A) For the additive model, calculate the additive genetic variance if fA = 0.5 and α = 2.

B) For the general model with the same parameters as in the previous question and with dominance deviation of 1, calculate the additive genetic variance.

C) For a two-locus model, with the same parameters as in the previous question for both loci, what is the additive genetic variance?

Crawl space

To protect against termites and to provide ventilation, a crawl space is built beneath the home.

Similar to a basement, a crawl space has vents that let outside air in. There are some crawl spaces that are full height, like a basement, while there are others that are only two feet tall or less, requiring you to crawl on your belly.

The ability to more readily access the systems, such as the wiring, plumbing, gas hookups, and ventilation, is the main advantage of a crawl space over a concrete slab foundation.

At the top of the foundation wall, there are many air vents for ventilated crawl areas. In order to allow unrestricted movement of outside air throughout the room, the vents are positioned across from one another.

Crawl spaces are also the preferred type of foundation in regions where termites or excessive moisture damage the earth.

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Regions of the brain where neural activity is momentarily relatively high are characterized by increased regional blood flow.

Аlthough the humаn brаin аccounts for only аbout 2% of the body weight, it consumes neаrly 20% of the oxygen we extrаct from the аir we breаthe. This dependence of the brаin on oxygen is highlighted by the fаct thаt fаilure of oxygen delivery to the brаin, usuаlly the result of а stoppаge of the heаrt, results in unconsciousness within seconds. Аn exаminаtion of the relаtionship between oxygen delivery to the brаin аnd flowing blood regionаlly within the highlights the nаture of this dependency.

The signаl used by PET to mаp chаnges in neurаl аctivity in the humаn brаin is bаsed on locаl chаnges in blood flow). Increаsed neurаl аctivity in а locаl brаin region increаses blood flow in thаt region.

Your question is incomplete, but most probably your full options were

A. increased regional blood flow

B. decreased cerebrospinal fluid production

C. a high degree of myelination

D. greater concentrations of proteins

E. postsynaptic depression

Thus, the correct answer is A.

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Gametes from two plant species combine and produce a haploid zygote, and that zygote develops into a haploid, hybrid plant that is sterile. The hybrid plant is sterile because meiosis cannot occur and the cells do not contain homologous chromosomes. Hence, the correct options are a and c. If an organism has a soft body, it is less likely to be fossilized because the body breaks down before it can be preserved. Competition occurs because organisms typically produce too many offspring, and resources are limited. This means that not all of the offspring will be able to survive and reproduce. As a result, the offspring must compete for resources such as food, water, and mates. Hence, option d is the correct answer.

Gametes from two plant species combine and produce a haploid zygote, and that zygote develops into a haploid, hybrid plant that is sterile. The hybrid plant is sterile because meiosis cannot occur and the cells do not contain homologous chromosomes. Hence, the correct options are a and c.

Mitosis and the plant's ability to grow is not affected by sterility. Sterility, on the other hand, means that the plant cannot produce any reproductive cells (like gametes), making it unable to reproduce. Therefore, option b and option d are incorrect. Additionally, the hybrid plant's sterility is caused by an odd number of chromosomes, which results in the improper separation of chromosomes during meiosis.

Body characteristics affect the likelihood of fossilization. A hard shell is not easily crushed and decomposes slowly, which allows for better fossilization of the organism. As a result, option b is correct and options a and c are incorrect. If an organism has a hard shell, it is more likely to form a fossil.

If an organism has a soft body, it is less likely to be fossilized because the body breaks down before it can be preserved. Competition occurs because organisms typically produce too many offspring, and resources are limited. This means that not all of the offspring will be able to survive and reproduce. As a result, the offspring must compete for resources such as food, water, and mates. Hence, option d is the correct answer.

Females choosing among possible mates or males defending their territories are examples of intraspecific competition, which is a type of competition that occurs within a species. However, the question is asking why competition occurs in general, and the answer is that resources are limited and organisms produce too many offspring. Therefore, options a, b, and c are incorrect.

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The functional unit of the kidneys is called the Nephron, it is in this structure where the plasma is filtered out, and the urine is formed.

The nephron is formed by the renal corpuscle, called the Bowman's capsule, is in this structure where the filtration of plasma occurs, and a long renal tubule, that can be separated into different portions called, the proximal convoluted tubule, that connects with the Bowman's capsule, then the loop of Henle, is in this portion where urine is mostly formed by exchange of ions with the Kidney's circulatory system, then it connects with the distal convoluted tubule.

Then the distant convoluted tubule connects with the collector tubule that collects the urine produced in all nephrons and leads it outside the kidneys into the ureters.

So, the first step of urine formation is the plasma filtration that occurs on the Bowman's capsule, the correct option is d. Nephron capsule.

Answer:

The answer is (1), flea saliva may stimulate an immune response in cats and dogs.

Explanation:

An allergic reaction is an immune response.

Answer:

The answer is option A.

Endocrine system

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An example for the Paleozoic supercontinent ice cap melted is plants dying off increased the greenhouse effect. The correct option is C.

The Paleozoic Era, which lasted 541 million to 251.9 million years, was a period of tremendous change on Earth. With the breakup of one landmass and the formation of another, the era began.

Plants became widely distributed. Then the first vertebrate animals arrived on the scene.

Thus, the correct option is C. Plants dying off increased the greenhouse effect.

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The property of water which best describes how it is able to transport molecules from one place to another is cohesion.

Water is the most important substance found on the planet, and all life forms depend on it. Water is an excellent solvent, capable of dissolving a wide range of substances, and it is also an excellent transport medium. Water is a liquid at ambient temperature and pressure on Earth, making it an essential medium for many biochemical reactions. Water's ability to transport molecules from one location to another is determined by its chemical and physical characteristics, which are determined by its molecular structure.

Water's cohesive nature is one of the properties that allow it to transport molecules from one location to another. Cohesion is the tendency of water molecules to stick together due to hydrogen bonding. This feature allows water to form a thin, cohesive film on the surface of objects such as leaves and the human body, which helps it adhere to surfaces and move as a unit. When water molecules stick together due to cohesion, they can transport other molecules along with them, which is essential for many biochemical reactions and for the proper functioning of living organisms.

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Answer:

Microevolution is the change in allele frequencies that occurs over time within a population. This change is due to five different processes: mutation, selection (natural and artificial), gene flow, gene migration and genetic drift.

Explanation:

Answer:

One type of person the dog trainer discusses is the "alpha" or dominant person. The advantage of this type of person is that they can establish themselves as the leader of the pack and effectively train their dog. However, the disadvantage is that this approach can sometimes be too forceful and intimidating for the dog, leading to fear and anxiety.

Another type of person the dog trainer discusses is the "permissive" or passive person. The advantage of this type of person is that they are often very patient and gentle with their dog, creating a relaxed and comfortable environment. However, the disadvantage is that the dog may not respect them as a leader and may struggle to follow commands and behave appropriately.

The bison population will grow slower than before due to the increased death rate of adults from the new disease, which will limit the population's size and reproductive potential.

What is bison population?

The carrying capacity of the bison population will also be lower than before due to the disease's impact on adult bison, further limiting population growth.

If a new disease emerges in the bison population, infecting and increasing the death rate of adult bison, the population dynamics of the herd will change in the future. The carrying capacity of the bison population will be lower than before, because the disease reduces the number of adults who can reproduce, and therefore limits the overall size of the population.

Moreover, the birth rate of the bison population may not necessarily be higher than before because the disease could also affect the reproductive ability of the bison, and even if it does not directly impact reproduction, the population may be limited by the lower number of adult bison that can mate.

As a result, the bison population will grow slower than before because of the increased death rate of adults due to the disease. In some cases, the population may even decline if the death rate exceeds the birth rate. Therefore, the correct answer is that the bison population will grow slower than before.

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Near the equator, rising air is associated with a pressure zone known as the equatorial low.

What is equator?

Equator: A large circle that circles the planet evenly in all directions and that is perpendicular to the axis of the planet. The geographic Equator, also known as the terrestrial Equator, is the imaginary line on the surface of the Earth from which latitude is calculated; it is the line at 0° latitude. It separates the Earth into the Northern and Southern hemispheres.

A pressure region known as the equatorial low is connected to rising air close to the equator. This type of zone experiences rainy weather and weak wind movement. One of the hottest places in the planet is there. A low-pressure area is also produced by it. Equatorial lows and doldrums are some names for it.

Hence Equatorial low is the appropriate answers.

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Answer:

There are three parts to this theory. The first part states that all organisms are made of cells. The second part states that cells are the basic units of life.

Explanation:

These parts were based on a conclusion made by Schwann and Matthias Schleiden in 1838, after comparing their observations of plant and animal cells.

Answer:

Theodor Schwann

The first part states that all organisms are made of cells. The second part states that cells are the basic units of life.

Explanation:

(A). Eventually, they become separate species outcome can occur to two segments of a population if they are geographically isolated is correct option.

Speciation is the process of creating a new species from an existing one. Speciation is the process by which a single species divides into two or more distinct species. Reproductive isolation can lead to speciation. The divided species can no longer interbreed because of reproductive isolation. This resulted in the adaptive separation into two species due to variations in mating, sterility, or environmental barriers.

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The statement that exemplifies a pseudoscience is a claim that pretends to be scientific but has not actually been tested (option A).

Pseudoscience is any body of knowledge that purports to be scientific or to be supported by science but which fails to comply with the scientific method.

This fact could mean that they were disproved scientifically, can't be tested scientifically, or lack evidence to support them.

Examples of pseudoscience are as follows:

Therefore, the statement that exemplifies a pseudoscience is a claim that pretends to be scientific but has not actually been tested.

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The study of biodiversity is important in the Anthropocene because it provides information about the species that go extinct every one thousand years.

Extinction happens when species are faded because of environmental forces consisting of habitat fragmentation, weather trade, natural disaster, over-exploitation by using people, and pollution, or because of evolutionary modifications in their members (genetic inbreeding, poor reproduction, decline in population numbers).

An extinction occasion is a giant and fast decrease in the biodiversity in the world. Such an occasion is recognized via a pointy change inside the diversity and abundance of multicellular organisms.

The main cutting-edge causes of extinction are the loss and degradation of habitat (Deforestation), over-exploitation, invasive species, climate exchange, and nitrogen pollutants.

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Answer: if you eat it you would be eating radiation

Explanation: Common sense

Answer:

Recessive

Explanation:

because, if the first generation is purple flowers that means the purple flower Dominant, Which makes the white flower Recessive.

It is an facilitated kind of transportation.

Although many polar molecules, including glucose, can pass through cell membranes, ions and the majority of polar molecules cannot. Certain transmembrane proteins function as transporters to allow these compounds to traverse membranes.

Response and justification A transport protein is a type of membrane protein that is involved in moving ions and polar molecules across the membrane. Protein pumps and channel proteins are two different classes of transport proteins that carry out this function.

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Answer:

Water molecules attracted to other water molecules (because of their polarity and hydrogen bonds)

Explanation:

Answer: B (Estivation)

Answer:

A greenhouse gas (sometimes abbreviated GHG) is a gas that absorbs and emits radiant energy within the thermal infrared range. Greenhouse gases cause the greenhouse effect[1] on planets. Without greenhouse gases, the average temperature of Earth's surface would be about −18 °C (0 °F),[2] rather than the present average of 15 °C (59 °F).[3][4][5] The atmospheres of Venus, Mars and Titan also contain greenhouse gases.

Explanation:

Answer:

It is a case of human niche construction

Explanation:

Lactase is an enzyme of mammals which is required to digest lactose. In humans (like in other mammals), lactase activity decreases during mid-childhood; although there are individuals which are still capable of producing this enzyme even during adult life, a trait known as 'lactase persistence'.  Different mutations in the coding region of the lactase gene have been associated with lactase persistence in European, African and Asian populations. On the other hand, the niche construction theory states that the organisms, through their activities and choices, actively modify their own local environment by introducing novel selection pressures. Some examples of niche construction include, among others, alternation of nutrient cycling by plants or lactase persistence in humans. Lactase persistence can be defined as a case of niche construction because this trait was not only genetically inherited but also culturally transmitted through local environments shaped by ancestral populations, i.e., generated by niche construction or ecological inheritance.

Answer:

Photosynthesis converts carbon dioxide and water into oxygen and glucose. Glucose is used as food by the plant and oxygen is a by-product. Cellular respiration converts oxygen and glucose into water and carbon dioxide. Water and carbon dioxide are by- products and ATP is energy that is transformed from the process.

Explanation:

Answer:

Photosynthesis converts carbon dioxide and water into oxygen and glucose. Glucose is used as food by the plant and oxygen is a by-product. Cellular respiration converts oxygen and glucose into water and carbon dioxide. Water and carbon dioxide are by- products and ATP is energy that is transformed from the process.

Explanation:

Answer:

TO TEST SUPPLY OF WATER QUALITY OF THE LOCALITY Excessively high and low pHs can be detrimental for the use of water. High pH causes a bitter taste, and water pipes.

Alkaline water turns red litmus paper blue. Acidic water turns blue litmus paper crimson. Pure or neutral water won't modify the litmus paper's color.Therefore, it can be used to test the quality of the drinking water.

A quantity that expresses the degree to which a substance or solution is acidic or basic. On a scale that ranges from 0 to 14, pH is measured. A pH value of 7 is considered neutral on this scale, which indicates that the substance in question is neither acidic nor basic. If the pH value is lower than 7, the substance in question is more acidic, and if the pH value is higher than 7, it indicates that the substance in question is more basic.

It is recommended that you consume water that is neither overly acidic nor overly alkaline, as well as water that is both clean and pure. The Environmental Protection Agency of the United States suggests that the pH level of drinking water should fall somewhere in the range of 6.5 to 8.5. The pH reading of the vast majority of ground and surface water should fall somewhere within this range.

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Answer:

chemical weathering is more dominant in the regions where there is abundant limestone rock.

Explanation:

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The anatomic areas not seen in a transverse plane Are anterior and posterior.

The horizontal plane divides the body or part of it into upper and lower parts. The median plane is the sagittal plane through the midline of the body. Divide the body or part of it into right and left halves. The sagittal plane is the vertical line that divides the human body into left and right. The coronal plane is the vertical line that divides the human body into anterior and posterior parts.

The transverse plane, on the other hand, is the horizontal line that divides the human body into upper and lower parts. A transverse plane divides the body or part of it into upper and lower parts. Note that each of the three anatomical planes can be traversed and retains the names associated with those directions. Imagine standing at the shallow end of a pool with water about navel high.

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Answer:

Compound are substances which can be formed by chemically combining two or more elements. Mixtures are substances that are formed by physically mixing two or more substances.

Explanation: brainliest?

Answer: ethanol

Explanation: