and their families.

Some people may be willing to participate if they believe it would contribute to public safety and the greater good. Others may prioritize their privacy and choose not to participate, concerned about the potential risks associated with the collection and use of their genetic information. I would not sign up

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Explanation:

A. Small intestine

B. Digestion

C. Because of the fluid present in our stomach.

Answer: B

Explanation:

If a person’s skin were to be replaced with scar tissue, the processes of sweating and heat generation will be compromised in homeostasis.

Homeostasis is the process by which the body maintains a fairly constant internal environment.

Homeostasis ensures that an organism adapts to changes in its immediate external or internal environment.

For example, whether the environment is cold as in winter or warm as in summer, the body maintains a fairly constant body temperature of 37 °C.

This the body does by sweating more and losing heat in hot summers, and inversely conserving heat in cold winters.

The skin is involved in the homeostasis of body temperature.

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Answer:

it's 3

Explanation:

I took biology last year

Answer:

its 3

Explanation:

Im taking the test rn

When an individual stops working out, muscles slowly lose strength.

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In order to determine the mechanism that dominates the membrane stiffness, we have to calculate the Young’s modulus of the nitride layer and the built-in tensile stress. Young's modulus, also known as the modulus of elasticity, is the ratio of stress to strain for a given material under tension or compression.

It is denoted by E and is measured in pascals (Pa).Young's modulus can be calculated using the following formula:

E = σ / ε

Where E is the Young's modulus, σ is the stress, and ε is the strain. Since the thickness of the nitride layer is 200 nm and the built-in tensile stress is 10 MPa, we can calculate the Young's modulus of the nitride layer using the following formula:

E = σ / ε = (10 × 10^6) / (200 × 10^-9) = 50 × 10^9 Pa

The plate term is given by the following formula:

k = (π^2 × E × t^3) / (12 × (1-ν^2) × a^3)

Where k is the stiffness of the membrane, E is the Young's modulus of the nitride layer, t is the thickness of the nitride layer, ν is the Poisson's ratio of the nitride layer, and a is the length of the membrane. We can calculate the plate term using the following values:

k_plate = (π^2 × 50 × 10^9 × (200 × 10^-9)^3) / (12 × (1-0.24^2) × (100 × 10^-6)^3) = 0.113 N/m

The built-in tensile stress term is given by the following formula:

k_tensile = (σ^2 × t^3) / (12 × E)

Where k is the stiffness of the membrane, σ is the built-in tensile stress, t is the thickness of the nitride layer, and E is the Young's modulus of the nitride layer. We can calculate the built-in tensile stress term using the following values:

k_tensile = (10 × 10^6)^2 × (200 × 10^-9)^3 / (12 × 50 × 10^9) = 0.333 N/m

Since the built-in tensile stress term is larger than the plate term, we can conclude that the mechanism that dominates the membrane stiffness is the built-in tensile stress term.

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Answer:

ethosuximide (Zarontin).

Explanation:

Succinimides like Zarontin use indicated for petit mal seizures, but not for tonic-clonic seizures. Depakote, Valium, and Dilantin can be effective for tonic-clonic seizures.

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Scale of the model: 1:10,000. To find the scale of the model, we need to compare the size of the model to the actual size of the red blood cell. Given that the diameter of the red blood cell is 0.008mm and the diameter of the model is 80mm, we can calculate the scale by dividing the diameter of the model by the diameter of the actual cell.

Scale = Model diameter / Actual cell diameter

Substituting the given values:

Scale = 80mm / 0.008mm

Simplifying the expression:

Scale = 10,000

Therefore, the scale of the model is 1:10,000.

1. Identify the diameter of the red blood cell: 0.008mm.

2. Identify the diameter of the model: 80mm.

3. Use the formula Scale = Model diameter / Actual cell diameter.

4. Substitute the values into the formula: Scale = 80mm / 0.008mm.

5. Simplify the expression to find the scale: Scale = 10,000.

6. The scale of the model is 1:10,000, indicating that the model is 10,000 times larger than the actual red blood cell.

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Answer:

A.

