Identify the organelle pictured to the right and include 3 things it does for the cell

Explanation:

In thermoplastics, the arrangement of monomeric units is linear and in thermosetting plastics, it is cross-linked. Thermoplastics are usually soft, weak and less brittle, so can get soften on heating and stiffen on cooling. They can be melted, remoulded and recycled easily.

The plasma membrane forms the cell boundary while the cell components include:

The cell is the smallest functional unit of a living organism which can exist alone.

This is because it contains organelles which are membrane-bound and is surrounded by a membrane called plasma membrane.

The plasma membrane monitors the substances that moves in and out of the cell.

This characteristics makes it a semi-permeable membrane.

The cell components include:

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In an adaptive immune response to a pathogen, the term clonal selection describes the fact that only those lymphocytes that can recognize that particular pathogen and respond to it are selected to participate in the immune response. Clonal expansion describes the proliferation and subsequent differentiation of these few original lymphocytes to provide large numbers of effector lymphocytes.

During an adaptive immune response, lymphocytes are crucial in recognizing and eliminating pathogens. This process begins with the recognition of a specific antigen by the antigen receptors on lymphocytes.

When a lymphocyte encounters an antigen that it can bind to, it undergoes clonal selection. This means that only those lymphocytes with receptors that can recognize the antigen are chosen to participate in the immune response.

Once selected, these lymphocytes undergo clonal expansion. This is the process where the selected lymphocytes undergo repeated cell divisions, resulting in a large population of effector lymphocytes that are capable of attacking and eliminating the pathogen.

This clonal expansion allows for a rapid and effective immune response.

In summary, clonal selection ensures that only lymphocytes capable of recognizing the pathogen are chosen, while clonal expansion generates a large number of effector lymphocytes to combat the invading pathogen.

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The supplied remark indicates that clear-cutting forest trees is the best choice.

For fertilization and maintenance, direct seeding entails planting seeds right into the ground. Virtually any vegetation mixture can be replicated mechanically or manually.

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Answer:

The main difference between operon and regulon is that the genes in an operon occur in the genome contiguously whereas the genes in a regulon occur in different locations within the genome. Furthermore, an operon consists of a set of functionally-related genes while a regulon may consist of several operons

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The number of stomata on entire leaf is 45780 stomata

Since the stomatal density is equal across a leaf that is 20cm² in size. If you count 46 stomata in a fov that is 2,009,600μm².

Since the stomatal density is equal across the leaf, we have that

number of stomata on leaf/area of leaf = number of stomata in fov/area of fov

Given that

So, the number of stomata on the leaf is given by

number of stomata on leaf = number of stomata in fov/area of fov × area of leaf

Substituting the values of the variables inbto the equation, we have

number of stomata on leaf = number of stomata in fov/area of fov × area of leaf

number of stomata on leaf = 46/2,009,600μm² × 20 × 10⁸ μm²

= 920/2,009,600μm² × 10⁸ μm²

= 0.000457803 × 10⁸ stomata

= 45780.3 stomata

≅ 45780 stomata

So, the number of stomata on entire leaf is 45780 stomata

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The non-barbiturate drug that was developed in the search for a safer anxiolytic, but turned out to have the same problems as the barbiturates is Quaalude. This is a type of sedative and hypnotic medication that was commonly prescribed for the treatment of insomnia, anxiety, and muscle spasms.

Barbiturates are a type of drug that belongs to the sedative-hypnotic class. They act as central nervous system depressants and can produce sedation, relaxation, and anxiolytic effects. Some of the most common barbiturates include phenobarbital, secobarbital, and pentobarbital.

Barbiturates can be dangerous because they can produce significant respiratory depression, which can lead to coma and even death. They are also highly addictive and can produce physical dependence in individuals who use them for a prolonged period of time. In addition, they can interact with other medications and substances, such as alcohol, which can increase the risk of overdose and other adverse effects.

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Answer:

NO

Explanation:

They would have formed AB blood type not O.

Answer:

An ion

Explanation:

1. To mitigate the environmental and social cost of LDCs industrializing, the MDCs could do the following actions: Collaborate and fund LDCs in building sustainable infrastructures with low carbon emissions.

Collaborate and fund LDCs in developing renewable energy infrastructures and technology. Share technology and knowledge on sustainability with LDCs.

2. There are many reasons why people do not listen to or follow the news. Some people feel overwhelmed by the amount of information, others do not trust the media, and some may not have access to reliable news sources. A possible solution to the problem of uninformed people could be to encourage media literacy and critical thinking in schools and universities. This would empower individuals to analyze and evaluate news sources and information. Providing free or low-cost access to reliable news sources and investing in investigative journalism could also help to combat misinformation. 3. Here are the steps to find the GR and the population at the end of one year.

GR = (BR + IR) - (DR + ER)= (34 + 82) - (28 + 2)= 86 - 30= 56 The population at the end of one year will be: P1 = P0 + B - D + I - E= 245 + (245 × 56/100) - (245 × 28/100) + (245 × 82/100) - (245 × 2/100)= 245 + 137.2 - 68.6 + 200.9 - 4.9= 509.6 ≈ 510Therefore, the population at the end of one year would be 510.

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Answer:Breeanna

Explanation:

Answer:

Endocytosis enables the cell to take in the bacteriaor fluid droplets from out side the cell and this is important for defense and nutrition respectively. Exocytosis is important for the cell to secrete products like hormones or enzymes to the outside so other body parts can make use of them like insulin and digestive enzymes from the pancreas.

Answer:

Explanation: Endocytosis and exocytosis are important mechanisms for bringing substances into and out of a cell. Cells use exocytosis to secrete proteins. Many of the proteins made on the rough endoplasmic reticulum and processed by the Golgi apparatus are sorted into vesicles destined for the plasma membrane.

The weight of the carcass after an animal has been harvested is referred to as the dressed weight.

This term is used in the meat industry to describe the weight of the animal after it has been slaughtered, skinned, and gutted. The dressed weight does not include the weight of the head, feet, and internal organs. It is also different from live weight, which is the weight of the animal when it was alive, and hanging weight, which is the weight of the carcass after it has been hung and before it has been trimmed and processed. The dressed weight is important in determining the amount of meat that will be available for sale, as well as in calculating the price that will be paid to the producer. Overall, the dressed weight is a crucial factor in the meat industry and is used as a standard measurement for various purposes.

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The circulatory system carries oxygen to different parts of the body, and the respiratory system brings oxygen into the body are the two statements which explain how an earthworm's organ systems help provide its cells with oxygen. Therefore, the correct option is B and C.

The term organ system refers to the group of organs that work together to perform one or more functions of the body.

Earthworms have a closed circulatory system, which means that blood flows within vessels. The circulatory system carries oxygen from the respiratory surface (the skin) to different parts of the body, where it can be used by the cells for respiration.

Earthworms breathe through their skin, which is kept moist by mucus. Oxygen diffuses across the moist skin and into the circulatory system, where it is carried to the cells.

Both A and D are incorrect because both of these systems are not involved in carrying or delivering oxygen to or from the blood. Therefore, the correct option is B and C.

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The Carbon cycle model illustrates the role of photosynthesis and cellular respiration in the cycling of carbon among the biosphere, atmosphere, hydrosphere, and geosphere.

Carbon cycle is the process in which carbon compounds are interchangeable between biosphere, atmosphere, hydrosphere, and geosphere. The steps of the carbon cycle are as follows,

1. Plants absorb the carbon found in the atmosphere for the process of photosynthesis.

2.  Animals consume or eat the same plants and the carbon gets bioaccumulated in the bodies of the animals or we can say that it gets accumulated in the biosphere.

3. Both animals and plants die over time and through decomposition of their remains, carbon is given back into the atmosphere.

4. The carbon which is not released into the atmosphere through decomposition becomes fossil fuel in the geosphere.

5. The fossil fuels are useful for various man-made activities, which eventually gives the carbon back into the atmosphere.

6. There is also exchange of carbon between the ocean or the hydrosphere and the air with the help of phytoplankton.

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Answer:

Protozoans can be parasitic. Malaria is the most significant of the protozoan parasites that infect humans. Malaria is found in tropical and sub-tropical regions of the world. In addition, tropical countries are often affected by poverty, poor sanitation, and inadequate medical facilities. These factors often increase the transmission of parasitic diseases.

In order to create the possibility of generating a trisomy, nondisjunction must occur during meiosis II" is true. Because nondisjunction is a type of genetic error that occurs when a pair of homologous chromosomes fails to separate during meiosis II.

Chromosomal disorders, such as Down syndrome, can occur as a result of nondisjunction. Down syndrome is a condition in which an individual has an extra copy of chromosome 21, resulting in a total of 47 chromosomes instead of the normal 46. This extra chromosome is caused by nondisjunction during meiosis, resulting in one of the daughters cells receiving two copies of chromosome 21 instead of the usual one, and the other receiving none.

Nondisjunction occurs during meiosis when the chromosomes fail to separate correctly. This may occur during either meiosis I or meiosis II. Nondisjunction can occur in any chromosome, resulting in an imbalance of the chromosome number in daughter cells, which can cause genetic disorders.

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Answer:
A universal common ancestor (UCA).

Explanation:
According to Darwin, all life on Earth evolved from a universal common ancestor; that is, the very first organism on Earth. If you pick any living plant or animal on Earth and trace its lineage back far enough, billions of years ago, you will eventually find the UCA. Every species on Earth is united to every other species through their connection with the UCA.

The UCA itself was probably a single-celled organism of some kind and died about 4.1 billion years ago. But through it, every species, be it human, dog, tree, or mushroom, shares this one ancestor with everyone else.

Species also have what's called a lowest common ancestor with each other, much more recent than the UCA. For example, the LCA between humans and chimpanzees probably lived and died around 4 million years ago.

