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Question 1 of 11
Genetically modified crops and livestock offer the possibility of greater yield and food quality, reductions in pesticide use, and higher profits for agricultural businesses. They are viewed by some as a way to help reduce world hunger by increasing food production and reducing losses to pests and varying environmental conditions. Each year, industrial agriculture relies more heavily on genetically modified crops. There are some concerns about our increasing use of genetically modified crops and livestock, including their safety for human consumption and their effects on the environment.
Based on the passage above, if genetically modified crops were to be banned, what could be the largest negative impact to humans?
Question 2 of 11
Battery companies make impressive claims about how long their batteries will last. A student decided to test the running time of different batteries to determine which battery lasts the longest. The student tested 6 different batteries, 4 brand name and 2 generic, using flashlights. The results show that the battery referred to as Name Brand A lasted the longest, with 101 hours of runtime:
Flashlight Battery Runtime in hours
Gearlight Super Light
Name Brand A
101
SureFire
Name Brand B
99
Maglight
Name Brand C
80
Bright Star
Name Brand D
75
SureFire
Generic A
30
Bright Star
Generic B
29
It could be argued that this experiment was not set up using proper experimental protocol. What would need to change in the experiment for the results to be valid?
Question 3 of 11
The square above is based on the eye color of two parents. One of the parents has brown eyes and carries the recessive gene for green eyes (a). What is the probability that a biological child of these parents will have brown eyes?
Question 4 of 11
Below is the chemical equation for photosynthesis:
Which of the following statements about photosynthesis is correct?
Question 5 of 11
Wavelengths are measured in nanometers (nm). Each color on the visible spectrum has a different wavelength. The human eye is only able to distinguish wavelengths between 400-750 nm. The approximate wavelengths of the visible spectrum are shown below:
If you were reading a scientific report, and it referred to a wavelength of 455 nm, which color would it be referring to?
Question 6 of 11
What is the median of number of hurricanes per decade?
Question 7 of 11
What is the mode of this data set?
Question 8 of 11
What is the range of this data set?
Question 9 of 11
In an ecosystem, producers convert the sun’s energy into a usable source for other organisms. Primary consumers eat the producers, secondary consumers eat primary consumers, and tertiary consumers eat secondary consumers. Some organisms eat more than one type of organism in the food web. Look at the food web below. Notice that the lion is both a scavenger and a secondary consumer. Thus, they may fill more than one role in the ecosystem.
Which of the following organisms fill more than one role in this ecosystem?
Question 10 of 11
In an ecosystem, producers convert the sun’s energy into a usable source for other organisms. Primary consumers eat the producers, secondary consumers eat primary consumers, and tertiary consumers eat secondary consumers. Some organisms eat more than one type of organism in the food web. Look at the food web below. Notice that the lion is both a scavenger and a secondary consumer. Thus, they may fill more than one role in the ecosystem.
If additional cheetahs were introduced into this ecosystem, shortly thereafter we would expect a decrease in the:
Question 11 of 11
As part of a chemistry experiment, 1025 milliliters of water is mixed into a beaker that contains 175 milliliters of motor oil.
(1 liter = 1000 milliliters)
After adding the water, how many liters of liquid are in the beaker?
