Question 1

Which of the following best describes a scientific hypothesis?

Accepted Answer

A statement that is testable and falsifiable.

Question 2

Which of the following is NOT a necessary component of a scientific argument?

Accepted Answer

Personal opinion

Question 3

A scientist observes that plants grow faster in sunlight and proposes that light increases photosynthesis. She collects data and explains how the data supports her idea. Which part of the scientific argument is the explanation?

Accepted Answer

Reasoning

Question 4

Which of the following is an example of a testable and falsifiable hypothesis?

Accepted Answer

If fertilizer is added to soil, then plant growth will increase.

Question 5

Inductive reasoning in biology involves:

Accepted Answer

Drawing general conclusions from specific observations.

Question 6

Which of the following is an example of a positive feedback loop in biology?

Accepted Answer

During childbirth, the release of oxytocin increases contractions, which leads to more oxytocin release.

Question 7

Which of the following best illustrates a negative feedback loop?

Accepted Answer

When blood sugar rises, insulin is released to lower it.

Question 8

Emergent properties in biology refer to:

Accepted Answer

New characteristics that arise at higher levels of organization, not present in individual components.

Question 9

Which of the following is a real-world example of an emergent property?

Accepted Answer

Consciousness arising from the network of neurons in the brain.

Question 10

Which type of feedback is most common in biological systems?

Accepted Answer

Negative feedback

Question 11

Which of the following best differentiates acclimation from adaptation?

Accepted Answer

Acclimation is a short-term physiological change in an individual; adaptation is a long-term genetic change in a population.

Question 12

Which of the following is considered the core theme in biology?

Accepted Answer

Evolution

Question 13

Why is evolution considered the core theme in biology?

Accepted Answer

It explains the unity and diversity of life through genetic change over time.

Question 14

A student claims that 'all birds can fly.' She observes penguins and ostriches, which cannot fly. What reasoning process is she using to revise her claim?

Accepted Answer

Inductive reasoning

Question 15

Which of the following best represents the three parts of a scientific argument?

Accepted Answer

Claim, evidence, reasoning

Question 16

Given the following scenario: 'If temperature increases, then enzyme activity will increase. Data shows enzyme activity peaks at 37°C and decreases above that.' Which part is the evidence?

Accepted Answer

Data showing enzyme activity peaks at 37°C and decreases above that.

Question 17

Which equation best represents the process of scientific reasoning?

Accepted Answer

$$	ext{Claim} + 	ext{Evidence} ightarrow 	ext{Reasoning}$$

Question 18

Which of the following scenarios best illustrates the application of a negative feedback loop?

Accepted Answer

A thermostat turns off the heater when the room reaches a set temperature.

Question 19

Which of the following is an example of adaptation rather than acclimation?

Accepted Answer

Polar bears have thick fur due to genetic changes over generations.

Question 20

Which of the following best summarizes a major theme in biology?

Accepted Answer

Living systems are organized into hierarchical levels, each with emergent properties.

Foundations of Scientific Reasoning and Core Themes in General Biology

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