A Derived Trait of Land Plants Is the Presence of Small

question 1

Multiple Choice

A derived trait of land plants is the presence of small openings that allow gaseous exchange between the plant and its environment. These structures are called

• A) cuticles.
• B) stomata.
• C) thallus.
• D) rhizoids.

---

Definitions:

PKa

A measure of acidity that indicates the strength of an acid by showing the equilibrium constant for the dissociation of acid into protons and its conjugate base.

Central Limit Theorem

A statistical theory that states that the sampling distribution of the mean of any independent, random variable will be normal or nearly normal, if the sample size is large enough.

Normal Distribution

A bell-shaped frequency distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean.

Finite Population Correction Factor

A factor applied to the calculation of sampling error when sampling without replacement from a finite population.