$$ \text{Average Growth Rate} = \frac{\text{Final Height} - \text{Initial Height}}{\text{Time Period}} $$

Question 1

Which of the following best describes the scientific method as used in biology?

Accepted Answer

A process of making observations, forming hypotheses, conducting experiments, and drawing conclusions.

Question 2

Which step in the scientific method involves making a prediction based on a hypothesis?

Accepted Answer

Formulating a prediction

Question 3

A biologist observes that a plant grows faster in sunlight than in shade. Which step of the scientific method is this?

Accepted Answer

Observation

Question 4

Which of the following is NOT a characteristic of living things?

Accepted Answer

Ability to remain unchanged over time

Question 5

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

Accepted Answer

Sweating to cool down when overheated

Question 6

Which of the following best describes metabolism?

Accepted Answer

The sum of all chemical reactions in an organism

Question 7

Which of the following is a correct application of the scientific method to a real-world scenario?

Accepted Answer

A doctor tests a new drug by giving it to patients and comparing their recovery to those who did not receive the drug.

Question 8

Which of the following is a plausible hypothesis for why leaves change color in autumn?

Accepted Answer

Leaves change color due to decreased chlorophyll production as daylight hours shorten.

Question 9

Which of the following is an example of a controlled experiment?

Accepted Answer

Testing the effect of fertilizer on plant growth by using two groups: one with fertilizer and one without.

Question 10

Which of the following is a correct formula for calculating the average growth rate of a plant over a period of time?

Accepted Answer

$$ 	ext{Average Growth Rate} = \frac{	ext{Final Height} - 	ext{Initial Height}}{	ext{Time Period}} $$

Question 11

Which of the following is a major theme in biology?

Accepted Answer

Evolution

Question 12

Which of the following best describes the process of development in living organisms?

Accepted Answer

A series of changes that occur as an organism grows and matures

Question 13

Which of the following is an example of a response to a stimulus?

Accepted Answer

A plant bending toward light

Question 14

Which of the following is a correct definition of a hypothesis?

Accepted Answer

A testable explanation for an observation

Question 15

Which of the following is a correct sequence of steps in the scientific method?

Accepted Answer

Observation → Hypothesis → Experiment → Conclusion

Question 16

Which of the following is a real-world example of metabolism?

Accepted Answer

A person digesting food to release energy

Question 17

Which of the following is a correct formula for calculating the percentage increase in mass of an organism?

Accepted Answer

$$ 	ext{Percentage Increase} = \frac{	ext{Final Mass} - 	ext{Initial Mass}}{	ext{Initial Mass}} 	imes 100 $$

Question 18

Which of the following is a plausible explanation for why organisms must maintain homeostasis?

Accepted Answer

To keep internal conditions stable for proper functioning

Question 19

Which of the following is a correct example of a prediction in the scientific method?

Accepted Answer

If fertilizer is added to soil, then plants will grow taller.

Question 20

Which of the following is a correct formula for calculating the rate of change in temperature during an experiment?

Accepted Answer

$$ 	ext{Rate of Change} = \frac{	ext{Final Temperature} - 	ext{Initial Temperature}}{	ext{Time Interval}} $$

Introduction to Evolution, Scientific Inquiry, and Themes of Biology

Study Guide - Practice Questions