A water-vascular system is unique to the:
a. arthropods
b. annelids
c. chordates
d. mollusks
e. echinoderms
e
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Consider the cladogram shown. Which pair of species shares the greatest number of derived characters (synapomorphies)?
A. 4 and 2
B. 5 and 4
C. 6 and 1
D. 6 and 2
E. 5 and 2
The directional movements of the ocean currents are mainly due to the ________
a. force of the wind b. amount of rainfall the region receives c. distance to the sun d. depth of the water e. temperature of the water
Lizards and snakes are living members of this lineage
a. Testudines b. Archosauromorpha c. Squamata d. Sphenodontia e. Amphibia
Extracellular matrix is typically composed of ____
a. polysaccharides and fibrous proteins b. fibrous proteins and microtubules
c. polysaccharides and microfilaments d. fibrous proteins and phospholipids e. polysaccharides and phospholipids