A hypothesis regarding ancestor-descendant relationships that includes a time-scale is called a
a. cladogram.
b. phylogenetic tree.
c. phylogram tree.
d. hypogram tree.
e. clarion gram.
Question 2
The presumed evolutionary link between theropod dinosaurs and birds is based on
a. island dwarfing phenomenon.
b. general analogous characteristics.
c. a few shared ancestral characteristics.
d. derived (modified) characteristics such as the presence of feathers in both lineages.
e. evidence of hybridization between the two.
Relationships among major invertebrate lineages
Cardiac catheterization. Insertion of a tube called a catheter through a blood vessel. In this examp
Electrocardiography. (a) Electrodes are placed on the patient’s chest to record the electrical event
The respiratory system. (a) Sagittal section of the head and neck, revealing the organs of the upper
Telomere length is related to the amount of time adults spend in leisure time activity. Source: Ada
Zone dimensions are not drawn to scale.