What is the structure aerenchyme in sea grass equivalent to in brown algae?
a. Gas bladder
b. Thallus
c. Holdfast
d. Blade
a
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What is a population's carrying capacity?
A. Its density-independent growth B. Its maximum population size to remain stable C. Its exponential growth over time D. Its minimum population size to avoid extinction
The major portal of entry for Aspergillus is the ________.
A. gastrointestinal tract B. urinary tract C. respiratory tract D. skin
For applications in gene therapy, what is the most favorable characteristic of retroviruses?
A) Retroviruses have an RNA genome. B) Retroviruses possess reverse transcriptase. C) DNA copies of retroviral genomes become integrated into the genome of the infected cell. D) Retroviruses mutate often.
Serologic tests may be used to detect ________ for diagnosis of disease.
A. the concentration of serum proteins B. the ability of the patient's antibodies to activate the complement system C. antigen-specific antibodies D. specific epitopes E. the proportion of plasma in a patient's blood