1 Chapter 1.1

2 the science of life or living matter in all its forms biology

3 The primary focus of all biological studies is understanding the world of living things and how they react.

4 The study of biology includes the investigation of interactions among species.

5  Many have not been named yet…others not yet discovered.

6 By studying biology, you can better appreciate the great diversity of species on Earth and the way each species fits into the dynamic pattern of life on the planet

7  The answers lead to biological principles and rules

8  Living things do not exist in isolation  There is a delicate balance in nature  Living things depend on other living and non-living things

9 All living things depend on other living things for their existence; all living things play a part in the delicate balance of life.

10  They propose solutions  Can lead to medical treatment, disease prevention, species preservation, etc.

11 application of scientific research to society's needs and problems technology

12  Organization – an orderly structure – basic unit is cell  Reproduction – produce offspring  Growth – increase in living material, new structures  Response to Stimuli – interact with their environment  Maintain Homeostasis – regulate their environment  Obtain and use materials – energy  As a group they evolve – changing over time

13  Organization – an orderly structure – basic unit is cell

14 To be considered living, something must exhibit all of the characteristics of life. Organism is another word for living thing. Every living thing, single-celled organisms to complex, multicellular plants and animals, is made up of parts that function together in an orderly living system.

15 orderly structure of cells in an organism organization

16 anything that possesses all the characteristics of life organism

17 a group of organisms that can interbreed and produce fertile offspring in nature species

18  Reproduction – produce offspring

19 Examples of reproduction: Pollen grains released from a flower Bean plants producing seed in a pod An amoeba dividing in half

20  Growth – increase in living material, new structures

21 increase in the amount of living material and formation of new structures in an organism growth

22 all the changes that take place in the life of an organism development

23 A corn plant producing ears of corn is an example of: growth development reproduction

24  Response to Stimuli – interact with their environment

25 any condition in an environment that requires an organism to adjust stimulus

26 biotic and abiotic surroundings to which an organism must constantly adjust environment

27 an organism's reaction to a change in its internal or external environment response

28  Maintain Homeostasis – regulate their environment

29 organism's regulation of its internal environment to maintain conditions suitable for survival homeostasis

30 Obtain and use materials – energy

31 the ability to do work energy

32  As a group they evolve – changing over time

33 the ability of a species to survive in a particular ecological niche, esp. because of alterations of form or behavior brought about through natural selection adaptation