Which of the following statements is most
correct concerning the ancestry of Eukarya?
a. The lineage that led to Eukarya consists
only of other eukaryotes.
b. The lineage that led to Eukarya consists
only of Archea.
c. The lineage that led to Eukarya consists
only of Bacteria.
d. The lineage that led to Eukarya consists of
Archaea and Bacteria.
e. There is no lineage that led to Eukarya.
Eukarya arose and has remained always in
stasis.
D
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The most common source of DNA mutation is _____; however, these mistakes are typically corrected
a. cigarette smoke b. UV light c. errors in DNA replication
d. errors in protein synthesis e. pesticides on the food we eat
Green algae are thought to be the closest relatives of
land plants for all EXCEPT which of the following reasons? a. All have cell walls of cellulose. b. All have chlorophylls a and b. c. They developed a cuticle and rhizoids that are characteristic of primitive land plants. d. They store excess carbohydrates as starch. e. All of these are true reasons.
When photosynthetic pigments are extracted from the chloroplasts of green plants, they have a higher
tendency to fluoresce than pigments within intact chloroplasts. Explain this phenomenon. What will be an ideal response?
The following is an emerging viral disease:
A. Herpes B. Zika C. Rubella D. Mumps E. Botulism