Which of the following transport processes requires the energy of ATP to move substances across the plasma membrane?

A) Diffusion
B) Osmosis
C) Facilitated diffusion
D) Active transport
E) Filtration

Which organ is part of the urinary system?

A) kidneys
B) mouth
C) esophagus
D) uterus
E) pancreas

From the following list, select the one organic substance found in the human body.

A) Oxygen
B) Water
C) Glucose
D) Calcium

Burning of fossil fuels, use of synthetic fertilizers, and industrial livestock production all add which compound to the atmosphere?

A) nitrous oxide (N₂O)
B) phosphate (PO₄³⁻)
C) nitrate (NO₃⁻)
D) nitrite (NO₂⁻)
E) ammonium (NH₄⁺)

The ________ receives lymph from the lymphatic ducts of the hindlimbs, pelvis, and abdomen.

A) thoracic duct
B) cisterna chyli
C) spleen
D) right lymphatic duct

Which term refers to the tail end of a four-legged animal?

A) cephalic
B) superior
C) caudal
D) inferior