Imagine a tree is found that has a "heart" that contracts to pump water through the...
Homework Answers
The heart would be located in the 'roots' of the tree because the roots take water up to the leaves while the sugars produced by the leaves are brought back down to the roots.
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Imagine a tree is found that has a "heart" that contracts to pump
water through the...
Imagine a tree is found that has a "heart" that contracts to pump water through the...
Imagine a tree is found that has a "heart" that contracts to pump water through the xylem instead of relying on transpiration to move water How would the structure of the leaves from a “hearted” tree differ from the leaves of a regular, “heartless” tree?
Why do you think some animals have a myogenic heart (self-excitable found in Vertebrates and some...
Why do you think some animals have a myogenic heart (self-excitable found in Vertebrates and some Mollusks like cephalopods) while others have a neurogenic heart (controlled by nerve impulses from the brain found in Annelids, and Arthropods)? Explain your reasoning. Lungfishes have a rudimentary air sac they use when their environment temporarily becomes anaerobic. How do you think their circulatory system is different from other fish? Construct a drawing to emphasize your view. In giraffes, the head could be up...
Problem 4.070 SI The figure below shows a turbine-driven pump that provides water to a mixing...
Problem 4.070 SI The figure below shows a turbine-driven pump that provides water to a mixing chamber located dz 5 m higher than the pump, where -20 kg/s. Steady-state operating data for the turbine and pump are labeled on the figure. Heat transfer from the water to its surroundings occurs at a rate of 2 kW. For the turbine, heat transfer with the surroundings and potential energy effects are negligible. Kinetic energy effects at all numbered states can be ignored....
Imagine that your organization has asked you to move to another country and perform a job...
Imagine that your organization has asked you to move to another country and perform a job that is critical to the success of the organization. Note: You will be given the opportunity to take your family with you on this assignment. For this discussion forum, 1.Select a country where you could perform a foreign work assignment. 2.Explain and discuss why it is critical for employees (and their families) to have cultural training before embarking on an overseas assignment. 3.Also discuss...
mately 100 n+0.00 Water must be pumped through a pipe network that has a requaired head of approx where Q has units of gpm An engineer is considering using a centrifugal pump operating at 1 ugal p...
mately 100 n+0.00 Water must be pumped through a pipe network that has a requaired head of approx where Q has units of gpm An engineer is considering using a centrifugal pump operating at 1 ugal pump operating at 11s0 rpm with three possible impeler diameters: 6·T, and ir A) If at least 160 gpm of flow is needed, which (if any) of the impellers will meet this n 8) Estimate the pump efficiency and motor power for the 6...
1. You are analyzing a large family tree with many generations. This family has several members...
1. You are analyzing a large family tree with many generations. This family has several members that have an X-linked recessive trait. Would you expect to see this trait equally among the males and females in this family? Explain. 2. Many mammals use X and Y sex chromosomes to determine chromosomal sex. Compare the structures of the X and Y chromosomes. Are they homologous? Why or why not? (You may have to use the textbook to answer this question.)
Water flows through a pipe at a velocity of 1 m/s. The pipe has a relative roughness of 0.001 and...
Water flows through a pipe at a velocity of 1 m/s. The pipe has a relative roughness of 0.001 and has a diameter of 100 mm 1. Using the information provided above and in the Moody diagram, drag and drop circle 1 (located below the graph) where the corresponding Reynolds number and relative roughness intersect 2. Drag and drop circle 2 to the point on the y axis at which you would measure the friction factor () v 10-6 m2/s...
Crimes of the Heart: A Case Study on Cardiac Anatomy Tiffaney is worried about her newborn...
Crimes of the Heart: A Case Study on Cardiac Anatomy Tiffaney is worried about her newborn son. Ever since she brought Caleb home from the hospital it has been so hard to get him to eat and he seems to be breathing too hard all the time. She stopped breast-feeding and tried every bottle and formula on the market, but nothing has worked. So, at his one month check-up, her stomach is in knots as they place Caleb on the...
Let us assume that the water table on the island is 2 m above sea level. Then, t 2 m, so 2 m/0.03...
Groundwater
Let us assume that the water table on the island is 2 m above sea level. Then, t 2 m, so 2 m/0.03-h 66.67 m. Thus we can predict that if we drill a hole on the island we would not come to salty groundwater for approximately 67+ 2 meters, or about 69 m from the top of the water table. This would be 67 m below sea level. a] Suppose you found a place on the island where...
You are studying a newly discovered bacterium. This bacterium has an antiport called PmpZ. PmpZ is...
You are studying a newly discovered bacterium. This bacterium has an antiport called PmpZ. PmpZ is located on the bacterium plasma membrane, and uses energy from light to pump ions across the membrane. PmpZ normally transports 2 potassium (K^+) ions inward for every 1 magnesium (Mg^2+) ion transported outward. You first create an artificial lipid bilayer that contains no proteins. (Recall that lipid bilayers will spontaneously form spherical lipid vesicles spontaneously in an aqueous environment.) If you create a situation...
Why do you think some animals have a myogenic heart (self-excitable found in Vertebrates and some Mollusks like cephalopods) while others have a neurogenic heart (controlled by nerve impulses from the brain found in Annelids, and Arthropods)? Explain your reasoning. Lungfishes have a rudimentary air sac they use when their environment temporarily becomes anaerobic. How do you think their circulatory system is different from other fish? Construct a drawing to emphasize your view. In giraffes, the head could be up...
Problem 4.070 SI The figure below shows a turbine-driven pump that provides water to a mixing chamber located dz 5 m higher than the pump, where -20 kg/s. Steady-state operating data for the turbine and pump are labeled on the figure. Heat transfer from the water to its surroundings occurs at a rate of 2 kW. For the turbine, heat transfer with the surroundings and potential energy effects are negligible. Kinetic energy effects at all numbered states can be ignored....
mately 100 n+0.00 Water must be pumped through a pipe network that has a requaired head of approx where Q has units of gpm An engineer is considering using a centrifugal pump operating at 1 ugal pump operating at 11s0 rpm with three possible impeler diameters: 6·T, and ir A) If at least 160 gpm of flow is needed, which (if any) of the impellers will meet this n 8) Estimate the pump efficiency and motor power for the 6...
Water flows through a pipe at a velocity of 1 m/s. The pipe has a relative roughness of 0.001 and has a diameter of 100 mm 1. Using the information provided above and in the Moody diagram, drag and drop circle 1 (located below the graph) where the corresponding Reynolds number and relative roughness intersect 2. Drag and drop circle 2 to the point on the y axis at which you would measure the friction factor () v 10-6 m2/s...
Groundwater
Let us assume that the water table on the island is 2 m above sea level. Then, t 2 m, so 2 m/0.03-h 66.67 m. Thus we can predict that if we drill a hole on the island we would not come to salty groundwater for approximately 67+ 2 meters, or about 69 m from the top of the water table. This would be 67 m below sea level. a] Suppose you found a place on the island where...
You are studying a newly discovered bacterium. This bacterium has an antiport called PmpZ. PmpZ is located on the bacterium plasma membrane, and uses energy from light to pump ions across the membrane. PmpZ normally transports 2 potassium (K^+) ions inward for every 1 magnesium (Mg^2+) ion transported outward. You first create an artificial lipid bilayer that contains no proteins. (Recall that lipid bilayers will spontaneously form spherical lipid vesicles spontaneously in an aqueous environment.) If you create a situation...
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