Why are stem cells harvested from early embryos useful in medicine?

Answer:

D.) Control Center

Explanation:

Just did it on USA test prep

Answer:

When one is nervous activates the sympathetic system and the irrigation towards the cardiac and muscular zone is increased, increases the arterial tension and the respiratory rate.

That is why the blood or blood volume is dispersed in these organs to be able to render efficiently in a moment of stress or flight for the human.

When we have sexual intercourse and there is sexual excitement, a large part of the blood volume goes to the reproductive organs to be able to irrigate the area and produce said excitement, if we are stressed in an alert situation, it will be harmed by the priority body to irrigate the main areas like heart and muscle.

Explanation:

It is important to clarify that the physiological stress in humans is a normal situation, thanks to the presence of cortisol and it is what keeps us active, but if it increases due to anxiety or overwork, psychological problems, etc., it will no longer be physiological due to that is in excess.

Thus, sexual arousal will also be affected by the psychological impotence generated by excess mental stress outside the vascular pattern.

Answer: 5a. 0%    5b. 50%    5c. 50%

Explanation: It is asking for you to cross an individual who is heterozygous for this trait, Ee, with someone who has attached earlobes.  Because this is the recessive trait they must be ee. With that in mind your Punnett Square should be an Ee x ee. So 0% of the offspring will be homozygous dominant, EE. 50% will be homozygous recessive, ee. And 50% will be heterozygous, Ee.

Hope this helps.

The chemical properties of the yeast-water-hydrogen peroxide mixture are the same as the chemical properties of the elephant toothpaste. Thus, option "C" is correct.

CATALYST:

A catalyst is a substance that increases the rate of a chemical reaction without getting used up in the process.

A catalyst increases the rate at which a reaction occurs by lowering the activation energy of the reaction.

Thus, option "C" is correct.

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The correct answer is B. Earth is an open system with only energy input from the sun. Earth is a planet inserted in a specific solar system that orbits around the sun. Although there are other energy sources in the universe, the main energy source is the sun.

Answer:

Union of Concerned Scientists: Works for a healthier environment and a safer world. Through this renewal award, UCS conducts technical assessments on securing weapons material in the US.

Natural Resources Defense Council: Strives to rid our food, air, water, and household products from toxic chemicals. NRDC works to protect our world's oceans from pollution and exploitation.

Environmental Working Group: Protect human health and the environment and specializes in research and advocacy in the areas of agricultural subsidies, toxic chemicals, drinking water pollutants and corporate accountable.

Explanation:

Answer:

a. regenation

Explanation:

hope its hrlp

Answer:

hope it is help for you please mark brinlist

Answer:

The topic we were given is to explain how changes in Earth’s systems affect the growth of life on Earth. We will talk about three main things that are a part of this statement which will be; how life affects the climate system, how species can survive, and how do we know about this.

In our introduction we talked about how life affects the climate system. In very short terms, we can conclude that life affects the composition of the atmosphere. We can also conclude that it affects the climate as well because if we apply what we learned in the labs about how different materials absorb heat at different rates then we will see that when you have different life forms that are taking in and releasing gases such as carbon dioxide, methane and oxygen, that they too even have different rates at which they do it. Which backs up the point that it changes the composition of things. So when we have climate changes, not only are the species, but also our ecosystems are. They respond to these scenarios by adapting, migrating or even reducing their own population. Some examples in our own lives would be droughts, heat increasing, and even insect outbreaks. Which all link to climate changes, and even wildfires that occur. Some concerns are that we could have declining water supplies, health impacts in cities due to heat, reduced agricultural yields, and finally erosion and flooding in coastal areas are also very big concerns for us.

How can our species even survive? You may ask,well I will tell you how. Three simple things: move, die, adapt. It's sad to think of what we could be doing to our own ecosystems and animals. The thing is that as time goes on and the more climate changes there may not even be much left. Most animals will either adapt to the climate or move higher trying to escape the hotter weather. Scientists have been making assumptions that maybe it's changing too fast for them to do anything. Because the truth is that why would you want to die voluntarily. I can see why with older animals, but why with younger ones? They could want to run, but the thing is that they don't have a choice. Extinction of living things is one common fear. One day we could all go poof with any word being said, and that should be frightening to people. Adaptation could be the only way we brave through it.

The other part of this is how do we even know about climate change exactly? Over the years we have had many physical and biological changes that are confirming our theory about climate change. The retreat of glaciers, the melting of them and the ice is one big give away as well.  Also the intensification of rainfall events, changing in the timing of the plants that are leafing out, range of some species that are shifting, and finally the arrival of migrant birds in springs. We also can see that human activity is also a reason for it changing as well as other things. There is evidence that we can not deny or ignore.

