1. What is biology?
Biology is the scientific study of organisms?
2. What are organisms?
Living things
3. What is the definition of organisms?
No exact definition. Most scientists agree that organisms have the following characteristics:
Reproduction, nutrition, respiration, growth, excretion, irritability, movement
4. What are the 7 characteristics of living things?
Reproduction, nutrition, respiration, growth, excretion, irritability, movement
5. What is the definition of reproduction?
The process of producing new individuals.
6. What are offsprings?
New individuals produced by orangisms.
7. What is nutrition?
The process of obtaining foods.
8. What are foods?
Materials needed by organisms for energy, growth and maintaining health.
9. What is respiration?
The process of breaking down food to release stored energy.
10. What is growth?
The process by which organisms increase in size and in complexity.
11. What is the difference between the growth of animals and plants?
Most animals grow until they reach maturity
Most plants grow non-stop throughout their lives.
12. What is excretion?
The process of removing metabolic waste products.
13. What are metabolic wastes?
The waste products produced from chemical reactions in the bodies of organisms.
14. What is irritability?
The process of detecting changes in the environment(stimulus) and making response
15. What is stimulus?
(plural: stimuli)
Changes in the environment
16. What is sensitivity?
= irritability
17. What is movement?
The process of moving.
18. What is the difference between the movement of animals and plants?
Animals move freely from place to place.
Plants show a limited degree of movement, mostly involve in growth.
19. What are the general steps of scientific method?
(1) making observation
(2) asking a question
(3) proposing a hypothesis
(4) making a prediction
(5) doing experiment
(6) drawing a conclusion
20. What is a hypothesis?
The reasonable answer suggested to explain what is observed.
21. What is independent variable?
The variable to be changed in an experiment.
22. What is dependent variable?
The variable that may change with the independent variable. Usually dependent variable is the variable that we will observe or measure in an experiment.
23. What is controlled variables?
The variables that should be kept the same in an experiment.
24. What is control set-up?
A control set-up is identical to the experimental set-up, except that the factor under investigation is absent.
25. What is the aim of setting the control set-up?
It aims to ensure that result of the experiment is due only to the factor under investigation.
26. When will the hypothesis be supported?
Only when the experimental result match the prediction.