Blood types A, B, AB, and O are determined by ________.
A. carbohydrates on the surface of the red blood cells
B. the capacity of the blood to respond to infections
C. the capacity of the blood to respond to transfusions
D. carbohydrates on the surface of the white blood cells
Answer: A
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Darwin recognized that female preference for showy colors based on inheritance causes these male
traits to become more common over time. ________ Indicate whether the statement is true or false.
Pest or weedy species are typically __________ and exhibit type __________ survivorship curves
a. r-selected; I b. r-selected; II c. r-selected; III d. K-selected; I e. K-selected; III
Multiple forms of a gene are referred to as _________________.
A) traits B) alleles C) characters D) dominant alleles