Check your learning: self-test

1. List the 8 properties of life and define them:

2. Imagine you are investigating if something is alive. After some laboratory tests, you detect that it is processing energy, it reproduces and maintains a relatively stable internal environment. What would be your conclusion? Justify your answer.

3. Imagine you are investigating if something is alive. After some laboratory observations, you notice that it is capable of moving, but there seems to be no energy processing, no ability to reproduce, no regulation and the internal environment is not stable. What would be your conclusion? Justify your answer:

4. The maintenance a relatively stable internal environment is called:

a) regulation

b) homeostasis

c) development

d) energy processing

5. Organisms possess traits that have been shaped by natural selection and they enhance the individual’s ability to reproduce and to survive in their environment. What are such traits called?

a) reproduction

b) adaptation

c) positive traits

d) sensitivity

6. How would you classify a feedback loop that enhances and amplifies change in the internal environment? Justify your answer:

7. How would you classify a feedback loop that reverses change in the internal environment? Justify your answer:

8. List the steps of the scientific method in order:

9. New knowledge can be generated by extensive observation of the natural world, leading to general conclusions. This procedure is characterized by _____________________ reasoning.

10. New knowledge can be generated by testing hypothesis in scientific experiments. This procedure is characterized by ____________________ reasoning.

11. What is a hypothesis?

a) It is the predicted results of an experiment.

b) It is a type of inductive reasoning.

c) It is a type of scientific question.

d) It is a tentative answer to a scientific question.

12. What are the differences between basic and applied science?