Refer to the Figure

question 191

Multiple Choice

Refer to the figure. Which characteristic is shared by all the animals shown in the figure?

• A) Pharyngeal slits
• B) Internal skeleton
• C) Blastopore that develops into the anus
• D) Ciliated larva
• E) Water vascular system

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Definitions:

Confidence Interval Estimate

A span of numerical outcomes extracted from sampled observations that is expected to hold the accurate population statistic within a given confidence degree.

Population Proportions

The fraction or percentage of the total population that is characterized by a particular attribute or characteristic.

Antioxidants

Substances that can prevent or slow damage to cells caused by free radicals, often found in foods and believed to be beneficial for health.

Population Variances

A measure of the dispersion of a population's data points from its mean.