What temperature intertidal zone can be characterized as commonly having barnacles, rockweed, and mussels?
a. Supralittoral fringe
b. Infralittoral fringe
c. Subtidal zone
d. Midlittoral zone
d
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Vinegar is a good cleaning solution because it is a weak acid, while ammonia is a good cleaner
because it is a weak base.
Indicate whether the statement is true or false.All of the following are adaptations of sea snakes to a marine existence except:
a. trachea acting as accessory lung. b. gas exchange across their skin. c. oviparous reproduction. d. lower metabolic rate during submergence. e. flattened paddle tail.
In the Bombay phenotype, a gene in the recessive condition blocks the expression of A and B red blood cell antigens
Thus, all A, B, and AB genotypes are expressed as the O phenotype. This is an example of ____.
a. complete dominance b. epistasis c. incomplete dominance d. co-dominance e. pleiotropy
The number of chromosomes in a eukaryotic cell
a. differs in various somatic cells of an individual. b. varies during the life cycle. c. is haploid among asexually reproducing forms and diploid if they reproduce sexually. d. is the same for all members of a species. e. is dependent on the age of the tissue.