Unlike humans, bottlenose dolphins do not suffer from the effects of sleep deprivation. Why?
A) Dolphins "catnap" throughout the day, so they don't need to go into deep sleep.
B) In dolphins, one half of their brain sleeps while the other half of the brain remains active.
C) Sleep is required to maintain brain function in humans, but not in dolphins.
D) Dolphins take turns waking each other up, so all have a chance to sleep.
Answer: B
You might also like to view...
Muscles visible at the body surface often called
A) externus. B) profundus. C) rectus. D) transversus. E) oblique.
These receptors detect specific molecules in our external and internal environments
A. Chemoreceptors B. Thermoreceptors C. Photoreceptors D. Mechanoreceptors E. Baroreceptors
When ionic compounds dissolve in water, their ions
A. dissociate or separate from one another. B. get lost in the solvent. C. settle to the bottom of the container. D. cling tightly together. E. lose their charge.
Correctly match the term and definition: Microvilli.
A)Long, cellular projections that are tail-like and aid in propulsion B)Small, barrel-shaped structures oriented at right angles to each other; form the bases of cilia and flagella C)Tiny fingerlike projections of the plasma membrane; increase surface area for absorption D)Motile cellular extensions found in large numbers in some epithelial cells