explain how the addition of acetyl groups to histones leads to a weaker association of dna in nucleosomes.

Answer:

enzymes are protein molecules that act as catalysts, speeding up chemical reactions without themselves getting used up. Each enzyme will only speed up a specific reaction, for example, catalase will speed up the decomposition of hydrogen peroxide into water and oxygen but it will not speed up the breakdown of starch into glucose. Enzymes (e.g. catalase) have active sites with specific shapes that bind to the substrate molecule (e.g. hydrogen peroxide) forming an enzyme-substrate complex. The enzyme-substrate complex then breaks down into the enzyme and product, allowing the enzyme to go on and react with another substrate molecule. Temperature and pH affect enzyme function because they can change the shape of the enzyme’s active site, preventing it from binding to the substrate, just as a broken lock will no longer fit the key. When the shape of an enzyme changes we call this denaturation. Any factor that increases the frequency of collisions between enzymes and substrates (increasing concentration, surface area or temperature) will increase the rate of reaction.

Explanation:

What lemon juice, snake venom and cyanide have in common is hat they are all acidic substances.

An acidic solution is a solution that contains hydrogen ions as its only positive ion in solution. Acidic substances have a sour and turn blue litmus paper red.

What lemon juice, snake venom and cyanide have in common is hat they are all acidic substances.

Learn more about acids: https://brainly.com/question/3930479

Answer:

1.Sunlight.

2.The sun.

Answer:

Solar energy/Radient energy is used by plants to prepare their foods.

Solar energy is the main source of energy for the earth.

Answer:

When you are in the laboratory and take a direct sniff of the chemicals you are using, you run the risk of damaging your mucous membranes or your lungs. When it is necessary to smell chemicals in the lab, the proper technique is to cup your hand above the container and waft the air toward your face.

Explanation:

Have A Wonderful Day !!

Answer:

The head

Explanation:

A phospholipid is composed of a glycerol and 2 fatty acid tail

The heads are hydrophilic

The tails are hydrophobic

When it comes to predicting the trends in moose and wolf populations in areas with long growing seasons, there are a few key factors to consider.

First and foremost, it's important to understand the relationship between these two species. Wolves are natural predators of moose, and as such, the size of the wolf population is often directly linked to the availability of moose as a food source. With a longer growing season, it's likely that the overall population of moose will increase. This is because they will have more time to feed and build up their numbers before winter sets in. However, this increase in moose numbers may also lead to an increase in the wolf population, as there will be more prey available for them.

To know more about species refer :

https://brainly.com/question/30766242

#SPJ11

The functions of the rough endoplasmic reticulum include - Protein synthesis, Glycoprotein synthesis, Protein sorting.

Rough endoplasmic reticulum

Rough endoplasmic reticulum (RER), a network of interconnected flattened sacs that is an organelle with a continuous membrane found in the cytoplasm of eukaryotic cells and is essential for protein production.

The nuclear envelope, which envelops the cell nucleus, is continuous with the RER membrane. The Golgi apparatus, which transports, transforms, and packages proteins for delivery to specific locations, is situated close to the RER. The RER produces a large number of proteins, which are then transferred to the Golgi apparatus in vesicles.

The RER is linked to numerous functions in protein production, including sorting, folding, and post-translational modifications. The mature mRNA transcript is translated by membrane-bound ribosomes in the RER into amino acids, which are then joined to form polypeptides.

To know more about Rough endoplasmic reticulum visit the link:

https://brainly.com/question/14668202?referrer=searchResults

#SPJ4

Answer:

Explanation:

I hope it help you

If higher immunity leads to a lower number of eggs produced by females in Dlugosch's Small Octopus, then there will be a negative correlation between immunity level and egg production.

A K approach would be more likely to develop if the illness causes the octopus population to decline. Resources are few in a tiny community, therefore long-term stability and survival are prioritized over rapid population expansion. The K approach emphasizes having fewer kids while allocating more resources to ensuring their survival and welfare. In a small population, the following two characteristics connected to a K strategy might be more prevalent:

Increased parental care: Parents invest more time and resources in raising a smaller number of offspring to increase their chances of survival and reproductive success.

