1. Name ___________________________________________________ Period __________________
Biology
Chapter 1 – Section 1.1
Biology explores life from the global to the microscopic scale
Write the definition and one fact for each of the vocabulary words.
1
1. Biosphere:
Definition:
________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________
Fact:
________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________
2. Ecosystem:
Definition:
________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________
Fact:
________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________
3. Organism:
Definition:
________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________
Fact:
________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________
3. Name ___________________________________________________ Period __________________
Biology
Chapter 1 – Section 1.1
Biology explores life from the global to the microscopic scale
3
The Biosphere (page 4)
The part of the earth and its atmosphere in which living organisms exist or that is capable of supporting
life, is called ______________________________________________________.
2. What does the biosphere consist of?
_______________________________________________________________________________________________________________________
_______________________________________________________________________________________________________________________
3. What is an Ecosystem?
_______________________________________________________________________________________________________________________
_______________________________________________________________________________________________________________________
_______________________________________________________________________________________________________________________
4. Give two examples of an ecosystem?
_______________________________________________________________________________________________________________________
_______________________________________________________________________________________________________________________
5. All of Earth’s ecosystems combined make up the ___________________________________________________________.
6. A synonym used to describe a living thing is called an _____________________________________________________.
7. Microscopic organisms are also called _______________________________________________________________________.
8. ________________________________________________ among the organisms of a community make each
___________________________________________________ a dynamic ( _____________________________________________________)
place.
9. The structural, functional and biological unit of all organisms is called a _________________________________
10. All organisms are made up of one or more ______________________________________________.
4. 11. What directs all of the activities throughout the cell? ___________________________________________
12. The sphere on Figure 1.3b represents atoms. Define atoms.
________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________
13. Atoms can ____________________________________ together, forming ____________________________________________.
4
14. Write the definition for DNA.
________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________
15. What is the function of a DNA molecule of a cell?
________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________
16. Along the length of each DNA molecule are units of inherited information called
__________________________________________________.
5. Name ___________________________________________________ Period __________________
Biology
Chapter 1 – Section 1.1
Biology explores life from the global to the microscopic scale
5
Concept Check 1.1
Answer all questions in complete sentences.
1. Which level of life includes all of the other levels in this list: organisms, cells, biosphere, molecules,
and ecosystems. ________________________________________________________________________________________________
____________________________________________________________________________________________________________________
2. Identify an ecosystem in a community? ___________________________________________________________________
3. What are genes? _____________________________________________________________________________________________
____________________________________________________________________________________________________________________
4. How are they related to DNA?
________________________________________________________________________________________________________________________
6. Name ___________________________________________________ Period __________________
Biology
Chapter 1 – Section 1.2
Biology explores life in its diverse forms
6
Notes: pages 7
Each different type of organism is an example of a __________________________________, or a distinct form of life.
Biologists have identified more than 1.5 __________________________________ species, and new species are
discovered almost daily. This growing catalog of known life forms includes approximately 5,000 species
of ___________________________________; 8,600 species of birds; 30,000 species of __________________________________;
100,000 species of fungi; 280,000 species of _______________________________; and 1,000,000 species of
_________________________________, by far the most diverse of all animals. Tropical _____________________________
______________________________________ are especially rich in species diversity.
Answer the following questions in complete sentences. (page 7 )
1. What is a Species?
________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________
2. Use Species in a complete sentence.
________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________
3. Explain the relationship between the term species and organism.
________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________
7. 7
Classifying Life: The Basic Idea (page 8)
Notes:
Humans have a tendency to place items in ________________________________________. This behavior may
explain why one of the oldest branches of biology is the study of ________ _____________________________________ -
organizing similar species into larger groups. You can compare an organism’s biological classification to
a _____________________________ _______________________________________. This describes a location by using
broader and broader categories. For example, an address specifies a particular
________________________________ or apartment number, but also a ___________________________________ (which
includes many houses), a __________________________________ (which includes many streets), and a
_________________________________________ (which includes many cities). The animal on the front of the
textbook is a species that is one of many large lizards called ________________________________________.
Answer the following questions in complete sentences.
1. Explain two different ways that you could classify the following items: banana, lemon, sandwich, milk,
orange, meatball, salad.
________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________
8. Name ___________________________________________________ Period __________________
Biology
Chapter 1 – Section 1.2
Biology explores life in its diverse form
8
The Three Domains of Life (page 9)
Notes: pages 9
In classifying life forms, many biologists call the broadest category a ________________________________.
According to this classification scheme, there are three domains: _____________ ______________________,
__________________________________, and ___________________________________. The organisms of the first two
domains are very tiny. Most of these organisms are __________________________________________, meaning that
their entire bodies consist of just a single ____________________________________. These cells are relatively
___________________________________. For example, they lack __________________________________ - their DNA is not
separated from the rest of the cell. These cells without nuclei are called ___________ _________________________
cells. Though domains ______________________________________ and ____________________________________ both
consist of prokaryotic organisms, they are otherwise very ________________________________________ from each
other.
Biologists divide each domain into subgroups called ____________________________________. For example,
domain Eukarya includes four kingdoms: __________________________________, _________________________________,
__________________________________, and _______________________________________. All the organisms of these four
subgroups consist of ________________________________________ cells. These cells contain nuclei that separate
__________________________________ from the rest of the cell. Like the prokaryotes, many protists and certain
_________________________________ are unicellular and __________________________________ in size. But other protists,
most fungi, and all animals and plants are ______________________________________________. These organisms are
made of many cells, not just one. Your own body, for example, has ___________________________________ of
cells.
9. Name ___________________________________________________ Period __________________
Biology
Chapter 1 – Section 1.2
Biology explores life in its diverse form
Answer the following questions in complete sentences.
9
1. Name the three domains of Life.
________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________
2. A unicellular has how many cells?
________________________________________________________________________________________________________________________
3. Which two organisms of life are unicellular?
________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________
4. Besides unicellular, what other features do they share?
________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________
5. List the four kingdoms of the Domains of Life.
________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________
6. Explain the main difference between organisms of the domains Bacteria and Archaea and organisms
of the domain Eukarya.
________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________
10. 10
Use Figure 1-7 to answer the questions.
7. All known organisms currently are classified into one of three domains. List the domains.
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
8. List the four kingdoms that make up Domain Eukarya.
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
11. Name ___________________________________________________ Period __________________
11
Biology
Chapter 1 – Section 1.3
Ten themes unify the study of life
Write the definition and a sentence using each vocabulary word.
1. System
Definition:____________________________________________________________________________________________________________
________________________________________________________________________________________________________________________
Sentence:_______________________________________________________________ ______________________________________________
________________________________________________________________________________________________________________________
2. Photosynthesis
Definition:_______________________________________________________ _____________________________________________________
________________________________________________________________________________________________________________________
Sentence:______________________________________________________________________ _______________________________________
________________________________________________________________________________________________________________________
3. Producer
Definition:____________________________________________________________________________________________________________
________________________________________________________________________________________________________________________
Sentence:_____________________________________________________________________________________________________________
________________________________________________________________________________________________________________________
4. Consumer
Definition:____________________________________________________________________________________________________________
________________________________________________________________________________________________________________________
Sentence:_____________________________________________________________________________________________________________
________________________________________________________________________________________________________________________
