Because They Are Morphologically Simple,Psilotophyta Have Traditionally Been Thought to Be

question 28

Multiple Choice

Because they are morphologically simple,Psilotophyta have traditionally been thought to be a basal group in the radiation of land plants.Molecular phylogenies have challenged this hypothesis and support the alternative hypothesis that _____.

• A)they are the sister group to the seed plants
• B)they represent a grade rather than a monophyletic group
• C)they have lost complex structures in this lineage
• D)they represent a lineage that forms a monophyletic group with Lycophyta

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Definitions:

Black-Scholes Model

A mathematical model used to price European-style options, evaluating their worth based on stock volatility, risk-free rate, and other factors.

Option Theta

A measure of the rate of decline in the value of an options contract due to the passage of time.

Underlying Asset

The financial asset upon which a derivative's value is based, such as stocks, bonds, commodities, or currencies.

Black-Scholes Model

A mathematical model used for pricing European call and put options, offering a theoretical estimate of the price of options based on time, volatility, and other factors.