Inventions This African-American woman physical therapist worked with soldiers disabled in World War II. She invented a device that helped the disabled to eat by delivering food through a tube to a mouthpiece. Bessie Blount Marjorie Joyner Mae Jamison Beulah Henry Bessie Blount Marjorie Joyner Mae Jamison Beulah Henry ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade was the first solid state integrated circuit demonstrated? 1970s 1960s 1980s 1950s 1970s 1960s 1980s 1950s ANSWER DOWNLOAD EXAMIANS APP
Inventions Who developed the idea of Crop Rotation? Potato Peterson Swede Svenson Turnip Townsend Cabbage Carlson Potato Peterson Swede Svenson Turnip Townsend Cabbage Carlson ANSWER DOWNLOAD EXAMIANS APP
Inventions When was the toothbrush invented? 1790 1742 1770 1765 1790 1742 1770 1765 ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade was the telegraph invented? 1890s 1840s 1870s 1810s 1890s 1840s 1870s 1810s ANSWER DOWNLOAD EXAMIANS APP
Inventions Who synthesized the first wholly artificial gene? Hargobind Khorana Benjamin Franklin Meghnad Saha J.J. Thompson Hargobind Khorana Benjamin Franklin Meghnad Saha J.J. Thompson ANSWER DOWNLOAD EXAMIANS APP
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