The Siphonostele of Ferns

question 66

Multiple Choice

The siphonostele of ferns:

• A)is the most primitive type of stele.
• B)consists of a solid core of vascular tissues.
• C)occurs only in the roots.
• D)has a series of discrete strands around a central pith.
• E)has leaf gaps.

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Definitions:

Genetics

The study of genes, heredity, and the variation of organisms passed down from parents to offspring.

Reinforcement

In behavior psychology, a process that increases the likelihood of a behavior by following it with a positive outcome or the removal of a negative outcome.

Affect

Refers to the experience of feeling or emotion, part of the way individuals interact with and respond to the world around them.

Emotion

A conscious evaluative reaction that is clearly linked to some event.