Duchene muscular dystrophy (DMD) is a sex-linked disorder.A female that is a carrier for DMD has a female child with a healthy male partner. What is the probability that the child has DMD?a. 100%b. 0%c. 50%d. 75%

Given the information about PKU and the PAH, we can evaluate the options:

A is false because it says the protein is functional in individuals with the disease.

B is more likely to be true because when the protein produced by PAH isn't functional, the phenylalanine builds up.

C is false because it says the protein isn't functional in healthy individuals.

D is false because phenylalanine is an essential amino acid, which means the body can't produce it.

Answer: Neither solid nor spotted fur would be possible

Explanation: This is because only the dominate striped fur gene is available in the gene pool (both animals have 2 dominant fur genes) therefore there is no where for a recessive gene to come from.

The wolf, like other large predators, is a key species in the functioning of ecosystems, since they regulate food chains from the top link. Now, with the excessive hunting of this great predator, there is an ecosystem imbalance because the food web where the wolf is involved would be destabilized. The absence of these carnivores can cause populations of their prey such as herbivores (moose) to increase dramatically and the vegetation of the natural area to be affected due to excessive herbivorous activity. This can cause biodiversity to be affected because the riparian forests (willows, poplars, alders) can be destabilized and therefore also the banks of the rivers. Therefore, the loss and deterioration of habitats is the main cause of biodiversity loss.

We can conclude that the correct answer is:

15. Ecosystem imbalance due to the destabilization of the food web where the wolf is involved.

16. The absence of these carnivores can cause populations of their prey such as herbivores (moose) to increase dramatically and the vegetation of the natural area to be affected due to excessive herbivorous activity. This can cause biodiversity to be affected because the riparian forests (willows, poplars, alders) can be destabilized and therefore also the banks of the rivers. Therefore, the loss and deterioration of habitats is the main cause of biodiversity loss. In fact, many scavenger species (magpies, eagles, ravens, bears) depend on wolves because they can prey on the remains of wolf prey. If there is damage to the vegetation of the natural area due to the excessive hunting of wolves, many birds would be affected, as well as beavers, amphibians, reptiles, and fish.

17. First of all, new or novel herding devices and herding methods must exist so that wolves do not get used to them and lose their natural wariness and caution. Increasing risk perception in wolves can help reduce livestock deaths caused by wolves. On the other hand, it is also possible to build pens to keep the cattle overnight in a small paddock, instead of fencing off large paddocks of many hectares. Finally, sheep and goat farmers around the world have been seen to use guard dogs to guard their livestock against carnivores and in most cases, the mere presence of the dogs seems to help keep wolves away from livestock.

Keeping a good record of the number of wolves in a natural area can be a valuable tool in resolving cattle-wolf problems. Observation records can help identify trends, problem areas, and vulnerable times of the year, helping to increase the effectiveness of preventative measures. For example, keeping good records helps identify grazing areas where predator problems repeatedly occur.

The researchers Coon and Steinberg found that parenting style contributed to intellectual performance. The correct option is d.

A parent's psychological conduct that reflects how they raise their children is known as their parenting style. Many different things, including the environment, economic situation, etc., have an impact on parenting style.

Social background is the kind of family a person comes from. It takes into account a person's upbringing, intelligence, way of life, family history, etc.

Therefore, the correct option is d. Parenting style.

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Answer:

Parenting style

Explanation:

According to the research, the correct option is Observational learning. According to social-cognitive theory, the woman's behavior is called observational learning.

It is an indirect learning process in the social-cognitive theory that involves the social transmission of behavior by observing the behavior of others.

In this sense, it involves the acquisition, by the observer, of new responses and skills incorporating new patterns of behavior or skills, as well as the rules to develop new behaviors.

Therefore, we can conclude that observational learning describes the woman's behavior since by imitating her she learns a pattern that helps to elevate her job skills.

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The tissue that forms the outer surface of the body is a stratified squamous epithelial cells whereas the lining of internal organs is made up of columnar epithelial cells.