1. Proterozoic 2. Archean 3. Hadean 4. Proterozoic 5. Paleozoic 6. Cenozoic 7. Phanerozoic, 541 million years 8. Quaternary, 2.6 million years 9. 4.6 billion years and many more givne below:

Proterozoic is a geological eon that spanned from 2.5 billion years ago to 541 million years ago. It was the second eon of the Precambrian Supereon and preceded the Cambrian period. During this time, the Earth's atmosphere began to become oxygenated, and the first multicellular organisms began to appear. The earliest known forms of life— bacteria, algae, and eukaryotes—emerged during this time.

10. 251.9 million years
11. 66 million years
12. 186 million years
13. Archean, 3.5 billion years
14. 3.5 billion years
15. Triassic
16. Carboniferous
17. 150 million years
18. 505 million years
19. Cambrian, Ordovician, Silurian, Devonian, and Mississippian.

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Answer: One positive integer is 5 more than the other.  When the reciprocal of the larger number is subtracted from the reciprocal of the smaller the result is 5/14. Find the two integers.

Example: The difference between the reciprocals of two consecutive positive odd integers is 2/15. Find the integers.

Work-Rate Problems

There are two equivalent formulas to choose from when solving work-rate problems. If two people are working together on a job then their work rates add and they can perform the job working together in a shorter amount of time. If we let  = the time it takes a person to complete a task then his work rate is 1/. In other words, he can complete the 1 job in  number of hours. If we let  = the time it takes a second person to complete the task and  = the time it takes for both people working together we get the following work-rate formulas:

Example: Bill’s garden hose can fill the pool in 12 hours.  His neighbor has a hose that can fill the pool in 15 hours.  How long will it take to fill the pool using both hoses?

Example: Joe can complete his yard work in 3 hours by himself.  If his son helps it will only take 2 hours working together. How long would the yard work take if his son was working alone?

Example: Norm and Cliff can paint the office in 5 hours working together. Being a professional painter, Norm can paint twice as fast as Cliff. How long would it take Cliff to paint the office by himself?

Work-Rate Problem: One small water hose takes twice as long to fill the basin as the larger water hose. If the two hoses working together take 40 minutes to fill the basin how long would it have taken each hose to individually fill the basin?

Work-Rate Problem: Joe can texture and paint a room in 8 hours working alone. It would take Bill 6 hours to do the same job. How long will it take them to complete the job working together?

Work-Rate Problem: Two printers, working at the same rate, work together with printing payroll checks for 4 hours before one breaks down. The other takes 3 more hours to complete the job working alone. How long would it have taken only one printer to complete the job?

Uniform Motion Problems (Distance Problems)

We have set up uniform motion problems using the formula  =  *. For the following motion problems, we will need the equivalent formula / =  to set up the equations.

Example: The first leg of Mary’s road trip consisted of 120 miles of traffic.  When the traffic cleared, she was able to drive twice as fast for 300 miles. If the total trip took 9 hours, then for how much time was she stuck in traffic?

Example: A passenger train can travel 20 miles per hour faster than a freight train.  If the passenger train can cover 390 miles at the same time it takes the freight train to cover 270 miles, how fast is each train?

Example: Billy rode his skateboard 24 miles to his grandmother’s house for the day. It was a rough ride so he borrowed his grandmother’s bicycle for the return trip. Going twice as fast on the bicycle the return trip took 2 hours less time.  What was his average speed on the bicycle?

Example: Brett lives on the river 45 miles upstream from town.  When the current is 2 miles per hour he can row his boat downstream to town for supplies and back in 14 hours.  What is his average rowing speed in still water?

Explanation:

Answer:

0 to around 35 shows that as the temperature increases the rate of enzyme activity also increases until a peak enzyme activity that occurs after 40 degrees this is enzymes optimum temperature. after this temperature enzyme activity decreases as the enzyme becomes denatured.

Answer:

Examples of RNA viruses include the AIDS virus HIV, the influenza viruses, ... For example, nearly 80% of all cervical cancers are caused by specific ... Antibodies can also tag viruses so that they can be recognized and destroyed by immune system ... Some viruses cause infected cells to produce another type of cytokines

Explanation:

Answer: temperature

Explanation:

An abiotic factor is every non-living thing.

The non-living entities are referred to as the abiotic factors. Among the given options temperature is the abiotic factor. So option D is correct.

Biotic factors involve interactions between organisms, such as disease, predation, and parasitism, as well as competition between or within species. Living organisms are also biotic factors. There are three main categories of biotic factors: producers, consumers, and decomposers.

Abiotic factors are non-living elements of an ecosystem, including chemical and physical elements. Abiotic elements interact with other abiotic elements.

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Sweet potato crop grows best in the sandy loam soil of the Tombigbee Hills region, hence option D is correct.

A type of soil used for gardening is sandy loam. Sand with varied levels of silt and clay are often the main component of this type of soil. Because sandy loam soil typically allows for good drainage, many people like it for their gardening.

Sandy loam soil is excellent for gardening, growing crops, and developing lush lawns, especially in regions with a lot of clay. Because of its capacity to retain water to feed plants, release nutrients freely to plants, and enable extra water to drain away fast and readily, it is regarded as excellent.

Therefore, Tombigbee Hills region's sweet potato crop grows best in sandy loam soil.

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