Delayed maturation: Individuals take longer to reach reproductive maturity, allowing them to invest more time in growth, development, and building up resources before reproduction.

These traits help ensure the survival and success of the limited number of offspring in a small population, aligning with the K-selected life history strategy.

In this figure, the y-axis represents the number of eggs produced by females, and the x-axis represents the immunity level of the octopuses. The bars or lines would show a decreasing trend as the immunity level increases, indicating a negative relationship between immunity and egg production.

To know more about a correlation, refer:

https://brainly.com/question/9065284

#SPJ4

A likely consequence of a genetic bottleneck event on an island population compared to a mainland population is a decrease in genetic diversity and an increase in genetic drift.

A genetic bottleneck occurs when a population undergoes a dramatic reduction in size, leading to a significant decrease in genetic diversity. This can occur as a result of a natural disaster, human intervention, or other factors. In the case of an island population, the bottleneck event may be due to founder effects, where a small group of individuals establish the new population. As a result of reduced genetic diversity, the island population is more susceptible to genetic drift, where certain alleles become more or less common in the population due to chance events. Over time, this can lead to the accumulation of genetic differences between the island and mainland populations.

Learn more about genetic bottleneck here:

https://brainly.com/question/3188869

#SPJ11

That's an exception...

Without hardwork you cannot get full marks..

Answer:

vaccines inject either weaker strain or dead viruses into the body in order for the immune system to produce antibodies that will help fight off the disease in the future.

hope this helps

Answer:

Vaccines help develop immunity by imitating an infection.

It causes the immune system to produce T- lymphocytes and antibodies.

once the imitation infection goes away, the body is left with a supply of T- lymphocytes, as well as B- lymphocytes that will fight the disease in future.

All of these are evidence of a common evolutionary ancestry for cell signaling except both plant and animal cell plastids code for cell membrane receptors.the option 3, "both plant and animal cell plastids code for cell membrane receptors," is not evidence of a common evolutionary ancestry for cell signaling.

Evidence of a common evolutionary ancestry for cell signaling are as follows:

1. Both bacteria and eukaryotic cells have receptors for intercellular signaling in their cell membranes

2. Both plant and animal cells participate in cell junctioning

3. both plant and animal cell plastids code for cell membrane receptors

4. Both unicellular bacteria and yeast have complex cell-signaling systems that use chemical messengers

Plant and animal cell plastids do not code for cell membrane receptors. Instead, they are responsible for producing pigments and storing other essential materials.

For know more about plastids visit:

https://brainly.com/question/24534747

#SPJ11

Imelda can pick up water heaters in her house that do not contain any CFCs.

CFCs (chlorofluorocarbons) are synthetic compounds that were commonly used in various applications such as aerosol sprays, refrigerators, and solvents. However, due to their harmful effects on the ozone layer, their production and use have been phased out.

While aerosol sprays, refrigerators, and solvents may have previously contained CFCs, manufacturers have transitioned to alternative substances that are ozone-friendly. Therefore, it is possible to find aerosol sprays, refrigerators, and solvents in the market that are labeled as CFC-free.

On the other hand, water heaters do not typically contain CFCs. Water heaters are appliances used for heating water for domestic purposes, such as bathing and washing. They operate by using electrical or gas heating elements and do not require the use of CFCs in their functioning.

Thus, among the options provided, Imelda can confidently choose water heaters as a household item that does not contain any CFCs.

For more such answers on CFCs

https://brainly.com/question/1122852

#SPJ8

Answer:

I don't exactly know too much about fossils and current animals, so I'll try my best.

Explanation:

Fossils provide evidence about life on Earth that currently extinct. Through fossils, we've discovered several species of animals and plants that previously existed. We also learn how life on Earth changed throughout the years. Fossils found in younger rocks look like animals and plants that are living today. Fossils in older rocks look less like the current living animals and plants. Some fossils found look either more or less like current species we know today.

