Characteristics of life and Scientific Method

Question 1

1 characteristic of life: contains______

Answer 1

nucleic acids, proteins, carbohydrates, lipids

Question 2

2 characteristic of life: composed of ______

Answer 2

cells

Question 3

3 characteristic of life: organisms ____ and ______

Answer 3

grow; reproduce

Question 4

4 characteristic of life: uses ____ and _______ _______

Answer 4

energy; raw materials

Question 5

5 characteristic of life: ____ to environment

Answer 5

responds

Question 6

6 characteristic of life: maintains ______

Answer 6

homeostasis (constant balance of internal environment)

Question 7

7 characteristic of life: populations _____ and have ______ traits (______ don’t)

Answer 7

evolve; adaptive; individual organisms

Question 8

prokaryotic characteristics

Answer 8

unicellular, internal structure, no membrane-bound organelles

Question 9

eukaryotic characteristics

Answer 9

uni/multi, larger, more structural organization (membrane-bound organelles)

Question 10

uniqueness of humans

Answer 10

knowledge transmission, culture (language, morality, creativity), bipedalism, tool usage, brain

Question 11

scientific method

Answer 11

systematic approach to answering questions

Question 12

hypothesis

Answer 12

falsifiable/testable scientific prediction of the experiment that is NEVER PROVEN

Question 13

theory

Answer 13

broad-ranging explanation for some aspect of the physical universe (generally confirmed/high supported by evidence)

Question 14

experimental/independent variable

Answer 14

purposely changed/manipulated in the experiment (other variables remain constant)