Question 1

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

Accepted Answer

A property that arises only when individual components interact at higher levels of organization.

Question 2

A scientist is studying the effect of a new fertilizer on plant growth. She sets up two groups: one receives the fertilizer, and the other does not. Which is the independent variable in this experiment?

Accepted Answer

The application of the new fertilizer.

Question 3

Which of the following statements about prokaryotic and eukaryotic cells is correct?

Accepted Answer

Prokaryotic cells are generally smaller and simpler than eukaryotic cells.

Question 4

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

Accepted Answer

The secretion of insulin in response to high blood glucose, which lowers blood glucose levels.

Question 5

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

Accepted Answer

The streamlined shape of a fish enabling efficient movement through water.

Question 6

Which of the following is NOT one of the five unifying themes of biology?

Accepted Answer

Gravity

Question 7

A population of insects develops resistance to a pesticide over several generations. Which biological concept does this scenario best illustrate?

Accepted Answer

Evolution by natural selection

Question 8

Which of the following statements about DNA is correct?

Accepted Answer

DNA is transcribed into RNA, which is then translated into protein.

Question 9

Which domain includes organisms that are all eukaryotic?

Accepted Answer

Eukarya

Question 10

A researcher observes that a certain plant species grows taller in the presence of a specific fungus. She hypothesizes that the fungus provides nutrients to the plant. Which step of the scientific process is she performing?

Accepted Answer

Forming a hypothesis

Question 11

Which of the following best describes the difference between a hypothesis and a scientific theory?

Accepted Answer

A theory is supported by a larger body of evidence than a hypothesis.

Question 12

Which of the following is an example of qualitative data?

Accepted Answer

The leaves of the plant are dark green and glossy.

Question 13

Which of the following best explains why energy flows through an ecosystem rather than cycling?

Accepted Answer

Some energy is lost as heat during each energy transfer.

Question 14

Which of the following is a correct example of the correlation between structure and function?

Accepted Answer

The flat shape of red blood cells increases their surface area for gas exchange.

Question 15

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

Accepted Answer

It is a flexible process that may involve backtracking and revising hypotheses.

Question 16

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

Accepted Answer

The amplification of labor contractions by oxytocin during childbirth.

Question 17

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

Accepted Answer

They convert light energy into chemical energy through photosynthesis.

Question 18

Which of the following is a real-world example of how human activity has affected global ecosystems?

Accepted Answer

The increase in atmospheric carbon dioxide due to burning fossil fuels.

Question 19

Which of the following best explains why the scientific community values diverse viewpoints?

Accepted Answer

Diversity leads to more robust, valuable, and productive scientific interchange.

Question 20

Which of the following best describes the relationship between science and technology?

Accepted Answer

Science aims to understand natural phenomena, while technology applies scientific knowledge for specific purposes.

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

Guida di studio - Domande di pratica

Study guide - Flashcard