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Author Question: Which of the following have tentacles armed with stinging cells called nematocysts? A) Cnidarians ... (Read 22 times) |
Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.
This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
Thyroid conditions may make getting pregnant impossible.
Carbamazepine can interfere with the results of home pregnancy tests. If you are taking carbamazepine, do not try to test for pregnancy at home.
The familiar sounds of your heart are made by the heart's valves as they open and close.