The wings of a bat and a bird are examples of
A. analogous structures.
B. homologous structures.
C. vestigial structures.
D. homeotic structures.
E. heterologous structures.
Answer: B. homologous structures.
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The ____________ of a comet can be up to a million kilometers in diameter
Fill in the blank(s) with correct word
The study of the patterns in the distribution of plants and animals around the world is
a. diversity. b. biogeography. c. ecology. d. archaeology. e. environmentalism.
Bacteriophages attach to the cell walls of bacteria by envelope proteins
____________________ Indicate whether the statement is true or false.
Which types of phenotypic ratios are likely to occur in crosses when dealing with three gene pairs for which all the genotypic combinations are of equal viability?
A) 12:3:1, 9:7 B) 1:2:1, 3:1 C) 2:3, 1:2 D) 1:4:6:4:1, 1:1:1:1 E) 27:9:9:9:3:3:3:1