Multiple Choice
In single-celled organisms such as protozoa,__________ is/are the mechanism(s) used to move gases into and out of the body.
A) vascular gills
B) active transport
C) vascular membranes
D) diffusion
E) costal ventilation
Correct Answer:
Verified
Correct Answer:
Verified
Q23: The straw-colored,liquid part of blood is called<br>A)solute.<br>B)plasma.<br>C)hemoglobin.<br>D)formed
Q24: The formed-element fraction of vertebrate blood consists
Q25: The oxygen-carrying cells of vertebrate blood are
Q26: The fluid in insects that is analogous
Q27: In which vertebrate class is cutaneous respiration
Q29: Which of the following is NOT true
Q30: The oxygen-carrying pigment found in the erythrocytes
Q31: The mammalian heart has<br>A)two ventricles and one
Q32: Book lungs are found in<br>A)snails.<br>B)lobsters.<br>C)beetles.<br>D)spiders.<br>E)lizards.
Q33: In which organisms do skeletal muscles squeeze