During Chordate Evolution, Which of the Following Structures Arose First

question 4

Multiple Choice

During chordate evolution, which of the following structures arose first?

• A) paired fins
• B) jaws
• C) four-chambered heart
• D) amniotic egg

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Definitions:

Refuse

To indicate unwillingness to accept, do, engage with, or consent to something.

Payable After Sight

A payment term indicating that the amount is due a certain number of days after the invoice or bill is presented and seen by the debtor.

Promissory Note

A financial instrument that contains a written promise by one party to pay another a definite sum of money either on demand or at a specified future date.

Contract Of Sale

A legal agreement where the seller agrees to sell and the buyer agrees to buy goods or property under specified terms and conditions.