The Common Ancestor of the Protostomes Had a Coelom

question 24

Multiple Choice

The common ancestor of the protostomes had a coelom. What does this suggest?

• A) All lophotrochozoans have a coelom.
• B) There are no pseudocoelomates within the protostomes.
• C) There are no acoelomates within the protostomes.
• D) The body cavity evolved before the lophophore.

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A 32-bit number that masks an IP address, and divides the IP address into network address and host address.

Class B Addresses

A range of IP addresses in Internet addressing designated for medium-sized networks, allowing for a significant number of hosts within each network.

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The failure of one or more transmitted packets to arrive at their destination in a network.

Tracert

A Windows command line network troubleshooting command that displays the path a data packet takes through a network, thus allowing you to see where a fault occurs in larger networks. Compare with traceroute, used in macOS and Linux.