A ________ is a procedure where a temporary opening is made in the trachea to allow airflow when the upper airway is obstructed.
Fill in the blank(s) with the appropriate word(s).
tracheostomy
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In a certain male individual, primary spermatocytes do not divide into secondary spermatocytes, yet still undergo spermiogenesis and form mature sperm. How will the resulting sperm differ from normal sperm?
A. The abnormal sperm will be diploid instead of haploid. B. The abnormal sperm are all type A cells. C. The abnormal sperm will have 23 chromosomes instead of 46. D. The abnormal sperm won't develop a tail or acrosomal cap.
Define the law of mass action.
What will be an ideal response?
Chromosomes carry genes and genes carry genomes
Indicate whether the statement is true or false
Which of the following statements about blood vessels is FALSE?
A. Large and medium-sized arteries are deep. B. Veins that accompany arteries often have the same names. C. Deep veins are often paired. D. Most medium and large veins have one-way valves. E. Anastomoses are more common in arteries than veins.