Why Were Frogs and Sea Urchins Typically Used to Study

question 13

Multiple Choice

Why were frogs and sea urchins typically used to study development in classical anatomy and embryology?
1) The eggs developed outside of the mother.
2) The eggs were easily manipulated.
3) The animals were easy to breed.

• A) 1
• B) 2
• C) 3
• D) 1 and 2
• E) All of these are correct.

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Definitions:

Trade Deficit

The economic condition that arises when a country imports more goods and services than it exports.

Unfair Trade Practices

Business activities deemed unjust, deceptive, or fraudulent that can affect fair competition in the market.

Self-Sufficiency

The ability of an individual or economy to meet all its needs without external assistance.

Balance of Trade

The variance between what a country spends on imports and earns from exports during a certain timeframe.