Chordates and echinoderms are both protostomes
Indicate whether the statement is true or false
FALSE
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Hair cells in the vertebrate ear are responsible for transducing sound pressure waves. Ion channels in the hair cell membrane open when _____
A) a chemical ligand binds to the ion channel B) light is absorbed by a molecule in the membrane C) the cell membrane reaches a threshold voltage D) the membrane is distorted mechanically
What is the most common form of cladogenesis?
A. Parapatric speciation B. Allopatric speciation C. Sympatric speciation
Stony, chondrite, achondrite, and stony-iron meteorite types are classified according to their
a. orbit. b. distance from the Sun. c. impact history. d. mineral content. e. coma.
The American kangaroo rat is characteristic of the desert biome. Indicate whether the statement is true or false