Which of the following statements is true about a phylogeny, as represented by a phylogenetic tree?
I) Descendant groups (branches) from the same node do not necessarily share any derived characters.
II) A monophyletic group can be properly based on convergent features.
III) The ancestral group often has all the synapomorphies of the descendant species.
A) only I
B) only II
C) only III
D) None. Not I, II, or III.
D
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Charles Darwin and Alfred E. Neumann co-developed the theory of evolution by natural selection.
Indicate whether the statement is true or false
Which statement is true?
a. Only diploid plant stages are free-living. b. All spores are clones of their parent cells. c. Most plant and fungi spores are haploid. d. Gametophytes are larger than sporophytes.
________ is the process of naming and assigning organisms to a taxon.
A. Cladistics B. Classification C. Taxonomy D. Phylogeny E. None of the answer choices are correct.
Which structure(s) delivers the blood that contains regulatory hormones to the anterior pituitary gland?
A) secondary capillary plexus B) inferior hypophyseal artery C) portal vessels D) superior hypophyseal artery E) hypophyseal veins