Question 1

Which of the following best describes the relationship between structure and function in biology?

Accepted Answer

At each level of the biological hierarchy, there is a correlation between structure and function.

Question 2

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

Accepted Answer

Gravity

Question 3

A scientist observes that a certain plant species grows taller in sunlight than in shade. She hypothesizes that sunlight increases the rate of photosynthesis, leading to more growth. Which of the following is the best way to test her hypothesis?

Accepted Answer

Grow identical plants in both sunlight and shade, measuring their growth and photosynthesis rates.

Question 4

Which of the following statements about DNA is correct?

Accepted Answer

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

Question 5

Which of the following best explains why energy flows through an ecosystem, but chemicals cycle within it?

Accepted Answer

Energy enters as sunlight and exits as heat, while chemicals are reused by organisms.

Question 6

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

Accepted Answer

The secretion of insulin lowers blood glucose, which then reduces insulin secretion.

Question 7

Which domain includes organisms that have membrane-enclosed organelles?

Accepted Answer

Eukarya

Question 8

A new organism is discovered in a pond. It is multicellular, has cilia, and a nucleus. Which domain does it most likely belong to?

Accepted Answer

Eukarya

Question 9

Which of the following is the correct sequence of biological organization from smallest to largest?

Accepted Answer

Organelle, cell, tissue, organ, organism

Question 10

Which of the following best describes the process of natural selection?

Accepted Answer

Individuals with traits best suited to their environment are more likely to survive and reproduce.

Question 11

A researcher is studying the effect of soil color and moonlight on predation rates of mice. Which is the dependent variable in this experiment?

Accepted Answer

The number of mice caught

Question 12

Which of the following is a property shared by all living things but NOT by a rock?

Accepted Answer

All of the above

Question 13

Which of the following statements about scientific theories is correct?

Accepted Answer

A theory is broader in scope than a hypothesis and supported by a large body of evidence.

Question 14

Which of the following best illustrates the concept of descent with modification?

Accepted Answer

Finch species on the Galápagos Islands have different beak shapes adapted to their diets.

Question 15

Which of the following is an example of inductive reasoning?

Accepted Answer

Observing that all swans you have seen are white and concluding that all swans are white.

Question 16

Which of the following is a correct statement about the flow of energy in an ecosystem?

Accepted Answer

Energy enters as sunlight and is eventually lost as heat.

Question 17

Which of the following is a function of bioinformatics in genomics?

Accepted Answer

Using computational tools to process large volumes of genetic data.

Question 18

Which of the following is an example of positive feedback?

Accepted Answer

The release of oxytocin during childbirth increases contractions, leading to more oxytocin release.

Question 19

Which of the following best describes the difference between prokaryotic and eukaryotic cells?

Accepted Answer

Prokaryotic cells lack a nucleus and membrane-enclosed organelles, while eukaryotic cells have both.

Question 20

Which of the following is a real-world example of how human activity affects ecosystems?

Accepted Answer

Burning fossil fuels increases atmospheric $$CO_2$$, contributing to climate change.

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

Study Guide - Practice Questions

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