Deserts appear to be the least likely habitats in which to find animals with skins that are very permeable to water, yet amphibians, especially anurans, inhabit deserts all over the world. How is this possible?
What will be an ideal response?
Paradoxically it is their permeable skins that allow amphibians to inhabit deserts. Because they can absorb water from soil through their pelvic patch, amphibians can rehydrate from moist soil that they reach by burrowing into the ground or by entering tunnels created by burrowing mammals.
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Why does a sarcomere appear to be banded, and of what are the bands composed?
What will be an ideal response?
Blood pressure in the glomerulus is ________ than in other capillaries due to the relatively large diameter of ________ arterioles.
A. higher; afferent B. lower; efferent C. lower; afferent D. higher; efferent
Alveoli are surrounded by a dance network of capillaries. This structural characteristic is related to their function which is
fluid balance gas exchange Surfactant production All of the above
AIDS is caused by viruses that specifically invade _____.
A) the liver B) B cells C) T cells D) neutrophils