a) Write down the attributes of three computer hardware input devices. Discuss
the form of interaction each supports in a computer system.

b) With your knowledge in variations in physical abilities and physical workplaces,
what four practical guidelines would you adapt in your workplace? Explain the
reasons for your choice.

c) Explain the main concerns of Human Computer Interaction

1- An organism which can synthesize organic nutrients (carbohydrates) from inorganic materials via photosynthesis.
Group of answer choices

autotroph

genotroph

heterotroph

mixotroph

2- Which of the following statements most correctly defines homeostasis?
Group of answer choices

Human beings and other animals acquire materials and energy when they eat food.

The ability of a cell or an organism to maintain an internal environment that operates under specific conditions.

It takes energy to maintain the organization of the cell.

3- Which Domain(s) do prokaryotic organisms belong to?
Group of answer choices

Bacteria

Archaea & Bacteria

Eukarya
4- Which of the following statements does NOT describe a characteristic of living organisms?
Group of answer choices

All living organisms consume other living things to obtain their energy.

All living organisms require energy.

All living organisms can sense their environment and respond to it.

All living organisms reproduce.

5- Although the idea seems contradictory, science cannot prove a hypothesis to be true. Why?
Group of answer choices

Science is a human endeavor, and like all human endeavors, it is limited by human understanding.

All true hypotheses will be rejected by the scientific method because they can be proven false.

The scientific method is limited to examination of the natural world.

Future experiments or discoveries may provide data that refute the hypothesis.

6- A good hypothesis
Group of answer choices

Is a testable educated guess at explaining a question.

Is an prediction based on the result of an experiment.

Is a well-supported theory.

Is a testable educated question in response to an observation.

7- Which of the following statements best distinguishes hypotheses from theories in science?
Group of answer choices

Hypotheses and theories are different terms for essentially the same thing in science.

Hypotheses are best guesses while theories are correct answers to questions about nature.

Theories are hypotheses that have been proven.

Hypotheses usually are narrow in scope; theories have broad explanatory power.

8- What must a well-designed scientific experiment be?
Group of answer choices

probable

testable

elegant

repeatable

9- Protons & neutrons are
Group of answer choices

represented by the atomic number.

located in the nucleus of an atom.

both positively charged.

orbit the nucleus of an atom.

10- An electrically neutral atom has the same number of protons as the number of
Group of answer choices

electrons

neutrons

isotopes

subatomic particles.

Preparation Select an area in your field or other area of interest and explore how psychological research has had an impact in solving practical problems in that field. Areas of applied research in psychology include: •Business. •Criminal justice. •Education. •Forensics. •Health. •Mental health treatment. •Public safety. •Sports. •Technology. You might like to search topics in the Journal of Applied Psychology, a scholarly journal in the Capella University Library. It is a good resource both to explore topics and to find articles for your selected topic. Note: The American Psychological Association's Research in Action Web site (linked in the Resources under the Required Resources heading) is also a good resource to explore for topics and articles. Please note that if you use articles from this Web site, they are considered professional but not scholarly sources of information, because they are not peer-reviewed. You can use one of the articles from the site as one of your resources, but you will also need information from two scholarly articles. Select one topic of interest. For example, you might be interested in one of the following topics: •How supervisor training impacts development of future leaders in the workplace. •How research on jury bias has been used to improve courtroom proceedings. •How research in sports performance has been used to improve athlete performance. •How research in product design is used to improve human performance. •How research in product design is used to improve workplace safety. •How research on the effectiveness of a violence prevention program can be applied in the workplace. •These are only a few examples, and you are not limited to these topics. Directions Write a 4–5-page assessment (not including title page and references page) that addresses a human factor problem to which a solution has been researched and applied. Make sure to complete the following: •Present information from three sources of information (at least one professional and at least two scholarly sources) on a topic in applied psychology. •Summarize psychology research findings that have been applied to solve a specific problem or make a specific improvement. •Describe the methods used in the research. •Apply findings from research to solve practical human factor problems. •Describe how the application benefits human health or well-being. •Include a title page and references page (not part of the 4–5 pages of content).

After restriction digestion of a DNA molecule, following fragments were generated - 500 bps, 350 bps, 100 bps and 40 bps. If you load all these fragments on an agarose gel, this fragment_(a)___________ would move farthest and this fragment _(b)___________ would move slowest under the influence of electricity?

(a)500 bps, (b) 40 bps

(a) 40 bps, (b) 350 bps

(a) 40 bps, (b) 500 bps

(a) 100 bps, (b) 350 bps

Which of the following statements about STRs is False?

