Homework Answers
In this case, a food web is generally used to represent the energy flow through an ecosystem. It is mostly represented as a pyramid where trophic levels are observed. At the bottom of the pyramid goes the primary producers such as plant and in the top the consumers. Each trophic level will represents the rate of energy that flows through the different trophic levels. So, the correct answer is b.
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8. What more realistically shows the transfers of energy within an ecosystem? Select one: a. Ecosystem...
1) If you examined predator-prey relationships within an ecosystem and noticed that the removal of predators...
1) If you examined predator-prey relationships within an ecosystem and noticed that the removal of predators also resulted in the die-off of herbivores, what would you suspect occurred? a) Removal of predators would directly lower the number of herbivores. b) The lack of predators could mean that too much primary production occurred. c) Herbivores from another region may have entered the ecosystem and consumed the primary producers, causing death of the original herbivores species. d) Overeating by herbivores could have...
Consider the example of the New England Grassland ecosystem. Identify the false statement. Select one: a....
Consider the example of the New England Grassland ecosystem. Identify the false statement. Select one: a. plant productivity decreased but plant species evenness (number of species) increased when grasshoppers (herbivores) and wood spiders (carnivores) were both present b. loss of wolf spiders allowed for the grasshopper population to increase c. loss of grasshoppers allowed for plant productivity to increase but plant species evenness to decrease d. all individual plant species increased their numbers by having herbivores and carnivores present
Solve the steel question - within 10 minutes One of the disadvantages of welding is Select...
Solve the steel question - within 10 minutes
One of the disadvantages of welding is Select one: a. need more inspection. O b. quicker that bolting. O c. increasing fatigue strength. O d. need less experience than bolting.
What is the hydrologic cycle? the cycle that illustrates how water cycles in, on and above...
What is the hydrologic cycle? the cycle that illustrates how water cycles in, on and above the Earth it illustrates the linear step by step way water moves it is a cycle that started when humans began overconsumption of water Sublimation is the process where --- O ice turns directly into vapor. liquid water turns into vapor. Transpiration is the process where O liquid enters the food chain. O liquid water turns into vapor. plants release water vapor. 1. A...
The Food Marketing Institute shows that of households spend more than per week on groceries. Assume the population...
The Food Marketing Institute shows that of households
spend more than per week on groceries. Assume the
population proportion is and a simple random sample of
households will be selected from the population. Use
z-table.
a. Calculate the sampling distribution of , the
proportion of households spending more than per week on
groceries.
(to 2 decimals)
(to 4 decimals)
b. What is the probability that the sample
proportion will be within of the population proportion
(to 4 decimals)?
eBook The Food Marketing Institute shows that...
Solve the steel question - within 10 minutes Welding if compared with bolting is Select one:...
Solve the steel question - within 10 minutes
Welding if compared with bolting is Select one: a. more economic. O b. produce less rigid structures. c. less range of application. O d. complicate to make changes during erection.
What is the conjugate base of the acid HCIO ? Select one or more: a.Co 2...
What is the conjugate base of the acid HCIO ? Select one or more: a.Co 2 b. CLO, с. НСІ d.HO, 0,(s) + 2N, (e) Which of the following will cause a shift in the equilibrium to the left? Consider the reaction: 2N,O (8) 1. remove NO 2.remove 02 3. add N Select one or more: a. All of 1, 2 and 3 b. 1 and 3 only c.1 and 2 only d. Neither 1.2 or 3 e.2 and 3...
The Food Marketing Institute shows that 17% of households spend more than $100 per week on...
The Food Marketing Institute shows that 17% of households spend more than $100 per week on groceries. Assume the population proportion is p = 0.17 and a sample of 700 households will be selected from the population. (a) Show the sampling distribution of p, the sample proportion of households spending more than $100 per week on groceries. (b) What is the probability that the sample proportion will be within ±0.02 of the population proportion? (c) Answer part (b) for a sample of...
What does this bar chart show that is not so evident in the pie charts? A)...
What does this bar chart show that is not so evident in the pie
charts?
A) This bar chart shows the frequencies of the categorical
variable.
B) this bar chart shows the relative frequencies of the categorical
variable.
C) This bar chart shows the median of the data.
D) this bar chart shows the proportions of the categorical
variable.
The table to the right summarizes the number of game consoles sold in three areas as of the end of 2010....
Why do we need binary variables in our model? Select one or more: a. To represent...
Why do we need binary variables in our model? Select one or more: a. To represent 2 type of variables. b. To represent total amount of money needed for investment. c. To represent yes or no type of variables. (To invest or not) d. To represent number of unit to be produced. What are the application of Operation Research? Select one or more: a. Dispatching Shipment b. Airline scheduling c. All of the above d. Investment Analysis In a production...
Solve the steel question - within 10 minutes
One of the disadvantages of welding is Select one: a. need more inspection. O b. quicker that bolting. O c. increasing fatigue strength. O d. need less experience than bolting.
What is the hydrologic cycle? the cycle that illustrates how water cycles in, on and above the Earth it illustrates the linear step by step way water moves it is a cycle that started when humans began overconsumption of water Sublimation is the process where --- O ice turns directly into vapor. liquid water turns into vapor. Transpiration is the process where O liquid enters the food chain. O liquid water turns into vapor. plants release water vapor. 1. A...
The Food Marketing Institute shows that of households
spend more than per week on groceries. Assume the
population proportion is and a simple random sample of
households will be selected from the population. Use
z-table.
a. Calculate the sampling distribution of , the
proportion of households spending more than per week on
groceries.
(to 2 decimals)
(to 4 decimals)
b. What is the probability that the sample
proportion will be within of the population proportion
(to 4 decimals)?
eBook The Food Marketing Institute shows that...
Solve the steel question - within 10 minutes
Welding if compared with bolting is Select one: a. more economic. O b. produce less rigid structures. c. less range of application. O d. complicate to make changes during erection.
What is the conjugate base of the acid HCIO ? Select one or more: a.Co 2 b. CLO, с. НСІ d.HO, 0,(s) + 2N, (e) Which of the following will cause a shift in the equilibrium to the left? Consider the reaction: 2N,O (8) 1. remove NO 2.remove 02 3. add N Select one or more: a. All of 1, 2 and 3 b. 1 and 3 only c.1 and 2 only d. Neither 1.2 or 3 e.2 and 3...
What does this bar chart show that is not so evident in the pie
charts?
A) This bar chart shows the frequencies of the categorical
variable.
B) this bar chart shows the relative frequencies of the categorical
variable.
C) This bar chart shows the median of the data.
D) this bar chart shows the proportions of the categorical
variable.
The table to the right summarizes the number of game consoles sold in three areas as of the end of 2010....
Why do we need binary variables in our model? Select one or more: a. To represent 2 type of variables. b. To represent total amount of money needed for investment. c. To represent yes or no type of variables. (To invest or not) d. To represent number of unit to be produced. What are the application of Operation Research? Select one or more: a. Dispatching Shipment b. Airline scheduling c. All of the above d. Investment Analysis In a production...
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