$$\mathrm{C_6H_{12}O_6$} + 6\mathrm{O_2$} \rightarrow 6\mathrm{CO_2$} + 6\mathrm{H_2O} + \text{energy}$$

Question 1

Which of the following is NOT considered one of the fundamental characteristics of living organisms?

Accepted Answer

Ability to photosynthesize

Question 2

Which process best explains the diversity of life forms observed on Earth?

Accepted Answer

Natural selection

Question 3

A scientist wants to test the effect of sunlight on plant growth. Which is the independent variable in this experiment?

Accepted Answer

Amount of sunlight

Question 4

Which of the following best describes a hypothesis in the scientific method?

Accepted Answer

A testable prediction

Question 5

Which equation best represents the process of cellular respiration?

Accepted Answer

$$\mathrm{C_6H_{12}O_6$} + 6\mathrm{O_2$} ightarrow 6\mathrm{CO_2$} + 6\mathrm{H_2O} + 	ext{energy}$$

Question 6

Which statement best explains the difference between a theory and a hypothesis?

Accepted Answer

A theory is supported by a large body of evidence, while a hypothesis is a tentative explanation.

Question 7

In a controlled experiment, why is it important to have a control group?

Accepted Answer

To compare results and determine the effect of the independent variable

Question 8

Which of the following is an example of homeostasis in humans?

Accepted Answer

Sweating to cool down when overheated

Question 9

Which of the following best describes the relationship between evolution and natural selection?

Accepted Answer

Natural selection is a mechanism that drives evolution

Question 10

A student observes that plants grow faster in blue light than in red light. What is the next step in the scientific method?

Accepted Answer

Formulate a hypothesis

Question 11

Which of the following is a dependent variable in an experiment measuring the effect of fertilizer on plant height?

Accepted Answer

Height of the plant

Question 12

Which of the following is NOT a step in the scientific method?

Accepted Answer

Ignoring contradictory evidence

Question 13

Which of the following best illustrates the concept of adaptation?

Accepted Answer

A polar bear's thick fur for insulation in cold climates

Question 14

Which of the following statements about scientific theories is TRUE?

Accepted Answer

They are supported by extensive evidence and experimentation

Question 15

Which of the following is an example of quantitative data?

Accepted Answer

The plant grew 5 cm in one week

Question 16

Which of the following best describes the process of experimental design?

Accepted Answer

Identifying variables, creating a hypothesis, and testing predictions

Question 17

Which of the following is a reason why scientists use controlled experiments?

Accepted Answer

To isolate the effect of one variable

Question 18

Which of the following is a qualitative observation?

Accepted Answer

The solution turned blue after adding the reagent

Question 19

Which of the following best explains why evolution is considered a unifying theme in biology?

Accepted Answer

It explains the diversity and unity of life through common ancestry and adaptation

Question 20

Which of the following is an example of applying the scientific method to a real-world medical case?

Accepted Answer

A doctor hypothesizes that a new drug will lower blood pressure, tests it on patients, and analyzes the results

Chapter 1: Introduction to Biology – Study Guide Notes

Study Guide - Practice Questions