Which of the following statements about the fundamental and realized niche are true? Check all that apply.
_____ A species' realized niche could be the same size as its fundamental niche.
_____ A species' realized niche could be smaller than its fundamental niche.
_____ A species' fundamental niche can be smaller than its realized niche.
_____ The extent of the realized niche is determined, in part, by interspecific competition.
_____ The extent of the fundamental niche is determined, in part, by conditions of the physical environment.
__X__ A species' realized niche could be the same size as its fundamental niche.
__X__ A species' realized niche could be smaller than its fundamental niche.
_____ A species' fundamental niche can be smaller than its realized niche.
__X__ The extent of the realized niche is determined, in part, by interspecific competition.
__X__ The extent of the fundamental niche is determined, in part, by conditions of the physical environment.
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DNA polymerase can catalyze a dehydration synthesis reaction only at the 3' carbon of the daughter strand of DNA. This means that
A. Okazaki fragments extend toward the replication fork as the parent strands are unzipped by helicase. B. the leading and lagging strands extend in the 3' - 5' direction toward the replication fork as the nucleotide bases are exposed. C. since the strands are antiparallel, one strand will grow toward the fork as it opens, and the other strand will grow in fragments away from the fork. D. the antiparallel nature of the parent molecules determine that the leading strand must be grown in fragments away from the fork and the lagging strand is synthesized continuously toward the fork.
Atlantic reefs have a deeper buttress zone and are dominated by fire coral
Indicate whether the statement is true or false
If a patient is diagnosed with a peptic ulcer, which genus of Proteobacteria is probably responsible?
a. Desulfovibrio b. Campylobacter c. Myxococcus d. Helicobacter
What type of cell does Ehrlichia chaffeensis infect in humans?
A. capillary endothelial cells B. B lymphocytes C. neutrophils D. monocytes E. eosinophils