Which two particles add to make the mass number?

a. protons

b. neutrons

Answer:

It needs to gain a Hydrogen atom to eliminate the double bond between the two carbons.  

Explanation:

Unsaturated fat has one or more double bonds in its molecule. Saturated fat has a single bond. If you want an unsaturated fat to become saturated it needs to gain more more hydrogen atoms which will eliminate the double bonds between carbons of the unsaturated fat.

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Option D) Children are more likely to eat certain foods after seeing a parent eat them.

Research on food and hunger behaviors has consistently indicated that children are more likely to eat certain foods after seeing a parent eat them. This phenomenon, known as observational learning or social modeling, has been widely documented in various studies. Children tend to imitate their parents' eating behaviors and food choices, and parental eating habits can significantly influence children's food preferences and consumption patterns.

Observational learning is a fundamental aspect of human behavior, particularly during childhood, when children learn and acquire various behaviors and preferences from their immediate environment. Children often look to their parents as role models and are highly influenced by their actions and behaviors, including eating habits. Research has shown that when children observe their parents consuming specific foods, they are more inclined to try and accept those foods themselves, even if they were initially hesitant or resistant.

Therefore, the statement that children are more likely to eat certain foods after seeing a parent eat them has indeed been indicated by research on food and hunger behaviors. Therefore the correct option is D

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The Question was Incomplete, Find the full content below :

Which of the following statements has NOT been indicated by research on food and hunger behaviors?

A) Forcing children to eat specific foods often has a negative effect on food preference.

B) People usually consume larger amounts of food in social settings.

C) Stress may cause people to decrease their craving for carbohydrates.

D) Children are more likely to eat certain foods after seeing a parent eat them. explain in 150 words

Answer:

B.

fossil fuels are very scarce on earth and cannot be replaced burning them increases greenhouse gasses such as (carbon dioxide - CO2, water vapor and methane) when these are released into the environment they lead to global warming- its one of the most direct and dangerous effect humans have

The digestive system maintains homeostasis by ensuring that the stomach environment has the right pH balance.

The body uses both positive and negative mechanisms to carry on homeostasis. When the body catches an imbalance, the various systems work together to counteract and restore correct equilibrium. The bacterial flora in the intestines is crucial to homeostasis in the body. They not only break down food so the nutrients can be absorbed.

In the digestive system, homeostasis is attained by a series of procedures controlled by various organs and tissues. The digestive system maintains homeostasis by creating the proper pH balance in the gastric environment. In addition, by continuing the correct enzyme ratio.

So we can conclude that The actuation of the digestive system enzyme pepsin is an example of a positive feedback mechanism

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Food poisoning would cause an intense dehydration and upset of the homeostatic process of the body.

In the digestive system, homeostasis refers to the maintenance of a stable internal environment in response to external changes, such as the ingestion of food. When food poisoning occurs, the body's normal homeostatic processes are disrupted.

However, if the food poisoning is severe, the body may not be able to effectively restore homeostasis, leading to dehydration and other complications. In these cases, medical intervention may be necessary to help the body regain its normal balance.

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Answer:

Answer: Lactic acid building up causing sore muscles

Explanation:

Got it right on the test.

An example of anaerobic respiration is lactic acid building up, causing sore muscles. The correct option is B.

Anaerobic respiration is respiration that occurs in the absence of oxygen. When we exercise or run, more amount of oxygen is needed, so there is less oxygen remaining for the reactions, these reactions occur in absence of oxygen.

Thus, the correct option is B.

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Answer: C. When they mixed, some of the bacteria from strain X obtained plasmids from strain Y, these plasmids gave them DNA that allowed  them to resist the antibiotic.

Explanation:

Conjugation is a mode of sexual reproduction used by some strains of bacteria to reproduce. In this the bacteria transfers the genetic material to another bacteria through direct contact. In this one bacteria act as a donor and another one act as a recipient.

The strain X which was affected by the antibiotic might have mixed with the strain Y, as a result of this strain X being not resistant with the antibiotic died. But when this bacterial strain got mixed with the strain Y, which is antibiotic resistant. The strain X might received the antibiotic resistant property from strain Y through sexual reproduction by the mode of conjugation. In this plasmid DNA transfer from strain Y to strain X, helped strain X to develop antibiotic resistance, and further helped strain X to survive.

Structure of genes:

A gene is composed of a nucleotide chain, which is made up of DNA strands. Genes are composed of nucleotides.

DNA consists of A, T, G, and C nucleotides. Hydrogen bonds form with opposite-strand nucleotides, and phosphodiester bonds form with adjacent-strand nucleotides

Nucleotides are composed of nitrogenous bases (A, T, G, and C), phosphate, and pentose sugar

Genes consist of two types of elements: core elements and regulatory elements.

