Category: Science

Vesicles and terminal buttons in a presynaptic neuron.

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The brain is made up of at least one hundred billion neurons, and these neurons are assisted by a variety of supporting cells. Neurons communicate with each other via electrical or chemical messages; the electricity causes the release of chemicals. The electrical impulses are similar to the electricity that flows throughout your home. In your home, you must place a plug into a socket for the electricity to flow into the device you have plugged in. The body is similar to this, and yet it is very different because there are no physical connections between neurons in the brain. Instead of one neuron touching another and sending a message via a physical connection, neurotransmitters are released into a space called the synaptic cleft.
Answer the following questions:

Describe vesicles and terminal buttons in a presynaptic neuron. How are neurotransmitters released into the synaptic cleft, and what happens to them after they are released? What must happen at the postsynaptic neuron to ensure binding?
Neurons are released into the synaptic cleft where the neurotransmitter diffuses throughout the space. What are the advantages and disadvantages of not having neurons connected to each other?
What role do the supporting cells play in neurotransmission? Describe the role of at least two different types of supporting cells. Are the supporting cells as important as the neurons when it comes to neural communication?

Vesicles and terminal buttons in a presynaptic neuron.

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The brain is made up of at least one hundred billion neurons, and these neurons are assisted by a variety of supporting cells. Neurons communicate with each other via electrical or chemical messages; the electricity causes the release of chemicals. The electrical impulses are similar to the electricity that flows throughout your home. In your home, you must place a plug into a socket for the electricity to flow into the device you have plugged in. The body is similar to this, and yet it is very different because there are no physical connections between neurons in the brain. Instead of one neuron touching another and sending a message via a physical connection, neurotransmitters are released into a space called the synaptic cleft.
Answer the following questions:

Describe vesicles and terminal buttons in a presynaptic neuron. How are neurotransmitters released into the synaptic cleft, and what happens to them after they are released? What must happen at the postsynaptic neuron to ensure binding?
Neurons are released into the synaptic cleft where the neurotransmitter diffuses throughout the space. What are the advantages and disadvantages of not having neurons connected to each other?
What role do the supporting cells play in neurotransmission? Describe the role of at least two different types of supporting cells. Are the supporting cells as important as the neurons when it comes to neural communication?

The scientific method typically provides structure to the way things are studied

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. The scientific method typically provides structure to the way things are studied. However, because humans and our minds are so complex, is the scientific method a limitation to our psychological findings because it is such a precise approach to an unpredictable process?

 

A Multimedia presentation on a current science topic

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Choose any current science topic and create a Multimedia presentation with the following requirements. Use the attached rubric to guide you.

At least 6 slides, and between 5 and 10 minutes.
Present the problem(s) associated with the topic
Present the possible solution(s) to the problem(s)
Present the disadvantage(s) of the solution(s)
Present the advantage(s) of the solution(s)
Summarize your findings.

 

Aerospace power and sea power theorists

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Of the following aerospace power and sea power theorists, who are the most relevant for today’s challenging strategic environment? Pick one aerospace power theorist and one sea power theorist to discuss: Aerospace Power Theorists: Giulio Douhet, Hugh Trenchard, Billy Mitchell, or John Warden. Sea Power Theorists: Alfred Thayer Mahan or Julian Corbett. Identify the major elements of their theories and explain why they are more relevant than their colleagues.

 

The allegories of the Sun

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What are the allegories of the Sun, the Divided Line, and the Cave? How does Socrates use the allegories to explain the role of the Guardians? What is the Form of the Good? How is the search for the form of the good different than other forms of knowledge? What is the obligation of the Philosopher King to the people still in the metaphorical cave? Do you find these allegories to be compelling?

The sociological reasons for the difference in earth scientists’ views on evolution

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Analyze the sociological reasons for the difference in earth scientists’ views on evolution and the American public’s view of evolution. Why is there such a wide gap between what scientists know and what the public believes? Why are people so reluctant to accept the scientific explanation on this specific issue when they accept other scientific theories? How does the concept of mutual deviantization apply to this phenomenon?

 

 

When Birds Stopped Flying

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From insects to birds, all flying organisms share some morphological similarities. In a short paragraph (three sentences), explain their main similarity and why?

Despite the several advantages of flying, some birds have evolved flightless. According to the video, “When Birds Stopped Flying” (Duration 07:31), what other adaptations have evolved in this group that explains their flightless condition? Can you think of others?

The process of setting up a closely held corporation

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1. Discuss the process of setting up a closely held corporation. Also discuss advantages and disadvantages of the closely held corporation.

2. Discuss antitrust laws and their relationship to Major League Baseball. Why is this anomaly present and will it continue to be upheld by courts? This is the link for the required information for this question https://www.espn.com/espn/print?id=1290707&type=Story&imagesPrint=off

3. What is the NLRB? Describe its jurisdiction and powers?

4. Discuss discrimination in employment – specifically gender and race discrimination and the glass ceiling concept.

How science works to solve environmental problems

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How does science work to solve environmental problems? Explain the steps in the scientific process as it relates to an environmental problem and describe one potential challenge to solving that problem. And…

Why is it important to consider the natural, social, cultural and economic environments (address each individually) in any environmental problem-solving?