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

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

Accepted Answer

Prokaryotic cells are generally smaller and lack membrane-bound organelles.

Question 3

Which of the following is an example of negative feedback regulation in the human body?

Accepted Answer

The secretion of insulin decreases blood glucose levels, which in turn reduces insulin secretion.

Question 4

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

Accepted Answer

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

Question 5

A scientist observes that a certain plant grows faster in blue light than in red light. She hypothesizes that blue light increases the rate of photosynthesis. Which of the following is the best experimental design to test this hypothesis?

Accepted Answer

Grow one group of plants in blue light and another in red light, keeping all other conditions the same, and measure their growth rates.

Question 6

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

Accepted Answer

Inductive reasoning

Question 7

Which sequence correctly orders the levels of biological organization from smallest to largest?

Accepted Answer

Molecules, organelles, cells, tissues, organs, organisms, populations, communities, ecosystems, biosphere

Question 8

Which of the following best describes the process of gene expression?

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

Which of the following is an example of adaptation by natural selection?

Accepted Answer

A population of insects develops resistance to a pesticide over several generations.

Question 11

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 12

Which of the following is an example of deductive reasoning?

Accepted Answer

All mammals have hair. A rabbit is a mammal. Therefore, a rabbit has hair.

Question 13

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

Accepted Answer

Science seeks to understand natural phenomena, while technology applies scientific knowledge for practical purposes.

Question 14

Which of the following is a correct statement about the cycling of chemicals in an ecosystem?

Accepted Answer

Chemicals are recycled within the ecosystem and reused by organisms.

Question 15

A researcher is studying the effect of fertilizer on plant growth. She applies fertilizer to one group of plants and leaves another group unfertilized. She measures the height of the plants after four weeks. In this experiment, what is the dependent variable?

Accepted Answer

The height of the plants after four weeks

Question 16

Which of the following is a real-world example of positive feedback?

Accepted Answer

The release of oxytocin during childbirth increases uterine contractions, which causes more oxytocin to be released.

Question 17

Which of the following best illustrates the concept of unity in the diversity of life?

Accepted Answer

All living organisms use DNA as their genetic material.

Question 18

Which of the following is an example of inductive reasoning in biology?

Accepted Answer

Observing that all observed plants in a region have green leaves and concluding that all plants in that region are green.

Question 19

Which of the following is a correct statement about the three domains of life?

Accepted Answer

Bacteria and Archaea are both prokaryotic, while Eukarya includes all eukaryotic organisms.

Question 20

Which of the following best describes the role of model organisms in biological research?

Accepted Answer

Model organisms allow scientists to study biological processes that are often applicable to other species, including humans.

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

Study Guide - Practice Questions

Study Guide - Flashcards