Which Phylum of Vascular, Seed-Bearing Plants Has Only About 70

question 55

Multiple Choice

Which phylum of vascular, seed-bearing plants has only about 70 living species in three genera, including Welwitschia and Ephedra?

• A) Anthophyta
• B) Ginkgophyta
• C) Gnetophyta
• D) Coniferophyta

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Definitions:

Ecological Validity

The extent to which research findings can be generalized to real-life settings.

Experimental Control

The practice in scientific experiments of keeping variables constant except for the variable being tested, ensuring that observed effects can be attributed to the variable of interest.

Natural Disaster

Severe and extreme weather or environmental events, such as hurricanes, earthquakes, or floods, that cause significant damage to life, property, and the environment.

Connectionist Approach

A theory of cognition that models mental or behavioral phenomena as the emergent processes of interconnected networks of simple units.