Relationships among events, objects, and processes

Question 1

Which of the following statements is true about understanding magnitude when describing relationships?

The magnitude of the number represents the strength of the correlation
A nanometer is larger than a centimeter, and a centimeter is smaller than a kilometer
The scale of a graph does not describe a relation between used units
An order of magnitude is a factor of 5

Answer 1

The magnitude of the number represents the strength of the correlation

Question 2

A study draws the conclusion that obesity is a significant cause of Type 2 diabetes. Which of the following experimental parameters would not build confidence that such a cause and effect relationship is likely true?

Taking in mind all obtained results
Use of a small sample size
A large number of data points
The inclusion of proper controls

Answer 2

Use of a small sample size

Question 3

During a study, scientists noted that people with more self-esteem tend to not be depressed and vice versa. Which of the following types of relationships did they observe?

A correlation
Random
A cause-and-effect relationship
Spontaneous

Answer 3

A correlation

Question 4

Which of the following is the most plausible sequence of events?

Walk in the woods; stung by bee; given morphine; early death
Extensive car use; air pollution; less people with asthma; less healthcare expenses
Born into musical family; grows up around music; starts learning guitar; plays concert
Poaching more rhinos; more export rhino horn goods; more goods with a lower economic value; economy boost

Answer 4

Born into musical family; grows up around music; starts learning guitar; plays concert

Question 5

Dandelions → Snail → Frog → Bird → Fox

Using the food chain above, which of the following terms best describes the trophic level of frogs?

Secondary consumer
Producer
Primary consumer
Tertiary consumer

Answer 5

Secondary consumer

Question 6

Steps involved in natural selection include:

1. Differing survival rates when faced with environmental challenges.
2. Preservation of genetic traits of best-adapted offspring.
3. Overproduction of offspring that have different variations in genetic traits.

Which of the following is the sequence in which these steps take place?

2, 1, 3
1, 3, 2
1, 2, 3
3, 1, 2

Answer 6

3, 1, 2

Question 7

Which is the most appropriate unit to measure the weight of groceries in a store?

Nanograms
Tons
Micrograms
Kilograms

Answer 7

Kilograms

Question 8

A nurse has to give a patient a tablet drug. Which of the following are the best units to use when writing in the chart how much of the drug was delivered?

mg of drug/kg of patient’s body weight
L of drug/kg of patient’s body weight
cm of drug/kg of patient’s body weight
mL of drug/mg of patient’s body weight

Answer 8

mg of drug/kg of patient’s body weight

Question 9

Which of the following are likely the causes of diabetes type 2?

Weakened heart, insulin resistance
Lack of exercise, unhealthy food choices, obesity
Insulin resistance, difficulty breathing
Too much exercise, fruit-based diet

Answer 9

Lack of exercise, unhealthy food choices, obesity