What are the least and most effective methods for preventing pregnancy?
What will be an ideal response?
Of course, abstinence is 100%, although human sexual desire is hard to overcome. Using no
protection, the rhythm method or withdrawal are only about 25% safe or lower. The most effective
contraceptive method is the implant (progestin).
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Correctly match each group of mollusks with the descriptions below. a. gastropods b. cephalopods c. bivalves d. gastropods and cephalopods only e. gastropods, cephalopods, and bivalves
_____ snails and slugs _____ obtain food by filtering particles from seawater using siphons _____ are able to learn visual patterns and solve puzzles _____ most of the 80,000 described species of mollusks fall into this one group What will be an ideal response?
Turner syndrome is associated with severe mental retardation. Indicate whether the statement is true or false
Which portion of the renal tubule empties directly into the collecting duct?
a. Bowman's capsule b. distal convoluted tubule c. proximal convoluted tubule d. descending loop of Henle e. ascending loop of Henle
The ____ is not part of the middle ear.
A. incus B. soma C. stapes D. malleus