The Two Principal Types of Conducting Cells in the Xylem

question 22

Multiple Choice

The two principal types of conducting cells in the xylem are _________ and ________.

• A)tracheids;vessel elements
• B)sieve tubes;companion cells
• C)sieve cells;sieve tube members
• D)guard cells;tracheids
• E)protoderm cells;pericycle cells

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Definitions:

Impulsive Physical Aggression

The sudden, violent act towards others without premeditation, often as a result of impulsivity.

Childhood-onset Conduct Disorder

A mental disorder diagnosed in childhood or adolescence characterized by a repetitive and persistent pattern of behavior that violates the rights of others or societal norms.

Behavioral Problems

Actions or patterns of behavior in individuals that are socially unacceptable or disrupt others' ability to function.

Pediatrician

A medical doctor specializing in the care and treatment of children and their diseases.