Which term best describes the relationship between angiosperms and animal pollinators?
a. The plants coevolved with the animals.
b. The plants competed with the animals.
c. The plants have been driven to extinction by the animals.
d. The plants had antagonistic relationships with the animals.
Ans: a. The plants coevolved with the animals.
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In pre-mRNA processing, ____
a. exons are spliced out and used to produce ribosomal subunits b. introns are spliced out and combined to form complete proteins c. introns are spliced out and combined in the tRNA d. exons are spliced out and the introns are combined in the mature mRNA e. introns are spliced out and the exons are combined in the mature mRNA
Which statement about bilateral symmetry is FALSE?
a. Bilateral symmetry evolved in cnidarians. b. Bilateral animals tend to have cephalization. c. Bilaterally symmetrical animals has three axes. d. Bilateral symmetry animals have a mesoderm. e. Animals with bilateral symmetry have dorsal and ventral surfaces.
Which process specifically refers to a cell physically dividing into two cells?
A) Mitosis B) Cytokinesis C) Interphase D) Meiosis
Copernicus, Galileo, and Darwin found that ____ caused their science to be controversial.
A. prevailing belief B. objective data C. astronomical theories D. supernatural influences E. experimental design