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In a velocity-time graph, acceleration, or positive velocity, is represented by the steepness of the line. Deceleration, or negative velocity, is represented with a slope downward.
Assuming that the following graph demonstrates a sprinter’s velocity over time, how would you best describe this graph?CorrectIncorrect
A pharmaceutical company is testing a new treatment for high blood pressure. In studying the efficacy of the new medication, they reported the following data to support the claim that the medication is effective.
Group Dosage Results Group A 20 mg daily No change Group B 50 mg daily -2.64 (avg.) Group C 100 mg daily -5.21 (avg.)
What element is missing from their study design that would enhance the legitimacy of their results?CorrectIncorrect
The following chart includes details about different phases of matter.
Which of the following answers is not true according to this chart?CorrectIncorrect
In the scientific method and study designs, what role do variables play?CorrectIncorrect
In the following marine ecosystem food web, which of the following would be considered a producer?CorrectIncorrect
The genotypes in organisms’ offspring can be optimized to have useful traits – a process through which those organisms with the most beneficial traits have the most offspring.
What is the name for this process as identified by Charles Darwin?CorrectIncorrect
According to the following graph measuring plastic particle concentrations at specific depths of the ocean, which of the following statements is true?CorrectIncorrect
According to the following body mass index (BMI) chart, which of the following statements is accurate?CorrectIncorrect
Gravity is a force which tries to pull two objects toward each other. Anything which has mass also has a gravitational pull. The more massive an object is, the stronger its gravitational pull is. Earth’s gravity is what keeps you on the ground and what causes objects to fall. Gravity is what holds the planets in orbit around the Sun and what keeps the Moon in orbit around Earth. The closer you are to an object, the stronger its gravitational pull is. Gravity is what gives you weight. It is the force that pulls on all of the mass in your body.
As objects move away from the Earth, what gravitational change occurs and how does it impact the weight of an object?CorrectIncorrect
The following chart displays information about the planets in the solar system, based upon this, which of the following is true?CorrectIncorrect