Vertebrate and invertebrate immune systems are similar in that their first line of defense is a nonspecific external barrier; however, they differ in that invertebrates do not produce white blood cells
Indicate whether the statement is true or false
FALSE
Biology & Microbiology
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The formation of polyploids in plants is an example of which model of cladogenesis?
A. Parapatric speciation B. Allopatric speciation C. Sympatric speciation
Biology & Microbiology
Archaea that have been cultured in the laboratory include ____
a. Crenarchaeota and Euryarchaeota b. Crenarchaeota and Korarchaeota c. Euryarchaeota and Korarchaeota d. Euryarchaeota and Nanorarchaeota e. Nanoarchaeota and Korarchaeota
Biology & Microbiology
Within the life cycle of Neurospora crassa, strands of exactly eight spores are
A. haploid. B. iploid. C. asci. D. both diploid and haploid. E. both asci and haploid.
Biology & Microbiology
A pheromone is a chemical signal secreted into the environment
____________________ Indicate whether the statement is true or false.
Biology & Microbiology