Normal interstitial fluid has a PO2 40 mm Hg and PCO2 of 45 mm Hg. As a result,
A) both oxygen and carbon dioxide diffuse into the capillaries.
B) both oxygen and carbon dioxide diffuse out of the capillaries.
C) no diffusion occurs.
D) oxygen diffuses out of the capillaries and carbon dioxide diffuses in.
E) oxygen diffuses into the capillaries and carbon dioxide diffuses out.
D) oxygen diffuses out of the capillaries and carbon dioxide diffuses in.
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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.
The attenuation reflex
A. amplifies loud noises. B. enhances low frequency sounds. C. prevents damage to delicate ear structures. D. involves the scala vestibuli and the scala tympani. E. vibrates the tympanic membrane.
A/an ______________ is an intact female dog
Fill in the blank(s) with correct word
Most fevers are the body's way of ________
A) Breaking up the cells of the pathogens B) Killing all pathogens C) Making an inhospitable environment for pathogens to survive D) Preventing pathogens from reproducing