In the following population, what would be the allelic frequency for the dominant allele? 20 homozygous recessives; 320 homozygous dominants; 160 heterozygotes.
a. .1
b. .2
c. .6
d. .7
e. .8

Answer:

it is a big question its what tye of question

Explanation:

brother i am here for point if i know answer i have been told you

Answer:cellular respiration

Explanation:

The three types of muscle are skeletal muscle, smooth muscle, and cardiac muscle.

The kind of muscle responsible for voluntary actions like walking, running, and lifting weights is known as skeletal muscle. The walls of internal organs like the stomach, intestines, and blood arteries are made of smooth muscle, also referred to as involuntary muscle.

It is in charge of involuntary motions like the digestive system's contractions that move food through the body. Cardiac muscle is located in the heart's walls and is what contracts to pump blood throughout the body. Cardiac muscle is controlled involuntarily and is not under conscious control, in contrast to skeletal and smooth muscle.

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Answer:

Loss of plant life.

Explanation:

Answer: to fast you need to train your body. to get used to not eating

Explanation:

Answer: Choice A

Explanation:

A fertilizer is used to improve plant growth.

Fertilizers are substances that are added to soil to provide essential nutrients that plants need for growth and development. Fertilizers typically contain a combination of nitrogen, phosphorus, and potassium, along with other micronutrients like calcium, magnesium, and sulfur.

The use of fertilizers has allowed for increased crop yields and improved food production, helping to support the growing global population. However, there are also consequences associated with their use.

One of the main consequences of fertilizer use is the potential for water pollution. When fertilizers are applied to fields, excess nutrients can leach into groundwater or be carried by runoff into nearby waterways.

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The key characteristic of lipids that enables them to keep unwanted substances from penetrating unwanted cell membranes is its amphipathic nature.

Cell membrane are the outer protective layer of cell that separates the components of cell from the outer environment as well as regulates the traffic that comes into or leaves the cell. It is made up of lipids, proteins, and carbohydrates.

Amphipathic nature is  dual behavior where a molecules behaves as hydrophilic as well as hydrophobic. Lipid is an example of amphipathic molecule where the head of the lipid is hydrophilic whereas the tails are hydrophobic. This nature prevents the entry of various unwanted substances into the cell.

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Biological contamination generally refers to contamination of our food or environment with microorganisms which includes bacteria, viruses, fungi, and parasites.

Biological contaminants include bacteria, viruses, animal dander and cat saliva, house dust, mites, cockroaches, and pollen. There are many sources of these pollutants. By controlling the relative humidity level in a home, the growth of some sources of biologicals can be minimized.

Biological contamination refers to the event wherein any other living organism, mostly microorganisms, contaminate a food product. Biological contamination is one of the common causes of food poisoning as well as spoilage. Biological contamination of drinking water is common in developing countries and poses a health risk, often associated with diarrheal diseases. Contamination can also be caused by heavy metals like lead,cadmium and mercury. Contamination by heavy metal in food occurs mainly through pollution of water and soil.

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Answer:

A

Explanation:

Answer:

c

Explanation:

Answer:

Osmosis is the spontaneous net movement of solvent molecules through a selectively permeable membrane into a region of higher solute concentration, in the direction that tends to equalize the solute concentrations on the two sides. The answer is b

Explanation:

During fluorescence, electrons within chlorophyll move farther from the atomic nucleus and release their energy. This occurs when chlorophyll molecules absorb light energy and become excited, causing their electrons to move to higher energy levels.

However, these excited electrons cannot remain at these high energy levels for long and eventually return to their original state, releasing excess energy as light in the process. This released light is what is observed during fluorescence. Therefore, as fluorescence occurs, the electrons within chlorophyll move away from the atomic nucleus and release their excess energy in the form of light.

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If the sea lamprey population never reproduced, it would eventually go extinct. Reproduction is essential for the survival of any species. In order to be a predator, the sea lamprey attaches itself to other fish and feeds on their body fluids. Adult sea lampreys, which are 12-24 inches long, feed entirely on other fish. They are already predators. They are parasitic in nature and have no jaws, but possess a skeleton made of cartilage. In their native ocean, they don't typically kill their hosts, but in the Great Lakes, where no co-evolutionary link exists, they act as predators and can kill up to 40 pounds of fish each over their 12-18 month feeding period. The Great Lakes Fishery Commission is working on several methods to control sea lamprey populations, including the use of a pesticide called TFM and the release of sterile male lampreys. [2][3]

References:

[1] High predation of native sea lamprey during spawning ...