In fact, core sequences or elements play an important role in protein synthesis. Gene expression is maintained by regulatory elements. 

Among the most important elements of DNA are exons. The regulatory elements of a gene are sequences like promoters, enhancers, and silencers.  

Function of genes:

A gene's primary function is to form or manufacture proteins, but it's not the only one. Indeed, it's partially true. 

Some genes do not produce protein even though microRNAs, for example, are tiny ribonucleic acids formed from some genes, but they don't produce proteins. Instead, it regulates gene expression.

A gene carries instructions that determine your features, such as eye colour, hair colour, and height. For each feature, there are several gene variations. 

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The number of possible connections among the neurons of the brain is about 500 trillion (B).

Neurons are specialized cells that process and transmit information in the brain. Each neuron is connected to other neurons through synapses, which are the sites of communication between neurons. The number of possible connections between neurons in the brain is incredibly large.

According to estimates, the human brain has about 100 billion neurons, and each neuron can form connections with up to 10,000 other neurons. This means that the total number of possible connections in the brain is about 1 quadrillion (10^15).

However, not all possible connections are formed in the brain, and the actual number of connections is estimated to be around 150 trillion (10^14). Therefore, the correct answer to the question is an option (B) about 500 trillion.

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Due to weight concentration, the ingredient that is often listed first on a cosmetic product label is: option A) Water

Ingredient are listed in descending order of their weight in the product, so water is typically listed first because it usually makes up the highest percentage of the product's weight.

A) Due to its weight concentration, water is frequently mentioned as the first ingredient on a cosmetic product label. This is due to the fact that water typically makes up the majority of the ingredients in cosmetic formulations, particularly for items like lotions, creams, and serums. Preservatives, emulsifiers, and other substances are typically added in lower quantities, such as oils. It is crucial to remember that the FDA regulates and strictly enforces the order of components on labels. With the item with the highest concentration mentioned first, the ingredients are given in descending order by weight.

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Answer:

\(structure \: A \: is \: chromosome\)

\(structure \: B \: is \: centromere\)

\(structure \: C \: is \: chromotid\)

Explanation:

I believe my answer is correct but I'm not 100% sure. I attached some images that may help!

hope this helps!

pls like if it does help!

Answer:

The force does too

Explanation:

From the universal law of gravitation, F ∝ m1m. Since force is directly proportional to mass, if the mass of either of the object increases, the force also increases.

Answer:

Dune vegetation would miss a significant source of nutrients if sea turtles go extinct and would not be as stable and not large enough to support the dunes, resulting in increased erosion.

Explanation:

While their range is wide, due to extensive egg collecting and bycatch fisheries, the numbers of leatherback turtles have decreased dramatically over the past century.

Answer:c

Explanation:

it will kill the animals that eat the grass and them

Answer:

The cornea is the only part of a human body that has no blood supply; it gets oxygen directly through the air. The cornea is the fastest healing tissue in the human body, thus, most corneal abrasions will heal within 24-36 hours.

Nuclear reactions do indeed occur in the human body, but the body does not use them.

Comparing the number of colonies on different pairs of plates provides insights into the experimental outcomes. The comparisons help assess the effects of adding plasmid DNA, antibiotics (such as Ampicillin), and chromogenic substrates (like X-gal) to the growth medium.

The results indicate successful plasmid uptake, antibiotic selection, and gene expression, providing information about the experimental success and the presence of desired genetic modifications.

a. LB+ plasmid and LB- plasmid:

Comparing the number of colonies on these plates allows us to assess the effect of adding plasmid DNA to the LB medium. If there are significantly more colonies on the LB+ plasmid plate compared to the LB-plasmid plate, it suggests that the plasmid DNA successfully transformed the bacterial cells and allowed them to grow. The presence of colonies on the LB+ plasmid plate indicates successful plasmid uptake and expression.

b. LB/Amp-plasmid and LB/Amp/X-gal-plasmid:

This comparison helps determine the impact of adding the antibiotic Ampicillin (Amp) and the chromogenic substrate X-gal to the LB medium containing plasmid DNA. If there are more colonies on the LB/Amp-plasmid plate compared to the LB/Amp/X-gal-plasmid plate, it suggests that Ampicillin successfully selected for bacterial cells that have taken up the plasmid. Additionally, if blue/white colonies are visible on the LB/Amp/X-gal-plasmid plate, it indicates successful expression of the lacZ gene, which encodes β-galactosidase.

c. LB/Amp+plasmid and LB/Amp-plasmid:

This comparison helps assess the impact of adding the antibiotic Ampicillin to the LB medium, regardless of plasmid presence. If there are significantly more colonies on the LB/Amp+plasmid plate compared to the LB/Amp-plasmid plate, it suggests that Ampicillin effectively selected for bacterial cells that have taken up the plasmid.

d. LB/Amp/X-gal+plasmid and LB/Amp/X-gal-plasmid:

This comparison focuses on the impact of adding both Ampicillin and X-gal to the LB medium containing plasmid DNA. If there are more colonies on the LB/Amp/X-gal+ plasmid plate compared to the LB/Amp/X-gal-plasmid plate, it suggests that Ampicillin effectively selected for bacterial cells that have taken up the plasmid. Furthermore, the presence of blue/white colonies on the LB/Amp/X-gal+plasmid plate indicates successful expression of the lacZ gene, which encodes β-galactosidase.

Overall, these plate comparisons provide information about plasmid uptake, antibiotic selection, and gene expression in bacterial cells, enabling insights into the success of the experimental procedures and the presence of desired genetic modifications.

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Answer:

Chromatid refers to one half of the chromosome. Centromeres are the center of the chromosomes, where spindles attach during mitosis.

Answer:

A

Explanation:

the first one

The effects of an unsafe level of coliform bacteria include:

1. Water contamination: Unsafe levels of coliform bacteria indicate that the water supply may be contaminated with fecal matter, potentially carrying harmful pathogens.
2. Health risks: Consuming water with high levels of coliform bacteria can lead to gastrointestinal illnesses, such as diarrhea, nausea, and vomiting, especially in individuals with weakened immune systems.
3. Environmental impact: High levels of coliform bacteria in natural water sources can harm aquatic life and disrupt ecosystems.

To prevent these effects, it is important to monitor water sources and ensure that proper sanitation and water treatment measures are in place.

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Answer:

When molecules move from areas of greater concentration to areas of lesser

concentration.

Answer:

2 cyclosis

Explanation:

cyclosis is related to the movement of and in the cytoplasm

The structure C uses glucose to produce usable energy for the cell this structure is called the Mitochondria. Thus, the correct option for this question is A.

A Mitochondria may be defined as a type of double membrane-bound cell organelles found in the cytoplasm of the cell. It was first recognized by Kolliker in muscle cells of insects in 1880. R. Altmann described them in detail and name them bioplast.

Mitochondria are known as the "Powerhouse of the cell". This is because the energy required for various metabolic activities is released by mitochondria in form of ATP. ATP is known as the "Energy currency of the cell".

Therefore, a mitochondria is represented by a structure C that uses glucose to produce usable energy for the cell. Thus, the correct option for this question is A.

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The beaks of birds are well suited to the type of food they eat as a result of adaptations that occur through natural selection.

Natural selection is the process by which organisms with favorable traits are more likely to survive, reproduce, and pass on their advantageous characteristics to their offspring. Over generations, these traits become more prevalent in the population, leading to a closer fit between the organisms and their environment.

In the case of bird beaks, these adaptations have allowed birds to effectively exploit various food sources within their habitats. For instance, birds that feed on insects may have slender, pointed beaks that enable them to probe crevices and snatch their prey. Conversely, birds that consume seeds or nuts often possess strong, sturdy beaks capable of cracking open hard shells.

As birds with well-adapted beaks are more successful in finding and consuming food, they are more likely to survive and reproduce. Consequently, the genes responsible for these advantageous beak shapes are passed on to the next generation. Over time, the population becomes increasingly specialized in acquiring and processing their preferred food sources, creating a more harmonious fit between the birds and their environment.

In summary, bird beaks are well suited to their preferred food sources due to adaptations resulting from natural selection. This process promotes a closer fit between organisms and their environment, as those with beneficial traits survive and pass them on to future generations.

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The short film "Ties That Bind" is about the unbreakable bonds of friendship that transcend time and distance. The film follows two childhood friends who are separated when one of them moves away.

The message of "Ties That Bind" is that true friendship can withstand any obstacle, and that even when life takes us in different directions, the connections we make with others can shape who we are and help us through difficult times. The film celebrates the power of human connection and the importance of cherishing the relationships that enrich our lives.

It encourages us to reach out to those we care about and to stay connected, even when it seems difficult or impossible. Ultimately, "Ties That Bind" reminds us that friendship is a precious gift and that the bonds we forge with others can bring us joy, comfort, and a sense of belonging that lasts a lifetime.

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The correct question is:

Bonds of friendship

What title would you give the short film? What is the short film about? what is the message of the short film?

Answer:

Electromagnetic energy that is emitted from the sun is what drives producers in ecosystems

Explanation: