Author Question: What phylum contains sea jellies? A) Porifera B) Cnidaria C) Echinodermata D) ... (Read 43 times)

melina_rosy

  • Hero Member
  • *****
  • Posts: 531
What phylum contains sea jellies?
 A) Porifera
  B) Cnidaria
  C) Echinodermata
  D) Platyhelminthes

Question 2

What are the amphidromic points of the world ocean, and approximately how many are known to exist?



elyse44

  • Sr. Member
  • ****
  • Posts: 319
Answer to Question 1

B

Answer to Question 2


The amphidromic point of an ocean is the node or nodes near the center of the ocean basin. This point is a no tide point in the ocean and is the point around which the tidal crest rotates through one tidal cycle. Tidal crests sweep around amphidromic points like the spokes of a wheel from a rotating hub. Tide waves move around these points, counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere. The energy is dissipated across the ocean radiating the crests toward distant shores. About a dozen amphidromic points exist in the world ocean, with five of the points being in the Pacific.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Less than one of every three adults with high LDL cholesterol has the condition under control. Only 48.1% with the condition are being treated for it.

Did you know?

Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.

Did you know?

The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

Did you know?

The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.

Did you know?

Medication errors are more common among seriously ill patients than with those with minor conditions.

For a complete list of videos, visit our video library