These are 2-9 base nucleotides long.

Variation in the number of repeats is used in preparing DNA profiles.

They consist of differences in DNA sequences that are only one nucleotide long.

Clusters of STRs are found widely distributed on all human chromosomes.

Which of the following statements is NOT TRUE about findings from Human Genome Project?

15 % of the DNA codes for Protein and rest 85% is non coding DNA

Human genome is made up of 3.2 billion nucleotide base pairs

Repetitive DNA makes most of the non coding DNA.

Our DNA has 20,000-25,000 genes

Which of the following is NOT a goal of Human Genome Project?

To find the location of all genes in our genomes

To compile lists of expressed genes and non expressed sequences.

To find out drugs for the treatment of genetic disorders.

To compare genes and their proteins among different species

Following are the steps of gene therapy. Pick the option from multiple choice that SHOWS the correct order of gene therapy steps:

i. Healthy cells are screened, ii. Normal genes are inserted into the removed body cells by using genetically modified viruses, iii. Cells from infected individual are removed from the body, iv. Healthy cells are returned to the body.

iii, ii, i, iv

ii, i, iii, iv

Reema was diagnosed with pancreas cancer which has now spread to her other body parts like lungs, liver etc. Which ONE of the following terms CAN'T be used to describe her cancer?

Highly likely, her cancer in pancreas started as a benign tumor

Her cancer might have started as malignant tumor

Her cancer is invasive and is spreading to other body parts.

Her cancer is a metastatic cancer

i, ii, iii, iv

iv, iii, ii, I

BACKGROUND:Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)is an enveloped, (+)-sense, single-strandRNA virus that causes coronavirus disease 2019(COVID-19). The coronavirus family is named for the crown-like spikes on the outer surface of the virus and includes viruses that infect many species of animals, including camels, cattle, bats, and cats. The SARS-CoV-2 virus appears to have “spilled”out ofbats,its primaryanimal host,and into humansin December of 2019 in Wuhan, China. COVID-19 symptoms appear 2-14 days after exposure and include fever, dry cough, shortness of breath, chills, muscle pain, headache, diarrhea, and loss of taste or smell.The virus spreads from person-to-person, primarily through droplets that are released when a person coughs or sneezes, but also through indirect contact with secretions. It is highly contagious and spread primarily by symptomatic individuals but also by individuals who are asymptomatic. Researchers are working at a frantic pace to design an effective vaccine and determine whether people who recover from COVID-19 can be re-infected. Coronaviruses have remarkably low mutation rates for RNA viruses. Their replicative enzyme has low fidelity (accuracy) but they have acquired the gene for a 3’-to-5’ exonuclease (ExoN) that removes mismatches during and after RNA synthesis

QUESTIONS TO ANSWER:

1.(5pts) Fill in the missing terms in the replication cycleof SARS-CoV,a virus that is very similar toSARS-CoV-2with respect to its replication.

A.During attachment, the SARS-CoV___________________[name specific viral ligand] binds receptor molecules on the ___________________[name specific structure] of the host cell.

B.During penetration and uncoating, the virion enters the cell by___________________ and then releases its genome into the cytoplasm of the cell through ___________________[name process].

C.During biosynthesis, the ___________________[positive-and/ornegative] –sense genome is replicated using the viral ______________________[name specific enzyme]to produce ___________________[positive-and/or negative] –sense strands. This activity will also produce ___________________[name specific macromolecule] that will be translated to produce viral structural proteins.

D.As a precursor to assembly, viral surface proteins are translatedin the ___________________[name host cell compartment]. These surface proteins will then assemblewith other viral proteins and a copy of the genome.

E.During release, infectiousvirions leave the host cell by the process of ___________________[name cell process].

PLEASE CHECK THIS ESSAY FOR ANY GRAMMAR, SPELLING, AND SENTENCE STRUCTURE. THANK YOU!

On this chapter, Invention: Media and Performance, there were different kinds of interesting artists had been introduced. Among them, I would like to describe the two sensational avant-garde artists, Nam June Paik and John Cage. These two artists influenced and changed the traditional forms of art making. Moreover, they challenged their works with the new experimental and left the huge impact and changed the new generation of the artists.

