The ________ zone extends from a depth of 200 to 4000 meters.
Fill in the blank(s) with the appropriate word(s).
bathyal
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What part of the attached bacteriophage enters through the host cell wall?
A. The entire virus B. Only the enzymes necessary for replication C. The nucleic acid D. The nucleic acid and capsid E. The capsid only
Mendel was able to identify predictable patterns of heredity. He succeeded mainly because he chose to study traits that
A.) were always dominant. B.) tended to be recessive. C.) could be diluted. D.) had only two forms.
Which of the following pairs is mismatched?
A) Basidiomycota — basidiospores B) Ascomycota — conidiospores C) Zygomycota — sporangiospores D) microsporidia — lack mitochondria E) anamorphs — lack spores
Animal cells have "counters" that keep track of how many times a cell has divided. These counters are called:
A) centromeres. B) odometers. C) telomeres. D) nuclei. E)chromosomes.