D - Good conductors of electricity :)
<em>A circadian rhythm /sɜːrˈkeɪdiən/ is any biological process that displays an endogenous, entrainable oscillation of about 24 hours. These 24-hour rhythms are driven by a circadian clock, and they have been widely observed in plants, animals, fungi, and cyanobacteria.</em>
the correct answer is a)I only
Perhaps the best known unconfined aquifer is the Ogallala. In many places this aquifer is near the surface and recharge depends on water that collects at the surface in wetlands. ... A playa lake is a naturally occurring wetland (averaging about 17 acres) formed when rain fills small depressions in the prairie. (https://texasaquaticscience.org/aquifers-springs-aquatic-science-texas/)
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Several months after split-brain surgery, the number of incidents of conflicts between the two hemispheres diminishes. Conflicts between the two hemispheres eventually diminish because the left hemisphere suppresses the right hemisphere's interference.
A&C
Answer:
A walrus stays warm in the cold ocean or penguins can stay warm in cold arctic waters.