[2] Great Lakes Fishery Commission - Sea Lamprey

[3] Sea Lamprey

~~~Harsha~~~

1. The results show that the salt concentrations in the habitats of the two freshwater snail populations vary throughout the day. Population 1 experiences slight fluctuations in salt concentration, with levels of 0.1 ppt in the morning and evening, and 0.0 ppt in the afternoon.

2. To determine whether the inherited adaptation of brackish water tolerance is influenced by environmental factors, scientists can conduct experiments under controlled conditions. They can expose snail populations with different levels of brackish water tolerance to varying salt concentrations and observe their survival and reproductive success.

1. The results indicate that the salt concentrations in the habitats of the two freshwater snail populations vary throughout the day. Population 1 experiences minimal changes in salt concentration, while Population 2 faces more significant fluctuations.

This suggests that brackish water adaptation may be necessary for Population 2 to survive in environments with varying levels of salinity.

By having adaptations that allow them to tolerate brackish water, these snails can withstand the fluctuating salt concentrations and inhabit different parts of the river system.

2. To determine whether the inherited adaptation of brackish water tolerance is influenced by environmental factors, further investigation is needed.

Scientists can conduct experiments where they expose both populations of snails to controlled environments with varying levels of salinity over an extended period.

By monitoring the survival and reproductive success of the snails in different salt concentrations, they can assess whether the brackish water adaptation is genetically determined or influenced by the environment.

Additionally, studying the offspring of these snails and comparing their performance in different salt conditions can provide insights into the heritability and genetic basis of the adaptation.

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Answer:

real and this is because in the microscope the glass inside is like hand lense

Karenia brevis thrive best in water temperatures between 18/ 30 how likely is it for an algal bloom to have at least a moderate impact on fort myers beach is the impact of an bloom depends variety of factors such as nutrient which if supported by these factors will have a significant impact, and if not supported by these factor the impact will not be significant.

Karenia brevis, also known as red tide, is a type of algae that thrives in warm water temperatures between 18°C and 30°C (64.4°F and 86°F). The likelihood of an algal bloom having at least a moderate impact on Fort Myers Beach depends on a variety of factors, including water temperature, nutrient availability, and weather conditions.

If the water temperature is within the optimal range for Karenia brevis growth and there are sufficient nutrients available, it is likely that an algal bloom will occur and have at least a moderate impact on Fort Myers Beach. However, if the water temperature is outside of the optimal range or there are not enough nutrients available, the likelihood of an algal bloom occurring and having a significant impact is reduced.

Weather conditions can also play a role in the likelihood of an algal bloom occurring. For example, if there are strong winds or heavy rainfall, the algae may be dispersed and have less of an impact on the beach. Overall, the likelihood of an algal bloom having at least a moderate impact on Fort Myers Beach depends on a variety of factors, including water temperature, nutrient availability, and weather conditions.

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Answer:

Mitosis is the reproduction of tissue cells. While Meiosis is the reproduction of one diploid cell into 4 haploid cells.

Explanation:

Answer:

Mitosis produces 2 daughter cells which are genetically identical to the parent cell. Each daughter cell is diploid (contains the normal number of chromosomes). This is the result of DNA replication and 1 cell division. ... Meiosis is used to produce gametes (sperm and egg cells), the cells of sexual reproduction.

Explanation:

Answer:

Evolution.

Explanation:

The unique method of locomotion in octopus has been utilized by successive generations of octopus through the process of evolution. Evolution is defined as the change in the characteristics of a species over several generations. This type of behaviour is attain by octopus in order to save itself from its predators such as shark so we can say that this unique method of movement is used by octopus to save itself from the predators leads to evolution in the octopus.

Creating a presentation involves several steps. Define your objective and determine the purpose of your presentation.

Plan your content, create an outline or storyboard to organize your ideas. Gather your materials: Collect the necessary information, data, images, and other media that will support your presentation.

Keep your slides visually appealing and easy to read. Use a consistent theme or color scheme throughout the presentation.

Rehearse your presentation to become familiar with the content and timing. Practice speaking clearly and confidently, and pay attention to your body language. Time yourself to ensure you stay within the allotted timeframe.

Make any necessary adjustments based on feedback and save your presentation in the appropriate format.

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Answer:

1)I)replacing dead cells

ii)cell division in the liver

2) in meiosis, there are 23 chromosomes

in mitosis, there are 46

Answer:

The phage will not be able to infect a bacterial host cell.

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

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

The correct order of structures that urine would pass from the kidneys as an exit to the body is:
renal pelvis - ureter - bladder - prosthetic urethra - spongy urethra - navicular fossa.
The correct order of structures that urine would pass through from the kidneys as it exits the body is as follows:

1. Renal pelvis
2. Ureter
3. Bladder
4. Prostatic urethra
5. Spongy urethra
6. Navicular fossa

In this order, urine is produced in the kidneys, flows into the renal pelvis, then travels down the ureter to the bladder for temporary storage. From the bladder, urine passes through the prostatic urethra, then the spongy urethra, and finally exits the body through the navicular fossa.

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Energy harvesting process is photosynthesis which converts sunlight into energy by plants. It provides food for herbivores and releases oxygen for respiration.

The process of energy harvesting in ecosystems is photosynthesis, which is carried out by plants and some bacteria. It is the process by which sunlight is converted into energy that can be used by organisms. Photosynthesis is the foundation of most ecosystems because it provides food for herbivores, which in turn are eaten by carnivores.

Additionally, photosynthesis releases oxygen as a byproduct, which is essential for respiration by both plants and animals. The energy harvested by photosynthesis is stored in the form of carbohydrates and other organic compounds, which are used by plants and other organisms for growth and reproduction.

In summary, photosynthesis is a vital process in ecosystems because it provides energy for life and helps maintain the balance of oxygen and carbon dioxide in the atmosphere.

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The seven major fish body forms are- fusiform, compressiform, anguilliform, filiform, depressiform, sagittiform, and globiform.

Below are the descriptions of the three body forms and how their physical characteristics are related to their  habitat and niches:Fusiform body form: This body form has a streamlined shape that allows for easy movement through the water. It is most commonly found in open-water fish, such as tuna and mackerel, that need to move quickly to catch prey and avoid predators. Its narrow shape reduces drag, which increases its swimming speed. The fusiform body form is particularly adapted for fast swimming, and it is typically found in fish that are pelagic (live in open water).

Compressiform body form: This body form is flattened from side to side, which gives the fish a ribbon-like appearance. The compressiform body form is well adapted to moving through the water by means of quick, darting movements. They are generally found in areas of shallow water or near the bottom of the sea floor, where they can quickly move to escape danger. For example, eels use the compressiform body form to move quickly through small crevices.Anguilliform body form: This body form is characterized by a long, thin shape that allows the fish to easily move through the water.

This body form is found in fish like eels, which live in narrow spaces such as burrows, rock crevices, or coral reefs. The elongated and flexible body structure of anguilliform fish enables them to move through complex environments easily.In summary, the physical characteristics of fish are related to their habitats and niches. Each of these three body forms is adapted to different environments, from open water to rocky crevices, and each is suited to a different type of swimming or movement.

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Answer:

D. Supporting

Explanation:

Ecosystem services include provisioning, regulating, culture and supporting services.

Opening of a mineral mine along a small mountain range will affect the supporting services of ecosystem because supporting services deals with soil formation, provision of habitat and nutrition cycle.

Opening of mineral mine will destroy the tosoil, landscape, forests and wildlife of mountain area which affect the supporting services such as habitat and soil formation.

Hence, the correct answer is "D. supporting".

Answer:

thx

Explanation:

Thermoelectric power plants rely on burning fossil fuels like coal and oil to generate electricity. During this process, the burning of these fuels releases a significant amount of mercury into the atmosphere in the form of gas emissions.

This mercury pollution is a major concern as it can be transported over long distances, contaminate the environment and water sources, and pose a health risk to humans and wildlife. Mercury is a potent neurotoxin that can lead to developmental and cognitive problems, particularly in infants and young children.

To address this issue, regulations have been put in place to limit the amount of mercury emissions from power plants. This includes the Mercury and Air Toxics Standards (MATS) that require coal-fired power plants to reduce their mercury emissions by 90%. Despite these regulations, mercury pollution remains a significant issue, and continued efforts are necessary to address its impacts on the environment and public health.

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