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Answer:

screnshoot 1 - C

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The regions of the heart: Visceral pericardium, c. Endocardium, d. Myocardium, e. Parietal pericardium.

The visceral pericardium, sometimes referred to as the epicardium, is the innermost layer of the pericardium, a sac that encloses the heart and its major vessels. It is composed of a thin mesothelial membrane which is continuous with the outer layer, the parietal pericardium. The visceral pericardium is firmly attached to the heart and the great vessels, and its surface is covered with a thin layer of serous fluid that acts as a lubricant and helps reduce friction between the heart and the outer layers of the pericardium.

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If a mistake were not caught by the proofreading mechanism and became permanently incorporated into the DNA, the consequences could be catastrophic.

The DNA is the blueprint for all life, and any mutation or alteration can cause a range of problems, from minor to severe. If the mistake were to alter a gene that is important for cell survival, it could lead to a range of health problems, from mild to life-threatening.

For example, if a gene that is responsible for the production of a certain enzyme is altered, it can cause a metabolic disorder, leading to physical and mental disabilities. If the mistake were to alter a gene that is responsible for the functioning of a specific organ, such as the heart or brain, it could lead to serious health problems, such as heart defects or neurological disorders.

If the mistake were to alter a gene responsible for the development of an organism, it could lead to serious developmental defects or even death. For example, if a gene that provides instructions for the development of the body's organs is altered, it could lead to serious malformations or even death.

In addition to the health risks, a mistake in the DNA could also lead to changes in the species. For example, if a mutation alters a gene that is important for the survival of a species, it could lead to the extinction of the species. This could be due to a decrease in fertility, a decrease in the population size, or an inability to adapt to a changing environment.

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As the variation of tough grass that has silicates (compounds containing oxygen and silicon) that reinforce its leaves has allowed this type of grass to survive for many years in an adverse environment, this is an example of b. natural selection.

This particular type of grass has adapted over time to survive in an adverse environment, due to its silicates (compounds containing oxygen and silicon) reinforcing its leaves. This is an example of natural selection, showing how the grass has been able to survive for many years despite the difficult conditions.

The variety of grass characterized by silicates (oxygen and silicon compounds) in its leaves has enabled it to survive in difficult environments over the years. This is a prime example of natural selection at work.

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Answer:

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The Calvin cycle is the cycle of chemical reactions performed by plants to “fix” carbon from CO2 into three-carbon sugars. Instead, the Calvin cycle is powered by ATP and NADPH, which are created by harnessing the energy from photons in the light-dependent reactions. ...

Answer:

A, B, C

Explanation:

One is a channel, one is a carrier, the other is simple

Four common characteristics that all mollusks share , are having soft bodies, a mantle, a visceral mass, and the foot.

The phylum Mollusca has many distinctive features and  special characteristics, which include a mantle cavity, visceral mass, foot, and radula.  Mantle is the cavity which is used for breathing and excretion purpose , radula is longue like structure that helps in sensory and food grasping purpose.  Mollusks also includes various classes like Gastropod, Bivalvia, Cephalopoda, and Polyplacophora .

Gastropods have a special characteristics that includes spirally-coiled external shell while others mollusks usually have a flattened shell, and many of them doesn't  possess any shell as outer structure.

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The lac operon is an inducible operon, meaning that it is expressed only when needed. This is in contrast to a repressible operon, such as the trp operon, which is turned off in response to a stimulus.

The lac operon is activated when lactose, its inducer, is present in the environment. This activates the lac repressor, which in turn binds to the DNA, blocking the transcription of the genes. When the inducer is absent, the repressor is not activated, so the genes are expressed. In contrast, the trp operon is activated when the repressor is absent.

When the repressor is present, the trp operon is not expressed, and when the repressor is absent, the trp operon is expressed. Therefore, the lac operon is activated when its inducer is present, while the trp operon is activated when its repressor is absent.

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Answer:

It will bend and grow towards the hole because the sunlight will shine through the hole and the plant will sense it so it will grow towards the light. I hope I could help you :)

Explanation:

Answer:

the Variable that need to be controlled in this investigation is :

1. Temperature: Temperature affects the rate of the reaction and must be kept constant throughout the experiment to ensure accuracy.

2. Concentration: The concentration of the reactants must be kept constant in order to ensure that the reaction rates are being accurately measured

Chronically tight muscles can be release by Stretching ,Massage ,Foam Rolling and Strengthening.

Chronically tight muscles can be caused by over using muscle , poor posture , stress , anxiety and depression . This stiffness can commonly occurs after extensive exercise or lifting weights.  this stiffness can also occurs after periods of inactivity, like prolonged sitting and  sleeping for long hours in the bed.

In general , Muscle pain can effect almost every part of your body, which may include your neck, back, legs and even your hands. These pain can be relived by various medication that includes relaxant and ointments that soothes the pain .

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Answer: cytoskelton is a microscopic network of protein filaments

Explanation:

Answer:The cytoskeleton is a dynamic network of interlinking protein filaments present in the cytoplasm of all cells, including bacteria and archaea. It extends from the cell nucleus to the cell membrane and is composed of similar proteins in the various organisms.

Explanation: this is one of my spelling words!

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Answer:

Most genes contain the information needed to make functional molecules called proteins.

Plants have three types of root systems: 1.) taproot, with a main taproot that is larger and grows faster than the branch roots; 2.) fibrous, with all roots about the same size; 3.) adventitious, roots that form on any plant part other than the roots. ! :]

Explanation:

Can you reformulate the question? There's no one can understand that....no punctuation marks,no nothing

Answer:

bronchodilators - relaxes and dilates the bronchial muscles

antitussive - supresses the cough refex

decongestant - stimulates vasoconstriction of blood vessels

Explanation:

PLATO

Answer:

Most biological laundry detergents contain lipase and protease enzymes, both of which are found in the body. Lipases break down fats and oils, while proteases work to break down protein chains. Their ability to break down these compounds makes them excellent for stain removal.

