For gas exchange to occur quickly and efficiently, which type of epithelium must be present on all respiratory surfaces?
a. pseudostratified columnar epithelium
b. simple squamous epithelium
c. ciliated columnar epithelium
d. stratified squamous epithelium
e. ciliated squamous epithelium
b
You might also like to view...
Mutation of the peripheral myelin protein 22 (PMP22) gene, which causes demyelination of peripheral neurons, is a more common cause of Charcot-Marie-Tooth disease. In which cells is the PMP22 gene important for normal function?
Charcot-Marie-Tooth is the most commonly inherited peripheral neuropathy, and has no known cure. Patients suffer damage to motor and sensory neurons, leading to degeneration of muscles and gradual loss of motor control. A. Schwann cells B. preganglionic neurons C. postganglionic neurons D. oligodendrocytes E. interneurons Clarify Question · What is the key concept addressed by the question? What type of thinking is required Gather Content/Choose Answer · What do you already know about components of the nervous system? What other information is related to the question? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
In order for a muscle to contract, calcium ions released from the sarcoplasmic reticulum must bind to
A. troponin. B. myosin. C. tropomyosin. D. ATP. E. actin.
Which of the following statements is false?
a. Ovulation occurs when the follicle ruptures and releases an egg. b. The zygote divides by mitosis during cleavage. c. Fertilization occurs in the upper regions of the oviduct. d. The blastocyst implants in the endometrial lining of the uterus. e. Implantation occurs about 36 hours after fertilization.
Mechanical isolation may occur when two species have different:
A) sized and shaped copulatory organs B) courtship displays C) times of the day that they are sexually active D) habitat ranges E) chemical compatibilitie of their gametes