The head and tail regions, ventral and dorsal regions, right and left sides are established by:
A) the primitive streak. B) the chorionic villi.
C) the allantois. D) ingression.
Answer: A
You might also like to view...
Which protein makes up the thick filaments?
A. Myosin B. Actin C. Tropomyosin D. Troponin E. Myopathy
___________________ drugs are not used in medical facilities due to high addictive potential
Fill in the blank(s) with correct word
Which of the following statements about ATP is false?
A) ATP drives the transport of certain solutes (e.g., amino acids) across cell membranes. B) ATP activates contractile proteins in muscle cells so that cells can shorten and perform mechanical work. C) ATP provides the energy needed to drive energy-absorbing chemical reactions. D) ATP is a modified nucleotide. E) The phosphate groups of ATP are attached by high-energy hydrogen bonds.
The ________ layer of the dermis consists of areolar tissue.
What will be an ideal response?