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:

Belongingness Needs

A fundamental human need to form and maintain strong, stable interpersonal relationships.

Esteem Needs

These are psychological requirements for respect, self-esteem, and recognition, forming a part of Maslow's hierarchy of needs.

Psychoanalysis

A set of theories and therapeutic techniques related to the study of the unconscious mind, developed by Sigmund Freud, that aims to treat mental disorders.

Emotionally Disturbed

Refers to individuals who exhibit significant difficulty in emotional regulation, leading to behaviors that are socially unacceptable or disruptive, often diagnosed in children and adolescents within educational settings.