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The next few questions refer to the following description.
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 gathers 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.
-Which term best describes the symbiotic relationship of well-fed P. bursaria to their zoochlorellae?
Joint Probability Distribution
Describes a probability distribution for two or more random variables simultaneously.
Car Salespeople
Professionals who specialize in selling automobiles, often working in dealerships to assist customers in finding and purchasing new or used vehicles.
Expected Return
The weighted average of all possible returns for an investment, based on the probabilities of each outcome.
Portfolio
A portfolio is a collection of financial investments like stocks, bonds, commodities, cash, and cash equivalents, including closed-end funds and exchange traded funds (ETFs).
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