Which of the following epithelia forms the walls of the air sacs across which gas exchange occurs in the lungs?

A) pseudosstratifed columnar

B) simple cuboidal

C) simple squamous

D) simple columnar

Which of the following is not a characteristic of s waves? a. travel slower than p waves. b. cannot be detected in locations more than 105° from an earthquake’s epicenter. c. travel through solids and liquids. d. only affect coastal regions.

Ameter stick is pivoted at the 0.50-m line. a 3.0-kg object is hung from the 0.15-m line. where should a 5.0-kg object be hung to achieve equilibrium (the meter stick oriented horizontal and motionless)?

What are atoms of the same element with varying number of neutrons