The Circulatory System of Earthworms Is

question 16

Multiple Choice

The circulatory system of earthworms is

• A)closed with hearts pumping blood to the anterior arteries and veins returning from the posterior.
• B)open with blood "washing" through the coelomic cavity.
• C)half closed with hearts pushing blood toward the head but washing posteriorly through an open cavity.
• D)closed with dorsal and ventral blood vessels joined by five paired "hearts" forcing circulation flow dorsal-ventrally.
• E)absent and they rely solely on diffusion to absorb gases through the epidermis.

---

Definitions:

Callable Bond

is a type of bond that gives the issuer the right to redeem the bond before its maturity date, under specific conditions.

Call Option

A financial contract that gives the buyer the right, but not the obligation, to buy an underlying asset at a specified price within a certain time frame.

Transactions Costs

Expenses incurred when buying or selling goods or services, including the costs of trading financial instruments.