Select the correct statement regarding epithelia
A) Simple epithelia form impermeable barriers.
B) Pseudostratified epithelia consist of at least two layers of cells stacked on top of one another.
C) Stratified epithelia are tall, narrow cells.
D) Stratified epithelia are present where protection from abrasion is important.
D
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A(n) ________ is an offspring resulting from the mating of two different species
A) embryo B) spotter C) gomer D) hybrid
Which of the following will occur in response to HYPOVENTILATION?
A. the pH of the blood will increase B. levels of blood O2 will increase C. alveolar CO2 will decrease to near atmospheric levels D. levels of blood H+ ions will increase E. alveolar oxygen will increase toward atmospheric levels
The cristae are the inner portions of the _____.
A) mitochondria B) ribosome C) inclusion bodies D) centrosome
A motor unit consists of
A. a single motor neuron and the multiple muscle fibers it controls. B. multiple motor neurons and multiple muscle fibers. C. an end plate, a T-tubule, and sarcoplasmic reticulum. D. multiple motor neurons and the one muscle fiber they control. E. one synaptic terminal button, a cleft, and an acetylcholine receptor.