In conclusion, how life affects the climate system, how species can survive, and how we know about this, all play apart in the big story called climate change. It bears the truth that one day will not be pretty or just a concept, it will be utter reality. Until then there is another tomorrow, another week, another month and another year. See you on the flip side of things! Pure truth will one day be exposed, so will the mind of people and things.

Explanation:

I gathered facts from well known articles! Its a short writing as well i hope.

Answer:

A lot of the animals would die because they have no food

Explanation:

The producers produce the things required for animals to live such as nutrients. If they aren't there, thhe animals will die.

Introducing the Organ System Campaign - advocating for the health and well-being of your body's organ systems!

Our goal is simple - to raise awareness about the importance of taking care of all your body's organ systems. Each organ system plays a vital role in keeping your body functioning properly, and neglecting any one of them can have serious consequences for your overall health.

From the circulatory system, which pumps blood and oxygen to your organs and tissues, to the respiratory system, which brings in oxygen and expels carbon dioxide, to the digestive system, which breaks down food and absorbs nutrients, every system is crucial.

Our campaign will focus on educating people about healthy habits, such as eating a balanced diet, staying hydrated, getting enough exercise, and getting regular check-ups with your doctor. We want to empower individuals to take control of their health and make choices that benefit their body's organ systems.

Join us in the fight for healthy organ systems - because a healthy body is a happy body!

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Answer:

the celll self destructs

Answer:

letter "C" is the correct answer

Explanation:

hope it help to you my friend(◍•ᴗ•◍)❤

Answer:

Answer is Definitely C

Explanation:

Answer:

Phylum Mollusca

Explanation:

Some examples:-

The correct answer are as follows:

The correct answers to the given questions are as follows:

Value-added products are harder to use by the consumer and are

often sold at lower prices: False

Name one source of accurate and up-to-date information: Journals

Name one of the most common forms of information: Internet

All sources of information are accurate and appropriate for your

needs: False

Injury prevention is the prevention of injury and loss.

We often refer to safety in our work as being free from danger

Almost all chemicals are accompanied by material safety data sheets

Living plants, animals and other organisms can cause disease

and injury: True

Food safety is the same as occupational safety: False

A ground fault circuit interrupter (GFCI) is a device that protects against electrical shock

A GFCI should be on all lines to bathroom

PPE should always be used in a(n) laboratory.

Employer expectations include Responsible behavior, Honesty, Willingness to be a team player. Correct option is d. All of the above

Name a good work habit mentioned in this chapter: punctuality

Supervised Agricultural experience is the part of agricultural education that allows students to practice what they have learned in the classroom and the laboratory.

Name one of the four types of supervised experience that are

widely used: Supervised Agricultural experience

One important activity you will do while completing your

supervised experience is Develop job skills.

In conclusion, Supervised Agricultural experience provides students with practical job skills.

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The plants exhibit pharmacological significance due to their alkaloid content, which can have potent effects on the nervous system and various bodily functions.

Family Solanaceae, commonly known as the nightshade family, is a diverse group of flowering plants characterized by several key features. The floral formula of Solanaceae is typically represented as (5) K (5) C(5) A(2+2) G(2), indicating five sepals, five petals, five fused stamens (with two longer and three shorter ones), and a superior ovary composed of two fused carpels. The floral diagram represents a radial symmetry with overlapping sepals and petals, and the stamens and pistil positioned in the center.

Solanaceae encompasses many medicinally important plant species. Two notable examples are:

Atropa belladonna: Also known as deadly nightshade, Atropa belladonna contains alkaloids such as atropine and scopolamine, which have various medical uses. These compounds have anticholinergic properties and are used in medicine to dilate pupils, treat gastrointestinal disorders, and relieve bronchial spasms.

Datura stramonium: Commonly called jimsonweed or thorn apple, Datura stramonium contains alkaloids like scopolamine and hyoscyamine. It is used for its antispasmodic and bronchodilatory properties and has been employed in traditional medicine to relieve asthma symptoms and treat skin conditions.

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Answer: DNA

Explanation:

The first organisms to have lived in Earth are capable of utilizing inorganic materials and sunlight. These organisms also could live on the Earth that has without to too little oxygen.

OPTIONS

X aerobic plants

X consumers

X producers

ANSWER: anaerobic organisms = Earlier record of the Earth's atmosphere do not contain

Answer:

The similarity between the amino acid sequences between the two polypeptide chains indicates that some time ago there was the existence of only one sequence, however, later on, the phenomenon of duplication took place. Due to duplication, the emergence of two similar sequences took place adjacent to each other in one chromosome.  

Post duplication it was due to chromosomal aberration that the two sequences got positioned on distinct chromosomes. This resulted in the positioning of the alpha polypeptide chain on chromosome 16, and on chromosome 11 beta polypeptide chain got positioned.  

However, due to mutations, the two polypeptide chains do not exhibit complete similarity. Post duplication to the current time both the sequences would have gone through various mutations resulting in the reduction of the entire similarity of the genes.  

By comparing the DNA sequences of different species, scientists can identify shared ancestry and determine how closely related different species are. This enables them to make predictions about the evolutionary relationships between different species and to reconstruct phylogenies that extend back in time, providing insights into the evolutionary history of life on Earth. Molecular techniques, such as DNA sequencing, are particularly useful for this purpose because DNA is a stable, heritable molecule that is passed from one generation to the next.

Answer:

I got you

Explanation:

There are 50 species

Answer:

drink

Explanation:

lol

The usage of synthetic plant hormones for the modification of plant growth can have environmental implications.

Factors to consider

1. Ecotoxicity: Synthetic plant hormones, if not properly regulated or used in excessive amounts, can pose risks to non-target organisms and ecosystems. They may affect the growth and development of other plants, beneficial insects, and microorganisms, potentially disrupting ecological balance.

2. Soil and Water Contamination: Improper application or disposal of synthetic plant hormones can lead to soil and water contamination. Runoff from treated fields or improper disposal of unused hormones may introduce these compounds into water bodies, potentially affecting aquatic organisms and overall water quality.

3. Resistance and Persistence: Repeated and excessive use of synthetic plant hormones can contribute to the development of resistance in target plant species. This can lead to the evolution of herbicide-resistant weed populations, requiring higher doses or different chemicals to achieve the desired effect. Moreover, some synthetic hormones may persist in the environment for extended periods, potentially impacting subsequent crops or natural vegetation.

4. Non-target Effects: Synthetic plant hormones may influence the growth and development of unintended plant species, leading to unintended consequences such as changes in biodiversity, alteration of natural plant communities, or interference with the natural ecological succession.

5. Human Health Concerns: The potential impacts of synthetic plant hormones on human health are an area of ongoing research. While these hormones are generally considered safe for use in agriculture when used according to regulations, there may be concerns related to exposure, residues, or indirect effects on food quality and safety.

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Answer:

Fermentation is a metabolic process that produces chemical changes in organic substrates through the action of enzymes. In biochemistry, it is narrowly defined as the extraction of energy from carbohydrates in the absence of oxygen. 

Explanation:

I hope it will help you

Answer:

Fermentation is a metabolic process that produces chemical changes in organic substrates through the action of enzymes through chemical breakdown of a substance by bacteria, yeasts, or other microorganisms,

Explanation:

Have a nice day

1.3.1 A form of security required by the bank before granting a loan is called collateral.

1.3.2 A financial statement that summarises the assets and liabilities of the business is called a balance sheet.

1.3.3 A document that provides an estimate of expected income and expenditure for a given period is an income statement.

1.3.4 The combination of product, pricing, placement, and promotion is called the marketing mix.

1.3.5 The sequence of steps involved in transferring products from the farm to the consumer​ Direct marketing.

An asset that a lender accepts as collateral for a loan is referred to as collateral. Depending on the loan's purpose, collateral may be in the form of real estate or other forms of assets. For the lender, the collateral serves as a type of insurance.

The act of presenting an offer directly to a target client and providing them with a way to respond immediately is known as direct marketing. It is sometimes referred to as direct response marketing among practitioners. Advertising, in contrast, is a form of mass messaging.

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A mass extinction event is when over 75% of species die out in a relatively short period of time. Therefore, the correct answer is: D. 75%

Earth's biodiversity declines rapidly and widely during an extinction event. A significant shift in the variety and abundance of multicellular organisms indicates such an event. It occurs when both the rate of speciation and the rate of extinction outpace the background rate.

A short period of geological time known as a mass extinction occurs when a significant portion of biodiversity, or distinct species—such as bacteria, fungi, plants, mammals, birds, reptiles, amphibians, fish, and invertebrates—die.

Impacts from comets and asteroid, widespread volcanism, climatic changes, rapid shifts in geography and ocean currents, or a combination of these can all lead to mass extinctions. The extinction of a single species is a characteristic of the flora and fauna of Earth.

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Answer:

Oxygen and pyruvate.

Explanation:

The krebs cycle is a stage of cellular respiration and occurs in aerobic organisms. In this case, we can say that the Krebs Cycle only occurs in the presence of oxygen, being essential for the completion of cell respiration.

The Krebs cycle only occurs after the completion of glycolysis, as it needs to be initiated by pyruvate, which is a molecule resulting from glycolysis. In this case, in addition to oxygen, the presence of pyruvate is essential for the krebs cycle to occur.

Answer: Immunity

Explanation: Antibiotics can be highly effective in treating bacterial infections, as long as the bacteria have not developed immunity to the antibiotics.

Answer:

A dominant allele is an allele that will express the dominant phenotype when only one allele is present. In contrast, a recessive allele is an allele that is only expressed when both alleles are in the genotype.