Consider the following bill of material. Forty units of Product A are needed. Assuming no on-hand inventory, and no scheduled receipts, explode the bill of material. 
Definitions:
Tunicates
Marine invertebrates, also known as sea squirts, that are part of the subphylum Tunicata, characterized by a tough outer tunic and filter-feeding mode of nutrition.
Lancelets
Small marine animals belonging to the subphylum Cephalochordata, characterized by their fish-like shape and a notochord extending the length of their body.
Out-of-Africa Hypothesis
A theory suggesting that modern humans originated in Africa before dispersing to other parts of the world.
Homo Sapiens
The species name for modern humans, characterized by bipedalism and a large brain capacity relative to body size.
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