Name______________________________________ Date_________________
Science
Directed Reading pgs. 56-60
PG#
Cells: The Basic Units of Life
As you read pages 56-60, answer the following questions.
Section 1: Organization of Life (pg.56)
3. All of the items necessary for ____________________________________ are contained in a
single cell.
Cells: Starting Out Small (pg.56)
Mark each of the following statements True or False
_____4. All cells are too small to be seen without a microscope.
_____5. You began as a single cell.
_____6. All your cells look and act the same.
7. Look at Figure 2. How many cells do you have in your body? _________________
Tissues: Cells Working Together (pg.57)
8. Cells that have similar functions group together to form ______________________.
9. What are 3 examples of cells that make up tissues pictured in the text?
__________________________, ________________________, _________________________
Organs: Teams Working Together (pg.57)
10. Organs are made up of groups of __________________________.
11. Look at Figure 4. Your _______________________ is the largest and most visible organ in
your body.
Organ Systems: A Great Combination (pg.58)
12. What is an organ system? _______________________________________________________
_______________________________________________________________________________
13. What would happen if the digestive system stopped working? __________________________
________________________________________________________________________________
________________________________________________________________________________
Organisms: Independent Living (pg.59)
14. An _______________________________ is anything that can live on its own.
15. Some organisms are made of 1 cell.
True or False (circle one)
16. Are the cells of your body considered organisms? ____________________________________
________________________________________________________________________________
________________________________________________________________________________
17. You are an example of a unicellular organism? True or False (circle one)
The Big Picture (pg.59-60)
Choose the term in Column B that best matches the example in Column A, and write the
corresponding letter in the space provided. Terms may be used more than once.
Column A
Column B
_____18. an ocean
A. organism
_____19. the people, dogs, & cats in a town
_____20. a group of organisms of the same
kind that live in the same area
_____21. all the ladybird beetles in a forest
_____22. the soil, rocks, trees, beetles, and
other organisms in a forest
_____23. a ladybird beetle
_____24. groups of organisms living in the same
area & the nonliving things that affect them
_____25. a dog
_____26. 2 or more different groups of organisms
living in the same area
_____27. the oak trees, flowers, lizards, & other organisms
in a forest
B. population
C. community
D. ecosystem