The cell's exterior cell will contain higher water percentage if the external environment of the cell becomes particularly watery (dilute). The cell milieu is referred to as hypotonic. In this situation, water will diffuse.

Any external solution with a low solute content and a high water concentration in comparison to body fluids is referred to as a hypotonic therapeutic solution. There is a net transfer of water first from solution through into body in hypotonic solutions.

When a cell is in a concentrated solution, water goes out of the cytoplasm when both solutions equal isotonic because the workaround has a greater moisture content than the cell cytosol. When cells are submerged in a hypotonic solution, their surfaces will absorb water.

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A eukaryotic cell's structure allows for the localization of reactions because there are areas within the cell where particular enzymes colocalize.

Structural barriers are also used to protect against reactive molecules, and the division of work in this cell allows for greater efficiency of cellular processes than in a bacterial cell. In a eukaryotic cell, the phrase "subdivision of work" refers to the existence of several cell compartments, such as those connected to certain organelles that offer an appropriate medium for carrying out specific reactions, such as the presence of hydrolytic enzymes in lysosomes. As a result, according to the findings, division of labour is essential for eukaryotic cells to carry out various activities, which translates to greater metabolic efficiency when compared to bacteria.

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Explanation:

Rainfall and surface runoff

Rainfall, and the surface runoff which may result from rainfall, produces four main types of soil erosion: splash erosion, sheet erosion, rill erosion, and gully erosion.

The stages of respiration in 3 steps include the following below:

This is referred to as a metabolic process in which the living cells of an organism obtains energy in the form of ATP by taking in oxygen and liberating carbon dioxide.

The lungs is referred to as the central organ for respiration in humans and it involves the process in which oxygen is diffused into the lungs and releasing carbon dioxide as the by-product as result of it being breathed out of the body.

Fermentation takes place under anaerobic conditions which means with no or insufficient amount of oxygen being present and it does not fully oxidize glucose instead, small, reduced organic molecules are produced as waste.

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The probability that the offspring will be homozygous dominant for this trait is 0%, option A is correct.

The Punnett square shows the possible combinations of alleles from the parents. The parent that is heterozygous (Pp) can produce two types of gametes (eggs or sperm), one carrying the dominant allele (P) and one carrying the recessive allele (p). The parent that is homozygous recessive (pp) can only produce gametes carrying the recessive allele (p).

The offspring resulting from this cross will all be heterozygous (Pp) since each parent can only contribute one allele for this trait. Therefore, 0% of the offspring have this characteristic and are homozygous dominant (PP),  option A is correct.

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The complete question is:

A parent that is heterozygous for a trait is crossed with a parent that is homozygous recessive for the same trait, as shown in the Punnett square.

What is the probability that the offspring will be homozygous dominant for this trait?

A) 0%

B) 25%

C) 50%

D) 75%

In deletion DNA sequence changed by removing at least one nucleotide in a gene.

Deletion mutation generally takes place when part of a DNA molecule is not copied during DNA replication. Thus the uncopied part remains as small as a single nucleotide or as an entire chromosome.

In general ,Deletion mutations can be responsible for causing large number of genetic diseases, that includes disease like cystic fibrosis and the cat cry syndrome, that makes child cry with the cat sound or cat meowing . Hence, deletion mutation can occurs when a piece of DNA is removed from the sequence.

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Answer:

small intestine

Explanation:

Hope this helps :)

Answer:

From the stomach, food next moves into the small intestine which has functions of digestion and absorption.

No, those who were successful in Round One will not be successful in Round Two since there will be increased competition.

In the pursuit of a single, unshareable aim, competition is a contest between two or more parties in which one side gains an advantage over the other (an example of which is a zero-sum game). Humans, social and economic organisations, and living things are all competing entities. It provides people a variety of employers and working settings while also creating jobs.

Additionally, competition lessens the need for government intervention through business regulation. Consumers, society, and individual liberty all benefit from a healthy, competitive free market. Studies show that competition can promote focus, effort, and learning. A student may be motivated to work significantly harder on their homework by the social pressure of competing with other students.

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Answer:

is a multiple alleles

Explanation:

One similarity between hydrolysis and carbonation is that they are both chemical reactions that involve the addition of water to a compound.

One difference between hydrolysis and carbonation is that hydrolysis involves the breakdown of a compound into smaller molecules through the addition of a water molecule, whereas carbonation involves the addition of carbon dioxide to a compound. Hydrolysis is a chemical reaction that occurs when a compound reacts with water, whereas carbonation is a chemical reaction that occurs when a compound reacts with carbon dioxide.

Answer:

The answer is C

Explanation:

Because they all have the same design, they will all be the same.

Answer:

No

Explanation:

Some resources will practically never run out. These are known as renewable resources. Renewable resources also produce clean energy, meaning less pollution and greenhouse gas emissions, which contribute to climate change.

Examples are Sun, Wind, and Water. We will always have sunlight and wind, right? So no, renewable resources CANNOT run out, hence the 'renewable' part. They come from sources that are not depleted when used. Others, like biomass, come from sources that can be replenished.

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The two main plant tissues which work together to release sugar and carry hormones so that reproduction can take place are ground and vascular.

In plants, vascular tissues are tissues that act to transport nutrients to different parts of the plant.

In higher plants, vascular tissues include the plant phloem and the plant xylem.

In conclusion, the two main plant tissues which work together to release sugar and carry hormones so that reproduction can take place are ground and vascular.

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