The preprophase band consists of chromosomes aligned in a particular pattern. Indicate whether the statement is true or false
False - microtubules
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Many algal species have life cycles consisting of alternating haploid and diploid generations. The most
common life cycle in brown algae consists of organisms that are
a. unicellular in the haploid stage and multicellular in the diploid stage. b. multicellular in the haploid stage and unicellular in the diploid stage. c. unicellular in both the haploid and diploid stages. d. multicellular in both the haploid and diploid stages. e. colonial in both the haploid and diploid stages.
A requirement of cladistics is that a grouping must include ________
A) species that can interbreed B) only living species C) species with shared traits D) a common ancestor and all its descendants
Chromosomes contain large amounts of interacting proteins known as
a. pentanes. b. hexosamines. c. histones. d. protein hormones. e. histamines.
Action potentials relay different intensities of information due to the
A) amplitude of action potentials relative to the strength of the stimulus. B) frequency of action potentials relative to the strength of the stimulus. C) duration of action potentials relative to the strength of the stimulus.