QUESTION 1
Protein secondary structure is maintained by __________ bonds and protein tertiary structure is maintained by _____________
| 1. |
Ionic: Covalent bonds |
|
| 2. |
Hydrogen: R group interactions |
|
| 3. |
R group interactions; hydrogen bonds |
|
| 4. |
ionic bonds; R group interactions |
10 points
QUESTION 2
Humans (Homo sapiens) have existed in their current form for around _______ years, and agriculture began about ____ years ago
| 1. |
50,000; 20,000 |
|
| 2. |
200,000; 10,000 |
|
| 3. |
100,000; 2,000 |
|
| 4. |
500,000; 10,000 |
10 points
QUESTION 3
Water has many unusual and important characteristics that make it a requirement for life to exist as we know it. What best explains the ultimate reasons for these characteristics? That is, what is the underlying reason that explains all the other things about water that we talk about as being required for life?
| 1. |
Water is electronegative |
|
| 2. |
Water is a polar molecule, and the hydrogen atoms are electronegative |
|
| 3. |
the Oxygen atom in water has 8 protons compared to 1 in each in the Hydrogens atoms |
|
| 4. |
The Hydrogens in the water molecule are electronegative, conferring polarity to the molecule |
10 points
QUESTION 4
The dramatic increase in the burning of fossil fuels, among other things, has led to
| 1. |
an increase in ocean pH |
|
| 2. |
an increase in ocean OH- concentration |
|
| 3. |
lower ocean temperatures |
|
| 4. |
an increase in ocean H+ concentration |
10 points
QUESTION 5
In the periodic table of elements, Silicon (element number 14) is in the same column and directly below Carbon (element number 6). This means that Silicon
| 1. |
Has the same number of electrons as Carbon |
|
| 2. |
Has the same number of valence electrons as Carbon |
|
| 3. |
Has the same number of protons as Carbon |
|
| 4. |
Has the same number of neutrons as Carbon |
10 points
QUESTION 6
Adventures in the Anthropocene, Ch 3:Rivers, talks a lot about
Patagonia. Where is Patagonia?
|
Southern South America |
||
|
Northern South America |
||
|
Western Europe |
||
|
Nepal |
10 points
QUESTION 7
Decomposers, especially bacteria, are extremely important in which nutrient cycle?
| 1. |
Carbon |
|
| 2. |
Oxygen |
|
| 3. |
Nitrogen |
|
| 4. |
water (hydrological cycle) |
10 points
QUESTION 8
Elephants and whales exhibit a Type ___ survivorship curve, while oysters and shrimp exhibit a Type ____ survivorship curve
| 1. |
I;III |
|
| 2. |
II;III |
|
| 3. |
III:II |
|
| 4. |
III;I |
10 points
QUESTION 9
In general we can say that organisms that have a Type III survivorship curve usually have ___ selected traits and that large, long lived organisms with delayed reproduction have __ selected traits
| 1. |
competetive;non-competetive |
|
| 2. |
K;r |
|
| 3. |
r;K |
|
| 4. |
S;R |
10 points
QUESTION 10
What percent of the water on the surface of Earth (excluding water vapor or clouds) is "fresh" water (non-salt water)?
| 1. |
20% |
|
| 2. |
10% |
|
| 3. |
5% |
|
| 4. |
2.5% |
In: Biology
Write a java program that asks the user for a positive integer N and then calculates a new value for N based on whether it is even or odd: if N is even, the new N is N/2. (Use integer division.) if N is odd, the new N is 3*N + 1. Repeat with each new N until you reach the value 1. For example, say the initial value is 12. Then the successive values are:
12 (even, next value is 12/2)
6 (even, next value is 6/2)
3 (odd, next value is 3*3+1)
10 (even, next value is 10/2)
5 (odd, next value is 3*5+1)
16 (even, next value is 16/2)
8 (even, next value is 8/2)
4 (even, next value is 4/2)
2 (even, next value is 2/2)
1 (stop calculation)
In: Computer Science
Suppose the thickness of a certain part is important to a major customer. You want to know how “good” the micrometer you use is, i.e., is the measurement system acceptable? You decide to run a Gage R&R by having 3 operators measure 5 parts 2 times each. You perform the Gage R&R using operators A, B and C. The data from the study are given in Table 1 below. Perform the Gage R&R study and interpret the results.
Table 1: Gage R&R Data
Operator Part Trial 1 Trial 2
A 1 170 158
A 2 212 208
A 3 190 178
A 4 192 193
A 5 159 145
B 1 158 153
B 2 209 194
B 3 187 175
B 4 187 175
B 5 147 138
C 1 155 151
C 2 208 200
C 3 182 178
C 4 185 179
C 5 150 149
In: Mechanical Engineering
|
Activity |
Normal Time (days) |
Normal Cost ($) |
Crash Time (days) |
Crash Cost ($) |
Immediate Predecessor(s) |
|
A |
6 |
1,000 |
5 |
1,200 |
— |
|
B |
4 |
800 |
2 |
2,000 |
— |
|
C |
3 |
600 |
2 |
900 |
A, B |
|
D |
2 |
1,500 |
1 |
2,000 |
B |
|
E |
6 |
900 |
4 |
1,200 |
C, D |
|
F |
2 |
1,300 |
1 |
1,400 |
E |
|
G |
4 |
900 |
4 |
900 |
E |
|
H |
4 |
500 |
2 |
900 |
G |
Please complete in excel and not in a
notebook.
