Which cells are unique to vertebrates?
a. pharyngeal cells
b. neural crest cells
c. notochordal cells
d. oral hood cells
Ans: b. neural crest cells
Biology & Microbiology
You might also like to view...
The liquid component of the cytoplasm is known as the
A. cytoskeleton. B. thylakoid. C. stroma. D. cytosol.
Biology & Microbiology
Rickets is a nutritional disorder
a. that is most common among children 2 to 6 years old. b. caused by a lack of vitamin D. c. impairs a child’s ability to absorb calcium from the gut. d. encourages secretion of PTH. e. that does all of these
Biology & Microbiology
Birds typically have a large sternum with a bladelike vertical protrusion to which flight muscles attach called:
A. Radius B. Ulna C. Breastbone D. Keel E. Humerus
Biology & Microbiology
What are the benefits and challenges of an exoskeleton?
What will be an ideal response?
Biology & Microbiology