Question 1

Which of the following best describes the concept of biological evolution?

Accepted Answer

The change in the genetic composition of a population over successive generations.

Question 2

Which of the following is NOT a level of biological organization?

Accepted Answer

Gravity

Question 3

A scientist observes that a plant grows faster when exposed to blue light compared to red light. Which step of the scientific method does this observation represent?

Accepted Answer

Making an observation

Question 4

Which equation correctly represents the binomial nomenclature for the human species?

Accepted Answer

$$Homo\ sapiens$$

Question 5

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

Accepted Answer

Childbirth contractions increasing in intensity due to oxytocin release

Question 6

Which domain of life includes organisms that lack a nucleus and are often found in extreme environments?

Accepted Answer

Archaea

Question 7

What is the main difference between prokaryotic and eukaryotic cells?

Accepted Answer

Eukaryotic cells have a nucleus; prokaryotic cells do not.

Question 8

Which of the following best explains why experimental results should be statistically analyzed?

Accepted Answer

To determine if observed differences are likely due to chance or represent true effects.

Question 9

Which of the following is a correct example of a scientific hypothesis?

Accepted Answer

If plants are given more sunlight, then they will grow taller.

Question 10

Which of the following is NOT a characteristic shared by all living organisms?

Accepted Answer

Presence of a nucleus

Question 11

Which of the following best describes the role of Charles Darwin's observations in the development of the theory of natural selection?

Accepted Answer

He noted variation among individuals and the struggle for survival.

Question 12

Which of the following is an example of adaptation?

Accepted Answer

A bird developing thicker feathers in a cold climate

Question 13

Which of the following is a correct equation for the unity of life at the molecular level?

Accepted Answer

$$DNA \rightarrow RNA \rightarrow Protein$$

Question 14

Which of the following is NOT one of the three domains of life?

Accepted Answer

Fungi

Question 15

Which of the following best describes the difference between a control group and an experimental group in a scientific experiment?

Accepted Answer

The experimental group receives the variable being tested; the control group does not.

Question 16

Which of the following is a correct example of a taxonomic group?

Accepted Answer

Genus

Question 17

Which of the following is a plausible reason for differences among organisms?

Accepted Answer

Differences in their DNA sequences

Question 18

Which of the following is a correct definition of an observation in the scientific method?

Accepted Answer

A statement based on direct measurement or detection

Question 19

Which of the following is a correct example of a negative feedback mechanism?

Accepted Answer

Regulation of blood glucose levels by insulin

Question 20

Which of the following best explains why the scientific method is important in biology?

Accepted Answer

It provides a systematic way to test hypotheses and validate results.

General Biology: Foundational Concepts and Scientific Methods 1

Guida di studio - Domande di pratica

Study guide - Flashcard