Aquatic salamanders and tadpoles obtain oxygen from water when it passes over the gill filaments.
which condition would lead to maximum absorption of o2 by the gills?
a) low oxygen in the water, low oxygen in the blood
b) low oxygen in the water, high oxygen in the blood
c) high oxygen in the water, low oxygen in the blood
d) high oxgyen in the water, high oxygen in the blood

The lake of the ozarks is a human-made lake, so it collects runoff from coal strip-mining, fertilizers, resort wastewaters, and septic drainages. the average lake temperature is between 10∘c and 21∘c. consider the physical requirements for growth and multiplication that would allow fecal coliforms to “blossom” in the lake of the ozarks. which of the following would accurately describe these organisms? check all that apply. psychrophiles facultative halophiles extremophiles mesophiles hyperthermophiles