Chapter 1 : Exploring Life

Question 1

Biology

Answer 1

The scientific study of life

Question 2

Unity

Answer 2

All living things exhibit differences from one another

Question 3

Diversity

Answer 3

All living things exhibit unique differences form one another

Question 4

7 Overall Themes explored in Biology

Answer 4

1. All forms of life share common properties
2. In life’s hierarchy of organization, new properties emerge at each level
3. Cells are the structural and functional unit of life
4. Organisms interact with their environment exchanging matter and energy
5. The unity of life is based on DNA and common genetic codes
6. The diversity of life can be arranged into 3 domains
7. Evolution explains the unity and diversity of life

Question 5

The common properties of all living things

Answer 5

Regulation 
Energy processing 
Order
Response to environment
Growth and development 
Evolutionary adaptation 
Reproduction

Question 6

Regulation (Common properties of life)

Answer 6

An ability to control an organisms environment within limits that sustain life (aka homeostasis)

Question 7

Energy processing (Common properties of life)

Answer 7

The use of chemical energy to power an organism’s actives and chemical reactions

Question 8

Order (Common properties of life)

Answer 8

All living things exhibit complex organization

Question 9

Response to Environment (Common properties of life)

Answer 9

An ability to respond to environmental stimuli

Question 10

Growth and development (Common properties of life)

Answer 10

Consistent growth and development controlled by inherited DNA

Question 11

Evolutionary adaptation (Common properties of life)

Answer 11

Adaptations evolve over many generations as individuals with traits best suited to their environments have greater reproductive success and pass their traits to offspring

Question 12

Reproduction (Common properties of life)

Answer 12

The ability of organisms to reproduce their on kind

Question 13

Hierarchy of organization (largest to smallest)

Answer 13

Biosphere 
Ecosystem 
Community 
Population
Organism 
Organ system 
Organ 
Tissue 
Cell 
Organelle 
Molecule 
Atom

Question 14

Biosphere

Answer 14

All of the environments on the Earth that support life

Question 15

Ecosystem

Answer 15

All the organisms living in a particular area and the physical components with which the organisms interact

Question 16

Community

Answer 16

The entire array of organisms living in a particular ecosystem

Question 17

Population

Answer 17

All the individuals of a species living in a specific area

Question 18

Organism

Answer 18

An individual living thing composed of many organ systems that function together

Question 19

Organ system

Answer 19

Several organs that cooperate in a specific function(s)

Question 20

Organ

Answer 20

A structure that is composed of tissues and that provides a specific function for the organism

Question 21

Tissue

Answer 21

A group of similar cells that perform a specific function

Question 22

Cell

Answer 22

The fundamental unit of life

Question 23

Organelle

Answer 23

Subunits of cells that perform specific functions

Question 24

Molecule

Answer 24

A cluster of small chemical units called atoms held together by chemical bonds

Question 25

Atom

Answer 25

Smallest unit of matter that retains unique properties of an element