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Flatworms have three germ layers: ectoderm,mesoderm,and endoderm.
Capital Goods
Goods that are used in producing other goods and services, rather than being bought by consumers. This includes machinery, buildings, and equipment.
Consumer Goods
Items produced for personal use by households.
Production Possibilities Frontier
A curve depicting all maximum output possibilities for two goods, given a set of inputs consisting of resources and other factors.
Economic Growth
A rise in the output of goods and services in the economy, measured from one time period to another.
Q1: Humans become infected with liver flukes by<br>A)eating
Q1: The hemichordates are<br>A)bottom-dwelling marine animals.<br>B)deuterostomes.<br>C)fairly worldwide in
Q8: To a cladist,the statement that molluscs evolved
Q10: Selection for particular biological traits through their
Q12: A labor system whereby a limited number
Q12: In cnidarians,extracellular digestion occurs in the<br>A)gastrovascular cavity.<br>B)gastrodermal
Q22: The individual units of compound eyes are
Q25: The amniotes are a monophyletic group.
Q38: The study of taxonomy that measures the
Q45: The molluscs are the second most diverse