Question 1

Which of the following best describes the process of science?

Accepted Answer

A method of gaining knowledge through observation, asking questions, and experimentation.

Question 2

Which of the following statements is considered scientific?

Accepted Answer

Water freezes at $$0^\circ C.$$

Question 3

A scientific theory is best defined as:

Accepted Answer

An explanation for a very general class of phenomena or observations that is supported by a large body of evidence.

Question 4

Which of the following is a characteristic of a good scientific hypothesis?

Accepted Answer

It is testable and falsifiable.

Question 5

In the context of the scientific method, what is the main difference between a hypothesis and a prediction?

Accepted Answer

A hypothesis is a general explanation, while a prediction is a specific expected outcome if the hypothesis is correct.

Question 6

Which of the following best illustrates the use of a null hypothesis ($$H_0) in an $$experiment?

Accepted Answer

Assuming there is no effect or difference, and any observed effect is due to random chance.

Question 7

Which of the following is an example of an observational study rather than an experiment?

Accepted Answer

Measuring the growth of a rare orchid in its natural habitat over several years without manipulating any variables.

Question 8

In the Batesian mimicry experiment, what is the main prediction when both the venomous and non-venomous snakes are present?

Accepted Answer

Predation on the artificial king snake should be lower than on the brown control snake.

Question 9

Which of the following is NOT a characteristic of life according to the cellular theory?

Accepted Answer

Is always multicellular.

Question 10

A scientist observes that a cat’s food bowl is empty every morning. She hypothesizes that the cat eats all the food at night. What would be an appropriate null hypothesis ($$H_0) $$for this scenario?

Accepted Answer

There is another reason the bowl is empty besides the cat eating the food.

Question 11

Which of the following best describes the difference between an experiment and an observational study?

Accepted Answer

Experiments involve deliberate manipulation of variables, while observational studies do not.

Question 12

Which of the following is a real-world example of a scientific theory being revised based on new evidence?

Accepted Answer

The shift from the geocentric model to the heliocentric model of the solar system.

Question 13

Which of the following is a falsifiable hypothesis?

Accepted Answer

If a plant is given sunlight, it will grow taller than a plant kept in the dark.

Question 14

Which of the following best explains why prions challenge the definition of life?

Accepted Answer

Prions are infectious proteins that lack cellular structure and do not carry out metabolism.

Question 15

A student claims that 'all scientific hypotheses must be proven true.' Which of the following best corrects this misconception?

Accepted Answer

Scientific hypotheses must be testable and falsifiable, and can be supported or refuted by evidence.

Question 16

Which of the following is an example of a prediction derived from a hypothesis?

Accepted Answer

If I pull this lever, I will get zapped.

The Nature of Science: Foundations and Methods in General Biology

Guida di studio - Domande di pratica

Study guide - Flashcard