Which animal is considered to be a suspension feeder?
a. Fish
b. Sea stars
c. Sponges
d. Conches
ANS: C
Sponges are suspension feeders. This means they strain plankton and organic particles from the
surrounding water. Information can be found in the section Invertebrates Are the Most Successful and
Abundant Animals.
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Some ____ are considered to be extremophiles
a. Eukarya b. Archaea c. Plantae d. Animalia
Isotopes are the forms of an element that differ from one another by having different ____.
A. atomic numbers B. numbers of electrons C. numbers of protons D. mass numbers E. electrical charges
Which nonsilicate mineral has carbonate as a negatively charged complex ion?
a. gypsum b. calcite c. quartz d. halite e. olivine
Which of the following is an example of a mid-ocean ridge?
A) Puerto-Rico Trench B) Challenger Deep C) Mid-Indian Ridge D) East Pacific Rise