In: Operations Management
In the trp operon, when trp levels are high, the ____________ stem-loop forms, and transcription of the structural genes ________________ .
|
1-3, continues |
||
|
3-4, continues |
||
|
2-3, continues |
||
|
3-4, ends |
||
|
2-3, ends |
In: Biology
1. use the shell method to write and evaluate the definite internal that represents the volume of the solid generated by revolving the plan region about the x-axis. x+y^2=4
2. use the shell method find the volume of the solid generated by revolving the region bounded by the graphs of the equations about the given line. y=(x)^1/2. y=0 x=4. about the line x=6
In: Math
Show all working.
Use the following data to:
a) draw a scatter plot
b) find the coefficient of correlation and test the significance at
the 0.05 level
c) find the regression line
d) predict y' for x = 5
Number of alcoholic drinks -
x Score
on a Dexterity Test - y
2
15
1
18
3
11
4
7
2
10
1
16
5
4
6
2
In: Math
C++ Programa that:
// 1) Ask the user to enter two numbers greater than zero. Store the
// values into two variables named 'n' and 'm'.
// Additionally, implement a while-loop to keep asking the user to enter
// the numbers again if any of the two numbers are equal or smaller than zero.
// 2) If the two numbers (n, m) are equal, display the message "The
// numbers are the same". If the two numbers are different, display
// the message "The numbers are not the same".
// 3) Calculate and display the number n elevated into the power of m: n^m
// Store the result into a variable named 'X'.
// HINT: Use the pow() function.
// EXAMPLE: If n = 3 and m = 2 then X = 3^2 = 3 * 3 = 9
// EXAMPLE: If n = 2 and m = 3 then X = 2^3 = 2 * 2 * 2 = 8
// EXAMPLE: If n = 5 and m = 1 then X = 5^1 = 5
// EXAMPLE: If n = 1 and m = 3 then X = 1^3 = 1 * 1 * 1 = 1
// 4) The result from (c) is already stored into the variable 'X'.
// Calculate and display the factorial for the value in 'X': X!
// Store the result into a variable named 'factorial'.
// HINT: Use a for-loop similar to the for-loop used to calculate the
// mean of a sequence of numbers in the file 5.3-For.cpp. Instead
// of adding numbers, now we want to multiply numbers.
// EXAMPLE: If X = 9, then factorial = 9! = 1 * 2 * 3 * 4 * 5 * 6 * 7 * 8 * 9 = 362880
// EXAMPLE: If X = 8, then factorial = 8! = 1 * 2 * 3 * 4 * 5 * 6 * 7 * 8 = 40320
// EXAMPLE: If X = 5, then factorial = 5! = 1 * 2 * 3 * 4 * 5 = 120
// EXAMPLE: If X = 1, then factorial = 1! = 1
// NOTE: The calculation of a factorial can result in a really a big number,
// and the compiler may give an incorrect result. Use the numbers
// provided in the examples to test your code.
// 5) Add code to ask the user if he wants to quit the program. If
// the user enter 'yes' the program exits, if the user enter 'no' or any
// other string, the program will execute again.
In: Computer Science
The following table lists the components needed to assemble an end item, lead times, and quantities on hand.
| Item | End | B | C | D | E | F | G | H |
| LT (wk) | 1 | 3 | 4 | 4 | 2 | 1 | 2 | 1 |
| Amount on hand | 0 | 10 | 9 | 25 | 11 | 29 | 6 | 0 |
End Item
B(2) C D(3)
E(2) / F(3) G(2) / E(2) H(4) / E(2)
a. If 20 units of the end item are to be
assembled, how many additional units of E are needed?
(Hint: You don't need to develop an MRP plan to determine
this.)
Additional units ____
b. An order for the end item is scheduled to be
shipped at the start of week 15. What is the latest week that the
order can be started and still be ready to ship on time?
(Hint: You don't need to develop an MRP plan for this part
either.)
The latest week ____
In: Operations Management
write a hypothesis test problem. Post your problem with a solution.
Option 1.
Think about two population means that you may be interested in and propose a hypothesis test problem for this parameter. For example, you may believe that the average family size in Illinois is greater than the average family size in Wisconsin. Your data could be that you spoke with 20 people (10 in Illinois and 10 in Wisconsin) and found the following family sizes: 5, 6, 5, 2, 3, 4, 3, 2, 4, 2 in Illinois and 4, 4, 5, 6, 2, 2, 2, 3, 4, 3 in Wisconsin. Assume a random sample.
In: Statistics and Probability