Which characteristic is common to all groups represented on this evolutionary tree?
a. vertebrae
b. bony skeleton
c. four limbs
d. amniotic egg or sac
A
You might also like to view...
The P wave of the ECG represents
A. the depolarization of the atria. B. the contraction of the ventricle. C. the repolarization of the atria. D. the relaxation of the atria. E. the contraction of the atria.
Which of the following is the normal path of a
normal “cystic fibrosis” protein?
a. endoplasmic reticulum to Golgi body to plasma membrane b. Golgi body to endoplasmic reticulum to plasma membrane c. endoplasmic reticulum to Golgi body to nuclear membrane d. Golgi body to endoplasmic reticulum to nuclear membrane e. endoplasmic reticulum to Golgi body to mitochondrion
What is the function of centrioles?
A) They are the structure that holds the two daughter chromatids together at the centromere. B) They cause cytokinesis via the concentric shortening of microtubules. C) They are required for DNA replication. D) They produce microtubules for the chromosomes to migrate along as they move to opposite poles of the cell.
Blood vessels called ___ carry blood back to the heart.
What will be an ideal response?