Question 1

Which of the following is a requirement for a scientific hypothesis to be considered valid?

Accepted Answer

It must be testable and falsifiable.

Question 2

Which of the following best differentiates inductive reasoning from deductive reasoning in scientific investigations?

Accepted Answer

Inductive reasoning involves drawing general conclusions from specific observations, while deductive reasoning applies general principles to predict specific outcomes.

Question 3

A scientific argument typically consists of which three parts?

Accepted Answer

Claim, evidence, reasoning

Question 4

Given the claim: 'Plants grow faster under blue light than red light.' Which of the following is the correct way to structure a scientific argument using the three parts?

Accepted Answer

Claim: Plants grow faster under blue light than red light. Evidence: In an experiment, plants exposed to blue light grew 2 cm taller on average than those under red light. Reasoning: Blue light is absorbed more efficiently by chlorophyll, promoting photosynthesis and growth.

Question 5

Which of the following is NOT considered an emergent property in biology?

Accepted Answer

The ability of a single water molecule to form hydrogen bonds

Question 6

Which scenario best illustrates a positive feedback loop in biology?

Accepted Answer

During childbirth, the release of oxytocin increases uterine contractions, which in turn stimulates more oxytocin release.

Question 7

Which of the following is an example of a negative feedback loop?

Accepted Answer

The regulation of blood glucose levels by insulin

Question 8

What type of feedback mechanism is most common in biological systems?

Accepted Answer

Negative feedback

Question 9

Which of the following best describes the core theme of biology?

Accepted Answer

Evolution, because it explains both the unity and diversity of life.

Question 10

Why is evolution considered the core theme in biology?

Accepted Answer

It provides a framework for understanding the relationships and adaptations among all living organisms.

Question 11

Which of the following best differentiates acclimation from adaptation?

Accepted Answer

Acclimation is a short-term physiological response to environmental change in an individual, while adaptation is a long-term genetic change in a population.

Question 12

Which of the following is an example of an emergent property at the cellular level?

Accepted Answer

The ability of a group of cells to form tissues with specialized functions

Question 13

A scientist proposes the hypothesis: 'If fertilizer is added to soil, then plant growth will increase.' Which of the following makes this hypothesis testable and falsifiable?

Accepted Answer

Designing an experiment where some plants receive fertilizer and others do not, then measuring their growth.

Question 14

Which of the following best represents the use of deductive reasoning in biology?

Accepted Answer

Predicting that all mammals have hair because mammals are defined as animals with hair.

Question 15

Which of the following is a correct application of a scientific argument in a medical case?

Accepted Answer

Claim: Antibiotics reduce bacterial infections. Evidence: Patients treated with antibiotics recover faster than those without. Reasoning: Antibiotics kill bacteria, leading to faster recovery.

Question 16

Which of the following is an example of a negative feedback loop in human physiology?

Accepted Answer

The regulation of body temperature through sweating when overheated

Question 17

Which of the following equations best represents the process of photosynthesis?

Accepted Answer

$$6CO_2 + 6H_2O \rightarrow C_6H_{12}O_6$ + 6O_2$$

Question 18

Which of the following equations describes cellular respiration?

Accepted Answer

$$C_6H_{12}O_6$ + 6O_2 ightarrow 6CO_2 + 6H_2O + 	ext{energy}$$

Foundations of Scientific Reasoning and Core Themes in General Biology

Guida di studio - Domande di pratica

Study guide - Flashcard