Which scientist specializes in categorizing and describing groups of organisms?
A) botanist
B) entomologist
C) herpetologist
D) systematist
D
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When the optic vesicle contacts overlying ectoderm, developmental events are induced, leading to ____ in the
developing lens.
a. crystallin and keratin synthesis b. crystallin synthesis c. keratin synthesis d. degradation of crystalline and keratin e. apoptosis
According to the Hardy-Weinberg principle, if 75% of the alleles in the gene pool are A1 and 25% are A2, what is the proportion of individuals with genotype A1A2 in this population?
A) 0.1875 B) 0.375 C) 0.0625 D) 0.5625 E) 0.025
Which of these is NOT a direct factor that controls biotic potential?
A. The age at which reproduction generally begins B. The resources available for each individual C. Reproductive rate D. Predators and pathogens E. Genetic mutations
If the hemoglobin molecules in your red blood cells suddenly were unable to bind carbon dioxide and hydrogen ions, what would happen to your blood pH?
A) It would increase. B) It would stay the same. C) It would decrease.