An ancestor and all of its descendants are known as a monophyletic group or a(n) ________
A) apomorphy
B) plesiomorphy
C) synapomorphy
D) clade
D
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Paland and Lynch showed that sexual populations possessed fewer deleterious mutations than asexual populations. These results supported the hypothesis that
A. sexual reproduction prevents fertilization with gametes carrying alleles with deleterious alleles. B. sexual reproduction produces fewer random mutations than asexual reproduction. C. asexual reproduction is associated with lower genetic diversity, resulting in the accumulation of highly deleterious mutations. D. in sexual reproduction, the reassorting of alleles allows for the elimination of more detrimental alleles than in asexual reproduction. E. sexual strains are associated with higher genetic diversity and thus accumulate more beneficial mutations than asexual strains.
Identify and briefly explain three adaptations of flowering plants that contributed to their evolutionary expansion and
success. What will be an ideal response?
Fossils show that this animal lived in the dark ocean. Each animal had a disc or a holdfast to attach it to the deep ocean floor.
The alternative pathway of complement cascade activation begins with ________ binding to the surface of a microbe
A) C1 B) C3a C) complement factor B D) C5a E) C5b