Which hydrothermal vent organisms have no mouth, digestive tract, or anus?
a. sea anemones
b. white clams
c. vent shrimp
d. tube worms
e. vent sponges
d
You might also like to view...
Which is the correct geologic definition for a substance that occurs naturally as a solid and has a crystalline structure?
A. mineral B. ore C. rock D. granite
Large quantities of which of the following substances are injected into a thunderstorm as the primary method for preventing the growth of large, destructive hailstones?
A. silver iodide B. hydrophobic nuclei C. ice crystals D. dry ice
Which of the following is not one of the main families of rocks?
A) Sedimentary B) Igneous C) Metamorphic D) Meteorites
Which of these regions is high because of mantle upwelling near a continental rift?
A) 1, Andes of South America
B) 2, East Africa
C) 3, Tibet
D) None of these are correct.