The majority of vascular plants possess or are
characterized by
a. leaves.
b. dependent gametophytes.
c. seeds.
d. microspores and megaspores.
e. all of these.
E
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Only about ____ of the sunlight falling on plant leaves is captured by photosynthesis.
A. 1% B. 10% C. 25% D. 50%
The almost complete loss of the American chestnut tree to the chestnut blight fungus had __________
ecological impact on the moderately diverse Appalachian woodlands of which it was formerly a part. a. little b. great c. moderate d. undetectable e. detectable.
Part of a chromosome breaks away and then reattaches to the same chromosome in reverse orientation.
a. Crossing-over b. Inversion c. Translocation d. Nondisjunction e. Deletion
A particular fibroblast mutation fails to move to the site of infection. It is discovered that this mutation causes a particular protein to be absent, which leads to premature actin mRNA translation. Which protein is most likely absent due to the
mutation? A) ZBP1 (zip code-binding protein) B) CPEB C) general transcription factor D) poly-A polymerase E) Src