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Please write the Experimental and the Null Hypothesis for the following scenerio...
August 1, 2013
Light that Moves and Molds Gels
Pitt research team demonstrates gels that can be moved, controlled by light

PITTSBURGH—Some animals—like the octopus and cuttlefish—transform their shape based on environment, fending off attackers or threats in the wild. For decades, researchers have worked toward mimicking similar biological responses in non-living organisms, as it would have significant implications in the medical arena.
Now, researchers at the University of Pittsburgh have demonstrated such a biomimetic response using hydrogels—a material that constitutes most contact lenses and microfluidic or fluid-controlled technologies. Their study, published in Advanced Functional Materials, is the first to show that these gels can be both reconfigured and controlled by light, undergoing self-sustained motion—a uniquely biomimetic behavior.

Together with Olga Kuksenok, research associate professor in the Swanson School, Balazs experimented with a newer type of hydrogel containing spirobenzopyran molecules. Such materials had been previously shown to form distinct 2-D patterns on initially flat surfaces when introduced to varying displays of light and are hydrophilic in the dark but become hydrophobic under blue light illumination. Therefore, Balazs and Kuksenok anticipated that light could be a useful stimulus for tailoring the gel’s shape.

Using computer modeling, the Pitt team demonstrated that the gels “ran away” when exposed to the light, exhibiting direct, sustained motion. The team also factored in heat—combining the light and local variations in temperature to further control the samples’ motions. Controlling a material with light and temperature could be applicable, Balazs said, in terms of regulating the movement of a microscopic “conveyor belt” or “elevator” in a microfluidic device.


Experimental Hypothesis:
Null Hypothesis:

Answer:

PITTSBURGH—Some animals—like the octopus and cuttlefish—transform their shape based on environment, fending off attackers or threats in the wild. For decades, researchers have worked toward mimicking similar biological responses in non-living organisms, as it would have significant implications in the medical arena.

Now, researchers at the University of Pittsburgh have demonstrated such a biomimetic response using hydrogels—a material that constitutes most contact lenses and microfluidic or fluid-controlled technologies. Their study, published in Advanced Functional Materials, is the first to show that these gels can be both reconfigured and controlled by light, undergoing self-sustained motion—a uniquely biomimetic behavior.

“Imagine an apartment with a particular arrangement of rooms all in one location,” said lead author Anna Balazs, Pitt Distinguished Professor of Chemical and Petroleum Engineering in the Swanson School of Engineering. “Now, consider the possibility of being able to shine a particular configuration of lights on this structure and thereby completely changing not only the entire layout, but also the location of the apartment. This is what we’ve demonstrated with hydrogels.”

Together with Olga Kuksenok, research associate professor in the Swanson School, Balazs experimented with a newer type of hydrogel containing spirobenzopyran molecules. Such materials had been previously shown to form distinct 2-D patterns on initially flat surfaces when introduced to varying displays of light and are hydrophilic (“liking” water) in the dark but become hydrophobic (“disliking” water) under blue light illumination. Therefore, Balazs and Kuksenok anticipated that light could be a useful stimulus for tailoring the gel’s shape.

Using computer modeling, the Pitt team demonstrated that the gels “ran away” when exposed to the light, exhibiting direct, sustained motion. The team also factored in heat—combining the light and local variations in temperature to further control the samples’ motions. Controlling a material with light and temperature could be applicable, Balazs said, in terms of regulating the movement of a microscopic “conveyor belt” or “elevator” in a microfluidic device.

“This theoretical modeling points toward a new way

can someone please help me with this!! ​

Answer the following questions based on the graph above you just completed.

a. What is the independent variable?

b. Why is this the independent variable?

c. What is the dependent variable?

d. Why is this the dependent variable?

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Please answer correctly​

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Our solar system's location relative to the center of the Milky Way is a little less than:

1/2 of the Milky Way's width away from the center.
1/4 of the Milky Way's width away from the center.
1/10 of the Milky Way's width away from the center.
1/3 of the Milky Way's width away from the center.

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What evidence best supports the Endosymbiotic Theory which states that current cell organelles like mitochondria and chloroplasts were once prokaryotic cells consumed by other prokaryotic cells? *​

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A. single-celled eukaryotes that are usually found in
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B. living, single celled organism that are the most
common pathogen and can be treated with antibiotics
C. multicellular organism that usually is found on the
surface of skin and warm, moist, and dark places
D. non-living pathogen that can't be treated with
antibiotics and reproduces with a host


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° True or false?

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A cell with more mitochondria than a sperm cell would be a skin cell.
O True
O False

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Was his hypothesis correct?

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Question 2 of 10
Which of these best describes a scientific theory?
O A. A hypothesis that is proven true with the results of one experiment
O B. An educated guess about an aspect of the physical world
C. The conclusion of one famous scientist about a hypothesis
D. An explanation that is supported by many different experiments

write a brief note about the nasal cavity​

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where does the glucose that is released into the blood ultimately end up (2 places)?

What is the dependent variable

What is a materials scientist?

What do we call the variable manipulated or tested by the investigator?

1. the independent variable

2. the constant variable

3. in inference variable

4. the dependent variable