You want to study the effects of a drug and can only test participants during a single two- hour period. You will probably NOT want to use a repeated measures design because of the problem of: differences among participants. extraneous variables. ethical violations. carry-over effects. confidentiality.

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

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

8. Which represent the molecules that diffuse into the organelle a. \( 6 \mathrm{CO} 2+6 \mathrm{H} 2 \mathrm{O} \) b. \( 6 \mathrm{H} 2 \mathrm{O}+6 \mathrm{O} 2 \) c. \( \mathrm{C} 6 \mathrm{H} 12 \mathrm{O}+6 \mathrm{O} 2 \) d. \( 6 \mathrm{CO} 2+6 \mathrm{O} 2 \)

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

Transports materials within the cell, also the site of protein synthesis