The process of gas exchange in parabronchi is similar to:
a. osmosis in spiracles.
b. respiration in tracheal tubes.
c. concurrent exchange in gills.
d. diffusion in small animals.
e. countercurrent exchange in gills.
e
You might also like to view...
The blood-brain barrier does not
a. protect the brain and the spinal cord. b. select which substances can enter the cerebrospinal fluid. c. allow oxygen, carbon dioxide, and alcohol to pass from the blood to the cerebrospinal fluid. d. block glial cells from migrating to the spinal cord e. shield the brain from many changes in the blood
If each nucleotide coded for a single amino acid, how
many different types of amino acids could be combined to form proteins? a. 4 b. 16 c. 20 d. 64 e. none of these
The term that refers to those microbes found as symbionts in a short relationship of a nongrowing nature is ________.
Fill in the blank(s) with the appropriate word(s).
As stem cell research rapidly developed, it became a political and ethical issue. Describe how the ethical and political approach toward stem cell research has changed in the past decade
What will be an ideal response?