Most of the body’s internal environment is at a pH
between
a. 6.8 and 7.2
b. 7.0 and 7.2
c. 6.5 and 7.5
d. 7.3 and 7.5
e. 7.5 and 8.0
Answer: d
You might also like to view...
The yeast Saccharomyces cerevisiae produces haploid cells of two mating types, a and ?, which are morphologically similar. Cells of opposite mating types can mate. Saccharomyces cerevisiae is a(n) ___________ species
A. isogamous B. heterogamous C. prokaryotic D. asexual
Which two observations led Darwin to conclude that there is competition for survival?
A. Fossils and mutations B. Overproduction of organisms and limited food resources C. Gene and allele differences in organisms D. Natural selection and descent with modification
The anticodon of the tRNA molecule base pairs with
a. DNA. b. mRNA. c. amino acids. d. polypeptides. e. rRNA.
Which of the following is NOT a common characteristic of both taste and smell receptors?
a. respond to airborne chemicals b. receptors constantly replaced c. information passes through thalamus d. perception occurs in cerebral cortex e. information integrated with emotional states