There Is a Group of Invertebrate Animals Called Rotifers, Among

question 42

Multiple Choice

There is a group of invertebrate animals called rotifers, among which a particular group of species reproduces, as far as is known, only asexually. These rotifers, however, have survived a long evolutionary history without evidence of having been overcome by excessive mutations. Since the rotifers develop from eggs, but asexually, what can you predict?

• A) The eggs and the zygotes are all haploid.
• B) The animals are all hermaphrodites.
• C) While asexual, both males and females are found in nature.
• D) All males can produce eggs.
• E) No fertile males can be found.

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Definitions:

Standard Error

A statistic that measures the dispersion of sample means around the population mean.

Sample Mean

The arithmetic average of a sample set of data, used to estimate the population mean.

Normally Distributed

Describes a data set that follows a bell-shaped curve where most observations cluster around the mean and probabilities for values taper off symmetrically towards both extremes.

Standard Deviation

Standard deviation is a measure of the amount of variation or dispersion of a set of values, indicating how much the values in the set differ from the mean.