The spinal cord is considered to be hollow due to:
a. the presence of ventricles throughout its length.
b. the presence of a central canal.
c. the presence of an encased vessel.
d. the presence of a thin outer cell layer.
e. It is not hollow.
B
You might also like to view...
The disinfectant action of phenol and phenolic derivatives mainly is due to
A. extraction of lipids from membranes. B. oxidation of disulfide bonds in proteins. C. membrane damage and protein denaturation. D. damage to nucleic acids and proteins caused by free radicals. E. its inherent detergent action.
In garden peas, one pair of alleles controls the height
of the plant, and a second pair of alleles controls flower color. The allele for tall (D) is dominant to the allele for dwarf (d), and the allele for purple (P) is dominant to the allele for white (p). A tall plant with white flowers crossed with a dwarf plant with purple flowers produces all tall offspring with purple flowers. What is the genotype of the parents? What will be an ideal response?
All fungi
a. are saprobes. b. digest food extracellularly. c. are parasites. d. digest food intracellularly. e. can ingest food particles.
As an individual grow fatter, further weight gain is minimized by diet-inducing _________.
Fill in the blank(s) with the appropriate word(s).