According to the phylogeny shown below, which of the following is a synapomorphy of ascomycetes and basidiomycetes?
A. regular septa
B. complex, multicellular fruiting bodies
C. chitin in cell walls
D. hyphae
E. All the answer options are correct.
A
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Bioluminescence occurs as a result of
a. luminescent organs. b. symbiotic bacteria. c. conversion of protein luciferin into light energy d. both a and b e. both b and c
What is responsible for the large surge of progesterone in the menstrual cycle?
a. the maturation of the follicle b. the surge in estrogen c. the surge in LH d. the release of the egg e. the formation of the corpus luteum
What is contained in each of the two daughter cells that result from normal mitotic division of the original parent cell?
a. the same number of chromosomes and genes as the parent cell, and identical to those of the parent cell b. one-half the number of chromosomes as the parent cell, but different genes c. one-half of the number of chromosomes and genes as the parent cell, and identical to those of the parent cell d. the same number of chromosomes as the parent cell, but different genes
Select the correct sequence of vertebrate development beginning with fertilization.
A. fertilization ? gastrulation ? cleavage ? neurulation ? neural crest formation ? organogenesis B. fertilization ? cleavage ? gastrulation ? neurulation ? organogenesis ? neural crest formation C. fertilization ? neurulation ? gastrulation ? organogenesis ? neural crest formation ? cleavage D. fertilization ? gastrulation ? neurulation ? neural crest formation ? cleavage ? organogenesis E. fertilization ? cleavage ? gastrulation ? neurulation ? neural crest formation ? organogenesis