Question 1

Which of the following is NOT one of the five fundamental characteristics of life as described in biology?

Accepted Answer

Respiration

Question 2

In Pasteur’s experiment testing cell theory, what was the main purpose of using a swan-neck flask?

Accepted Answer

To allow air in but prevent microbial contamination from dust particles

Question 3

A scientist is testing the effect of fertilizer on plant growth. She gives fertilizer to one group of plants and leaves another group without fertilizer. What is the independent variable in this experiment?

Accepted Answer

Presence or absence of fertilizer

Question 4

Which statement best describes a scientific theory?

Accepted Answer

An explanation for a general phenomenon, supported by strong evidence

Question 5

Which domain includes organisms with membrane-bound nuclei?

Accepted Answer

Domain Eukarya

Question 6

A student claims that supernatural forces caused a plant to grow faster. Why is this claim not considered scientific?

Accepted Answer

It cannot be tested or repeated using scientific methods

Question 7

Which of the following best illustrates the process part of a scientific theory?

Accepted Answer

Explaining how cell division occurs at the molecular level

Question 8

In the desert ant navigation experiment, what was the main conclusion?

Accepted Answer

Ants calculate distance using stride length and number

Question 9

Which of the following is a reliable source of scientific information?

Accepted Answer

Peer-reviewed journal articles

Question 10

A biologist wants to test if a new drug affects heart rate in mice. She measures the heart rate before and after giving the drug. What is the dependent variable?

Accepted Answer

Heart rate of the mice

Question 11

Which step in the scientific method involves making a testable explanation for an observation?

Accepted Answer

Forming a hypothesis

Question 12

Why must experiments include a control group?

Accepted Answer

To provide a baseline for comparison

Question 13

Which classification level is more specific than 'Family' but less specific than 'Species'?

Accepted Answer

Genus

Question 14

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

Accepted Answer

An experiment that produces the same results when performed by different scientists

Question 15

If a population of bacteria evolves resistance to an antibiotic over time, which fundamental characteristic of life does this illustrate?

Accepted Answer

Evolution

Question 16

Which of the following best describes the difference between prokaryotes and eukaryotes?

Accepted Answer

Prokaryotes lack membrane-bound nuclei, eukaryotes have them

Question 17

A scientist observes that giraffes with longer necks win more fights and have more offspring. Which hypothesis does this evidence support?

Accepted Answer

Long necks help giraffes win mates through sexual competition

Question 18

Which of the following is the correct order of steps in the scientific method?

Accepted Answer

Observation, Hypothesis, Prediction, Experiment, Analysis, Conclusion

Question 19

Which equation would you use to calculate the average stride length of ants in the desert ant navigation experiment if you know the total distance traveled ($$d) $$and the number of steps ($$n$$)?

Accepted Answer

$$\frac{d}{n}$$

Question 20

A scientist wants to extend the results of a small experiment to a larger population. Which tool should she use to test the significance of her findings?

Accepted Answer

Statistics

Chapter 1: The Scientific Method & Biology Basics – Study Notes

Guida di studio - Domande di pratica

Study guide - Flashcard