Question 1

Which of the following best describes the central dogma of molecular biology?

Accepted Answer

Genetic information flows from DNA to RNA to protein.

Question 2

Which property of life is best illustrated by a plant growing toward a light source?

Accepted Answer

Response to stimuli

Question 3

A scientist wants to test whether desert ants use the number of steps to find their way back to their nest. What is the null hypothesis for this experiment?

Accepted Answer

Desert ants do not use the number of steps to find their way back to their nest.

Question 4

Which of the following is the correct format for the scientific name of humans?

Accepted Answer

$	extit{Homo sapiens}$

Question 5

Which level of biological organization is immediately above 'cell'?

Accepted Answer

Tissue

Question 6

Which of the following statements best distinguishes a hypothesis from a prediction?

Accepted Answer

A hypothesis is a testable explanation, while a prediction is a specific expected outcome if the hypothesis is true.

Question 7

Which of the following is NOT a fundamental property of living things?

Accepted Answer

Ability to photosynthesize

Question 8

In the tree of life, which domain includes organisms with eukaryotic cells?

Accepted Answer

Eukarya

Question 9

A student claims that 'giraffes have long necks because they need to reach high leaves.' What type of scientific explanation is this?

Accepted Answer

A hypothesis based on adaptation

Question 10

Which of the following best describes the process of science?

Accepted Answer

Formulating hypotheses, testing them through experiments, and revising based on evidence.

Question 11

Which organizational framework is most useful for comparing the structure and function of different organisms?

Accepted Answer

Levels of biological organization

Question 12

Which of the following is a key difference between eukaryotic and prokaryotic cells?

Accepted Answer

Eukaryotic cells have membrane-bound organelles; prokaryotic cells do not.

Question 13

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

Accepted Answer

If male giraffes with longer necks compete more successfully, then they will have more offspring.

Question 14

Which of the following is a core concept in biology that refers to changes in populations over time?

Accepted Answer

Evolution

Question 15

A student is struggling with a biology assignment and needs support. Which of the following is NOT an appropriate way to get help?

Accepted Answer

Copying another student's work and submitting it as your own.

Question 16

Which of the following best describes a scientific theory?

Accepted Answer

A well-supported explanation of natural phenomena based on evidence.

Question 17

Which of the following is an example of applying the process of science to a real-world scenario?

Accepted Answer

Testing whether a new drug reduces symptoms in patients compared to a placebo.

Question 18

Which of the following is a competency that helps biologists communicate and work effectively in teams?

Accepted Answer

Teamwork and collaboration

Question 19

Which of the following is a valid experimental approach to test the hypothesis that desert ants use step counting to navigate?

Accepted Answer

Alter the length of the ants' legs and observe if they misjudge the distance to the nest.

Question 20

Which of the following best describes adaptation in a biological context?

Accepted Answer

A trait that increases an organism's fitness in a particular environment.

Introduction to Biology: Study Guide and Core Concepts

Study Guide - Practice Questions

Study Guide - Flashcards