(Sorry if this didn't help)

A) Mutations withinside the moth DNA ended in variation. Over time, the mutations have been exceeded in offspring. Different species developed

Members of a species particularly the ones reproduced display positive versions. Some of those versions are because genes as a result may be inherited. Some of the inherited versions make people owning them higher acceptable to the winning environmental conditions. The higher-tailored people continue to exist and attain reproductive age and skip over their beneficial traits to their offspring. Over a protracted duration of time, herbal choice makes people of a species to adapt new exclusive species which might be higher tailored to their environment.

Scientists have found the particular mutation that famously became moths black in the course of the Industrial Revolution. In an iconic evolutionary case study, a black shape of the peppered moth hastily took over in business components of the United Kingdom in the course of the 1800s, as soot blackened the tree trunks and partitions of its habitat.

Thus it is clear that mutations in the moth DNA resulted in variation. Over time, those mutations were passed to offspring. Different species evolved over time.

To know more about variation refer to the link :

https://brainly.com/question/14438201

Answer:

c) Variation in the ancestral species existed. Depending on the habitat, certain coloration variations provided better camouflage to escape predation. Over time, different species evolved

Explanation:

i did it and got it right :)

Spinach must be transported to the serving size at 41. Spinach is a nutritious leafy green vegetable packed with vitamins and minerals.

It is commonly consumed raw in salads or cooked as a side dish. Spinach is known for its high iron content and is an excellent source of vitamin K, vitamin A, and folate. It requires proper transportation and handling to maintain its freshness and nutritional value. Storing spinach at 41 degrees Fahrenheit (5 degrees Celsius) helps preserve its quality, texture, and flavor, ensuring that it reaches consumers in optimal condition for consumption.

Learn more about Spinach here:

https://brainly.com/question/1428538

#SPJ11

Answer:

One of the most common types of bacteria that cause pus formation is Staphylococcus aureus, although any bacterial infection may produce pus. An infection that leads to the production of pus is called a purulent infection.

Explanation:

The option that involves systematically investigating all combinations of characteristics of a product, event, or other target is Morphological analysis.

Morphological analysis involves analyzing and dissecting a specific problem by taking into account all of its components, interrelationships, and potential solutions. It is a structured approach to problem-solving that includes systematic investigation of all combinations of characteristics of a product, event, or other target, with the aim of identifying its inherent qualities and potential alternatives.

The explanation for the other given options are:Cross-pollination: It is the mixing or blending of different ideas, processes, or fields of knowledge from different domains to create innovative new solutions.Redefining the problem: It is the process of refining or redefining the problem or challenge by changing its structure or assumptions to generate new and better solutions.Impromptu storytelling: It is a technique that involves telling a story in real-time, without any preparation or rehearsal. It is a powerful tool for engaging people and conveying complex ideas in a simple and memorable way.

To know more about combinations of characteristics visit

https://brainly.com/question/2596731

#SPJ11

Explanation:

I hope I help you... :)

If not i'm sorry

A dermatome is neither a slowly adapting cutaneous receptor nor a fast adapting cutaneous receptor. It is not a free nerve ending either. A dermatome refers to an area of skin that is supplied by a single spinal nerve root.

Each spinal nerve root supplies a specific region of skin, and the collection of these regions is known as dermatomes. Understanding dermatomes is important in diagnosing and treating conditions that affect nerve function, such as spinal cord injuries and peripheral neuropathy. In summary, a dermatome is not a type of cutaneous receptor or free nerve ending but rather a region of skin supplied by a specific spinal nerve root.

Learn more about dermatome here:

https://brainly.com/question/19579028

#SPJ11

The disease expressed only in homozygous recessive conditions, and can therefore avoid natural selection because the detrimental allele is protected in heterozygous carriers is: (3) cystic fibrosis.

