Orchid Seeds Are Tiny, with Virtually No Endosperm and with Miniscule

question 19

Multiple Choice

Orchid seeds are tiny, with virtually no endosperm and with miniscule cotyledons. If such seeds are deposited in a dark, moist environment, then which of the following represents the most likely means by which fungi might assist in seed germination, given what the seeds lack?

• A) by transferring some chloroplasts to the embryo in each seed
• B) by providing the seeds with water and minerals
• C) by providing the embryos with some of the organic nutrients the fungi have absorbed
• D) by strengthening the seed coat that surrounds each seed

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Definitions:

Interval Variables

Variables that have meaningful distances between measurements but do not have a true zero point, allowing for both positive and negative values.

Normality Requirement

The assumption that the data or residuals in certain statistical models follow a normal distribution, required for the validity of many tests.

Spearman Rank-Correlation

A nonparametric measure of rank correlation, assessing how well the relationship between two variables can be described using a monotonic function.

Nonparametric Test

A type of statistical test that does not rely on data belonging to any particular distribution.