Members of Genus X, a Hypothetical Taxon of Invertebrates, Have

question 85

Multiple Choice

Members of genus X, a hypothetical taxon of invertebrates, have antennae with a variable number of segments. Species A and B have 10 segments; species C and D have 9 segments; species E has 8 segments. In all other genera in this family (including genus Y) , all species have antennae with 10 segments. Which of the following character states is a synapomorphy that would be useful for determining evolutionary relationships within genus X?

• A) 10-segment antennae in species A and B
• B) 10-segment antennae in genus Y and in two species of genus X
• C) Antennae with fewer than 10 segments in species C, D, and E
• D) 8-segment antennae in species E
• E) Both c and d

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Definitions:

IRR Cross-over

A concept where two projects have the same initial investment but differing cash flows leading to points at which their internal rates of return intersect.

NPV

Net Present Value is a financial metric that calculates the present value of all net cash flows (positive and negative) from an investment, discounted back at the investor's required rate of return.

Required Return

The minimum expected return an investor demands for a particular investment, reflecting the investment's risk.

NPV

An alternative measure for Net Present Value, reflecting the difference in the present value of cash inflows and outflows over a period of time.