Question 1

Which of the following best describes an emergent property in biological systems?

Accepted Answer

A property that arises from the arrangement and interaction of parts within a system, not present in the individual components.

Question 2

Which of the following is NOT one of the four major unifying themes of biology?

Accepted Answer

Photosynthesis

Question 3

A scientist is studying the effect of temperature on the rate of potassium ion diffusion across a membrane. Which type of graph would best display the change in diffusion rate as a function of temperature?

Accepted Answer

A line graph

Question 4

Which of the following is an example of a dependent variable in a scientific experiment?

Accepted Answer

The number of bird species present in response to pollution levels

Question 5

Natural selection requires all of the following EXCEPT:

Accepted Answer

Equal reproductive success among all individuals

Question 6

In an experiment, a control variable is best described as:

Accepted Answer

A variable that is kept constant to prevent it from influencing the outcome of the experiment

Question 7

Which level of biological organization is directly above 'organ system' and below 'organism'?

Accepted Answer

Organ system

Question 8

A researcher is testing the effect of different concentrations of sodium chloride (NaCl) on the diffusion rate of chloride ions through a membrane. Which type of graph would best visualize the relationship between NaCl concentration and diffusion rate?

Accepted Answer

Scatter plot

Question 9

Which of the following best describes the process of science?

Accepted Answer

A systematic approach to understanding the natural world through observation, hypothesis formation, experimentation, and data analysis.

Question 10

Which of the following is an example of an independent variable in an experiment investigating the effect of caffeine on reaction time?

Accepted Answer

Caffeine dosage

Question 11

Which of the following best illustrates the theme of 'Information' in biology?

Accepted Answer

The transmission of genetic material (DNA) from parent to offspring

Question 12

A population of mice living on a beach evolves lighter fur color over generations due to predation by birds. Which condition of natural selection does this scenario best illustrate?

Accepted Answer

Selective pressure or differential reproductive success

Question 13

Which of the following is a correct statement about hypotheses in scientific inquiry?

Accepted Answer

A hypothesis is a testable and falsifiable explanation for an observation.

Question 14

Which of the following best describes the relationship between energy and matter in biological systems?

Accepted Answer

Energy flows through systems while matter cycles within them.

Question 15

In a dialysis experiment, the concentration of a substance in the blood and the dialysate are measured at several time points. Which type of graph would best compare the concentration of the substance between the two solutions across time?

Accepted Answer

Line graph with two lines (one for blood and one for dialysate)

Question 16

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

Accepted Answer

Nutrient cycling resulting from interactions among organisms and their environment

Question 17

Which of the following best describes the role of a control group in an experiment?

Accepted Answer

It provides a baseline for comparison to determine the effect of the experimental variable.

Question 18

Which of the following scenarios best demonstrates the theme of 'Interaction' in biology?

Accepted Answer

A bee pollinating a flower, benefiting both the bee and the plant

Question 19

Which of the following is a correct example of an independent variable in a scientific experiment?

Accepted Answer

The concentration of antibiotic used in a bacterial growth experiment

Question 20

Which of the following best explains why sickle cell anemia persists in certain populations despite its negative health effects?

Accepted Answer

Heterozygous individuals have increased resistance to malaria, providing a selective advantage in regions where malaria is common.

Core Concepts in General Biology: Unifying Themes, Natural Selection, and Scientific Inquiry

Guida di studio - Domande di pratica

Study guide - Flashcard