The hormones directly necessary for sperm production are ___ (A) FSH and testosterone B FSH and LH (C) testosterone and inhibin (D) LH and teststerone

Stores water within a plant cell

Rugs, insulation, and artist brushes are made from a. sheep fats and fatty acids b. sheep horns, hooves, and bones c. sheep intestines d. sheep wool

Nerve cells in the stomach send messages to the brain.

Give the quantitative values for Earth's species diversity, and compare biodiversity across the Earth's surface.

The male reproductive structure that carries sperm from the epididymis into the adominal cavity is the ductus deferens (B) ejaculatory duct (C) rete testis (D) urethra