Cystic fibrosis is the disease of the lungs and the digestive system that is autosomal recessive in nature. The cells affected by this disease are the mucus, sweat or digestive juices producing ones. The disease can avoid natural selection as the affected individuals are not able to reproduce and hence is not passed on to next generations.

Natural selection is the phenomenon of change and adaptation where a population evolves with the ability to adapt better in the changing surroundings and thus is naturally selected.

The given question is incomplete, the complete question is:

What disease is only expressed in homozygous recessive conditions, and can therefore avoid natural selection because the detrimental allele is protected in heterozygous carriers?

To know more about natural selection, here

brainly.com/question/2725702

#SPJ4

Answer:

small instestine...

.

....

Answer: Shark

Explanation: A shark is an aquatic animal because it lives inside water.

Animals like cats that live on land are called Terrestrial animals. Animals like monkeys that live in trees are called Arboreal animals, and animals like kites (a bird) that fly in the sky are called Aerial animals.

aquatic animal means animal living in water. that means shark is an aquatic animal from the four choices above.

Explanation:

cats live on land and also cats hate water.

monkey live on the tree in the forest.

kite is played by students by throwing it up to the sky.

so it means shark is the aquatic animal and also shark is not a land live nor a forest liver.

Answer:

two electrons

Explanation:

does this help

Answer:

2 electrones

Explanation:

To bond and complete the 8 and be noble

The mechanism by which a particle is transported downstream is a primarily function of particle size and fluid velocity.

D is the correct answer.

The erosion, movement, and deposition of sediment as a result of currents and waves is known as sediment transport. Physical, chemical, and biological factors may have an impact on these systems, further complicating the system and making it more challenging to explain sediment dynamics.

The movement of a load downstream during sediment transport depends on water flow. Water flow is unpredictable and is impacted not only by the local topography (such as slope), but also by the water level, which is in turn affected by precipitation (or a lack thereof). The majority of variations in water level are caused by weather phenomena, such rainfall.

Learn more about sediment transport and downstream:

https://brainly.com/question/30867281

#SPJ4

The complete question is:

The mechanism by which a particle is transported downstream is a PRIMARILY function of

A. particle color and density

B. fluid temperature and particle color

C. river width and current speed

D. particle size and fluid velocity

This situation can be described as a bargaining failure.

In bargaining, two parties negotiate to reach an agreement that satisfies both sides. In this case, Joan Petty, the human resource manager, made an initial offer of $2,750 per month to Billy Self for the position of an inventory manager. However, Billy was not aware that Joan was willing to offer an additional $750 per month. Consequently, Billy walked away from the job offer without exploring the possibility of negotiating for a higher salary.

The key aspect that characterizes this situation as a bargaining failure is the lack of effective communication between the parties involved. Joan did not convey the full extent of her willingness to offer a higher salary to Billy, and as a result, they could not engage in a negotiation that might have led to a mutually acceptable agreement.

Had Billy been aware of Joan's willingness to offer an additional $750 per month, he could have potentially negotiated for a higher salary or discussed other aspects of the job offer to reach a more favorable outcome. However, due to the incomplete information shared during the bargaining process, no agreement was reached, resulting in a bargaining failure.

to know more about bargaining failure refer here: https://brainly.com/question/14986865#

#SPJ11

Item 1 can be described as Phenotype

Item 2 can be described as Genotype

Item 3 can be described as An allele

Item 4 can be described as Dominant

Item 5 can be described as Recessive

Item 6 can be described as Recessive.

The phenotype is the set of observable characteristics or traits of an organism.

The term phenotype covers the organism's morphology or physical form and structure, its developmental processes, its biochemical and physiological properties, its behavior, and the products of behavior.

Phenotype can also refers to an individual's observable traits, such as height, eye color and blood type.

To determine a phenotypic ratio, we look at the alleles of the parent organisms and estimate how often those genes will be exhibited by the offspring. Most times, we know what the alleles will express and how they will look.

Learn more about phenotype at: https://brainly.com/question/902712

#SPJ1

The complete question is attached below: