Plants and Algae Most Recently Shared a Common Ancestor 480

question 14

Multiple Choice

Plants and algae most recently shared a common ancestor 480 million years ago,and plants colonized land shortly after that.Light,water,minerals,and dissolved gases surround the whole body of a submerged green alga,and the buoyancy of water provides physical support.What adaptation did plants have to make in taking up gasses without drying out when they moved to dry land?

• A)Production of pollen
• B)Development of stomata
• C)Development of vascular tissue
• D)Production of a cuticle
• E)Production of lignin

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Definitions:

Standard Deviation

An indicator of the degree to which a dataset's values vary or are dispersed, showing the extent of deviation from the average.

Normal Distribution

A distribution of probabilities that is even on both sides of the mean, illustrating that values near the mean happen more often than values at a greater distance from the mean.

Weibull Distribution

A continuous probability distribution used widely in reliability engineering and failure analysis, which can model various types of data including life data and failure times.

Binomial Distribution

A probability distribution that summarizes the likelihood that a variable will take one of two independent values under a given set of parameters or assumptions.