Bryophyte spores are ________.
A. haploid
B. diploid
C. both diploid and haploid depending on the generation
D. neither diploid nor haploid
Answer: A
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Why has cystic fibrosis persisted at such a high
percentage in some populations?
a. affected individuals reproduce before the disease is fatal b. there is an advantage to being a carrier c. recessives have a higher fitness than dominants d. it is an easily treated disease e. the symptoms disappear in early adulthood
The portion of the fundamental niche that an organism actually exploits in the presence of competitors is called its ________ niche
Fill in the blank(s) with correct word
Translation is where:
A. -ssRNA is used by ribosomes to produce a protein B. -dsRNA is used by ribosomes to produce a protein C. mRNA is used by ribosomes to produce a protein D. mDNA is used by ribosomes to produce a protein E. +dsRNA is used by ribosomes to produce a protein
Which of these insectivorous plants does not use an active trapping mechanism?
A. Venus flytraps B. bladderworts C. pitcher plants D. the aquatic waterwheel E. sundews