Tissue is a group of cells which are similar in structure and function. The tissues which forms the outer surface of body are stratified squamous epithelium tissues, these cells have very flat surface. The surface layer of dead cells in the outside is vital for the protection of the body.

The tissue which lines up the digestive tract, the intestine is made up of a layer of columnar cells which are important for the facilitation of the absorption of nutrients in the body.

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The feature of cells best demonstrated by the image is that all organisms have cells with different shapes and functions. Thus, option C is the correct answer.

According to the cell theory, a cell is the structural and functional core of every creature. All cells are derived from pre-existing cells that are already there. Schleiden and Schwann introduced the concept of the cell.

A great number of cells make up creatures, as demonstrated by the image in the question. Therefore, the organisms with a large number of cells are known as multicellular organisms. A living thing is made up of several sorts of cells. Also, the cells found in such organisms are of different shapes and sizes and have different functions. Cell along with other cells make up a tissue.

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The next step after testing hypothesis :-

1. Pose a question.

2. Propose ways to duplicate your research.

3. Analyze the results.

4. Draw conclusions.

The next step in the scientific method is to test the hypothesis via designing an experiment. This consists of growing a listing of substances and a process a step-with the aid of-step rationalization of the way to conduct the experiment.

Hypothesis is a testable declaration approximately the relationship between  or extra variables or a proposed reason for some observed phenomenon.

A hypothesis states your predictions approximately what your studies will find. It's far a tentative answer to your research query that has not but been examined. For a few research initiatives, you may must write several hypotheses that deal with distinct elements of your research question.

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False because solid cannot flow .

Under high pressure, all solids shows a array of atomic and electronic transformations into more concise forms, eventually approaching a metallic state. In solids they have a strong force of attraction between the molecules and the space between them is very less. so these molecules are therefore, not free to move.

Some of the important characteristic of solids are ,Solids have definite shape ,Solids have strong intermolecular interactions, that indicate their molecules interact strongly with each other, causing them to accumulated closely and be at fixed positions.

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show the molecules so yeahh

Explanation:

maybe there are only 2 metalloids

Boron

Silicon

Answer:

transformation of food into energy

The Horizon is not likely to appear on a map.

The ones not likely to appear on a map are satellites. The longitude indicates the distance sideways or east to west of the Prime meridian and is very helpful in determining the location of a place. This is also true for the cardinal directions and the poles.

Those messages are sent to the hand using sensory neurons.

Axons are long single fibers that carry messages from the cell body to the dendrites of other neurons or other body tissues such as muscle. In muscles, this electrical message causes them to contract or shorten. Think of catching a ball. The brain tells neurons to send electrical signals to the neuromuscular junction. This releases neurotransmitters into your finger muscles, which contract to catch the ball.

Motor neurons release chemicals that are taken up by muscle fibers. This causes the muscle fibers to contract and the muscle to move. Neurons carry messages from the brain through the spinal cord. These messages are sent to the muscles, directing muscle fibers to contract and causing the muscles to move. Neurons that are sending signals release chemicals called neurotransmitters. This chemical binds to receptors on the surface of receiving neurons.

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The number of years passes before the amount of 8 kg of plutonium-239 will reduce to 1 kg is equal to 72900 years.

The half-life period of the radioactive element can be described as the time required to reduce its original amount to half after disintegration.

Given, the original amount of plutonium-239 (N₀) = 8 kg

The amount remaining after disintegration (N) = 1 kg

Consider that 'n' is the number of half-lives.

N ×2ⁿ = N₀

1 ×2ⁿ = 8

2ⁿ =8

2ⁿ = 2³

n = 3

Now, the number of half-lives (n) of plutonium-239 = 3

Half-life of plutonium-239 (t½) = 24300 years

t = n ×t½

t = 3 ×24300

t = 72900 years

Therefore, 8Kg of plutonium-239 will take 72900 years to reduce to 1 kg.

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Innate reflex are responses that are performed in automatic towards certain kind of stimulus. A good example is the one you provide, whenever you touch a hot potato you will drop it immediately.

