The common fungus Polyporus squamous forms large shelf-like structures that project from the lower portion of dead trees.
Answer the following statement true (T) or false (F)
True
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The bacterium Bacillus tumefaciens has been harnessed in biotechnology because it can insert a gene from one species of plant into another. This can also occur in nature and is referred to as
A. vestigial transfer. B. homology. C. horizontal gene transfer. D. vertical evolution. E. exon shuffling through endocytosis.
Was this a pre-mating or post-mating barrier?
a. pre-mating barrier, because individuals do not mate b. post-mating barrier, because hybrids are produced but they do not reproduce c. pre-mating barrier, because fertilization occurs but the hybrids are not viable d. post-mating barrier, because hybrids are sterile and unable to mate
One advantage of angiosperm seeds is the presence of seed ____, a nutritive tissue produced during fertilization that nourishes the developing embryo.
a. a coat b. endosperm c. ovule d. pollen sac e. ovary
A derived character that is shared by all members of a clade is called a ________ of that clade.
Fill in the blank(s) with the appropriate word(s).