What factor is a major reason for the success of reptiles?
a. Amniotic egg
b. Rearing of juveniles
c. Advanced circulatory system
d. Skin covered with tough scales
a
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Infection with which apicomplexan has been associated with fecal-contaminated drinking water?
A. Ascaris lumbricoides B. Rotavirus C. Cryptosporidium D. Entamoeba histolytica
Which variable has the stronger influence on the color of an individual's skin?
A. the individual's phenotype B. the individual's genotype C. the amount of time spent in the sun and the individual's genotype D. the amount of time spent in the sun E. Neither the sun nor the individual's genotype have any influence on the individual's skin color.
What is the most inclusive level of life's organization?
a. a niche b. the biosphere c. a population d. an ecosystem e. a community
What type of junction would be found in organs that are subject to stretching?
a. tight junctions b. elastic junctions c. basement membranes d. desmosomes e. gap junctions