Explanation:

Because the other ones do not make sense.

The crust of the Earth moves slowly and continuously. Massive pressures drive rocks up, tilt, fold, and break them. The lowest strata become so tightly packed when enough silt has collected and settled in one location that solid rock is created.

The term "earth's crust" refers to the planet's thin, rocky outer layer, which makes up less than 1% of both its radius and volume. It is the uppermost section of the lithosphere, which is made up of the crust and the uppermost part of the mantle. These particles are separated from their source by erosion and carried to a different area by wind, water, ice, or biological activity.

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The effect of this change on this plant species is known as Extinction

What is Extinction ?

Extinction is the phrase used to describe a known species for which no known individuals are still alive. Some extinct species can only be identified by their fossilized remains. Others used to be known to humans, but they are no longer. Others were pushed to extinction as a direct result of human abuse. Although a species that has gone extinct or undergone extinction no longer contributes to the evolution of creatures, it can nevertheless be used to better understand the relationships between animals that are still alive today.

The effect of this change on this plant species is known as Extinction

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In industrial settings, pH measurements and control are essential for multiple purposes. Manufacturing facilities may employ pH monitoring and adjustment systems to ensure optimal conditions for chemical reactions, enzymatic processes, and product quality.

In the context of factories, the handling and management of pollutants are of utmost importance. Industrial facilities aim to mitigate and control the release of harmful substances into the environment.

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Answer:

Our results contrast with research conducted in protected areas that suggested human effects in the food web are primarily predator-mediated. Instead, human influence on vegetation may strengthen bottom-up predominance and weaken top-down trophic cascades in ecosystems.

Explanation:

Humans affect the different trophic levels in ecosystems on Earth through destroying it via activities such as habitat destruction, pollution etc.

This refers to all the organisms and the physical environment with which they interact.

Humans have destroyed most of the trophic level through predator mediated activities but however have increased the producers through agricultural processes.

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Answer:

I think the answer is D

Explanation:

nuclear energy relates to nucleus

electrical energy relates to electrons

chemical energy relates to the elements

A good scientist is:

Curious about the world and its mysteries, and must observe carefully.

A skiptic who demands evidence before accepting explanations.

Bias and willing to change if need be, and does not let hypothesis or personal point of view influence them,

Oppen-minded and thoughtful in proposing creative and designing experiments.

The experiment that she should perform is to observe samples of plant tissue under a microscope at high magnification. The correct option is c.

A scientific experiment to compute or investigate the cause of scientific events. It is done with variables that are both control-independent and control-dependent. A scientific experiment is a container for a hypothesis and a process.

Variables can now be the components under research or variables that affect the component. A controlled scientific experiment will be managed by the scientist, and the time and face of the experiment will be examined.

Therefore, the correct option is C. observe samples of plant tissue under a microscope at high magnification.

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Answer:

D. place individual cells in a Petri dish with food and monitor their ability to grow

Explanation:

When two species compete for resources, (b) both species will decline in fitness. This is because competition takes up energy and resources that could otherwise be used for reproduction and survival.

The better competitor may be able to survive and reproduce more successfully than the poorer competitor, but both species will be less fit than they would be if they did not compete.

Competition for resources is a zero-sum game. This means that one species' gain in resources comes at the expense of the other species' loss of resources. As a result, both species will have to expend more energy and resources to compete, which will leave them less energy and resources for reproduction and survival. This will lead to a decline in the fitness of both species.

The decline in fitness may be more pronounced in the poorer competitor, but both species will be less fit than they would be if they did not compete. For example, two species of birds competing for the same food source may have to spend more time and energy searching for food, which will leave them less time and energy for reproduction and survival. This will lead to a decline in the fitness of both species, even if the better competitor is able to survive and reproduce more successfully.

In some cases, competition for resources can lead to the extinction of one or both species. For example, two species of bacteria competing for the same antibiotic may become resistant to the antibiotic, which will make them more difficult to treat. If one of the species is unable to develop resistance, it may become extinct.

