The Seeds of Orchids Are Among the Smallest Known, with Virtually

question 31

Multiple Choice

The seeds of orchids are among the smallest known, with virtually no endosperm and with miniscule seed leaves. Consequently, what should one expect to be true of such seeds?

• A)They require extensive periods of dormancy during which the embryo develops.
• B)They are surrounded by brightly coloured, sweet fruit.
• C)They germinate very soon after being released from the ovary.
• D)The developing embryo within is dependent upon the gametophyte for nutrition.
• E)The sporophytes that produce such seeds are wind-pollinated.

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Definitions:

Poisson Distribution

A probability distribution that models the number of times an event occurs in a fixed interval of time or space when these events occur with a known constant mean rate and independently of the time since the last event.

Nuclear Power Plant

A facility that uses nuclear reactions to generate heat, which is then used to produce electricity.

Probability

A measure of the likelihood that an event will occur, often expressed as a number between 0 and 1.

Poisson Random Variable

A type of discrete random variable that expresses the probability of a given number of events occurring in a fixed interval of time or space.