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Use the following information to answer the question.
Healthy individuals of Paramecium bursaria contain photosynthetic algal endosymbionts of the genus Chlorella. When within their hosts, the algae are referred to as zoochlorellae. In aquaria with light coming from only one side, P. bursaria gather at the well-lit side, whereas other species of Paramecium gather at the opposite side. The zoochlorellae provide their hosts with glucose and oxygen, and P. bursaria provides its zoochlorellae with protection and motility. P. bursaria can lose its zoochlorellae in two ways:
(1) if kept in darkness, the algae will die; and (2) if prey items (mostly bacteria) are absent from its habitat, P. bursaria will digest its zoochlorellae.
Theoretically, P. bursaria can obtain zoochlorellae either vertically (via the asexual reproduction of its mother cell) or horizontally (by ingesting free-living Chlorella from its habitat) . Consider a P. bursaria cell containing zoochlorellae but whose habitat lacks free-living Chlorella. If this cell subsequently undergoes many generations of asexual reproduction, if all of its daughter cells contain roughly the same number of zoochlorellae as it had originally contained, and if the zoochlorellae are all haploid and identical in appearance, then which statement is accurate? The zoochlorellae ________.
Standard Price Per Pound
A predetermined cost set for a pound of material, used in budgeting and costing to assess efficiency and variances in purchasing or production.
Total Direct Materials Cost Variance
The difference between the actual cost of direct materials used in production and the expected (or standard) cost.
Total Variable Overhead Variance
The difference between the actual variable overhead costs incurred and the expected (or budgeted) variable overhead costs.
Material Quantity Variance
A financial measurement that calculates the difference between the expected amount of materials and the actual amount used, affecting production costs and efficiency.
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