Overall, competition for resources is a negative interaction that can lead to a decline in the fitness of both species involved.

Therefore, (b) both species will decline is the correct answer.

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Complete question :

When two species compete for resources, the fitness of:

(a) both competitors will remain the same.

(b) both species will decline.

(c) only the poor competitor will decrease.

(d) only the better competitor will increase.          

Answer:

The type of biome that is made up of scattered  grasses  and small  tress and shrubs is called the savannah. The ecosystem consisting of small community of plants and animal on a large piece  of land is  is called a biome.

Because the tress are small and scattered this  enable the  grasses to thrive in the savannah. They are located in the hot and warm climate across the world with the annual rainfall of 50.79 to 127 cm  per year. This is estimated t be about 100 '' of rainfall per year .This is fall within certain months, and there may be  fire outbreaks  when the rain  stops or in droughts.

Therefore lack of moisture is the  features of the savannah. Plants and animals in this terrestrial biome must develop  adaptive features for water conservation to survive with little  exposure of the  to heat and sunlight to prevent excessive dehydration.

The plants have narrow leaves to reduce the  surface area to volume ratio exposed  for transpiration and evaporation of moisture

some have underground stem and root for storing starch and water.

Cactus is an example of plant with thick stem to conserve water ,and spikes to prevent been eaten by herbivores

The animals have good stamina to withstand dehydration, and are less  active duding the day to conserve body water, and do reduce exposure to the hot and arid environment.

Elephants has wrinkle skin to reduce water loss ,and large ears to dissipate heat.

Explanation:

Answer:

Loss of habitat and extinction.

Explanation:

Deforestation causes the destruction of beneficial plants such as medicinal plants. Due to this destruction, they loss their habitat and gradually become extinct. The extinction of these medicinal plants makes the survival of human difficult because from these medicinal plants medicine are formed which can be used for the treatment of various diseases so deforestation has adverse affect on humans.

habitat loss

extinction

direct costs 

Answer: It allows for rapid repopulation of an ecological niche.

Explanation:

Meiosis ensures that all organisms produced via sexual reproduction contain the correct number of chromosomes.

Hope it will help you

Answer:

Meiosis is the foundation of sexual reproduction, as it is the process that actually produces the gametes involved in the process, via two main sets of stages. In addition to this, it is responsible for bringing about most of the diversity (genetic recombination if you will) that is seen in offspring and makes sexual reproduction so crucial in the first place.

Cheers.

Answer:

The size of the genome cannot be deduced from the number of chromosomes.

Misconception: Human activity cannot change climate because the atmosphere and Earth itself are so big.

Correction: Human activities such as the burning of fossil fuels and deforestation is causing a significant increase in atmospheric concentrations of greenhouse gases, which are contributing to changes in global climate patterns. While the Earth's atmosphere and oceans are indeed large and complex systems, they are not invincible to human-caused climate change. The evidence shows that human activity is a major factor in the changes we are observing in global temperature, sea level, and extreme weather events.

Evidence: The Intergovernmental Panel on Climate Change (IPCC) has stated that it is "extremely likely" that human activities are the primary cause of global warming observed since the mid-20th century. This conclusion is supported by a vast body of scientific evidence, including temperature records, satellite observations, and studies of ancient climates. Climate models have also been developed that simulate observed warming and other climate changes only when they include human influences.

For instance, a study published in the journal Science in 2016 used satellite data and climate models to conclude that human-caused climate change has been a major driver of the observed warming of the Arctic region. Another study published in the journal Nature in 2018 showed that human-caused greenhouse gas emissions have caused a global increase in the frequency and severity of extreme heat waves. These and many other studies provide robust evidence that human activity is significantly changing our planet's climate.

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Answer:c

Explanation:

Answer:

at ur mom

Explanation:

Corn is used as the main energy ingredient in livestock feed and as a food factor for humans.

Answer:

option C IS THE CORRECT Evaporation  is the process in which water moves from the land to the air. Evaporation of water from the land happens directly from lakes, puddles, and other surface water.

Explanation:

i hope this will help you :)