Nam June Paik, Korean- American, a first video artist who was using a portable videotape recorder, and started the digital revolution in art. Also people recognized him as the “Father of Video Art”. He was a sculptor, composer, performance artist. He had great passions in the musical education, so he moved and traveled to many countries to learn music. Most of his visual art works combined with the sound effects. And he used the furnitures that audiences could easily see and experience in their daily life. One of his work, TV Bra for Living Sculpture in 1969, it was a performance art using video playing on the two small pieces of TV monitors attached like bra to cellist Charolotte Moorman’s chest with the sound of her playing the cello. Nam Jun Paik explained his piece, “By using TV as a bra… the most intimate belonging of human being, we will demonstrate the human use of technology, and also stimulate viewers not for something mean but stimulate their phantasy to look for the new, imaginative and humanistic ways of using our technology.” This performance shows the relationship between the human and the technology, which means he wanted to say humanizing the technology. The technology should not be take over the human life, human should rule over the technology. However his futuristic media art started made the art widely and developed.

Nam June Paik’s great composer mentor, John Cage, was a American experimental composer and gave his opinion to audience that any sound can be music. He broke the history of the classical composition. And one of his famous major work , 4’ 3” , in 1976, which was not a instrument performance, he sat on the piano in the middle of street and closed the lid. He repeated to open and close the lid. During the performance in four minutes and thirty three seconds, he use the stop-watch, which measured each segment. While the performance, people whispers and shuffled in their spots, nature sounds and the cars were passing by them. He wanted people to focus, listen and share the present sounds that surrounded them, which is music. Further more he changed the world by the silence.

In conclusion, the both artists, they found out the ideas from the old ones which were we already experienced in our life. Transforming the intimate objects, furnitures or the noises, which people couldn’t thought about it, made to attract the audiences’ attention and brought the sensation to the world and also influenced many artists. However they left the great mark on the art history that changed a new genre instead of traditional and classical performance.

Please write down your response after reading the paragraphs. (At least 5 sentences long. 150-200 words)

I think that there is a very fine line between technology and human innovation. That fine line is when the technological innovation starts to harm humans. That is not the case here with Geraldine Hamilton’s organs on a chip. With this organ on a chip, there are no humans being hurt. She is using cells to try to stimulate accurate representations of a human body. She is doing this to try to help the world of medicine. Using these chips, she can test cures for certain diseases and even test medicine for specific people. Not all people are the same so she can take specific people’s cells and test if they would react in a fatal or non fatal way to a drug. She gives an example in her talk, when she explains how she had a headache and took an advil, then fifteen minutes later, she was rushed to an emergency room (Hamilton). This shows how differently people can react to different types of medicine. Using this technology could end up saving so many lives in the long run.

I think that there is a very fine line between technology and human innovation. That fine line is when the technological innovation starts to harm humans. That is not the case here with Geraldine Hamilton’s organs on a chip. With this organ on a chip, there are no humans being hurt. She is using cells to try to stimulate accurate representations of a human body. She is doing this to try to help the world of medicine. Using these chips, she can test cures for certain diseases and even test medicine for specific people. Not all people are the same so she can take specific people’s cells and test if they would react in a fatal or non fatal way to a drug. She gives an example in her talk, when she explains how she had a headache and took an advil, then fifteen minutes later, she was rushed to an emergency room (Hamilton). This shows how differently people can react to different types of medicine. Using this technology could end up saving so many lives in the long run. I think that human innovation is gradually becoming dependent on technology but for a good reason. Technology can do many things that humans cannot. We can program technology to do various different things that are more faster and efficient than we could do ourselves. We should use technology to our advantage, to help us improve ourselves and everyone around us. I think that it is a very powerful tool which can help us make the world a better place for everyone. An example is this organ on a chip technology that could potentially eliminate the need for animal testing which has so many ethical issues. Another example is when we use technology to give people prosthetic arms and legs to people who were born with none. I think that technology is an amazing thing, it is helping us make huge strides in medicine and beyond.

Ultrasound is the name given to frequencies above the human range of hearing, which is about 20,000 Hz. Waves above this frequency can be used to penetrate the body and produce images by reflecting from surfaces. In a typical ultrasound scan, the waves travel with a speed of 1,809 m/s. For a good detailed image, the wavelength should be no more than 1.44 mm. What frequency is required?

Calculate the wavelengths in air at 20?C for sounds in the maximum range of human hearing. The speed of sound in air is 343 m/s.

Part A

Calculate the wavelength of a 20-Hz wave.

Express your answer to two significant figures and include the appropriate units.

Part B

Calculate the wavelength of a 20,000-Hz wave.

Express your answer to two significant figures and include the appropriate units.

Part C

What is the wavelength of a 20-MHz ultrasonic wave?

Express your answer to two significant figures and include the appropriate units.