Answer:

Yes

Explanation:

All insects do and ants do as well it shows when the baby ants go into their caves

Answer:

23

Explanation:

All humans have a total of 23 pairs of chromosomes, so that immediately eliminates the 24th. Our sex chromosome is the last one, which is the 23. It can either be XX (Female) or Xy (Male)

Hope this helps!

Vertical agriculture is not a reliable urban substitute, as it lacks many resources to implement, which makes implementation difficult in poorer countries.

The vertical garden is an agriculture concept for growing plants inside buildings or multi-story skyscrapers, often called farmscrapers, a term derived from the English skyscraper. In these buildings, which would function as large greenhouses, agriculture involves the use of technologies such as hydroponics to aid in plant growth. Some projects include the practice of livestock (especially poultry) on the lower floors.

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While vertical farming may be an urban substitute for expansive farmlands, there is no guarantee that it will be a dependable substitute for traditional farms. This is true.

Vertical farming is the method of growing crops in vertically stacked layers in a controlled environment. Vertical farming is utilized in urban places where there is limited space for crops to grow.

However, we cannot consider vertical farming to be a reliable substitute for traditional farms due to the high maintenance level and cost of vertical farming. It will be challenging to implement hydroponics and other plant-growth techniques on conventional farms.

As a result, vertical farming cannot be used in place of traditional farming.

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Flashbulb memories are the type of memories related to experiences that are intense or surprising.

Flashbulb memories are the long-lasting memories that have great effect on the emotional state of an individual. It is due to some learning or experience of a dramatic event. The memory can trigger enthusiasm or terror. For example, a college graduation, birth of child, or even some terror attack.

Memories are the type of data stored inside the brain about past events. A memory is the one that is acquires, stores, pertained for a very long time and is also retrieved as and when needed. Memories are retrieved by the reactivation of some specific neurons.

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Through photosynthesis, certain organisms convert solar energy (sunlight) into chemical energy, which is then used to build carbohydrate molecules.

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Meiosis is a cell division process that produces four haploid cells (gametes) form one diploid cell (sex cells). It is divided into two stages (meiosis 1 and 2) with four phases each. Story in the explanation.

Meiosis is the cell division process through which a diploid cell (2n) produces four haploid daughter cells (n).

After DNA replication there are two meiotic phases.

Story

I am a chromosome from a sex cell. I suffer a few modifications when the cell enters the cell division process.

There is a reductive first stage called meiosis I. During this phase, I go through 4 steps,

The cell suffers cytokinesis, and two haploid cells are formed. I am in one of them.

The second phase is called Meiosis II. Before this phase, we duplicate.

Cytokinesis occurs again. I am now part of one of the four haploid cells (gametes).

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Answer:

Some organisms are

•Producers

•Consumers

•Herbivores

•Carnivores

•Omnivores

•Scavengers

•Parasites

•Predators

•Decomposers

Some common binomial names are

•Species

(Homo Sapiens)

•Genius

(Homo)

•Family

(Hominids)

•Order

(Primates)

•Class

(Mammals)

•Phylum

(Chordates)

•Kingdom

(Animals)

The examples of these are listed below in parentheses.

Plasmolysis is the loss of water by plant cells after being placed in a solution with a higher concentration of solute than the cells. This is called a hypertonic solution. Osmosis causes water to flow from the cell into the surrounding liquid.

Plasmolysis is the process by which cells lose water in hypertonic solutions. When cells are in a hypotonic solution the reverse process cytolysis or cell lysis occurs resulting in a decrease in external osmotic pressure and a net flow of water into the cell. When plants are not watered the extracellular fluid becomes isotonic or hypertonic causing water to leave the plant cells.

This causes a loss of turgor pressure. You will probably notice it as a wilt. In more concentrated solutions cell contents lose water by osmosis. They contract and move away from the cell wall. Cells are limp It is cytolyzed. When a high concentration of salt is placed on the outside of the cell membrane water leaves and binds with the cell. As water is lost by this movement, the plant cells shrink and die. Because of this, salt can kill plants. It leaches water out of the cells.

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