What Does the Ratio Return on Investment (ROI) Measure and What

question 104

Essay

What does the ratio return on investment (ROI) measure and what are some possible ways it can be computed?

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Definitions:

Ectoderm

The outermost of the three primary layers in an embryo that develops into the nervous system and the skin, among other structures.

Germ Layer

One of the primary layers of cells formed during embryogenesis, from which all tissues and organs of an organism develop.

Pseudocoelom

A fluid-filled body cavity lying inside the external body covering but outside the innermost gut tube, found in some invertebrates.

Phylogeny

The evolutionary history and lineage of species or a particular group of organisms.