Scientific methods & Characteristics of Life

Question 1

Cell

Answer 1

is the smallest entity that has all the characteristics of life

Question 2

Characteristics of life

Answer 2

growth
movement 
nutrition 
excretion
respiration 
reproduction 
sensitivity

Question 3

growth

Answer 3

increase in cell and size number

Question 4

movement

Answer 4

purposeful change of posture or position

Question 5

nutrition

Answer 5

obtaining energy and materials it needs

Question 6

excretion

Answer 6

removal of metabolic waste from the organism

Question 7

respiartion

Answer 7

obtaining energy in the form ATP with the breakdown of large complex molecules

Question 8

reproduction

Answer 8

make new organisms of the same specie

Question 9

response (sensitivity)

Answer 9

ability of an organism to detect change in its environment and alter its behavior

Question 10

metabolism

Answer 10

all chemical reaction taking place in a living organism

Question 11

continuity of life

Answer 11

all living cells are derived from other living cells

Question 12

biology

Answer 12

study of all living things

Question 13

The sequence of the Scientific Method

Answer 13

1. observation
2. hypothesis
3. predication
4. test (experiment )
5. results
6. replication
7. publish

Question 14

observation

Answer 14

accurate report of a natural phenomenon

Question 15

hypothesis

Answer 15

educated guess

Question 16

prediction

Answer 16

based on the hypothesis

Question 17

test

Answer 17

experiment check that the prediction is accurate
control : used for comparison
experiment : independent and dependent variable

Question 18

results

Answer 18

data or information gathered and collected

Question 19

replication

Answer 19

the experiment repeated

Question 20

Published

Answer 20

scientific journal

Question 21

theory

Answer 21

A hypothesis that stands up against all tests

Question 22

Principle or Law

Answer 22

theory that is successful against long term testing

Question 23

Limitations of the Scientific Method

Answer 23

1. Insufficient Knowledge
2. Method of Investigation: inadequate instruments
3. Inability to Interpret Results
4. Our changing Natural World
5. Human Error:
   • Improper use of measuring equipment
   • Inaccurate observation
   • Mistakes in recording
   • Scientific Fraud
6. Faulty Conclusions
7. Accidental Discoveries
8. Personal Bias:
9. Accuracy and Honesty

Question 24

Double-blind test

Answer 24

Experiment where neither patient nor doctor know who is getting the drug or placebo

Question 25

Placebo

Answer 25

A treatment (a pill or injection) without any active ingredient