Which of the following is NOT considered to be a key derived morphological innovation within the
vertebrate lineage?
a. neural crest cells
b. notochord
c. bone
d. vertebrae
e. cranium
B
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Areas that receive heavy rainfall tend to have ____ soils, and arid regions tend to have ____ soils
a. acidic; alkaline b. pH-neutral; acidic c. alkaline; acid d. acidic; pH-neutral e. pH-neutral; alkaline
Transcription and translation can be coupled in bacteria but not eukaryotes because
A) no nuclear membrane exists in prokaryotes. B) no nuclear membrane exists in eukaryotes. C) the bacterial DNA is in a single chromosome. D) eukaryotic chromosomes are found in nucleoids.
The universal response when a ligand binds to a receptor is the ligand falls off.
a. true b. false
The portion of the fundamental niche that an organism actually exploits in the presence of competitors is called its ________ niche
Fill in the blank(s) with correct word