USDA Department of Agriculture

Science Facts Written by USDA Department of Agriculture

Biology

Nematodes Are Everywhere

Nematodes are simple worms consisting of an elongate stomach and reproduction system inside a resistant outer cuticle (outer skin). Most nematodes are so small, between 400 micrometers to 5 mm long, ... Continue reading

Soybean cyst nematode female (large lemon-shaped) with egg mass. Eggs are also retained inside the female body, which becomes a resistant structure capable of surviving harsh environmental conditions for several years. The diameter of the mature female is approximately 300 micrometers.

Science

Inventor: George Washington Carver

George Washington Carver, born a slave in 1864 (approximately), contributed significantly to agricultural research. Although he was orphaned as an infant, endured hardship in pursuit of his education, ... Continue reading