Question 1

Which of the following best illustrates the theme of 'structure fits function' in biology?

Accepted Answer

The broad, flat shape of a leaf maximizing sunlight capture for photosynthesis.

Question 2

A population of beach mice has fur coloration that closely matches the white sand dunes of its habitat. What evolutionary process most likely led to this adaptation?

Accepted Answer

Natural selection favoring mice with lighter fur, increasing their survival from predators.

Question 3

Which level of biological organization is defined as 'all the living things in a particular area, along with all the nonliving components of the environment with which life interacts'?

Accepted Answer

Ecosystem

Question 4

Which statement about prokaryotic and eukaryotic cells is correct?

Accepted Answer

Eukaryotic cells contain membrane-enclosed organelles, while prokaryotic cells do not.

Question 5

Which process describes the flow of energy in an ecosystem?

Accepted Answer

Energy enters as sunlight, is converted to chemical energy by producers, and exits as heat.

Question 6

A scientist observes that beach mice with non-camouflaged fur are preyed upon more frequently than camouflaged mice. What is the dependent variable in this experiment?

Accepted Answer

The amount of predation experienced by the mice.

Question 7

Which of the following is an example of negative feedback regulation in biological systems?

Accepted Answer

Insulin secretion decreases as blood glucose levels return to normal.

Question 8

Which statement best describes the relationship between DNA, genes, and proteins?

Accepted Answer

Genes are segments of DNA that encode instructions for making proteins.

Question 9

Which domain includes multicellular organisms that carry out photosynthesis?

Accepted Answer

Eukarya

Question 10

A mouse is eating a plant, and a hawk is preying on the mouse. Which theme of biology does this scenario best illustrate?

Accepted Answer

Interactions within a system

Question 11

Which of the following is a correct statement about scientific theories?

Accepted Answer

A scientific theory is broad in scope, generates new hypotheses, and is supported by a large body of evidence.

Question 12

Which of the following best describes the concept of emergent properties?

Accepted Answer

New properties arise at each level of biological organization due to the arrangement and interactions of parts.

Question 13

Which reasoning process is used when scientists derive generalizations from a large number of specific observations?

Accepted Answer

Inductive reasoning

Question 14

A mouse population living on dark soil is exposed to predation by visual hunters. Over time, what change would you expect in the population?

Accepted Answer

An increase in the frequency of dark-furred mice due to natural selection.

Question 15

Which of the following is NOT a unifying theme of biology?

Accepted Answer

Astrology

Question 16

Which of the following best describes the role of decomposers in an ecosystem?

Accepted Answer

They break down dead organisms and return chemicals to the soil.

Question 17

Which of the following is a real-world example of feedback regulation in humans?

Accepted Answer

The regulation of blood glucose levels by insulin.

Question 18

Which of the following statements about the scientific method is correct?

Accepted Answer

It is a flexible process involving observation, hypothesis formation, and testing.

Question 19

Which of the following is a correct application of the concept of systems biology?

Accepted Answer

Modeling the dynamic behavior of an integrated network of components in a biological system.

Question 20

Which of the following is a plausible hypothesis that could be tested in a field experiment involving mouse populations?

Accepted Answer

Mice with fur coloration matching their habitat experience lower predation rates than non-matching mice.

Chapter 1: Evolution, the Themes of Biology, and Scientific Inquiry – Study Notes

Study Guide - Practice Questions

Study Guide - Flashcards