SECTION 1 REVIEWPAGE 73

QUESTION 1List the characteristics of plants.*Eukaryotic cells with cell walls*Pigments for photosynthesis*Most have roots, stems, and leaves

QUESTION 2Compare and Contrast the characteristics of vascular and nonvascular plants.*Both have eukaryotic cells with cell walls and carry out photosynthesis. *Vascular plants have tubelike structures to carry materials.*Nonvascular plants do not.

QUESTION 3Identify three adaptations that allow plants to survive on land. *Adaptations listed may include the cuticle, vascular tissue and seeds.

QUESTION 4Explain why binomial nomenclature is used to name plants.*It gives every species of plant a unique two-word name.

QUESTION 5Thinking Critically. If you left a board lying on the grass for a few days, what would happen to the grass underneath the board? Why?*The grass might die. Light is needed for photosynthesis.

QUESTION 6Form a hypothesis about adaptations a land plant might undergo if it lived submerged in water.*A thicker cuticle or a system for pumping water from cells could be needed. Some might have a long stem to raise leaves above the water.

BrainBoosterNames in the Family

The members of the Smith family call each other by nicknames. Mr. Smith is called Pop, Mrs. Smith is called Mom, Anna Smith is called Sis, and little Johnny Smith is called Bro. What characteristic do the nicknames for Mr. Smith, Mrs. Smith, and Anna Smith have in common that is not shared by Johnny Smith's nickname?Extra challenge:Once you've answered the question, think of real first names for Mr. and Mrs. Smith that have the same characteristic in common as their nicknames. (Hint: Anna's name already has that characteristic.)