Introduction to Biology
Multiple Choice Questions
5. Which of the following best demonstrates the unity among all organisms?
(1) matching DNA nucleotide sequences
(2) descent with modification
(3) the structure and function of DNA
(4) natural selection
(5) emergent properties
6. A controlled experiment is one that
(1) proceeds slowly enough that a scientist can make careful records of the results.
(2) tests experimental and control groups in parallel.
(3) is repeated many times to make sure the results are accurate.
(4) keeps all variables constant.
(5) is supervised by an experienced scientist.
7. Which of the following statements best distinguishes hypotheses from theories in science?
(1) Theories are hypotheses that have been proved.
(2) Hypotheses are guesses; theories are correct answers.
(3) Hypotheses usually are relatively narrow in scope; theories have broad explanatory power.
(4) Hypotheses and theories are essentially the same thing.
(5) Theories are proved true; hypotheses are often falsified.
8. Which of the following is an example of qualitative data?
(1) The temperature decreased from 20°C to 15°C.
(2) The plant’s height is 25 centimeters (cm).
(3) The fish swam in a zigzag motion.
(4) The six pairs of robins hatched an average of three chicks.
(5) The contents of the stomach are mixed every 20 seconds.
Structures Essay Questions
1. Following diagram shows a simple illustration of the scientific method. What are the word hidden beneath the green boxes.
10. Name the characteristic features of living organisms.
- observation, hypothesis, prediction, experiment
- Order and organisation, Metabolism, Growth and development, Irritability and coordination, Adaptation, Reproduction, Heredity and evolution