What species concept is used by paleontologists as they compare the physical characteristics of fossils to understand human evolution?
What will be an ideal response?
morphological
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Muscle cells are stimulated by acetylcholine released from the terminals of
A. transverse tubules. B. motor cell axons. C. sensory cell axons. D. motor cell dendrites. E. sensory cell dendrites.
Anaphylactic shock is an example of an
A) autoimmune disease. B) immunodeficiency disease. C) allergic response. D) acquired autoimmune disease.
If a DNA segment has the sequence GCTAA, what RNA sequence will be made from it?
A) CGUTT B) GCTAA C) CGAUU D) UGATT E) CGATT
A tetraploid plant species (with four identical sets of chromosomes) is probably the result of _________.
a. allopolyploidy b. hybridization and nondisjunction c. allopatric speciation d. autopolyploidy as well as hybridization and nondisjunction e. autopolyploidy